Document:

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                                [eVENTURES LOGO]

June 19th, 2000

Qwest Communications Corporation
Attention: Executive Vice President & General Counsel
555 Seventeenth Street
Denver, Colorado 80202

         Reference is made to (i) the IRU Agreement (the "IRU Agreement"), dated
as of September 30, 1999, by and between Qwest Communications Corporation
("QWEST") and e.Volve Technology Group, Inc. ("e.Volve") and (ii) Amendment #1
to the IRU Agreement (the "Amendment"), dated as of the date hereof, by and
among Qwest, e.Volve and AxisTel Communications, Inc. ("AxisTel"). All terms
defined in the IRU Agreement shall have the same meaning when used herein
unless otherwise defined herein.

         As consideration for the grant of the IRU in the Capacity pursuant to
the terms of the Amendment, eVentures Group, Inc. ("eVentures") agrees to pay or
cause to be paid to Qwest or an affiliate on the Acceptance Date (the "Closing"
Date") a purchase price of US $15.0 million (the "Purchase Price"), comprised of
(i) cash of $7.5 million and (ii) 421,461 shares of common stock, par value
$0.00002 per share, of eVentures (the "eVentures Stock")

         eVentures shall pay the Monthly Recurring O&M Fees (as set forth in the
Amendment) as follows:

          (A) on the Closing Date, eVentures agrees to deliver to U.S.
          Telesource, Inc. ("U.S. Telesource") 95,872 shares of eVentures Stock,
          such consideration in full satisfaction of $3,000,000 of the Monthly
          Recurring O&M Fees due during the term of the IRU.

          (B) eVentures shall pay or caused to be paid to Qwest the remaining
          Monthly Recurring O&M Fees on the first day of each month after the
          Closing Date for the term specified in the IRU Agreement and the
          Amendment at a rate of $10,000 per month.

<PAGE>

         The 517,333 shares of eVentures Stock to be issued pursuant to this
letter shall be issued in accordance with the terms of the Common Stock
Subscription Agreement dated as of the date hereof by and between eVentures and
U.S. Telesource, in the form of Exhibit A attached hereto.

         No publicity regarding the existence and/or terms of this letter, the
IRU Agreement and the Amendment may occur without Qwest's prior express written
consent, except that the parties hereto agree to issue a joint press release
announcing Qwest's investment in the eVentures Stock in a form to be agreed by
the parties. The content and timing of any press releases and all other
publicity regarding the subject matter of this letter, the IRU Agreement and the
Amendment or the relationship of eVentures and any of its affiliates with Qwest
and any of its affiliates, if authorized, shall be mutually agreed upon by the
parties.

                                           eVENTURES GROUP, INC.

                                           By: /s/ BARRETT N. WISSMAN
                                               --------------------------------
                                               Name:  Barrett N. Wissman
                                               Title: President

ACKNOWLEDGE AND AGREED:

QWEST COMMUNICATIONS CORPORATION

By: /s/ MARC B. WEISBERG
   -----------------------------
   Name:  Marc B. Weisberg
   Title: Sup.

                                      -2-
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                              eVENTURES GROUP, INC.

                       COMMON STOCK SUBSCRIPTION AGREEMENT

         This Subscription Agreement (this "Agreement"), is made and entered
into as of June 16, 2000, by and between eVentures Group, Inc., a Delaware
corporation (the "Company") and U.S. Telesource, Inc., a Delaware corporation
(the "Subscriber") in connection with (i) a payment letter (the "Payment
Letter"), dated as of the date hereof, from the Company to Qwest Communications
Corporation ("Qwest"), (ii) the IRU Agreement (the "IRU Agreement"), dated as of
September 30, 1999, by and between Qwest and e.Volve Technology Group, Inc.
("e.Volve") and (iii) Amendment #1 to the IRU Agreement (the "Amendment"), dated
as of the date hereof, by and among Qwest, e.Volve and AxisTel Communications,
Inc. ("AxisTel").

         1. AGREEMENT TO SUBSCRIBE.

         The Company agrees to deliver, and the Subscriber agrees to subscribe
for, that number of shares of common stock, par value $0.00002 per share (the
"Shares") of the Company set forth in the Payment Letter. The delivery of the
Shares shall be subject to the terms and conditions of the IRU Agreement and the
Amendment.

         The Company and the Subscribers understand that the subscription of the
Shares is scheduled to occur on June 16, 2000 (the "Closing Date").

         THE SUBSCRIBER UNDERSTANDS THAT THIS INVESTMENT IN THE COMPANY IS
ILLIQUID AND INVOLVES A HIGH DEGREE OF SPECULATIVE RISK.

         2. QUALIFICATIONS OF SUBSCRIBER.

         (a) Accredited Investor Status. The Subscriber hereby represents and
warrants to the Company that it is an "accredited investor", as defined in Rule
501 under the Securities Act of 1933 (the "Act"), and it has executed a letter
to that effect addressed to the Company, in the form attached as Exhibit A-1.

         (b) Sophisticated Investor Status. The Subscriber hereby represents and
warrants to the Company that alone, or with its purchaser representative (as
defined in Rule 501 under the Act), if any, the Subscriber has such knowledge
and experience in financial and business matters so as to be capable of
evaluating the merits and risks of this transaction and of an investment in the
Company.

         (c) Entity Investor Status. The Subscriber represents and warrants
that: (i) it has not been formed, re-formed, or recapitalized for the specific
purpose of receiving the Shares, or if it has been formed or re-formed for such
purpose, each of its beneficial owners of equity securities or equity interests
(including partners, in the case of a partnership) is an "accredited investor,"
as defined in Rule 501(a) under the Act; (ii) it has been duly formed and is
validly

<PAGE>

existing under the laws of the jurisdiction of its formation, with full power
and authority to enter into the transactions contemplated by this Agreement; and
(iii) this Agreement has been duly and validly authorized, executed, and
delivered by it and, when executed and delivered by the Company, will constitute
the valid, binding, and enforceable agreement of such entity, subject to general
equitable principles (whether considered in a proceeding in equity or at law).

         3. ACCESS TO INFORMATION; INDEPENDENT INVESTIGATION.

         (a) Receipt of Information. The Subscriber has carefully reviewed the
Registration Statement on Form 10 filed by the Company with the Securities and
Exchange Commission (the "SEC") on December 20, 1999, as amended on March 8,
2000 and May 22, 2000, including the unaudited and audited financial statements
and unaudited pro forma financial statements of the Company included therein
(together with all amendments to the date hereof, the "Form 10"). The Subscriber
has carefully reviewed and fully considered the contents of the Form 10,
including, without limitation, the material set forth under the caption "Risk
Factors".

         (b) Independent Investigation; Access. The Subscriber, in making the
decision to subscribe for the Shares, has relied upon independent investigations
made by the Subscriber, the financial and legal advisors to the Subscriber (if
any) and its purchaser representative (if any), and the Subscriber and such
representative (if any) has, prior to execution of this Agreement, been given
access and the opportunity to examine all material books and records of the
Company, all material contracts and documents relating to this offering, and an
opportunity to ask questions of and to receive answers from the Company, any
officer, director or employee of the Company, or any person acting on its behalf
concerning the Company and its businesses, the terms and conditions of this
offering or any other matter set forth in the Form 10 and an opportunity to
obtain any additional information, to the extent the Company possesses such
information or can acquire it without unreasonable effort or expense, necessary
to verify the accuracy of the information set forth in the Form 10.

         The Subscriber and its advisors, if any, have had access to (i) all
public materials requested by the Subscriber relating to the business, finances,
and operation of the Company, and (ii) materials relating to the subscription of
the Shares and (iii) anything set forth in the Form 10 that has been requested.
The Subscriber and its advisors, if any, have received complete and satisfactory
answers to any such inquiries.

         (c) No Other Representations. The Subscriber acknowledges that it has
not relied on any representation made to the Subscriber or the Subscriber's
purchaser representative (if any) concerning the Shares, the Company, its
business or prospects, or other matters, except as set forth in this Agreement,
in the Form 10 and in the other written materials referred to in Sections 3(a)
and (b) above.

         (d) Adequacy of Investigation. The Subscriber acknowledges that it is
subscribing for the Shares after what it deems to be adequate investigation of
the business, finances, and prospects of the Company by the Subscriber and the
Subscriber's advisors, if any.

<PAGE>

         (e) No Governmental Recommendation or Approval. The Subscriber
understands that no federal or state agency has passed on or made any
recommendation or endorsement of the Shares.

         4. INVESTMENT REPRESENTATIONS.

         (a) Shares Not Registered; Indefinite Holding. The Subscriber has been
advised by the Company, and understands, that it must bear the economic risk of
an investment in the Shares for an indefinite period of time because the Shares
have not been registered under the Act and the Company is under no obligation to
register the Shares other than as set forth in the registration rights agreement
dated as of the date hereof, among the Company and the Subscriber, in the form
of Exhibit A-2 hereto (the "Registration Rights Agreement"). Therefore, the
Shares must be held by the undersigned unless they are subsequently registered
under the Act or an exemption from such registration is available for the
transfer of the Shares.

         Notwithstanding the foregoing, the Subscriber agrees (as provided in
paragraph 4(c) below), not to sell or otherwise transfer or dispose of any
Shares except as permitted by the Registration Rights Agreement.

         (b) Subscription for Own Account. The Subscriber represents that the
Shares are being acquired solely for its own account for investment and not with
a view toward, or for resale in connection with, any distribution (as that term
is used in the Act and the rules and regulations thereunder) of all or any
portion thereof.

         (c) No Disposition of Shares Without Securities Law Compliance. Except
as permitted by the Registration Rights Agreement, the Subscriber agrees not to
subdivide the Shares or to offer, sell or otherwise transfer or dispose of any
of the Shares in the absence of an effective registration statement under the
Act covering such disposition, or an opinion of counsel, satisfactory to the
Company and its counsel, to the effect that registration under the Act is not
required for such transfer or disposition; provided, however, that the
Subscriber may transfer Registrable Shares to an Affiliate (as defined in the
Registration Rights Agreement) without the requirement that the Subscriber or
Affiliate deliver a legal opinion to the Company confirming that such transfer
may be made without registration under federal or state securities laws, unless
the Company reasonably believes that such transfer would violate federal or
state securities laws.

         (d) Stop-Transfer and Legends on Certificates. (i) The Subscriber
further understands that a stop-transfer order will be placed on the
stock-transfer books of the Company respecting the certificates evidencing the
Shares, and such certificates shall bear, until such time as the Shares shall
have been registered under the Act or have been transferred in accordance with
such an opinion of counsel, the following legends or ones substantially similar
thereto:

          THE SHARES REPRESENTED BY THIS CERTIFICATE HAVE NOT BEEN REGISTERED
          UNDER THE SECURITIES ACT OF 1933, AS AMENDED (THE "SECURITIES ACT"),
          AND MAY NOT BE OFFERED, SOLD, PLEDGED OR OTHERWISE TRANSFERRED, EXCEPT
          (1) ACCORDING TO AN OPINION OF COUNSEL SATISFACTORY TO EVENTURES

<PAGE>

          GROUP, INC., IN A TRANSACTION THAT IS EXEMPT FROM, OR NOT SUBJECT TO,
          THE REGISTRATION REQUIREMENTS OF THE SECURITIES ACT, OR (2) PURSUANT
          TO AN EFFECTIVE REGISTRATION STATEMENT UNDER THE SECURITIES ACT, IN
          EACH CASE IN ACCORDANCE WITH ANY APPLICABLE SECURITIES LAWS OF ANY
          STATE OF THE UNITED STATES. FURTHER, THE SHARES REPRESENTED BY THIS
          CERTIFICATE MAY ONLY BE RESOLD AS PROVIDED IN A REGISTRATION RIGHTS
          AGREEMENT BETWEEN EVENTURES GROUP, INC. AND THE ORIGINAL SUBSCRIBER OF
          THESE SHARES, A COPY OF WHICH IS AVAILABLE FOR INSPECTION AT THE
          OFFICES OF EVENTURES GROUP, INC.

as well as any legend that may be required under any applicable state law.

         (ii) The foregoing legend shall be removed from the certificates
representing any Shares, at the request of the holder thereof, at such time as
(A) they are sold pursuant to an effective registration statement, (B) they
become eligible for resale pursuant to Rule 144(k), or (C) an opinion of counsel
reasonably satisfactory to the Company is obtained to the effect that the
proposed transfer is exempt from the Act; provided that in the case of clauses
(B) and (C) the holder is permitted to transfer the Shares pursuant to Section 8
of the Registration Rights Agreement. The portion of the legend referring to the
Registration Rights Agreement shall be eliminated at such time as Section 8 of
that agreement ceases to be applicable.

         (e) "Private-Offering" Exemption, Reliance on Representations. The
Subscriber understands that the offer and sale of the Shares is being registered
under the Act in reliance on the so-called "private offering" exemption provided
by Section 4(2) of the Act and/or Regulation D promulgated pursuant to the Act
and that the Company is basing its reliance on that exemption in part on the
representations, warranties, statements, and agreements contained herein and in
those of other investors contained in similar subscription agreements.

         5. REPRESENTATIONS, WARRANTIES AND COVENANTS OF THE COMPANY.

         (a) Corporate Organization, Etc. The Company and each of AxisTel, a
wholly-owned subsidiary of the Company, e.Volve, a wholly-owned subsidiary of
the Company and Internet Global Services, Inc. ("IGS"), a wholly-owned
subsidiary of the Company (each of AxisTel, e.Volve and IGS, a "Material
Subsidiary," and collectively, the "Material Subsidiaries"), is a corporation
duly organized, validly existing and in good standing under the laws of its
jurisdiction of incorporation. The Company and each Material Subsidiary has full
corporate power and authority to carry on its business as it is now being
conducted and as presently proposed to be conducted and to own, operate and
lease its properties and assets.

         (b) Authorization, Etc. The Company has full corporate power and
authority to enter into this Agreement and the Registration Rights Agreement and
to carry out the transactions contemplated hereby and thereby. The Board of
Directors of the Company has duly authorized the execution, delivery and
performance of this Agreement and the Registration Rights Agreement and the
consummation of the transactions contemplated hereby and thereby,

<PAGE>

and no other corporate proceedings on the part of the Company are necessary to
authorize this Agreement and the Registration Rights Agreement and the
transactions contemplated hereby and thereby. Each of this Agreement and the
Registration Rights Agreement constitutes the legal, valid and binding
obligation of the Company enforceable against the Company in accordance with its
terms.

         (c) No Violation. The execution, delivery and performance by the
Company of this Agreement, the Registration Rights Agreement and all other
agreements contemplated hereby, and the fulfillment of and compliance with the
respective terms hereof and thereof by the Company, do not and will not (i)
require any authorization, consent, approval, exemption or other action by, or
notice to, or filing with any court or other governmental authority having
jurisdiction over the Company or its properties, (ii) result in a violation of,
conflict with, constitute a default under, or result in a breach of, the terms,
conditions or provisions of, the charter or bylaws of the Company, any
applicable law, regulation, order or any contract to which the Company, or its
properties or assets, are subject, including federal or state securities laws
(assuming the truth of the representations of the Subscriber herein), or (iii)
result in the creation of a lien or encumbrance against any of the property or
assets of the Company or any Material Subsidiary, except that the execution and
delivery of the Registration Rights Agreement requires the consent of certain
shareholders pursuant to the Registration Rights Agreement of the Company dated
as of September 22, 1999, a copy of which is attached as an exhibit to the Form
10, which consent has been received. The Company will comply in all material
respects with all applicable regulations and orders in connection with its
execution, delivery and performance of this Agreement and the transactions
contemplated hereby.

         (d) Compliance with Applicable Laws; No Material Breach. Neither the
Company nor any Material Subsidiary, are in violation or default of any
provision of their respective Certificates of Incorporation or Bylaws, both as
amended, and except for violations that individually or in the aggregate would
not have a material adverse effect on the Company's or any Material Subsidiary's
properties, assets, business, operations or financial condition taken as a whole
a ("Material Adverse Effect"), the Company and each Material Subsidiary is in
compliance with all applicable United States statutes, laws and regulations.
Except as disclosed in the Form 10, neither the Company nor any Material
Subsidiary has breached or defaulted under, nor does the Company have any
knowledge of any claim or threat that the Company or any Material Subsidiary has
breached or defaulted under, any term or condition of any agreement, contract,
lease, license, instrument or commitment to which the Company or any Material
Subsidiary, as the case may be, is a party or by which it or its properties or
assets are bound that individually or in the aggregate would have a Material
Adverse Effect.

         The Company believes that it and its Material Subsidiaries are in
compliance with all material applicable laws in jurisdictions other than the
United States in the operation of their businesses. However, the Company is not
an expert in the laws of such foreign jurisdictions and has not secured legal
opinions or other definitive evidence that its operations are compliant under
such foreign laws. Accordingly, no assurances can be given that the Company or
its Material Subsidiaries are in full compliance with all material aspects of
the laws of jurisdictions other than the United States.

<PAGE>

         (e) Capitalization. The authorized capital stock of the Company is set
forth on the capitalization table attached as Exhibit A-3 hereto. All of the
shares of capital stock have been duly authorized, and are validly issued, fully
paid and non-assessable. None of the issued and outstanding shares of capital
stock was issued in violation of any preemptive rights. Other than as set forth
on Exhibit A-3 hereto, there are no options, warrants, convertible or
exchangeable securities or other rights, agreements, arrangements or commitments
of any character relating to the capital stock of the Company or obligating the
Company to issue or sell any shares of capital stock of, or any other interest
in, the Company. Except as disclosed in the Form 10 and all other documents
filed with the SEC via EDGAR since the Form 10 (collectively, the "Subsequent
Securities Filings"), there are no outstanding contractual obligations of the
Company to repurchase, redeem or otherwise acquire any shares of capital stock
or to provide funds to, or make any investment (in the form of a loan, capital
contribution or otherwise) in, any person. Upon consummation of the transactions
contemplated by this Agreement, the Investors will own the Shares, in each case
free and clear of all liens and encumbrances, other than liens and encumbrances
created or suffered by an Investor. The Shares have been duly authorized. Upon
consummation of the transactions contemplated by this Agreement, the Shares will
have been validly issued, fully paid and non-assessable, and the issuance
thereof will not have been subject to any preemptive rights or made in violation
of any applicable law. All of the shares of capital stock of each Material
Subsidiary are duly authorized and validly issued, fully paid and
non-assessable, and have been approved by all requisite Board of Directors and
stockholder action. There are no voting trusts, stockholder agreements, proxies
or other agreements or understandings in effect with respect to the voting or
transfer of any of the capital stock. Except as provided under those certain
Registration Rights Agreements dated September 22, 1999, November 19, 1999,
December 31, 1999, March 10, 2000, April 4, 2000 and May 26, 2000, the Company
is not under any obligation to register under the Act any of its currently
outstanding securities or any securities issuable upon exercise or conversion of
its currently outstanding securities nor is the Company obligated to register or
qualify any such securities under any state securities or "blue sky" laws.

         (f) Ownership of Material Subsidiaries. As of the Closing Date, the
Company owns free and clear of any liens and encumbrances (i) 100% of the issued
and outstanding capital stock of AxisTel, (ii) 100% of the issued and
outstanding capital stock of e.Volve and (iii) 100% of the issued and
outstanding capital stock of IGS which are all the subsidiaries of the Company
material to its business, operations, condition (financial or otherwise) or
prospects.

         (g) Intellectual Property. To the best knowledge of the Company and
other than as disclosed in the Form 10, each of the Company and each Material
Subsidiary owns or possesses valid and binding licenses and other rights to use
all patents, trade secrets, trade names, trademarks, copyrights, inventions and
processes used in their respective businesses other than such patents, trade
secrets, trade names, trademarks, inventions and processes which the failure to
own or possess rights to use would not interfere in any material respect with
the conduct of the business of the Company and its Material Subsidiaries as
currently conducted or as proposed to be conducted, and, to the best knowledge
of the Company, neither the Company nor any Material Subsidiary has violated or
infringed, and neither has received any notice or claim of any such violation or
infringement of, any rights of others with respect thereto.

<PAGE>

         (h) Litigation. Other than as disclosed in the Form 10 and the
Subsequent Securities Filings, there is no action, suit, investigation
arbitration, mediation or any judicial or administrative proceeding pending
against, or to the knowledge of the Company, threatened against or affecting,
the Company or any Material Subsidiary before any court or arbitrator or any
governmental body, agency or official (i) which, individually or in the
aggregate, if determined or resolved adversely in accordance with the
plaintiff's demands, could be expected to have a Material Adverse Effect or (ii)
which in any manner challenges or seeks to prevent, enjoin, alter or materially
delay the transactions contemplated by this Agreement.

         (i) Form 10 and the Subsequent Securities Filings. The Form 10 and the
Subsequent Securities Filings comply as to form with the requirements set forth
in the rules relating to the Form 10 and the Subsequent Securities Filings,
respectively, promulgated under the Securities Exchange Act of 1934, as amended
(the "Exchange Act") by the SEC. Neither the Form 10 nor any of the Subsequent
Securities Filings contain any untrue statement of a material fact or omit to
state a material fact required to be stated therein or necessary to make the
statements therein, in light of the circumstances under which they were made,
not misleading.

         (j) Financial Statements. The audited financial statements of the
Company and its consolidated subsidiaries as at and for the fiscal year ended
June 30, 1999 and the unaudited financial statements of the Company and its
consolidated subsidiaries as at and for the fiscal period ended March 31, 2000
were prepared in accordance with generally accepted accounting practices
consistently applied ("GAAP") (except, with respect to the unaudited financial
statements, for the omission of footnotes, and subject to normal year-end
adjustments) and present fairly the financial position, operating results,
changes in cash flows and changes in stockholders' equity of the Company and its
consolidated subsidiaries as of the dates and for the periods indicated therein.
The consolidated balance sheet of the company as of March 31, 2000 is referred
to herein as the "Balance Sheet".

         (k) Absence of Certain Changes. Since December 31, 1999, except as
disclosed in the Form 10 or the Subsequent Securities Filings, each of the
Company, AxisTel, e.Volve and, to the knowledge of the Company, IGS, has
conducted its respective business only in, and has not engaged in any material
transaction other than according to, the ordinary and usual course of such
businesses and there has not been (i) any change in the condition (financial or
otherwise), properties, business, operations or results of operations of the
Company, AxisTel, e.Volve or, to the knowledge of the Company, IGS, taken as a
whole, or any development or combination of developments that, individually or
in the aggregate, has had or would have a Material Adverse Effect; (ii) any
declaration, setting aside or payment of any dividend, or other distribution in
cash, stock or property in respect of the capital stock of the Company; (iii)
any split in the Company's capital stock, combination, subdivision or
reclassification of any of the Company's capital stock or issuance or
authorization of any issuance of any other securities in respect of, in lieu of
or in substitution for shares of its capital stock (iv) any change by the
Company or any of its Material Subsidiaries in accounting principles, practices
or methods or (v) any increase in the compensation payable by the Company,
AxisTel, e.Volve or, to the knowledge of the Company, IGS, to officers or key
employees, or any amendment to any

<PAGE>

compensation or benefit plans of the Company, AxisTel, e.Volve or, to the
knowledge of the Company, IGS, except for increases or amendments in the
ordinary or usual course.

         (l) Title to Properties; Encumbrances. The Company has good and valid
title to all tangible property and assets set forth in the Balance Sheet, except
as indicated in the notes thereto and except for properties and assets reflected
in the Balance Sheet which have been sold or otherwise disposed of in the
ordinary course of business, in each case, free and clear of any and all liens
other than (i) liens reflected in the Balance Sheet, (ii) liens for taxes,
levies, fees, water and sewer charges and other governmental and similar charges
not yet due and payable or which, or the amount of which, are being contested in
accordance with applicable law and for which adequate allowance has been made on
the Balance Sheet, and (iii) other liens, imperfections in title, charges,
restrictions and other defects, irregularities and encumbrances which,
individually or in the aggregate, do not detract from the value, or interfere
with the present or proposed use, of the property subject thereto or affected
thereby in any material respect.

         (m) Taxes. Except as set forth on Schedule 1 attached hereto (the
"Schedule of Exceptions"), the Company and each of the Material Subsidiaries has
timely filed its federal and state tax returns when due and has timely paid all
taxes (whether or not shown as due on such tax returns).

         (n) Consideration. The Shares are being issued as consideration for the
purchase of the indefeasible right of use in bandwidth capacity of the Qwest's
fiber optic telecommunications network pursuant to the terms of the IRU
Agreement and the Amendment.

         (o) Investment Company Act. The Company represents and warrants that,
as of March 31, 2000, it is not an Investment Company (as defined in the
Investment Company Act of 1940, as amended).

         (p) Private Offering. No form of general solicitation or advertising
was used by the Company or its representatives in connection with the offer and
sale of the Shares. Subject to the accuracy of the Subscriber's representations
in Section 4, no registration of the Shares, pursuant to the provisions of the
Act or any state securities or "blue sky" laws, will be required by the offer,
sale or issuance of the Shares. The Company agrees that neither it, nor anyone
acting on its behalf, shall offer to sell the Shares or any other securities of
the Company so as to require the registration of the Shares pursuant to the
provisions of the Act or any state securities or "blue sky" laws, unless such
Shares or other securities are so registered.

         (q) Interested Transactions. Except as disclosed in the Form 10 and the
Subsequent Securities Filings, no officer, director or holder of five percent
(5%) or more of the diluted equity of the Company, or employee of the Company or
any of its subsidiaries, and no family member of any of the foregoing, is or has
any direct or indirect interest in (i) any customer, supplier or competitor of
the Company, (ii) any person from whom or to whom the Company or any of its
subsidiaries leases any real or personal property, or (iii) any other person
with whom the Company is doing business, whether directly or indirectly
(including, without limitation, a debtor or creditor), whether in existence as
of the date hereof or proposed, other than

<PAGE>

the ownership of stock of publicly traded corporations that does not exceed five
percent (5%) of the issued and outstanding stock of any such corporation.

         (r) Broker's or Finder's Fee. Neither the Company nor any of its
subsidiaries has paid, become obligated to pay or will become obligated to pay
any fee or commission to any broker, finder or intermediary in connection with
this Agreement. The Subscriber will have no obligation nor liability with
respect to such fees.

         (s) Liabilities. Neither the Company nor any of its Material
Subsidiaries has any outstanding claims, liabilities or indebtedness, contingent
or otherwise, except as reflected in the Balance Sheet or referred to in the
notes thereto, other than liabilities to trade creditors incurred subsequent to
March 31, 2000 in the ordinary course of business not involving borrowings by
the Company or any of its Material Subsidiaries. Neither the Company nor any of
its Material Subsidiaries is in default in respect of the terms or conditions of
any material indebtedness.

         6. INDEMNIFICATION.

         The Subscriber agrees to indemnify and hold the Company, its officers,
directors, and stockholders or any other person who may be deemed to "control"
the Company harmless from any loss, liability, claim, damage, or expense arising
out of the inaccuracy of any of the above representations, warranties, or
statements of the Subscriber or the breach of any of the agreements of the
Subscriber contained herein, and this indemnification shall survive the Closing
Date.

         The Company agrees to indemnify and hold the Subscriber, its officers,
directors, stockholders and partners and any other person who may be deemed to
"control" the Subscriber harmless from any loss, liability, claim, damage, or
expense arising out of the inaccuracy of any of the above representations,
warranties, or statements of the Company or the breach of any of the agreements
of the Company contained herein, and this indemnification shall survive the
Closing Date.

         7. BLUE SKY NOTICES.

         The Subscriber understands that the Shares may be subject to notice
requirements and other restrictions under state "blue sky" laws.

         8. CONDITIONS TO THE COMPANY'S OBLIGATION TO TRANSFER.

         The Subscriber understands that the Company's obligation to transfer
the Shares is conditioned upon:

         (a) the receipt and acceptance by the Company of an executed copy of
this Agreement;

<PAGE>

         (b) each of the representations made by, and all of the information
provided by, the Subscriber being true and correct as though made or provided on
the Closing Date;

         (c) the receipt and acceptance by the Company of an executed copy of
the Registration Rights Agreement;

         (d) the receipt from the Subscriber of a letter in the form attached as
Exhibit A-1 whereby the Subscriber represents and warrants that it is an
"accredited investor", as defined in Rule 501 under the Act; and

         (e) there being no breach of the duties and obligations of Qwest under
the terms of the IRU Agreement and the Amendment.

         9. CONDITIONS TO SUBSCRIBER'S OBLIGATION TO SUBSCRIBE.

         The Subscriber's obligation to subscribe for the Shares in accordance
with the terms of this Agreement is conditioned upon:

         (a) the receipt by the Subscriber of an executed copy of this
Agreement;

         (b) (i) each of the representations made by, and all of the information
provided by, the Company being true and correct as though made or provided on
the Closing Date and (ii) the receipt by the Subscriber from an officer of the
Company of a certificate to such effect.

         (c) the receipt and acceptance by the Subscriber of an executed copy of
the Registration Rights Agreement;

         (d) all authorizations, approvals or permits, if any, of any
governmental authority or regulatory body of the United States or of any state
that are required in connection with the lawful issuance and sale of the Shares
pursuant to this Agreement shall be obtained and in effect as of the Closing
Date; and

         (e) the receipt by the Subscriber from the Secretary of the Company of
a certificate certifying the names of the officers of the company authorized to
sign this Agreement, the certificates for the Shares and the other documents,
instruments or certificates to be delivered pursuant to this Agreement by the
Company or any of its officers, together with the true signatures of such
officers, and attaching (A) copies of the charter and bylaws of the Company
certified as true and correct on Closing Date, (B) a copy of the resolutions of
the Board of Directors authorizing the issuance of the Shares to the Subscriber
and the other transactions contemplated hereby and (C) a good standing
certificate issued by the Secretary of State of Delaware with respect to the
Company; and

         (f) there being no breach of the duties and obligations of e.Volve and
AxisTel under the terms of the IRU Agreement and the Amendment.

<PAGE>

         10. STANDSTILL RESTRICTIONS

         Prior to the second annual anniversary of the date hereof, without the
prior written consent of the Company, the Subscriber shall not:

         (a) acquire, offer to acquire, or agree to acquire, directly or
indirectly, by purchase or otherwise, any voting securities or direct or
indirect rights to acquire any voting securities of the Company or any
subsidiary thereof, or of any successor to or person in control of the Company,
or any assets of the Company or subsidiary or division thereof or of any such
successor or controlling person, except shares of common stock in an aggregate
amount up to five percent (5%) of the total outstanding shares of common stock;

         (b) make, or in any way participate, directly or indirectly, in any
"solicitation" of "proxies" to vote (as such terms are used in the rules of the
SEC), or seek to advise or influence any person or entity with respect to the
voting of any voting securities of the Company;

         (c) make any public announcement with respect to, or submit a proposal
for, or offer of (with or without conditions) any extraordinary transaction
involving the Company or any of its securities or assets;

         (d) form, join or in any way participate in a "group" as defined in
Section 13(d)(3) of the Exchange Act, as amended, in connection with any of the
foregoing;

         (e) seek to propose to influence the Company's management or policies;

         (f) request the Company directly or indirectly, to amend or waive any
provision of this paragraph; or

         (g) make any public disclosure with respect to the foregoing.

         The Subscriber will promptly advise the Company of any inquiry or
proposal made with respect to any of the foregoing.

         11. AMENDMENT

         No amendment, modification, termination or cancellation of this
Agreement shall be effective unless made in writing signed by the Company and
the Subscriber.

         12. SEVERABILITY.

         The invalidity and unenforceability of any provision of this Agreement
shall not affect the validity or enforceability of any other provision of this
Agreement.

         13. SURVIVAL OF REPRESENTATIONS AND WARRANTIES. The Company and the
Subscriber acknowledge that the representations and warranties made by the
Company and the Subscriber shall survive the Closing Date and consummation of
the transactions contemplated herein.

<PAGE>

         14. GOVERNING LAW.

         This Agreement shall be governed by, and interpreted in accordance
with, the laws of the State of Delaware without regard to the principles or
policies thereof with respect to conflicts of law.

         15. NOTICES.

         All notices, requests, consents, and other communications under this
Agreement shall be in writing and shall be deemed effectively given when
delivered personally or by facsimile transmission or by overnight delivery
service or 72 hours after being mailed by first class certified or registered
mail, return receipt requested, postage prepaid:

                  (i) If to the Company, eVentures Group, Inc., 300 Crescent
         Court, Suite 800, Dallas, Texas 75201, Attention: Stuart Chasanoff
         (Fax: 214-777-4107), or at such other address or addresses as may have
         been furnished in writing by the Company to the Subscriber with a copy
         to (which shall not constitute notice): White & Case LLP, 1155 Avenue
         of the Americas, New York, NY 10036, Attention: Kevin Keogh, Esq. (Fax:
         212-354-8113).

                  (ii) If to the Subscriber, U.S. Telesource, Inc., 555
         Seventeenth Street, Denver, Colorado 80202, Attention: Executive Vice
         President & General Counsel (Fax: 303-992-1724), or at such other
         address or addresses as may have been furnished in writing by the
         Stockholder to the Company.

         16. COUNTERPARTS.

         This Agreement may be executed in any number of counterparts and by the
different parties hereto on separate counterparts, each of which when so
executed and delivered shall be an original, but all of which shall together
constitute one and the same instrument.

         17. ENTIRE AGREEMENT.

         This Agreement, the IRU Agreement, the Amendment, the Payment Letter
and the Registration Rights Agreement constitute the entire agreement of the
parties with respect to the matters contained herein and may only be amended by
a written instrument signed by all parties hereto and thereto.

                  [Remainder of page intentionally left blank.]

<PAGE>

         IN WITNESS WHEREOF this Common Stock Subscription Agreement was duly
executed by the parties hereto as of the date first written above.

                                           eVENTURES GROUP, INC.

                                           By: /s/ BARRETT N. WISSMAN
                                               ----------------------------
                                               Name:  Barrett N. Wissman
                                               Title: President

                                           U.S. TELESOURCE, INC.

                                           By: /s/ MARC B. WEISBERG
                                               ----------------------------
                                               Name:  Marc B. Weisberg
                                               Title: President

                     [SUBSCRIPTION AGREEMENT SIGNATURE PAGE]

<PAGE>

                                                                      SCHEDULE 1

                             Schedule of Exceptions
                                       To
                       Common Stock Subscription Agreement

         The following constitutes an itemization by eVentures Group, Inc., a
Delaware corporation (the "Company"), of those matters that constitute
exceptions to the items set forth in Section 5(m) of the Common Stock
Subscription Agreement, dated as of June 19, 2000 (the "Agreement").

SECTION 5(m)

1. The Company has not filed any Federal or state tax returns that may have been
due for its fiscal year ended June 30, 1999.

2. e.Volve Technology Group, Inc. has not filed any Federal or state tax returns
that may have been due for its fiscal year ended May 31, 1999.

<PAGE>

                                                                  June 16th 2000

eVentures Group. Inc.
300 Crescent Court, Suite 800
Dallas, TX 75201

Ladies and Gentlemen:

         In connection with the subscription of shares of common stock of
eVentures Group, Inc. (the "Company") pursuant to the Common Stock Subscription
Agreement, dated as the hereof, between the Company and the undersigned (the
"Subscription Agreement"), the undersigned represents and warrants that it is an
"accredited investor", as defined in Rule 501 under the Securities Act of 1933
(the "Act"), inasmuch as it is:

         (Please check all applicable descriptions)

         [ ]      A bank or savings and loan association, as defined in the Act,
                  whether acting in its individual or fiduciary capacity.

         [ ]      A broker or dealer registered pursuant to the Securities
                  Exchange Act of 1934.

         [ ]      An insurance company, as defined in the Act.

         [ ]      An investment company registered under the Investment Company
                  Act of 1940.

         [ ]      A business development company, as defined in the Investment
                  Company Act of 1940.

         [ ]      A Small Business Investment Company licensed by the U.S. Small
                  Business Administration.

         [ ]      A plan established and maintained by a state, its political
                  subdivisions, or an agency at instrumentality of a state or
                  its political subdivisions for the benefit of its employees,
                  if such plan has total assets in excess of $5,000,000.

         [ ]      An employee benefit plan within the meaning of Title I of the
                  Employment Retirement Income Security Act of 1974 (ERISA), if
                  the investment decision with respect to this investment is
                  made by a plan fiduciary, as defined in ERISA, which is either
                  a bank, savings and loan association, insurance company, or
                  registered investment advisor, or if the employee benefit plan

<PAGE>
                  has total assets in excess of $5,000,000, or, if a self-
                  directed plan, with investment decisions made solely by
                  persons that are accredited investors.

         [ ]      A private business development company, as defined in the
                  Investment Advisors Act of 1940.

         [X]      A tax-exempt organization defined in Section 501(c)(3) of the
                  Internal Revenue Code, or a corporation, Massachusetts or
                  similar business trust, or partnership, not formed for the
                  specific purpose of acquiring the shares offered under the
                  Subscription Agreement, with total assets in excess of
                  $5,000,000.

         [ ]      A director or executive officer of the Company.

         [ ]      A natural person whose individual net worth (or joint net
                  worth with that person's spouse) exceeds $1,000,000.

         [ ]      A natural person who had an individual income in excess of
                  $200,000 in each of the two most recent years or joint income
                  with that person's spouse in excess of $300,000 in each of
                  those years and who reasonably expects an income in excess of
                  $200,000 in the current year.

         [ ]      A trust, with total assets in excess of $5,000,000, not
                  formed for the specific purpose of acquiring the shares
                  offered under the Subscription Agreement, whose purchase is
                  directed by a sophisticated person as described in Rule
                  506(b)(2)(ii) under the Act.

         [ ]      An entity all the equity owners of which way respond
                  affirmatively to any of the preceding paragraphs.

The undersigned represents that the information contained herein is complete and
accurate and may be relied upon by the Company and agrees to notify the Company
if the undersigned no longer qualifies for any description checked above.

                                        By: /s/ MARC B. WEISBERG
                                            --------------------------
                                            Name:  Marc B. Weisberg
                                            Title: President -
                                                   US Telesource

<PAGE>

                                                                 June 16th, 2000

eVentures Group, Inc.
300 Crescent Court, Suite 800
Dallas, TX 75201

Ladies and Gentlemen:

         In connection with the subscription of shares of common stock of
eVentures Group, Inc. (the "Company") pursuant to the Common Stock Subscription
Agreement, dated as the date hereof, between the Company and the undersigned
(the "Subscription Agreement"), the undersigned represents and warrants that it
is an "accredited investor", as defined in Rule 501 under the Securities Act of
1933 (the "Act")), inasmuch as it is:

         (Please check all applicable descriptions)

         [ ]      A bank or savings and loan association, as defined in the Act,
                  whether acting in its individual or fiduciary capacity.

         [ ]      A broker or dealer registered pursuant to the Securities
                  Exchange Act of 1934.

         [ ]      An insurance company, as defined in the Act.

         [ ]      An investment company registered under the Investment Company
                  Act of 1940.

         [ ]      A business development company, as defined in the Investment
                  Company Act of 1940.

         [ ]      A Small Business Investment Company licensed by the U.S. Small
                  Business Administration.

         [ ]      A plan established and maintained by a state, its political
                  subdivisions, or an agency or instrumentality of a state or
                  its political subdivisions for the benefit of its employees,
                  if such plan has total assets in excess of $5,000,000.

         [ ]      An employee benefit plan within the meaning of Title I of the
                  Employment Retirement Income Security Act of 1974 (ERISA), if
                  the investment decision with respect to this investment is
                  made by a plan fiduciary, as defined in ERISA, which is either
                  a bank, savings and loan association, insurance company, or
                  registered investment advisor, or if the employee benefit plan
                  has total assets in excess of $5,000,000, or, if a self-

<PAGE>

                  directed plan, with investment decisions made solely by
                  persons that are accredited investors.

         [ ]      A private business development company, as defined in the
                  Investment Advisors Act of 1940.

         [ ]      A tax-exempt organization defined in Section 501(c)(3) of the
                  Internal Revenue Code, or a corporation, Massachusetts or
                  similar business trust, or partnership, not formed for the
                  specific purpose of acquiring the shares offered under the
                  Subscription Agreement, with total assets in excess of
                  $5,000,000.

         [ ]      A director or executive officer of the Company.

         [ ]      A natural person whose individual net worth (or joint net
                  worth with that person's spouse) exceeds $1,000,000.

         [ ]      A natural person who had an individual income in excess of
                  $200,000 in each of the two most recent years or joint income
                  with that person's spouse in excess of $300,000 in each of
                  those years and who reasonably expects an income in excess of
                  $200,000 in the current year.

         [ ]      A trust, with total assets in excess of $5,000,000, not formed
                  for the specific purpose of acquiring the shares offered under
                  the Subscription Agreement, whose purchase is directed by a
                  sophisticated person as described in Rule 506(b)(2)(ii) under
                  the Act.

         [ ]      An entity all the equity owners of which may respond
                  affirmatively to any of the preceding paragraphs.

The undersigned represents that the information contained herein is complete and
accurate and may be relied upon by the Company and agrees to notify the Company
if the undersigned no longer qualifies for any description checked above.

                                                  By:
                                                     ---------------------------
                                                     Name:
                                                     Title:

<PAGE>

                                                                     EXHIBIT A-3

                              Capitalization Table

Preferred Stock, par value $.000002 per share
       Series A Convertible Preferred Stock
                  Authorized: 1,200
                  Issued and Outstanding: 0

       Series B Convertible Preferred Stock
                  Authorized: 25,000
                  Issued and Outstanding: 4,500

       Series C Convertible Preferred Stock
                  Authorized: 30,000
                  Issued and Outstanding: 15,570

Common Stock, par value $.00002 per share
    Authorized: 75,000,000
    Issued and Outstanding: 51,472,343
    Held in Treasury: 13,136,999

Stock Options: 13,802,237

Common Stock Purchase Warrants: 141,207<PAGE>
                                                                     EXHIBIT 4.1

================================================================================

                          PASS THROUGH TRUST AGREEMENT

                       TRINITY INDUSTRIES LEASING COMPANY,
                                     Company

                            TRINITY INDUSTRIES, INC.,
                                    Guarantor

                                       And

                            WILMINGTON TRUST COMPANY,
                                     Trustee

                          Dated as of February 15, 2002

                                  $170,000,000

                       Trinity Industries Leasing Company
                            2002-1 Pass Through Trust
                        7.755% Pass Through Certificates,
                                  Series 2002-1

================================================================================

<PAGE>

                                TABLE OF CONTENTS
<Table>
<Caption>
                                                                                                                 Page
                                                                                                                 ----

                                                      ARTICLE I.
                                                      DEFINITIONS

<S>               <C>                                                                                            <C>
Section 1.01.     Definitions.....................................................................................1
Section 1.02.     Compliance Certificates and Opinions............................................................8
Section 1.03.     Form of Documents Delivered to Trustee..........................................................8
Section 1.04.     Acts of Holders.................................................................................9

                                                      ARTICLE II.
                                            ACQUISITION OF EQUIPMENT NOTES;
                                           ORIGINAL ISSUANCE OF CERTIFICATES

Section 2.01.     Issuance of Certificates; Acquisition of Equipment Notes.......................................10
Section 2.02.     Acceptance by Trustee..........................................................................10
Section 2.03.     Limitation of Powers...........................................................................10

                                                     ARTICLE III.
                                                   THE CERTIFICATES

Section 3.01.     Form of Certificates...........................................................................11
Section 3.02.     Restrictive Legends............................................................................12
Section 3.03.     Execution, Authentication and Denomination of Certificates.....................................13
Section 3.04.     Temporary Certificates.........................................................................13
Section 3.05.     Registration of Transfer and Exchange of Certificates..........................................14
Section 3.06.     Book-Entry Provisions for Global Certificates..................................................15
Section 3.07.     Special Transfer Provisions....................................................................16
Section 3.08.     Mutilated, Destroyed, Lost or Stolen Certificates..............................................18
Section 3.09.     Persons Deemed Owners..........................................................................18
Section 3.10.     Cancellation...................................................................................18
Section 3.11.     Limitation of Liability for Payments...........................................................19

                                                      ARTICLE IV.
                                    DISTRIBUTIONS; STATEMENTS TO CERTIFICATEHOLDERS

Section 4.01.     Certificate Account and Special Payments Account...............................................19
Section 4.02.     Distributions from Certificate Account and Special Payments Account............................19
Section 4.03.     Statements to Certificateholders...............................................................20
Section 4.04.     Investment of Special Payment Moneys...........................................................21

                                                      ARTICLE V.
                                                        DEFAULT

Section 5.01.     Events of Default..............................................................................22
Section 5.02.     Incidents of Sale of Equipment Notes...........................................................22
</Table>

                                       -i-

<PAGE>

<Table>
<S>               <C>                                                                                            <C>
Section 5.03.     Judicial Proceedings Instituted by Trustee.....................................................23
Section 5.04.     Control by Certificateholders..................................................................24
Section 5.05.     Waiver of Past Defaults........................................................................24
Section 5.06.     Undertaking to Pay Court Costs.................................................................25
Section 5.07.     Right of Certificateholders to Receive Payments Not to Be Impaired.............................25
Section 5.08.     Certificateholders May Not Bring Suit Except Under Certain Conditions..........................25
Section 5.09.     Remedies Cumulative............................................................................26

                                                      ARTICLE VI.
                                                      THE TRUSTEE

Section 6.01.     Certain Duties and Responsibilities............................................................26
Section 6.02.     Notice of Defaults.............................................................................27
Section 6.03.     Certain Rights of Trustee......................................................................28
Section 6.04.     Not Responsible for Recitals or Issuance of Certificates.......................................29
Section 6.05.     May Hold Certificates..........................................................................29
Section 6.06.     Money Held in Trust............................................................................29
Section 6.07.     Compensation and Reimbursement.................................................................29
Section 6.08.     Corporate Trustee Required; Eligibility........................................................30
Section 6.09.     Resignation and Removal; Appointment of Successor..............................................31
Section 6.10.     Acceptance of Appointment by Successor.........................................................32
Section 6.11.     Merger, Conversion, Consolidation or Succession to Business....................................32
Section 6.12.     Maintenance of Agencies........................................................................33
Section 6.13.     Money for Certificate Payments to Be Held in Trust.............................................34
Section 6.14.     Registration of Equipment Notes in Trustee's Name..............................................34
Section 6.15.     Representations and Warranties of Trustee......................................................35
Section 6.16.     Withholding Taxes; Information Reporting; Tax Returns..........................................35
Section 6.17.     Trustee's Liens................................................................................36

                                                     ARTICLE VII.
                                                      THE COMPANY

Section 7.01.     Maintenance of Corporate Existence.............................................................36
Section 7.02.     Consolidation, Merger, Etc.....................................................................36

                                                     ARTICLE VIII.
                                   CERTIFICATEHOLDERS' LISTS AND REPORTS BY TRUSTEE

Section 8.01.     The Company to Furnish Trustee with Names and Addresses of Certificateholders..................37
Section 8.02.     Preservation of Information; Communications to Certificateholders..............................37
Section 8.03.     Reports by the Company.........................................................................38

                                                      ARTICLE IX.
                                             SUPPLEMENTAL TRUST AGREEMENTS

Section 9.01.     Supplemental Trust Agreements Without Consent of Certificateholders............................39
Section 9.02.     Supplemental Trust Agreements with Consent of Certificateholders...............................39
</Table>

                                      -ii-
<PAGE>

<Table>
<S>               <C>                                                                                            <C>

Section 9.03.     Documents Affecting Immunity or Indemnity......................................................40
Section 9.04.     Execution of Supplemental Trust Agreements.....................................................40
Section 9.05.     Effect of Supplemental Trust Agreements........................................................40
Section 9.06.     Reference in Certificates to Supplemental Trust Agreements.....................................41

                                                      ARTICLE X.
                                          AMENDMENTS TO TRANSACTION DOCUMENTS

Section 10.01.    Amendments and Supplements to Transaction Documents............................................41

                                                      ARTICLE XI.
                                                 TERMINATION OF TRUST

Section 11.01.    Termination of the Trust.......................................................................41

                                                     ARTICLE XII.
                                               MISCELLANEOUS PROVISIONS

Section 12.01.    Limitation on Rights of Certificateholders.....................................................42
Section 12.02.    Certificates Nonassessable and Fully Paid......................................................42
Section 12.03.    Notices........................................................................................43
Section 12.04.    Governing Law..................................................................................43
Section 12.05.    Severability of Provisions.....................................................................43
Section 12.06.    Effect of Headings and Table of Contents.......................................................43
Section 12.07.    Successors and Assigns.........................................................................43
Section 12.08.    Benefits of Trust Agreement....................................................................44
Section 12.09.    Legal Holidays.................................................................................44
Section 12.10.    Counterpart....................................................................................44
Section 12.11.    Tax Treatment..................................................................................44
Section 12.12.    No Partnership.................................................................................44
</Table>

Exhibit A         Form of Certificate
Exhibit B         Form of Letter of Representations
Exhibit C         Form of Certificate for Unlegended Certificates
Exhibit D         Form of Certificate to Be Delivered in Connection with
                  Transfers Pursuant to Regulation S
Exhibit E         Form of Transfer Notice

                                      -iii-
<PAGE>

This PASS THROUGH TRUST AGREEMENT (this "Trust Agreement"), dated as of February
15, 2002, among TRINITY INDUSTRIES LEASING COMPANY, a Delaware corporation (the
"Company"), TRINITY INDUSTRIES, INC., a Delaware corporation (the "Guarantor"),
and WILMINGTON TRUST COMPANY, a Delaware banking corporation, not in its
individual capacity but solely as trustee hereunder (unless otherwise specified)
(the "Trustee").

                                  WITNESSETH:

                  WHEREAS, the Company and the Trustee hereby declare the
creation of the Trust for the benefit of the Holders of the Certificates to be
issued hereunder, and the initial Holders of the Certificates, as the grantors
of the Trust, by their respective acceptances of the Certificates, hereby join
in the creation of the Trust with the Trustee;

                  WHEREAS, all Certificates will evidence fractional undivided
interests in the Trust; and

                  WHEREAS, the Trustee on behalf of the Trust shall purchase
three issues of Equipment Notes issued by the Company pursuant to three separate
Indentures, having the identical interest rate as, and final maturity dates not
later than the final expected Regular Distribution Date of, the Certificates and
shall hold such Equipment Notes in trust for the benefit of the
Certificateholders.

                  NOW, THEREFORE, in consideration of the mutual agreements
herein contained, and of other good and valuable consideration the receipt and
adequacy of which are hereby acknowledged, the parties hereto agree as follows:

                                   ARTICLE I.

                                   DEFINITIONS

                  Section 1.01. Definitions. For all purposes of this Trust
Agreement, except as otherwise expressly provided or unless the context
otherwise requires:

                  (1) the terms used herein that are defined in this Article
         have the meanings assigned to them in this Article, and include the
         plural as well as the singular;

                  (2) all references in this Trust Agreement to designated
         "Articles", "Sections" and other subdivisions are to the designated
         Articles, Sections and other subdivisions of this Trust Agreement; and

                  (3) the words "herein", "hereof" and "hereunder" and other
         words of similar import refer to this Trust Agreement as a whole and
         not to any particular Article, Section or other subdivision.

                  "Act" when used with respect to any Holder, has the meaning
specified in Section 1.04.

                                      -1-
<PAGE>

                  "Affiliate" of any specified Person, means any other Person
directly or indirectly controlling or controlled by or under direct or indirect
common control with such specified Person. For the purposes of this definition,
"control" when used with respect to any specified Person means the power to
direct the management and policies of such Person, directly or indirectly,
whether through the ownership of voting securities, by contract or otherwise;
and the terms "controlling" and "controlled" have meanings correlative to the
foregoing.

                  "Authorized Agent" means any Paying Agent or Registrar.

                  "Book-Entry Certificates" means a beneficial interest in the
Certificates, ownership and transfers of which shall be made through book
entries by a Clearing Agency.

                  "Business Day" means any day other than a Saturday, a Sunday
or a day on which banking institutions in New York, New York, or the city in
which the Trustee or the Indenture Trustee maintains its Corporate Trust Office
are authorized or obligated by law, executive order, or governmental decree to
be closed.

                  "Certificate" means any one of the certificates executed and
authenticated by the Trustee, substantially in the form of Exhibit A hereto.

                  "Certificate Account" means the account or accounts created
and maintained pursuant to Section 4.01(a).

                  "Certificate Owner" means, when used in Section 3.09, the
Person for whom a Clearing Agency Participant acts.

                  "Certificated Certificates" has the meaning specified in
Section 3.01(d).

                  "Certificateholder or Holder" means the Person in whose name a
Certificate is registered in the Register, except when used in connection with a
Book-Entry Certificate, where such term shall mean the Person who holds an
interest in such Book-Entry Certificate through a Clearing Agency pursuant to
Section 3.06.

                  "Clearing Agency" means an organization registered as a
"clearing agency" pursuant to Section 17A of the Securities Exchange Act of
1934, as amended.

                  "Clearing Agency Participant" means a broker, dealer, bank,
other financial institution or other Person for whom from time to time a
Clearing Agency effects, directly or indirectly, book entry transfers and
pledges of securities deposited with the Clearing Agency.

                  "Clearstream" means Clearstream Banking, societe anonyme.

                  "Closing Date" means February 15, 2002.

                  "Code" means the Internal Revenue Code of 1986, as amended.

                                      -2-
<PAGE>

                  "Commission" means the Securities and Exchange Commission, as
from time to time constituted, created under the Securities Exchange Act of
1934, and any successor agency.

                  "Company" means Trinity Industries Leasing Company, a Delaware
corporation, its successors in interest and permitted assigns.

                  "Consideration" has the meaning specified in Section 2.01(a).

                  "Corporate Trust Office" with respect to the Trustee and the
Indenture Trustee, means the Corporate Trust Administration department of such
trustee in the city at which at any particular time its corporate trust business
shall be principally administered.

                  "Depository" means The Depository Trust Company, and any
successor entity to the Depository as depositary for the Certificates.

                  "Direction" has the meaning specified in Section 1.04(c).

                  "Distribution Date" means any Regular Distribution Date or
Special Distribution Date.

                  "Equipment Note" means any of the equipment notes issued under
an Indenture, including without limitation any equipment note issued under such
Indenture in replacement or substitution therefor, held by the Trustee.

                  "ERISA" means the Employee Retirement Income Security Act of
1974, as amended from time to time, or any successor federal statute.

                  "Euroclear" means Euroclear Bank S.A./N.V.

                  "Event of Default" means an event described in Section 5.01.

                  "Fractional Undivided Interest" means the fractional undivided
interest in the Trust that is evidenced by a Certificate.

                  "Global Certificates" has the meaning specified in Section
3.01(d).

                  "Guarantor" means Trinity Industries, Inc., a Delaware
corporation, its successors in interest and permitted assigns.

                  "Holder" has the meaning specified in the definition of
"Certificateholder or Holder".

                  "Indenture" means any of the [A] Trust Indenture and Security
Agreement, [B] Trust Indenture and Security Agreement or [C] Trust Indenture and
Security Agreement, each dated as of the date hereof among the Company, the
Guarantor and The Bank of New York, as trustee, providing for the issuance of a
series of Equipment Notes, as each such Indenture may from time to time be
amended or supplemented.

                                      -3-
<PAGE>

                  "Indenture Default" with respect to any Indenture, means any
Indenture Event of Default as such term is defined in such Indenture.

                  "Indenture Trustee" means The Bank of New York, as indenture
trustee under each of the Indentures; and any successor to such Indenture
Trustee as such trustee.

                  "Items of Equipment" with respect to any Equipment Note, has
the meaning ascribed thereto in the Indenture pursuant to which such Equipment
Note was issued.

                  "Letter of Representations" means the agreement among the
Company, the Trustee and the Depository, substantially in the form attached
hereto as Exhibit B.

                  "Non-U.S. Person" means a Person that is not a U.S. person, as
defined in Regulation S.

                  "Officer's Certificate" means, with respect to the Company, a
certificate signed by the Chairman, the Vice Chairman, the President, any Vice
President, any Assistant Vice President, the Treasurer or the Secretary, and
means, with respect to the Indenture Trustee, a certificate signed by a
Responsible Officer of the Indenture Trustee and delivered to the Trustee.

                  "Opinion of Counsel" means a written opinion of legal counsel,
who may be (a) an attorney employed by the Company or the Guarantor or (b) such
other counsel designated by the Company or the Indenture Trustee, whether or not
such counsel is an employee of any of them and who shall be reasonably
acceptable to the Trustee.

                  "Outstanding" when used with respect to Certificates, means,
as of any date of determination, all Certificates theretofore authenticated and
delivered under this Trust Agreement, except:

                  (i) Certificates theretofore cancelled by the Registrar or
         delivered to the Trustee or the Registrar for cancellation;

                  (ii) Certificates for which amounts in the aggregate original
         principal amount of such Certificates have been theretofore deposited
         with the Trustee or any Paying Agent in trust for the Holders of such
         Certificates as provided in Section 4.01 pending distribution of such
         money to the Certificateholders pursuant to the final distribution
         payment to be made pursuant to Section 11.01 hereof; and

                  (iii) Certificates in exchange for or in lieu of which other
         Certificates have been authenticated and delivered pursuant to this
         Trust Agreement.

                  "Paying Agent" means the paying agent maintained and appointed
pursuant to Section 6.12(b).

                  "Permanent Regulation S Global" has the meaning specified in
Section 3.01(c).

                                      -4-
<PAGE>

                  "Permitted Investments" means obligations of the United States
of America for the payment of which the full faith and credit of the United
States of America is pledged, maturing in not more than sixty (60) days or such
lesser time as is necessary for payment of any Special Payments on a Special
Distribution Date.

                  "Person" means any person, including any individual,
corporation, partnership, joint venture, association, joint stock company,
trust, unincorporated organization, or government or any agency or political
subdivision thereof.

                  "Pool Balance" means, with respect to the Certificates as of
any date, , the aggregate unpaid principal amount of the Equipment Notes held in
the Pass Through Trust on that date plus any amounts in respect of principal of
the Equipment Notes held by the Pass Through Trustee and not yet distributed.
The Pool Balance as of any Regular Distribution Date or Special Distribution
Date shall be computed after giving effect to the payment of principal, if any,
on the Equipment Notes or other Trust Property held in the Trust and the
distribution thereof to be made on such date.

                  "Pool Factor" means, with respect to any Certificate as of any
date, the quotient (rounded to the seventh decimal place, with 0.00000005 being
rounded upward) computed by dividing (i) the Pool Balance as of such date by
(ii) the original aggregate face amount of the Certificates. The Pool Factor as
of any Regular Distribution Date or Special Distribution Date shall be computed
after giving effect to the payment of principal, if any, on the Equipment Notes
or other Trust Property held in the Trust and the distribution thereof to be
made on such date.

                  "Private Placement Legend" has the meaning specified in
Section 3.02(a).

                  "QIB" means a "qualified institutional buyer" as defined in
Rule 144A.

                  "Record Date" means (i) for Scheduled Payments to be
distributed on any Regular Distribution Date, other than the final distribution,
the 15th day (whether or not a Business Day) preceding such Regular Distribution
Date and (ii) for Special Payments to be distributed on any Special Distribution
Date, other than the final distribution, the 15th day (whether or not a Business
Day) preceding such Special Distribution Date.

                  "Register and Registrar" means the register maintained and the
registrar appointed pursuant to Section 3.05.

                  "Regular Distribution Date" means, with respect to
distributions of Scheduled Payments, each date designated as such in this Trust
Agreement, until payment of all the Scheduled Payments to be made under the
Equipment Notes held in the Trust have been made or until such Equipment Notes
have been redeemed or otherwise prepaid in full.

                  "Regulation S" means Regulation S under the Securities Act.

                  "Regulation S Certificated Certificates" has the meaning
specified in Section 3.01(d).

                                      -5-
<PAGE>

                  "Regulation S Global" has the meaning specified in Section
3.01(c).

                  "Request" means a written request by the Company setting forth
the subject matter of the request accompanied by an Officer's Certificate and an
Opinion of Counsel as provided in Section 1.02.

                  "Responsible Officer" when used with respect to the initial
Trustee or the initial Indenture Trustee, means any officer in the Corporate
Trust Office; when used with respect to any successor Trustee or successor
Indenture Trustee, means the chairman or vice-chairman of the board of directors
or trustees, the chairman or vice-chairman of the executive or standing
committee of the board of directors or trustees, the president, the chairman of
the committee on trust matters, any vice-president, any second vice-president,
the secretary, any assistant secretary, the treasurer, any assistant treasurer,
the cashier, any assistant cashier, any trust officer or assistant trust
officer, the comptroller and any assistant comptroller; and, when used with
respect to the Trustee or the Indenture Trustee, also means any other officer of
the Trustee or the Indenture Trustee customarily performing functions similar to
those performed by any of the above designated officers and also means, with
respect to a particular corporate trust matter, any other officer to whom such
matter is referred because of his knowledge of and familiarity with the
particular subject.

                  "Restricted Global" has the meaning specified in Section
3.01(b).

                  "Rule 144A" means Rule 144A under the Securities Act.

                  "Scheduled Payment", with respect to a Distribution Date,
means any payment (other than a Special Payment) of principal or interest on an
Equipment Note, due from the obligor thereon, which payment represents the
payment of principal at the stated maturity of such Equipment Note or any
regularly scheduled installment of principal at the due date thereof, or the
payment of regularly scheduled interest accrued on such Equipment Note.

                  "Securities Act" means the Securities Act of 1933, as amended
from time to time.

                  "Special Distribution Date" means (i) with respect to any
payment described in clause (i) of the definition of Special Payment, the day on
which such prepayment is scheduled to occur pursuant to the terms of the
applicable Indenture and (ii) with respect to any Special Payment relating to an
Equipment Note other than as described in clause (i) of the definition of
Special Payments, 20 days after the earliest day for which it is practicable for
the Trustee to give notice pursuant to Section 4.02(c).

                  "Special Payment", with respect to an Equipment Note, means
(i) any payment of principal, premium, if any, and interest on such Equipment
Note resulting from the redemption of such Equipment Note pursuant to Section
2.12 of the applicable Indenture, except a payment described in clause (iii)
below, (ii) any payment of principal and interest (including any interest
accruing upon default) on, or any other amount in respect of, such Equipment
Note upon an Indenture Event of Default in respect thereof or upon the exercise
of remedies under the Indenture relating to such Equipment Note, (iii) any
Scheduled Payment or any Special Payment referred to in clause (i) of this
definition which is not in fact paid within five days of the

                                      -6-
<PAGE>

Distribution Date applicable thereto or (iv) any proceeds from the sale of any
Equipment Note by the Trustee pursuant to Article V hereof and "Special
Payments" means all of such Special Payments.

                  "Special Payments Account" means the account or accounts
created and maintained pursuant to Section 4.01(b).

                  "Specified Investments" means (i) direct obligations of the
United States of America and agencies thereof for which the full faith and
credit of the United States is pledged, (ii) obligations fully guaranteed by the
United States of America, (iii) certificates of deposit issued by, or bankers'
acceptances of, or time deposits with, any bank, trust company or national
banking association incorporated or doing business under the laws of the United
States of America or one of the States thereof having combined capital and
surplus and retained earnings of at least five hundred million dollars
($500,000,000) (including the Indenture Trustee or the Trustee if such
conditions are met), (iv) commercial paper of companies (including the Company),
banks, trust companies or national banking associations incorporated or doing
business under the laws of the United States of America or one of the States
thereof and in each case having a rating assigned to such commercial paper by
Standard & Poor's Ratings Group, a division of the McGraw Hill Companies, Inc.,
or Moody's Investors Service, Inc. (or, if neither such organization shall rate
such commercial paper at any time, by any nationally recognized rating
organization in the United States of America) equal to the highest rating
assigned by such organization, and (v) repurchase agreements with any financial
institution having a combined capital and surplus of at least seven hundred and
fifty million dollars ($750,000,000) fully collateralized by obligations of the
type described in clauses (i) through (iv) above; provided that if all of the
above investments are unavailable, the entire amount to be invested may be used
to purchase Federal funds from an entity described in (iii) above; and provided,
further that no investment shall be eligible as a "Specified Investment" unless
it is held to maturity and the final maturity or date of return of such
investment is 91 days or less from the date of purchase thereof.

                  "Temporary Regulation S Global" has the meaning specified in
Section 3.01(c).

                  "Transaction Documents" means, with respect to any Equipment
Note, the related Indenture, as each such document may hereafter be amended or
supplemented in accordance with its respective terms.

                  "Trust" means the trust created by this Trust Agreement, the
estate of which consists of the Trust Property.

                  "Trust Property" means the Equipment Notes held as the
property of the Trust created hereby and all monies at any time paid thereon and
all monies due and to become due thereunder, funds from time to time deposited
in the Certificate Account and the Special Payments Account and any proceeds
from the sale by the Trustee pursuant to Article V hereof of any Equipment Note.

                                      -7-
<PAGE>

                  "Trustee" means the institution executing this Trust Agreement
not in its individual capacity but solely in its capacity as trustee hereunder
(unless otherwise specified), or its successor in interest, and any successor
trustee appointed as provided herein.

                  "U.S. Certificated Certificates" has the meaning specified in
Section 3.01(d).

                  "U.S. Person" has the meaning specified in Rule 902 under the
Securities Act.

                  Section 1.02. Compliance Certificates and Opinions. Upon any
application or request by the Company or the Indenture Trustee to the Trustee to
take any action under any provision of this Trust Agreement, the Company or the
Indenture Trustee, as the case may be, shall furnish to the Trustee an Officer's
Certificate stating that, in the opinion of the signer, all conditions
precedent, if any, provided for in this Trust Agreement relating to the proposed
action have been complied with and an Opinion of Counsel stating that in the
opinion of such counsel all such conditions precedent, if any, have been
complied with, except that in the case of any such application or request as to
which the furnishing of such documents is specifically required by any provision
of this Trust Agreement relating to such particular application or request, no
additional certificate or opinion need be furnished.

                  Every certificate or opinion with respect to compliance with a
condition or covenant provided for in this Trust Agreement shall include:

                  (1) a statement that each individual signing such certificate
         or opinion has read such covenant or condition and the definitions
         herein relating thereto;

                  (2) a brief statement as to the nature and scope of the
         examination or investigation upon which the statements or opinions
         contained in such certificate or opinion are based;

                  (3) a statement that, in the opinion of each such individual,
         he has made such examination or investigation as is necessary to enable
         him to express an informed opinion as to whether or not such covenant
         or condition has been complied with; and

                  (4) a statement as to whether, in the opinion of each such
         individual, such condition or covenant has been complied with.

                  Section 1.03. Form of Documents Delivered to Trustee. In any
case where several matters are required to be certified by, or covered by an
opinion of, any specified Person, it is not necessary that all such matters be
certified by, or covered by the opinion of, only one such Person, or that they
be so certified or covered by only one document, but one such Person may certify
or give an opinion with respect to some matters and one or more other such
Persons as to other matters and any such Person may certify or give an opinion
as to such matters in one or several documents.

                  Any Opinion of Counsel stated to be based on the opinion of
other counsel shall be accompanied by a copy of such other opinion.

                                      -8-
<PAGE>

                  Where any Person is required to make, give or execute two or
more applications, requests, consents, certificates, statements, opinions or
other instruments under this Trust Agreement, they may, but need not, be
consolidated and form one instrument.

                  Section 1.04. Acts of Holders. (a) Any direction, consent,
waiver or other action provided by this Trust Agreement to be given or taken by
Holders may be embodied in and evidenced by one or more instruments of
substantially similar tenor signed by such Holders in person or by an agent duly
appointed in writing; and, except as herein otherwise expressly provided, such
action shall become effective when such instrument or instruments are delivered
to the Trustee and, where it is hereby expressly required, to the Company or the
Indenture Trustee. Such instrument or instruments (and the action embodied
therein and evidenced thereby) are herein sometimes referred to as the "Act" of
the Holders signing such instrument or instruments. Proof of execution of any
such instrument or of a writing appointing any such agent shall be sufficient
for any purpose of this Trust Agreement and (subject to Section 6.01) conclusive
in favor of the Trustee, the Company and the Indenture Trustee, if made in the
manner provided in this Section.

                  (b) The fact and date of the execution by any Person of any
such instrument or writing may be proved by the certificate of any notary public
or other officer of any jurisdiction authorized to take acknowledgments of deeds
or administer oaths that the Person executing such instrument acknowledged to
him the execution thereof, or by an affidavit of a witness to such execution
sworn to before any such notary or such other officer and where such execution
is by an officer of a corporation or association or a member of a partnership,
on behalf of such corporation, association or partnership, such certificate or
affidavit shall also constitute sufficient proof of his authority. The fact and
date of the execution of any such instrument or writing, or the authority of the
Person executing the same, may also be proved in any other reasonable manner
which the Trustee deems sufficient.

                  (c) In determining whether the Holders of the requisite
Fractional Undivided Interests of Certificates outstanding have given any
direction, consent or waiver (a "Direction"), under this Trust Agreement,
Certificates owned by the Company, the Guarantor or any Affiliate of any such
Person shall be disregarded and deemed not to be Outstanding under this Trust
Agreement for purposes of any such determination. In determining whether the
Trustee shall be protected in relying upon any such Direction, only Certificates
which the Trustee has actual knowledge of such ownership shall be so
disregarded. Notwithstanding the foregoing, (i) if any such Person owns 100% of
the Certificates Outstanding, such Certificates shall not be so disregarded as
aforesaid, and (ii) if any amount of Certificates so owned by any such Person
have been pledged in good faith, such Certificates shall not be disregarded as
aforesaid if the pledgee establishes to the satisfaction of the Trustee the
pledgee's right so to act with respect to such Certificates and that the pledgee
is not the Company, the Guarantor or any Affiliate of any such Persons.

                  (d) Any Direction or other action by the Holder of any
Certificate shall bind the Holder of every Certificate issued upon the transfer
thereof or in exchange therefor or in lieu thereof, whether or not notation of
such action is made upon such Certificate.

                                      -9-
<PAGE>

                  (e) Except as otherwise provided in Section 1.04(c),
Certificates owned by or pledged to any Person shall have an equal and
proportionate benefit under the provisions of this Trust Agreement, without
preference, priority, or distinction as among all of the Certificates.

                                  ARTICLE II.

                         ACQUISITION OF EQUIPMENT NOTES;
                        ORIGINAL ISSUANCE OF CERTIFICATES

                  Section 2.01. Issuance of Certificates; Acquisition of
Equipment Notes. Upon request of the Company and the satisfaction of the closing
conditions with respect to the purchase of Equipment Notes to be purchased on
the Closing Date, the Trustee shall execute, deliver and authenticate on the
Closing Date Certificates equaling in the aggregate the total aggregate
principal amount of the Equipment Notes expected to be purchased by the Trustee,
evidencing the entire ownership of the Trust. The Trustee shall issue and sell
such Certificates on the Closing Date, in authorized denominations and in such
Fractional Undivided Interests, so as to result in the receipt by the Trustee of
consideration in an amount equal to the aggregate principal amount of all such
Equipment Notes (the "Consideration"). The Trustee shall purchase the Equipment
Notes on the Closing Date at an aggregate purchase price for all such Equipment
Notes equal to the amount of the Consideration. Except as provided in Sections
3.04, 3.05 and 3.08 hereof, the Trustee shall not execute or deliver
Certificates in an aggregate amount in excess of the aggregate amount specified
in this paragraph.

                  Section 2.02. Acceptance by Trustee. (a) The Trustee, upon the
execution and delivery of this Trust Agreement, acknowledges its acceptance of
all right, title, ownership and interest in and to the Equipment Notes acquired
pursuant to Section 2.01 hereof and declares that the Trustee holds and will
hold such right, title, ownership and interest, together with all other property
constituting the Trust Property, for the benefit of all present and future
Certificateholders, upon the terms herein set forth.

                  (b) The Company shall deliver to the Trustee, prior to or
promptly following the establishment of the Trust, copies of all Indentures and
the related Indenture supplements, unless the Pass Through Trustee shall have
previously received such documents.

                  (c) In connection herewith, the Trustee shall execute and
deliver the Letter of Representations.

                  Section 2.03. Limitation of Powers. The Trust is constituted
solely for the purpose of making the investment in the Equipment Notes, and,
except as set forth herein, the Trustee is not authorized or empowered to
acquire any other investments or engage in any other activities and, in
particular, the Trustee is not authorized or empowered to do anything that would
cause the Trust to fail to qualify as a "grantor trust" (within the meaning of
Subpart E, Part I of Subchapter J of the Code) for U.S. federal income tax
purposes (including, as subject to this restriction, acquiring any Item of
Equipment (as defined in the respective Indentures) by bidding on the Equipment
Notes or otherwise, or taking any action with respect to any such Item of
Equipment once acquired).

                                      -10-
<PAGE>

                                  ARTICLE III.

                                THE CERTIFICATES

                  Section 3.01. Form of Certificates. (a) The Certificates shall
be in registered form without coupons and shall be substantially in the form
attached hereto as Exhibit A, with such omissions, variations and insertions as
are permitted by this Trust Agreement, and may have such letters, numbers or
other marks of identification and such legends or endorsements printed,
lithographed or engraved thereon, as may be required to comply with the rules of
any Clearing Agency or to conform to any usage in respect thereof, or as may,
consistently herewith, be prescribed by the Trustee or by the officer executing
such Certificates, such determination by said officer to be evidenced by such
officer signing the Certificates.

                  (b) Certificates offered and sold in reliance on Rule 144A
shall be issued initially in the form of a permanent global Certificate in
registered form, substantially in the form set forth in Exhibit A (the
"Restricted Global"), registered in the name of a nominee of the Depository,
deposited with the Trustee, as custodian for the Depository, duly executed and
authenticated by the Trustee as hereinafter provided. The aggregate principal
amount of a Restricted Global may from time to time be increased or decreased by
adjustments made on the records of the Registrar as hereinafter provided.

                  (c) Certificates offered and sold in offshore transactions in
reliance on Regulation S shall be issued initially in the form of a temporary
global Certificate in registered form substantially in the form set forth in
Exhibit A (the "Temporary Regulation S Global") registered in the name of a
nominee of the Depository for the accounts of Euroclear and Clearstream,
deposited on behalf of the purchasers of the Certificates represented thereby
with the Trustee, as custodian for the Depository, duly executed and
authenticated by the Trustee as hereinafter provided. At any time following
March 27, 2002, upon receipt by the Trustee and the Company of a certificate
substantially in the form of Exhibit C hereto, one or more permanent global
Certificates in registered form substantially in the form set forth in Exhibit A
(the "Permanent Regulation S Global" and, together with the Temporary Regulation
S Global, the "Regulation S Global") duly executed and authenticated by the
Trustee as hereinafter provided shall be deposited with the Trustee, as
custodian for the Depository which shall reflect on its books and records the
date and a decrease in the principal amount of the Temporary Regulation S Global
in an amount equal to the principal amount of the beneficial interest in the
Temporary Regulation S Global transferred. The aggregate principal amount of a
Regulation S Global may from time to time be increased or decreased by
adjustments made in the records of the Trustee, as custodian for the Depository
or its nominee, as herein provided.

                  (d) Certificates issued pursuant to Section 3.06 in exchange
for interests in the Regulation S Global shall be in the form of definitive
Certificates in registered form substantially in the form set forth in Exhibit A
(the "Regulation S Certificated Certificates"). Certificates issued pursuant to
Section 3.06 in exchange for interests in the Restricted Global shall be in the
form of definitive Certificates in registered form substantially in the form set
forth in Exhibit A (the "U.S. Certificated Certificates").

                                      -11-
<PAGE>

                  The Regulation S Certificated Certificates and the U.S.
Certificated Certificates are sometimes collectively referred to herein as the
"Certificated Certificates." The Restricted Global and Regulation S Global are
sometimes collectively herein referred to as the "Global Certificates."

                  The Certificated Certificates shall be typed, printed,
lithographed or engraved or produced by any combination of these methods or may
be produced in any other manner determined by the officers executing such
Certificates, as evidenced by their execution of such Certificates.

                  Section 3.02. Restrictive Legends. (a) Certificate Legends.
Each Restricted Global, Temporary Regulation S Global and U.S. Certificated
Certificate shall bear the legend (the "Private Placement Legend") set forth
below on the face thereof:

         THIS PASS THROUGH CERTIFICATE HAS NOT BEEN REGISTERED UNDER THE
         SECURITIES ACT OF 1933, AS AMENDED, OR THE SECURITIES LAWS OF ANY STATE
         OR OTHER JURISDICTION. NEITHER THIS PASS THROUGH CERTIFICATE NOR ANY
         INTEREST OR PARTICIPATION HEREIN MAY BE OFFERED, SOLD, ASSIGNED,
         TRANSFERRED, PLEDGED, ENCUMBERED OR OTHERWISE DISPOSED OF IN THE
         ABSENCE OF SUCH REGISTRATION OR AN APPLICABLE EXEMPTION THEREFROM.

         THE HOLDER OF THIS PASS THROUGH CERTIFICATE, BY ITS ACCEPTANCE HEREOF,
         AGREES FOR THE BENEFIT OF THE ISSUER THAT (A) THIS PASS THROUGH
         CERTIFICATE MAY BE OFFERED, SOLD, PLEDGED OR OTHERWISE TRANSFERRED ONLY
         (I) INSIDE THE UNITED STATES TO A PERSON WHOM THE SELLER REASONABLY
         BELIEVES IS A QUALIFIED INSTITUTIONAL BUYER (AS DEFINED IN RULE 144A
         UNDER THE SECURITIES ACT) IN A TRANSACTION MEETING THE REQUIREMENTS OF
         RULE 144A, (II) OUTSIDE THE UNITED STATES IN AN OFFSHORE TRANSACTION IN
         ACCORDANCE WITH RULE 904 UNDER THE SECURITIES ACT, (III) PURSUANT TO AN
         EXEMPTION FROM REGISTRATION UNDER THE SECURITIES ACT PROVIDED BY RULE
         144 (IF AVAILABLE) OR (IV) PURSUANT TO AN EFFECTIVE REGISTRATION
         STATEMENT UNDER THE SECURITIES ACT, IN EACH OF CASES (I) THROUGH (IV)
         IN ACCORDANCE WITH ANY APPLICABLE SECURITIES LAWS OF ANY STATE OF THE
         UNITED STATES, AND (B) THE HOLDER WILL, AND EACH SUBSEQUENT HOLDER IS
         REQUIRED TO, NOTIFY ANY SUBSEQUENT PURCHASER OF THIS PASS THROUGH
         CERTIFICATE FROM IT OF THE RESALE RESTRICTIONS REFERRED TO IN (A)
         ABOVE.

                  (b) Global Certificate Legend. Each Global Certificate shall
also bear the following legend on the face thereof:

         UNLESS THIS GLOBAL CERTIFICATE IS PRESENTED BY AN AUTHORIZED
         REPRESENTATIVE OF THE DEPOSITORY TRUST COMPANY TO THE COMPANY OR ITS
         AGENT FOR REGISTRATION OF TRANSFER, EXCHANGE OR PAYMENT, AND ANY NOTE
         ISSUED IS REGISTERED IN THE NAME OF CEDE & CO. OR TO SUCH OTHER ENTITY
         AS IS REQUESTED BY AN AUTHORIZED REPRESENTATIVE OF THE DEPOSITORY TRUST
         COMPANY OR SUCH OTHER REPRESENTATIVE OF THE DEPOSITORY TRUST COMPANY OR
         SUCH OTHER NAME AS IS REQUESTED BY AN AUTHORIZED REPRESENTATIVE OF THE
         DEPOSITORY TRUST COMPANY (AND ANY PAYMENT HEREON IS MADE TO CEDE & CO.
         OR TO SUCH OTHER ENTITY AS IS REQUESTED BY AN AUTHORIZED REPRESENTATIVE
         OF THE DEPOSITORY TRUST COMPANY), ANY TRANSFER, PLEDGE OR OTHER USE
         HEREOF FOR VALUE OR

                                      -12-
<PAGE>

         OTHERWISE BY OR TO ANY PERSON IS WRONGFUL SINCE THE REGISTERED OWNER
         HEREOF, CEDE & CO., HAS AN INTEREST HEREIN.

         TRANSFERS OF THIS GLOBAL CERTIFICATE SHALL BE LIMITED TO TRANSFERS IN
         WHOLE, BUT NOT IN PART, TO NOMINEES OF CEDE & CO. OR TO A SUCCESSOR
         THEREOF OR SUCH SUCCESSOR'S NOMINEE AND TRANSFERS OF PORTIONS OF THIS
         GLOBAL NOTE SHALL BE LIMITED TO TRANSFERS MADE IN ACCORDANCE WITH THE
         RESTRICTIONS SET FORTH IN SECTION 3.07 OF THE TRUST AGREEMENT REFERRED
         TO HEREIN.

                  (c) Each Certificate shall bear the following legend on the
face thereof:

BY ITS ACQUISITION HEREOF, THE HOLDER REPRESENTS THAT EITHER (I) IT IS NOT (A)
AN "EMPLOYEE BENEFIT PLAN" SUBJECT TO TITLE I OF ERISA, (B) A PLAN SUBJECT TO
SECTION 4975 OF THE CODE, (C) AN ENTITY THE UNDERLYING ASSETS OF WHICH INCLUDE
THE ASSETS OF ANY EMPLOYEE BENEFIT PLAN SUBJECT TO TITLE I OF ERISA OR SECTION
4975 OF THE CODE OR (D) A GOVERNMENTAL OR OTHER PLAN THAT IS SUBJECT TO ANY LAW
THAT IS SUBSTANTIALLY SIMILAR TO THE PROVISIONS OF SECTION 406 OF ERISA OR
SECTION 4975 OF THE CODE, OR (II) THE PURCHASE AND HOLDING OF THIS CERTIFICATE
OR INTEREST THEREIN BY SUCH HOLDER WILL NOT RESULT IN A PROHIBITED TRANSACTION
UNDER SECTION 406 OF ERISA, SECTION 4975 OF THE CODE OR ANY SUBSTANTIALLY
SIMILAR LAW FOR WHICH AN EXEMPTION IS NOT AVAILABLE.

                  Section 3.03. Execution, Authentication and Denomination of
Certificates. (a) The Certificates shall be executed on behalf of the Trustee by
manual or facsimile signature of a Responsible Officer of the Trustee.
Certificates bearing the manual or facsimile signature of an individual who was,
at the time when such signature was affixed, authorized to sign on behalf of the
Trustee shall be valid and binding obligations of the Trustee, notwithstanding
that such individual has ceased to be so authorized prior to the authentication
and delivery of such Certificates or did not hold such office at the date of
such authentication and delivery. No Certificate shall be entitled to any
benefit under this Trust Agreement, or be valid for any purposes, unless there
appears on such Certificate a certificate of authentication substantially in the
form set forth in Exhibit A hereto executed by the Trustee by manual signature,
and such certificate upon any Certificate shall be conclusive evidence, and the
only evidence, that such Certificate has been duly authenticated and delivered
hereunder. All Certificates shall be dated the date of their authentication.

                  (b) The Certificates shall be issued in minimum denominations
of $100,000 and integral multiples of $1,000 in excess thereof, except that one
Certificate may be in a denomination of less than $1,000.

                  (c) The Trustee, on the Closing Date, upon the order of the
Company, will cause to be authenticated and delivered, simultaneously with the
sale, assignment, and transfer to the Trustee of the Equipment Notes pursuant to
Section 2.01 hereof, Certificates duly authenticated by the Trustee, in
authorized denominations equaling in the aggregate the aggregate principal
amount of the Equipment Notes so purchased and evidencing the entire ownership
of the Trust.

                  Section 3.04. Temporary Certificates. Pending the preparation
of definitive Certificates, the Trustee may execute, authenticate and deliver
temporary Certificates which are

                                      -13-
<PAGE>

printed, lithographed, typewritten, or otherwise produced, in any denomination,
containing substantially the same terms and provisions as set forth in Exhibit
A, except for such appropriate insertions, omissions, substitutions and other
variations relating to their temporary nature as the officer executing such
temporary Certificates may determine, as evidenced by such officer's execution
of such temporary Certificates.

                  If temporary Certificates are issued, the Trustee will cause
definitive Certificates to be prepared without unreasonable delay. After the
preparation of definitive Certificates, the temporary Certificates shall be
exchangeable for definitive Certificates upon surrender of the temporary
Certificates at the Corporate Trust Office of the Trustee, or at the office or
agency of the Trustee maintained in accordance with Section 6.12, without charge
to the holder. Upon surrender for cancellation of any one or more temporary
Certificates, the Trustee shall execute, authenticate and deliver in exchange
therefor definitive Certificates of authorized denominations of a like aggregate
Fractional Undivided Interest. Until so exchanged, such temporary Certificates
shall in all respects be entitled to the same benefits under this Trust
Agreement as definitive Certificates.

                  Section 3.05. Registration of Transfer and Exchange of
Certificates. The Trustee shall cause to be kept at the office or agency to be
maintained by it in accordance with the provisions of Section 6.12 a register
(the "Register") in which, subject to such reasonable regulations as it may
prescribe, the Trustee shall provide for the registration of Certificates and of
transfers and exchanges of Certificates as herein provided. The Trustee shall
initially be the registrar (the "Registrar") for the purpose of registering
Certificates and transfers and exchanges of Certificates as herein provided.

                  Upon surrender for registration of transfer of any Certificate
at the Corporate Trust Office or such other office or agency, the Trustee shall
execute, authenticate and deliver, in the name of the designated transferee or
transferees, one or more new Certificates in authorized denominations of a like
aggregate Fractional Undivided Interest.

                  At the option of a Certificateholder, Certificates may be
exchanged for other Certificates of authorized denominations of a like aggregate
Fractional Undivided Interest, upon surrender of the Certificates to be
exchanged at any such office or agency. Whenever any Certificates are so
surrendered for exchange, the Trustee shall execute, authenticate and deliver
the Certificates that the Certificateholder making the exchange is entitled to
receive. Every Certificate presented or surrendered for registration of transfer
or exchange shall be duly endorsed or accompanied by a written instrument of
transfer in form satisfactory to the Registrar.

                  No service charge shall be made to a Certificateholder for any
registration of transfer or exchange of Certificates, but the Trustee shall
require payment of a sum sufficient to cover any tax or governmental charge that
may be imposed in connection with any transfer or exchange of Certificates.

                  All Certificates surrendered for registration of transfer and
exchange shall be cancelled and subsequently destroyed by the Trustee.

                                      -14-
<PAGE>

                  Section 3.06. Book-Entry Provisions for Global Certificates.
(a) Each Restricted Global and Regulation S Global initially shall (i) be
registered in the name of the Depository or the nominee of such Depository, (ii)
be delivered to the Trustee as custodian for such Depository and (iii) bear
legends as set forth in Section 3.02 hereof.

                  Clearing Agency Participants shall have no rights under this
Trust Agreement with respect to any Global Certificate held on their behalf by
the Depository, or the Trustee as its custodian, or under any Global
Certificate, and the Depository may be treated by the Company, the Trustee and
any agent of the Company or the Trustee as the absolute owner of such Global
Certificate for all purposes whatsoever. Notwithstanding the foregoing, nothing
herein shall prevent the Company, the Trustee or any agent of the Company or the
Trustee from giving effect to any written certification, proxy or other
authorization furnished by the Depository or impair, as between the Depository
and the Clearing Agency Participants, the operation of customary practices
governing the exercise of the rights of a beneficial owner of any Certificate.

                  (b) Transfers of a Global Certificate shall be limited to
transfers of such Global Certificate in whole, but not in part, to the
Depository, its successors or their respective nominees. Transfers of interests
in one Global Certificate to parties who will hold the interests through the
same Global Certificate will be effected in the ordinary way in accordance with
the respective rules and operating procedures of the Depository, Euroclear or
Clearstream, as the case may be, and the provisions of Section 3.07 hereof. In
addition, U.S. Certificated Certificates or Regulation S Certificated
Certificates shall be issued to all beneficial owners in exchange for their
beneficial interests in a Restricted Global or a Regulation S Global,
respectively, if (i) the Depository notifies the Company that it is no longer
willing or able to continue as a depositary or the Depositary ceases to be a
Clearing Agency and a successor is not appointed within 90 days of such notice
or cessation, (ii) the Company, at its option, advises the Trustee in writing
that it elects to cause the issuance of Certificated Certificates or (iii) after
the occurrence of an Event of Default, Holders of Book-Entry Certificates
evidencing Fractional Undivided Interests aggregating not less than a majority
in interest in the Trust, by Act of said Holders delivered to the Company and
the Trustee, advise the Trustee and the Depository through the Clearing Agency
Participants in writing that the continuation of a book-entry system through the
Clearing Agency is no longer in the best interests of the Holders.

                  (c) Any beneficial interest in one of the Global Certificates
that is transferred to a Person who takes delivery in the form of an interest in
the other Global Certificate will, upon transfer, cease to be an interest in
such Global Certificate and become an interest in the other Global Certificate
and, accordingly, will thereafter be subject to all transfer restrictions, if
any, and other procedures applicable to beneficial interests in such other
Global Certificate for as long as it remains such an interest.

                  (d) In connection with the transfer of all the beneficial
interests in a Restricted Global or Regulation S Global to beneficial owners
pursuant to paragraph (b) of this Section 3.06, the Restricted Global or
Regulation S Global, as the case may be, shall be deemed to be surrendered to
the Trustee for cancellation, and the Trustee shall execute, authenticate and
deliver, to each beneficial owner identified by the Depository in exchange for
its beneficial interest in the Restricted Global or Regulation S Global, as the
case may be, an equal aggregate

                                      -15-
<PAGE>

principal amount of U.S. Certificated Certificates or Regulation S Certificated
Certificates, as the case may be, of authorized denominations.

                  (e) The registered holder of a Global Certificate may grant
proxies and otherwise authorize any Person, including Clearing Agency
Participants and Persons that may hold interests through Clearing Agency
Participants, to take any action which a Holder is entitled to take under this
Trust Agreement or the Certificates.

                  (f) Whenever this Trust Agreement requires or permits actions
to be taken based upon instructions or directions of Holders of Certificates
evidencing a specified percentage of the Fractional Undivided Interests in the
Trust, the Depository shall be deemed to represent such percentage only to the
extent that it has received instructions to such effect from Certificateholders
or Clearing Agency Participants owning or representing, respectively, such
required percentage of the Fractional Undivided Interests in the Trust and has
delivered such instructions to the Trustee; provided that the Trustee shall have
no obligation to determine whether the Depository has in fact received any such
instructions.

                  Section 3.07. Special Transfer Provisions. (a) Transfers to
QIBs. The following provisions shall apply with respect to the registration of
any proposed transfer to a QIB (excluding Non-U.S. Persons):

                  (i) If the Certificates to be transferred consists of
         Certificated Certificates or an interest in a Temporary Regulation S
         Global, the Registrar shall register the transfer if such transfer is
         being made by a proposed transferor who has checked the box provided
         for on the form of Certificate stating, or has otherwise advised the
         Company and the Registrar in writing, that the sale has been made in
         compliance with the provisions of Rule 144A to a transferee which has
         signed the certification provided for on the form of Certificate
         stating, or has otherwise advised the Company and the Registrar in
         writing, that it is purchasing the Certificate for its own account or
         an account with respect to which it exercises sole investment
         discretion and that it and any such account is a QIB, and is aware that
         the sale to it is being made in reliance on Rule 144A and acknowledges
         that it has received such information regarding the Trust and/or the
         Company as it has requested pursuant to Rule 144A or has determined not
         to request such information and that it is aware that the transferor is
         relying upon its foregoing representations in order to claim the
         exemption from registration under the Securities Act provided by Rule
         144A.

                  (ii) If the transferor is a Clearing Agency Participant
         holding a beneficial interest in the Restricted Global, upon receipt by
         the Registrar of the documents referred to in clause (i) and
         instructions given in accordance with the Depository's and the
         Registrar's procedures, the Registrar shall reflect on its books and
         records the date and an increase in the principal amount of such
         Restricted Global in an amount equal to the principal amount of the
         interests U.S. Certificated Certificates or in the Temporary Regulation
         S Global, as the case may be, to be transferred, and the Trustee shall
         cancel such Certificated Certificates or decrease the amount of such
         Temporary Regulation S Global so transferred.

                                      -16-
<PAGE>

                  (b) Transfers of Interests in Permanent Regulation S Global or
Regulation S Certificated Certificates to U.S. Persons. The Registrar shall
register any transfer of interests in the Permanent Regulation S Global or
Regulation S Certificated Certificates without requiring any additional
certification.

                  (c) Transfers to Non-U.S. Persons at Any Time. The following
provisions shall apply with respect to any transfer of a Certificate to a
Non-U.S. Person:

                  (i) The Registrar shall register any proposed transfer to any
         Non-U.S. Person if the Certificate to be transferred is an interest in
         a Restricted Global only upon receipt of a certificate substantially in
         the form of Exhibit D from the proposed transferor.

                  (ii) (A) If the proposed transferor is a Clearing Agency
         Participant holding a beneficial interest in a Restricted Global, upon
         receipt by the Registrar of (x) the documents required by paragraph (i)
         and (y) instructions in accordance with the Depository's and the
         Registrar's procedures, the Registrar shall reflect on its books and
         records the date and a decrease in the principal amount of such
         Restricted Global in an amount equal to the principal amount of the
         beneficial interest in the Restricted Global to be transferred, and (B)
         the proposed transferee is a Clearing Agency Participant, upon receipt
         by the Registrar of instructions given in accordance with the
         Depository's and the Registrar's procedures, the Registrar shall
         reflect on its books and records the date and an increase in the
         principal amount of such Regulation S Global in an amount equal to the
         principal amount of the U.S. Certificated Certificates or the
         Restricted Global, as the case may be, to be transferred, and the
         Trustee shall cancel such Certificated Certificates, if any, so
         transferred or decrease the amount of the Restricted Global.

                  (d) Private Placement Legend. Upon the registration of
transfer, exchange or replacement of Certificates not bearing the Private
Placement Legend, the Registrar shall deliver Certificates that do not bear the
Private Placement Legend. Upon the registration of transfer, exchange or
replacement of Certificates bearing the Private Placement Legend, the Registrar
shall deliver only Certificates that bear the Private Placement Legend unless
either (i) the Private Placement Legend is no longer required by Section 3.02 or
(ii) there is delivered to the Registrar an Opinion of Counsel reasonably
satisfactory to the Company and the Trustee to the effect that neither such
legend nor the related restrictions on transfer are required in order to
maintain compliance with the provisions of the Securities Act.

                  (e) General. By its acceptance of any Certificate bearing the
Private Placement Legend, each Holder of such a Certificate acknowledges the
restrictions on transfer of such Certificate set forth in this Trust Agreement
and in the Private Placement Legend and agrees that it will transfer such
Certificate only as provided in this Trust Agreement. The Registrar shall not
register a transfer of any Certificate unless such transfer complies with the
restrictions on transfer of such Certificate set forth in this Trust Agreement.
In connection with any transfer of Certificates, each Certificateholder agrees
by its acceptance of the Certificates to furnish to the Registrar and the
Trustee such certificates, legal opinions or other information as either of them
may reasonably require to confirm that such transfer is being made pursuant to
an exemption from, or a transaction not subject to, the Securities Act; provided
that the Registrar shall not be

                                      -17-
<PAGE>

required to determine the sufficiency of any such certifications, legal opinions
or other information.

                  Until such time as no Certificates remain outstanding, the
Registrar shall retain, in accordance with its customary procedures, copies of
all letters, notices and other written communications received pursuant to
Section 3.06 or this Section 3.07. The Trustee shall have the right to inspect
and make copies of all such letters, notices or other written communications at
any reasonable time upon the giving of reasonable written notice to the
Registrar.

                  (f) Notwithstanding anything contained herein to the contrary,
subject to compliance with the provisions of this Section 3.07, the Trustee
shall not be responsible for independently ascertaining whether any transfer in
fact complies with the registration requirements or exemptions therefrom under
the Securities Act or the Securities Act of 1934, as amended, applicable state
or other federal securities law or the Investment Company Act of 1940, as
amended.

                  Section 3.08. Mutilated, Destroyed, Lost or Stolen
Certificates. If (a) any mutilated Certificate is surrendered to the Registrar,
or the Registrar receives evidence to its satisfaction of the destruction, loss
or theft of any Certificate and (b) there is delivered to the Registrar and the
Trustee such security, indemnity or bond, as may be required by them to save
each of them harmless, then, in the absence of notice to the Registrar or the
Trustee that such Certificate has been acquired by a protected purchaser, the
Trustee shall execute, authenticate and deliver, in exchange for or in lieu of
any such mutilated, destroyed, lost or stolen Certificate, a new Certificate of
like Fractional Undivided Interest with the same final Distribution Date. In
connection with the issuance of any new Certificate under this Section 3.08, the
Trustee shall require the payment of a sum sufficient to cover any tax or other
governmental charge that may be imposed in relation thereto and any other
expenses (including the fees and expenses of the Trustee and the Registrar)
connected therewith. Any duplicate Certificate issued pursuant to this Section
3.08 shall constitute conclusive evidence of the appropriate Fractional
Undivided Interest in the Trust, as if originally issued, whether or not the
lost, stolen or destroyed Certificate shall be found at any time.

                  Section 3.09. Persons Deemed Owners. Prior to due presentation
of a Certificate for registration of transfer, the Trustee, the Registrar, and
any Paying Agent of the Trustee shall treat the person in whose name any
Certificate is registered as the owner of such Certificate for the purpose of
receiving distributions pursuant to Section 4.02 and for all other purposes
whatsoever, and neither the Trustee, the Registrar, nor any Paying Agent of the
Trustee shall be affected by any notice to the contrary.

                  Section 3.10. Cancellation. All Certificates surrendered for
payment, registration of transfer or exchange shall, if surrendered to any
Person or party hereto other than the Registrar, be delivered by such Person to
the Registrar for cancellation. No Certificates shall be authenticated in lieu
of or in exchange for any Certificates cancelled as provided in this Section,
except as expressly permitted by this Trust Agreement. All cancelled
Certificates held by the Registrar shall be destroyed and a certification of
their destruction delivered to the Trustee.

                                      -18-
<PAGE>

                  Section 3.11. Limitation of Liability for Payments. All
payments or distributions made to Certificateholders under this Trust Agreement
shall be made only from the Trust Property and only to the extent that the
Trustee shall have sufficient income or proceeds from the Trust Property to make
such payments in accordance with the terms of Article IV of this Trust
Agreement. Each Holder of a Certificate, by its acceptance of such Certificate,
agrees that it will look solely to the income and proceeds from the Trust
Property to the extent available for distribution to the Holder thereof as
provided in this Trust Agreement.

                                  ARTICLE IV.

                 DISTRIBUTIONS; STATEMENTS TO CERTIFICATEHOLDERS

                  Section 4.01. Certificate Account and Special Payments
Account. (a) The Trustee shall establish and maintain on behalf of the
Certificateholders the Certificate Account with the Trustee as one or more
non-interest bearing accounts. The Trustee shall hold the Certificate Account in
trust for the benefit of the Certificateholders, and shall make or permit
withdrawals therefrom only as provided in this Trust Agreement. On each day when
a Scheduled Payment is made under any Indenture to the Trustee, as holder of the
Equipment Notes issued under such Indenture, the Trustee upon receipt shall
immediately deposit the aggregate amount of such Scheduled Payment in the
Certificate Account.

                  (b) The Trustee shall establish and maintain on behalf of the
Certificateholders the Special Payments Account with the Trustee as one or more
accounts, which shall be non-interest bearing except as provided in Section
4.04. The Trustee shall hold the Special Payments Account in trust for the
benefit of the Certificateholders, and shall make or permit withdrawals
therefrom only as provided in this Trust Agreement. On each day when a Special
Payment is made under any Indenture to the Trustee, as holder of the Equipment
Notes issued under such Indenture, the Trustee upon receipt shall immediately
deposit the aggregate amount of such Special Payments in the Special Payments
Account.

                  (c) The Trustee shall present to the Indenture Trustee to
which an Equipment Note relates such Equipment Note on the date of its stated
final maturity, or in the case of any Equipment Note which is to be prepaid in
whole pursuant to the relevant Indenture, on the applicable prepayment date
under such Indenture.

                  Section 4.02. Distributions from Certificate Account and
Special Payments Account. (a) Subject to Section 6.07(b), on each Regular
Distribution Date or as soon thereafter as the Trustee has confirmed receipt of
the payment of the Scheduled Payments due on the Equipment Notes, the Trustee
shall distribute out of the Certificate Account the entire amount deposited
therein pursuant to Section 4.01(a). There shall be so distributed to each
Certificateholder of record on the Record Date with respect to such Regular
Distribution Date (other than as provided in Section 11.01 concerning the final
distribution) by check mailed to such Certificateholder at the address appearing
in the Register such Certificateholder's pro rata share (based on the aggregate
Fractional Undivided Interest held by such Certificateholder) of the aggregate
amount in the Certificate Account, except that, with respect to Certificates

                                      -19-
<PAGE>

registered on the Record Date in the name of the Depository (or its nominee),
such distribution shall be made by wire transfer in immediately available funds
to the account designated by the Depository (or such nominee).

                  (b) On each Special Distribution Date with respect to any
Special Payment or as soon thereafter as the Trustee has confirmed receipt of
the Special Payments due on the Equipment Notes or realized upon the sale of any
Equipment Note, the Trustee shall distribute out of the Special Payments Account
the entire amount deposited therein pursuant to Section 4.01(b). There shall be
so distributed to each Certificateholder of record on the Record Date with
respect to such Special Distribution Date (other than as provided in Section
11.01 concerning the final distribution) by check mailed to such
Certificateholder at the address appearing in the Register such
Certificateholder's pro rata share (based on the aggregate Fractional Undivided
Interest held by such Certificateholder) of the aggregate amount in the Special
Payments Account on account of such Special Payment, except that, with respect
to Certificates registered on the Record Date in the name of the Depository (or
its nominee), such distribution shall be made by wire transfer in immediately
available funds to the account designated by the Depository (or such nominee).

                  (c) The Trustee shall at the expense of the Company cause
notice of each Special Payment to be mailed to each Holder of a Certificate at
his address as it appears in the Register. In the event of prepayment of
Equipment Notes, such notice shall be mailed not less than 20 days prior to the
date any such Special Payment is scheduled to be distributed. In the case of any
other Special Payments, such notice shall be mailed as soon as practicable after
the Trustee has confirmed that it has received funds for such Special Payment
and shall state the Special Distribution Date for such Special Payment, which
shall occur 20 days after the date of such notice of Special Payment or (if such
20th day is not practicable) as soon as practicable thereafter. Notices mailed
by the Trustee shall set forth:

                  (i) the Special Distribution Date and the Record Date therefor
         (except as otherwise provided in Section 11.01),

                  (ii) the amount of the Special Payment for each $1,000 face
         amount Certificate and the amount thereof constituting principal,
         premium, if any, and interest,

                  (iii) the reason for the Special Payment, and

                  (iv) if the Special Distribution Date is the same date as a
         Regular Distribution Date, the total amount to be received on such date
         for each $1,000 face amount Certificate.

If the amount of premium payable upon the prepayment of an Equipment Note has
not been calculated at the time that the Trustee mails notice of a Special
Payment, it shall be sufficient if the notice sets forth the other amounts to be
distributed and states that any premium received will also be distributed.

                  Section 4.03. Statements to Certificateholders. (a) On each
Regular Distribution Date and Special Distribution Date, the Trustee will
include with each distribution to

                                      -20-
<PAGE>

Certificateholders of record a statement, giving effect to such distribution to
be made on such Regular Distribution Date or Special Distribution Date, as the
case may be, setting forth the following information (per a $1,000 face amount
Certificate as to (i) and (ii) below):

                  (i) the amount of such distribution allocable to principal
         and the amount allocable to premium, if any; and

                  (ii) the amount of such distribution allocable to interest;
         and

                  (iii) the Pool Balance and the Pool Factor.

                  With respect to the Certificates registered in the name of the
Depository or its nominee, on the Record Date prior to each Regular Distribution
Date and Special Distribution Date, the Trustee will request from the Depository
a securities position listing setting forth the names of all the Clearing Agency
Participants reflected on the Depository's books as holding interests in the
Certificates on such Record Date. On each Regular Distribution Date and Special
Distribution Date, the Trustee will mail to each such Clearing Agency
Participant the statement described above and will make available additional
copies as requested by such Clearing Agency Participants for forwarding to
holders of the Certificates.

                  (b) Within a reasonable period of time after the end of each
calendar year but not later than the latest date permitted by law, the Trustee
shall furnish to each Person who at any time during such calendar year was a
Certificateholder of record a statement containing the sum of the amounts
determined pursuant to clauses (a) (i) and (a) (ii) with respect to the Trust
for such calendar year or, in the event such Person was a Certificateholder of
record during a portion of such calendar year, for the applicable portion of
such year, and such other items as are readily available to the Trustee and
which a Certificateholder shall reasonably request in writing as necessary for
the purpose of such Certificateholder's preparation of its Federal income tax
returns. With respect to Certificates registered in the name of the Depository
or its nominee, such statement and such other items shall be prepared on the
basis of information supplied to the Trustee by the Clearing Agency Participants
and shall be delivered by the Trustee to such Clearing Agency Participants to be
available for forwarding by such Clearing Agency Participants to the holders of
interests in the Certificates.

                  Section 4.04. Investment of Special Payment Moneys. Any money
received by the Trustee pursuant to Section 4.01(b) representing a Special
Payment which is not to be promptly distributed shall, to the extent
practicable, be invested in Permitted Investments by the Trustee pending
distribution of such Special Payment pursuant to Section 4.02. Any investment
made pursuant to this Section 4.04 shall be in such Permitted Investments having
maturities not later than the date that such moneys are required to be used to
make the payment required under Section 4.02 on the applicable Special
Distribution Date and the Trustee shall hold any such Permitted Investments
until maturity. The Trustee shall have no liability with respect to any
investment made pursuant to this Section 4.04, other than by reason of the
willful misconduct or gross negligence (or negligence in the handling of funds)
of the Trustee. All income and earnings from such investments shall be
distributed on such Special Distribution Date as part of such Special Payment.

                                      -21-
<PAGE>

                                   ARTICLE V.

                                     DEFAULT

                  Section 5.01. Events of Default. If any Indenture Default
under any Indenture (an "Event of Default") shall occur and be continuing, then,
and in each and every case, so long as such Event of Default shall be
continuing, the Trustee may, but shall have no duty to, vote all of the
Equipment Notes held in the Trust to which such Event of Default relates, and
upon the direction of the holders of Certificates evidencing Fractional
Undivided Interests aggregating not less than a majority in interest in the
Trust, the Trustee shall vote a corresponding majority of such Equipment Notes,
in favor of directing the Indenture Trustee to which such Event of Default
relates, to declare the unpaid principal amount of the Equipment Notes then
outstanding to which such Event of Default relates and accrued interest thereon
to be due and payable under, and in accordance with the provisions of, the
relevant Indenture. In addition, subject to Section 5.04, if an Indenture
Default shall have occurred and be continuing under any Indenture, the Trustee
may, but shall have no duty to, and upon the direction of the holders of
Certificates evidencing Fractional Undivided Interests aggregating not less than
a majority in interest in the Trust, the Trustee shall, in accordance with the
relevant Indenture, vote the Equipment Notes held in the Trust to which such
Event of Default relates to direct the Indenture Trustee regarding the exercise
of remedies provided in Article IV of such Indenture. The Trustee shall so vote
only Equipment Notes issued under an Indenture with respect to which an
Indenture Default has occurred and is continuing.

                  In addition, after an Event of Default shall have occurred and
be continuing with respect to any Equipment Notes, the Trustee may, but shall be
under no duty to, in its discretion, and upon the direction of the
Certificateholders evidencing Fractional Undivided Interests aggregating not
less than a majority in interest in the Trust shall, by such officer or agent as
it may appoint, sell, convey, transfer and deliver such Equipment Note or
Equipment Notes, without recourse to or warranty by the Trustee or any
Certificateholder, to any Person. In any such case, the Trustee shall sell,
assign, contract to sell or otherwise dispose of and deliver such Equipment Note
or Equipment Notes in one or more parcels at public or private sale or sales, at
any location or locations at the option of the Trustee, all upon such terms and
conditions as it may reasonably deem advisable and at such prices as it may
reasonably deem advisable, for cash. If the Trustee so decides or is required to
sell or otherwise dispose of any Equipment Note pursuant to this Section, the
Trustee shall take such of the actions described above as it may reasonably deem
most effective to complete the sale or other disposition of such Equipment Note,
so as to provide for the payment in full of all amounts due on the Certificates.
The Trustee shall give notice to the Company promptly after any such sale.
Notwithstanding the foregoing, any action taken by the Trustee under this
Section shall not, in the reasonable judgment of the Trustee, be adverse to the
best interests of the Certificateholders.

                  Section 5.02. Incidents of Sale of Equipment Notes. Upon any
sale of all or any part of the Equipment Notes made either under the power of
sale given under this Trust Agreement or otherwise for the enforcement of this
Trust Agreement, the following shall be applicable:

                                      -22-
<PAGE>

                  (1) Certificateholders and Trustee May Purchase Equipment
         Notes. Any Certificateholder, the Trustee in its individual or any
         other capacity or any other Person may bid for and purchase any of the
         Equipment Notes, and upon compliance with the terms of sale, may hold,
         retain, possess and dispose of such Equipment Notes in their or its or
         his own absolute right without further accountability.

                  (2) Receipt of Trustee Shall Discharge Purchaser. The receipt
         of the Trustee or of the officer making such sale shall be a sufficient
         discharge to any purchaser for his purchase money, and, after paying
         such purchase money and receiving such receipt, such purchaser or his
         personal representative or assigns shall not be obliged to see to the
         application of such purchase money, or be in any way answerable for any
         loss, misapplication or nonapplication thereof.

                  (3) Application of Moneys Received upon Sale. Any moneys
         collected by the Trustee upon any sale made either under the power of
         sale given by this Trust Agreement or otherwise for the enforcement of
         this Trust Agreement, shall be applied as provided in Section 4.02.

                  Section 5.03. Judicial Proceedings Instituted by Trustee. (a)
If there shall be a failure to make payment of the principal of, premium, if
any, or interest on any Equipment Note, then the Trustee, in its own name, and
as trustee of an express trust, as holder of such Equipment Notes, shall be, to
the extent permitted by and in accordance with the terms of the Transaction
Documents, entitled and empowered to institute any suits, actions or proceedings
at law, in equity or otherwise, for the collection of the sums so due and unpaid
on such Equipment Notes and may prosecute any such claim or proceeding to
judgment or final decree with respect to the whole amount of any such sums so
due and unpaid.

                  (b) The Trustee in its own name, or as trustee of an express
trust, or as attorney-in-fact for the Certificateholders, or in any one or more
of such capacities (irrespective of whether distributions on the Certificates
shall then be due and payable, or the payment of the principal on the Equipment
Notes shall then be due and payable, as therein expressed or by declaration or
otherwise and irrespective of whether the Trustee shall have made any demand to
the Indenture Trustee for the payment of overdue principal, premium (if any) or
interest on the Equipment Notes), shall be entitled and empowered to file such
proofs of claim and other papers or documents as may be necessary or advisable
in order to have the claims of the Trustee and of the Certificateholders allowed
in any receivership, insolvency, bankruptcy, liquidation, readjustment,
reorganization or any other judicial proceedings relative to the Company or a
Lessor, their respective creditors or property. Any receiver, assignee, trustee,
liquidator, sequestrator (or similar official) in any such judicial proceeding
is hereby authorized by each Certificateholder to make payments in respect of
such claim to the Trustee, and in the event that the Trustee shall consent to
the making of such payments directly to the Certificateholders, to pay to the
Trustee any amount due to it for the reasonable compensation, expenses,
disbursements and advances of the Trustee, its agents and counsel and any other
amounts owed to the Trustee under Section 6.07. Nothing contained in this Trust
Agreement shall be deemed to give to the Trustee any right to accept or consent
to any plan of reorganization or otherwise by

                                      -23-
<PAGE>

action of any character in any such proceeding to waive or change in any way any
right of any Certificateholder.

                  Section 5.04. Control by Certificateholders. The
Certificateholders evidencing Fractional Undivided Interests aggregating not
less than a majority in interest in the Trust shall have the right to direct the
time, method and place of conducting any proceeding for any remedy available to
the Trustee, or exercising any trust or power conferred on the Trustee under
this Trust Agreement, including any right of the Trustee as holder of the
Equipment Notes, provided that:

                  (1) such direction shall not be in conflict with any rule of
         law or with this Trust Agreement and would not involve the Trustee in
         personal liability or expense for which indemnification acceptable in
         form and substance to the Trustee has not been provided,

                  (2) the Trustee shall not determine that the action so
         directed would be unjustly prejudicial to the Certificateholders not
         taking part in such direction,

                  (3) the Trustee may take any other action deemed proper by the
         Trustee which is not inconsistent with such direction, and

                  (4) if an Indenture Default under any Indenture shall have
         occurred and be continuing, such direction shall not obligate the
         Trustee to vote more than a corresponding majority of the related
         Equipment Notes held by the Trust in favor of directing any action by
         the Indenture Trustee with respect to such Indenture Default.

                  Section 5.05. Waiver of Past Defaults. The Certificateholders
evidencing Fractional Undivided Interests aggregating not less than a majority
in interest in the Trust may on behalf of the Certificateholders of all the
Certificates waive any past Event of Default hereunder and its consequences or
may instruct the Trustee to waive any past default under any Indenture or this
Trust Agreement and its consequences, except a default

                  (1) in the deposit of any Scheduled Payment or Special Payment
         under Section 4.01 or in the distribution of any payment under Section
         4.02 on the Certificates, or

                  (2) in the payment of the principal of (or premium, if any) or
         interest on any Equipment Notes, or

                  (3) in respect of a covenant or provision hereof which under
         Article IX hereof cannot be modified or amended without the consent of
         the Certificateholder of each Outstanding Certificate affected.

                  Upon any such waiver, such default shall cease to exist with
respect to this Trust Agreement, and any Event of Default arising therefrom
shall be deemed to have been cured for every purpose of this Trust Agreement and
any direction given by the Trustee on behalf of such holders to the Indenture
Trustee shall be annulled with respect thereto; but no such waiver shall extend
to any subsequent or other default or Event of Default or impair any right
consequent

                                      -24-
<PAGE>

thereon. Upon any such waiver, the Trustee shall vote the Equipment Notes issued
under the relevant Indenture to waive the corresponding Indenture Default.

                  Section 5.06. Undertaking to Pay Court Costs. All parties to
this Trust Agreement, and each Certificateholder by his acceptance of a
Certificate, shall be deemed to have agreed that any court may in its discretion
require, in any suit, action or proceeding for the enforcement of any right or
remedy under this Trust Agreement, or in any suit, action or proceeding against
the Trustee for any action taken or omitted by it as Trustee hereunder, the
filing by any party litigant in such suit, action or proceeding of an
undertaking to pay the costs of such suit, action or proceeding, and that such
court may, in its discretion, assess reasonable costs, including reasonable
attorneys' fees, against any party litigant in such suit, action or proceeding,
having due regard to the merits and good faith of the claims or defenses made by
such party litigant; provided, however, that the provisions of this Section
shall not apply to (a) any suit, action or proceeding instituted by any
Certificateholder or group of Certificateholders evidencing Fractional Undivided
Interests aggregating more than 10% of the Trust, (b) any suit, action or
proceeding instituted by any Certificateholder for the enforcement of the
distribution of payments pursuant to Section 4.02 hereof on or after the
respective due dates expressed herein or (c) any suit, action or proceeding
instituted by the Trustee.

                  Section 5.07. Right of Certificateholders to Receive Payments
Not to Be Impaired. Anything in this Trust Agreement to the contrary
notwithstanding, including, without limitation, Section 5.08 hereof, the right
of any Certificateholder to receive distributions of payments required pursuant
to Section 4.02 hereof on the Certificates when due, or to institute suit for
the enforcement of any such payment on or after the applicable Distribution Date
or Special Distribution Date, shall not be impaired or affected without the
consent of such Certificateholder.

                  Section 5.08. Certificateholders May Not Bring Suit Except
Under Certain Conditions. A Certificateholder shall not have the right to
institute any suit, action or proceeding at law or in equity or otherwise with
respect to this Trust Agreement, for the appointment of a receiver or for the
enforcement of any other remedy under this Trust Agreement, unless:

                  (1) such Certificateholder previously shall have given written
         notice to the Trustee of a continuing Event of Default;

                  (2) the Certificateholders evidencing Fractional Undivided
         Interests aggregating not less than a majority in interest of the Trust
         shall have requested the Trustee in writing to institute such action,
         suit or proceeding and shall have offered to the Trustee indemnity as
         provided in Section 6.03(e);

                  (3) the Trustee shall have refused or neglected to institute
         any such action, suit or proceeding for 60 days after receipt of such
         notice, request and offer of indemnity; and

                  (4) no direction inconsistent with such written request has
         been given to the Trustee during such 60 day period by the
         Certificateholders evidencing Fractional Undivided Interests
         aggregating not less than a majority in interest in the Trust.

                                      -25-
<PAGE>

                  It is understood and intended that no one or more of the
Certificateholders shall have any right in any manner whatever hereunder or
under the Certificates to (i) surrender, impair, waive, affect, disturb or
prejudice any property which is part of the Trust Property or the lien of any
Indenture on any property subject thereto, or the rights of the
Certificateholders or the holders of the Equipment Notes, (ii) obtain or seek to
obtain priority over or preference to any other such Holder or (iii) enforce any
right under this Trust Agreement, except in the manner herein provided and for
the equal, ratable and common benefit of all the Certificateholders subject to
the provisions of this Trust Agreement.

                  Section 5.09. Remedies Cumulative. Every remedy given
hereunder to the Trustee or to any of the Certificateholders shall not be
exclusive of any other remedy or remedies, and every such remedy shall be
cumulative and in addition to every other remedy given hereunder or now or
hereafter given by statute, law, equity or otherwise.

                                  ARTICLE VI.

                                   THE TRUSTEE

                  Section 6.01. Certain Duties and Responsibilities. (a) Except
during the continuance of an Event of Default:

                  (1) the Trustee undertakes to perform such duties as are
         specifically set forth in this Trust Agreement, and no implied
         covenants or obligations shall be read into this Trust Agreement
         against the Trustee; and

                  (2) in the absence of bad faith on its part, the Trustee may
         conclusively rely, as to the truth of the statements and the
         correctness of the opinions expressed therein, upon certificates or
         opinions furnished to the Trustee and conforming to the requirements of
         this Trust Agreement; but in the case of any such certificates or
         opinions which by any provision hereof are specifically required to be
         furnished to the Trustee, the Trustee shall be under a duty to examine
         the same to determine whether or not they conform to the requirements
         of this Trust Agreement.

                  (b) In case an Event of Default has occurred and is
continuing, the Trustee shall exercise such of the rights and powers vested in
it by this Trust Agreement, and use the same degree of care and skill in their
exercise, as a prudent man would exercise or use under the circumstances in the
conduct of his own affairs; provided however, that the Trustee shall take no
action that would cause the Trust to cease to qualify as a "grantor trust"
(within the meaning of Subpart E, Part I, Subchapter J of the Code) for U.S.
federal income tax purposes.

                  (c) No provision of this Trust Agreement shall be construed to
relieve the Trustee from liability for its own grossly negligent action (or
negligent action in the handling of funds), its own grossly negligent failure to
act (or negligent failure to act in the handling of funds), or its own willful
misconduct, except that:

                                      -26-
<PAGE>

                  (1) this Subsection shall not be construed to limit the effect
         of Subsection (a) of this Section;

                  (2) the Trustee shall not be liable for any error of judgment
         made in good faith by a Responsible Officer of the Trustee, unless it
         shall be proved that the Trustee was negligent in ascertaining the
         pertinent facts;

                  (3) the Trustee shall not be liable with respect to any action
         taken or omitted to be taken by it in good faith in accordance with the
         direction of the Certificateholders evidencing Fractional Undivided
         Interests aggregating not less than a majority in interest in the Trust
         (unless this Trust Agreement expressly provides for a different
         aggregate amount) relating to the time, method and place of conducting
         any proceeding for any remedy available to the Trustee on behalf of the
         Holders or the Trust, or managing the Trust or exercising any trust or
         power conferred upon the Trustee for the benefit of such Holders or the
         Trust, under this Trust Agreement; and

                  (4) no provision of this Trust Agreement shall require the
         Trustee to expend or risk its own funds in the performance of any of
         its duties hereunder, or in the exercise of any of its rights or
         powers, if it shall have reasonable grounds for believing that
         repayment of such funds or adequate indemnity against such risk is not
         reasonably assured to it.

                  (d) Whether or not herein expressly so provided, every
provision of this Trust Agreement relating to the conduct or affecting the
liability of or affording protection to the Trustee shall be subject to the
provisions of this Section.

                  (e) The Trustee is authorized and directed to execute such
other documents and take such other action as Holders of Certificates evidencing
Fractional Undivided Interests aggregating not less than a majority in interest
in the Trust specifically direct in written instructions delivered to the
Trustee; provided, however, that the Trustee shall not be required to take any
action if the Trustee shall determine, or shall be advised by counsel, that such
action is likely to result in personal liability or is contrary to applicable
law or any agreement to which the Trustee is a party or would cause the Trust to
cease to qualify as a "grantor trust" (within the meaning of Subpart E, Part I,
Subchapter J of the Code) for U.S. federal income tax purposes. The Trustee
shall have the right to obtain an opinion of counsel to the effect that such
action would not cause the Trust to cease to qualify as a "grantor trust"
(within the meaning of Subpart E, Part I, Subchapter J of the Code) for U.S.
federal income tax purposes.

                  Section 6.02. Notice of Defaults. As promptly as practicable,
and in any event within 90 days after, the occurrence of any default (as such
term is defined below) hereunder actually known to the Trustee, the Trustee
shall transmit by mail to the Company and the Indenture Trustee in accordance
with Section 12.03 and to all Certificateholders, as their names and addresses
appear in the Register, notice of such default, unless such default shall have
been cured or waived; provided, however, that, except in the case of a default
in the payment of the principal of (or premium, if any) or interest on any
Equipment Note, the Trustee shall be protected in withholding such notice if and
so long as the board of directors, the executive

                                      -27-
<PAGE>

committee or a trust committee of directors and/or Responsible Officers of the
Trustee in good faith determine that the withholding of such notice is in the
interests of the Certificateholders. For the purpose of this Section, the term
"default" means an event which is, or after notice or lapse of time or both
would become, an Event of Default pursuant to any Indenture.

                  Section 6.03. Certain Rights of Trustee. Except as otherwise
provided in Section 6.01:

                  (a) the Trustee may rely and shall be protected in acting or
refraining from acting in reliance upon any resolution, certificate, statement,
instrument, opinion, report, notice, request, direction, consent, order, bond,
debenture or other paper or document believed by it to be genuine and to have
been signed or presented by the proper party or parties;

                  (b) any request or direction of the Company mentioned herein
shall be sufficiently evidenced by a Request;

                  (c) whenever in the administration of this Trust Agreement the
Trustee shall deem it desirable that a matter be proved or established prior to
taking, suffering or omitting any action hereunder, the Trustee (unless other
evidence be herein specifically prescribed) may, in the absence of bad faith on
its part, rely upon an Officer's Certificate of the Company or the Indenture
Trustee;

                  (d) the Trustee may consult with counsel and the written
advice of such counsel or any Opinion of Counsel shall be full and complete
authorization and protection in respect of any action taken, suffered or omitted
by it hereunder in good faith and in reliance thereon;

                  (e) the Trustee shall be under no obligation to exercise any
of the rights or powers vested in it by this Trust Agreement at the request or
direction of any of the Certificateholders pursuant to this Trust Agreement,
unless such Certificateholders shall have offered to the Trustee reasonable
security or indemnity against the cost, expenses and liabilities which might be
incurred by it in compliance with such request or direction;

                  (f) the Trustee shall not be bound to make any investigation
into the facts or matters stated in any resolution, certificate, statement,
instrument, opinion, report, notice, request, direction, consent, order, bond,
debenture or other paper or document; and

                  (g) the Trustee may execute any of the trusts or powers
hereunder or perform any duties hereunder either directly or by or through
agents or attorneys and the Trustee shall not be responsible for any misconduct
or negligence on the part of any agent or attorney appointed with due care by it
hereunder;

                  (h) the Trustee shall not be liable for any action taken or
omitted by it in good faith and believed by it to be authorized or within the
discretion, rights or powers conferred upon it by this Trust Agreement, other
than any liabilities arising out of its own gross negligence (or negligence in
the handling of funds) or willful misconduct;

                                      -28-
<PAGE>

                  (i) the permissive rights of the Trustee to do things
enumerated in this Agreement shall not be construed as a duty, and the Trustee
shall not be answerable for other than its gross negligence (or negligence in
the handling of funds) or wilful misconduct;

                  (j) the Trustee shall not be required to give any note or
surety in respect of the execution of the trusts and powers hereunder or
otherwise in respect of the premises; and

                  (k) except for (i) a payment default and (ii) any other event
of which the Trustee has "actual knowledge", which event is or, with the giving
of notice or the passage of time or both, would constitute an Event of Default,
the Trustee shall not be deemed to have notice of any such default or event
unless specifically notified in writing of such event by the Company, any
Indenture Trustee or any Holder; as used herein, the term "actual knowledge"
means the actual fact or statement of knowing, without any duty to make any
investigation with regard thereto.

                  Section 6.04. Not Responsible for Recitals or Issuance of
Certificates. The recitals contained herein and in the Certificates, except the
certificates of authentication, shall not be taken as the statements of the
Trustee, and the Trustee assumes no responsibility for their correctness.
Subject to Section 6.15, the Trustee makes no representations as to the validity
or sufficiency of this Trust Agreement, any Indenture, the Equipment Notes or
the Certificates, except that the Trustee hereby represents and warrants that
this Trust Agreement has been, and each Certificate will be, executed and
delivered by one of its officers who is duly authorized to execute and deliver
such document on its behalf.

                  Section 6.05. May Hold Certificates. The Trustee, any Paying
Agent, the Registrar or any other agent, in their respective individual or any
other capacity, may become the owner or pledgee of Certificates and may
otherwise deal with the Company or the Indenture Trustee with the same rights it
would have if it were not Trustee, Paying Agent, Registrar or such other agent.

                  Section 6.06. Money Held in Trust. Money held by the Trustee
or any Paying Agent in trust hereunder need not be segregated from other funds
except to the extent required herein or by law and neither the Trustee nor any
Paying Agent shall have any liability for interest upon any such moneys except
as provided for herein.

                  Section 6.07. Compensation and Reimbursement. (a) The Company
agrees:

                  (1) to pay, or cause to be paid, to the Trustee from time to
         time such compensation for all services rendered by it hereunder as the
         Company and the Trustee may agree in writing from time to time (which
         compensation shall not be limited by any provision of law in regard to
         the compensation of a trustee of an express trust);

                  (2) except as otherwise expressly provided herein, to
         reimburse, or cause to be reimbursed, the Trustee upon its request for
         all reasonable out of pocket expenses, disbursements and advances
         incurred or made by the Trustee in accordance with any provision of
         this Trust Agreement (including the reasonable compensation and the
         expenses and disbursements of its agents and counsel), except any such
         expense, disbursement or advance as may be attributable to the gross
         negligence (or negligence in

                                      -29-
<PAGE>

         the handling of funds), willful misconduct or bad faith of the Trustee
         or as may be incurred due to the Trustee's breach of its
         representations, warranties and agreements set forth in Sections 6.04,
         6.15 and 6.17 or the Trustee's failure to perform any of its
         obligations hereunder in accordance with its standard of care; and

                  (3) to indemnify, or cause to be indemnified, the Trustee,
         solely in its individual capacity, for, and to hold it harmless
         against, any loss, liability, tax (other than any tax referred to in
         the next paragraph or any tax attributable to the Trustee's
         compensation for serving as such), cost or expense incurred without
         gross negligence (or negligence in the handling of funds), willful
         misconduct or bad faith on its part, arising out of or in connection
         with the acceptance or administration of any Trust, including the costs
         and expenses of (a) defending itself against any claim or liability in
         connection with the exercise or performance of any of its powers or
         duties hereunder or (b) contesting the imposition of any such tax,
         except in each case for any such loss, liability, tax, cost or expense
         incurred by reason of the Trustee's breach of its representations and
         warranties set forth in Section 6.04 or 6.15 or the Trustee's failure
         to perform any of its obligations hereunder in accordance with its
         standard of care. The Trustee shall notify the Company promptly of any
         claim or tax for which it may seek indemnity. The Company shall defend
         the claim and the Trustee shall cooperate in the defense. The Trustee
         may have separate counsel with the consent of the Company and the
         Company will pay the reasonable fees and expenses of such counsel. The
         Company need not pay for any settlement made or any taxes paid, in
         settlement or otherwise, without its consent.

                  (b) In addition, the Trustee shall be entitled to
reimbursement from, and shall have a lien prior to the Certificates upon, all
property and funds held or collected by the Trustee in its capacity as Trustee
for any tax (and if an Event of Default shall have occurred and be continuing,
any and all amounts then due and payable to the Trustee under this Trust
Agreement which is not paid by the Company within 30 days after demand to the
Company for such payment) incurred without gross negligence, bad faith or
willful misconduct, on its part, arising out of or in connection with the
acceptance or administration of the Trust created hereby (other than any tax
attributable to the Trustee's compensation for serving as such), including any
costs and expenses incurred in contesting the imposition of any such tax. If the
Trustee reimburses itself for any such tax it will within 30 days mail a brief
report setting forth the circumstances thereof to the Company and to all
Certificateholders as their names and addresses appear in the Register.

                  (c) If and when the Trustee incurs expenses or renders service
after an Event of Default arising as a result of any bankruptcy or insolvency of
the Company, the expenses and compensation for such services (including the fees
and expenses of its agents and counsel) are intended to constitute expenses of
administration in any such bankruptcy or insolvency proceeding.

                  Section 6.08. Corporate Trustee Required; Eligibility. There
shall at all times be a Trustee hereunder which shall be an institution
organized and doing business under the laws of the United States of America or
of any state, authorized under such laws to exercise corporate trust powers,
having a combined capital and surplus (together with that of its parent) of at
least

                                      -30-
<PAGE>

$100,000,000, and subject to supervision or examination by Federal or
state authority. If such corporation publishes reports of condition at least
annually, pursuant to law or to the requirements of the aforesaid supervising or
examining authority, then for the purposes of this Section, the combined capital
and surplus of such corporation shall be deemed to be its combined capital and
surplus as set forth in its most recent report of condition so published. If at
any time the Trustee shall cease to be eligible in accordance with the
provisions of this Section, it shall resign immediately in the manner and with
the effect hereinafter specified in this Article.

                  Section 6.09. Resignation and Removal; Appointment of
Successor. (a) No resignation or removal of the Trustee and no appointment of a
successor Trustee pursuant to this Article shall become effective until the
acceptance of appointment by the successor Trustee under Section 6.10.

                  (b) The Trustee may resign at any time by giving written
notice thereof to the Company, the Authorized Agents and the Indenture Trustee.
If an instrument of acceptance by a successor Trustee shall not have been
delivered to the Company and the Trustee within 30 days after the giving of such
notice of resignation, the resigning Trustee may petition any court of competent
jurisdiction for the appointment of a successor Trustee.

                  (c) The Trustee may be removed at any time by Act of the
Holders holding Certificates evidencing Fractional Undivided Interests
aggregating not less than a majority in interest in the Trust delivered to the
Trustee and to the Company and the Indenture Trustee.

                  (d) If at any time:

                  (1) the Trustee shall cease to be eligible under Section 6.08
         and shall fail to resign after written request therefor by the Company
         or by any Certificateholder; or

                  (2) the Trustee shall become incapable of acting or shall be
         adjudged a bankrupt or insolvent or a receiver of the Trustee or of its
         property shall be appointed or any public officer shall take charge or
         control of the Trustee or of its property or affairs for the purpose of
         rehabilitation, conservation or liquidation;

then, in any case, (i) the Company may remove the Trustee or (ii) subject to
Section 5.06, any Certificateholder who has been a bona fide Holder of a
Certificate for at least six months may, on behalf of himself and all others
similarly situated, petition any court of competent jurisdiction for the removal
of the Trustee and the appointment of a successor Trustee.

                  (e) If a Responsible Officer of the Trustee shall obtain
actual knowledge of an Avoidable Tax (as hereinafter defined) which has been or
is likely to be asserted, the Trustee shall promptly notify the Company thereof
and shall, within 30 days of such notification, resign hereunder unless within
such 30-day period the Trustee shall have received notice that the Company has
agreed to pay such tax. The Company shall promptly appoint a successor Trustee
in a jurisdiction where there are no Avoidable Taxes. As used herein an
Avoidable Tax means a state or local tax: (i) upon (w) the Trust, (x) the Trust
Property, (y) Holders of the Certificates or (z) the Trustee for which the
Trustee is entitled to seek reimbursement from the Trust Property, and (ii)
which would be avoided if the Trustee were located in another state, or
jurisdiction

                                      -31-
<PAGE>

within a state, within the United States. A tax shall not be an Avoidable Tax if
the Company shall agree to pay, and shall pay, such tax.

                  (f) If the Trustee shall resign, be removed or become
incapable of acting, or if a vacancy shall occur in the office of the Trustee
for any reason, the Company shall promptly appoint a successor Trustee. If,
within one year after such resignation, removal or incapability, or the
occurrence of such vacancy, a successor Trustee shall be appointed by Act of the
Holders holding Certificates evidencing Fractional Undivided Interests
aggregating not less than a majority in interest in the Trust delivered to the
Company, the Indenture Trustee and the retiring Trustee, the successor Trustee
so appointed shall, forthwith upon its acceptance of such appointment, become
the successor Trustee and supersede the successor Trustee appointed as provided
above. If no successor Trustee shall have been so appointed as provided above
and accepted appointment in the manner hereinafter provided, any
Certificateholder who has been a bona fide Holder of a Certificate for at least
six months may, on behalf of himself and all others similarly situated, petition
any court of competent jurisdiction for the appointment of a successor Trustee.

                  (g) The successor Trustee shall give notice of the resignation
and removal of the Trustee and appointment of the successor Trustee by mailing
written notice of such event by first-class mail, postage prepaid, to the
Holders of Certificates as their names and addresses appear in the Register.
Each notice shall include the name of such successor Trustee and the address of
its Corporate Trust Office.

                  Section 6.10. Acceptance of Appointment by Successor. Every
successor Trustee appointed hereunder shall execute, acknowledge and deliver to
the Company and to the retiring Trustee an instrument accepting such
appointment, and thereupon the resignation or removal of the retiring Trustee
shall become effective and such successor Trustee, without any further act, deed
or conveyance, shall become vested with all the rights, powers, trusts and
duties of the retiring Trustee; but, on request of the Company or the successor
Trustee, such retiring Trustee shall execute and deliver an instrument
transferring to such successor Trustee all the rights, powers and trusts of the
retiring Trustee and shall duly assign, transfer and deliver to such successor
Trustee all property and money held by such retiring Trustee hereunder, subject
nevertheless to its lien, if any, provided for in Section 6.07. Upon request of
any such successor Trustee, the Company, the retiring Trustee and such successor
Trustee shall execute and deliver any and all instruments containing such
provisions as shall be necessary or desirable to transfer and confirm to, and
for more fully and certainly vesting in, such successor Trustee all such rights,
powers and trusts.

                  No successor Trustee shall accept its appointment unless at
the time of such acceptance such successor Trustee shall be qualified and
eligible under this Article.

                  Section 6.11. Merger, Conversion, Consolidation or Succession
to Business. Any corporation into which the Trustee may be merged or converted
or with which it may be consolidated, or any corporation resulting from any
merger, conversion or consolidation to which the Trustee shall be a party, or
any corporation succeeding to all or substantially all of the corporate trust
business of the Trustee, shall be the successor of the Trustee hereunder,
provided

                                      -32-
<PAGE>

such corporation shall be otherwise qualified and eligible under this Article,
without the execution or filing of any paper or any further act on the part of
any of the parties hereto. In case any Certificates shall have been
authenticated, but not delivered, by the Trustee then in office, any successor
by merger, conversion or consolidation to such authenticating Trustee may adopt
such authentication and deliver the Certificates so authenticated with the same
effect as if such successor Trustee had itself authenticated such Certificates.

                  Section 6.12. Maintenance of Agencies. (a) There shall at all
times be maintained an office or agency where Certificates may be presented or
surrendered for registration of transfer or for exchange, and for payment
thereof and where notices and demands to or upon the Trustee in respect of the
Certificates or of this Trust Agreement may be served. Such office or agency
shall be initially at the Corporate Trust Office. Written notice of each such
other office or agency and of any change of location thereof shall be given by
the Trustee to the Company, the Indenture Trustee and the Certificateholders. In
the event that no such office or agency shall be maintained or no such notice of
location or of change of location shall be given, presentations and demands may
be made and notices may be served at the Corporate Trust Office of the Trustee.

                  (b) There shall at all times be a Registrar and a Paying Agent
hereunder. Each such Authorized Agent shall be a bank or trust company, shall be
a corporation organized and doing business under the laws of the United States
or any state, with a combined capital and surplus (together with that of its
parent) of at least $100,000,000, and shall be authorized under such laws to
exercise corporate trust powers, subject to supervision by Federal or state
authorities. The Trustee shall initially be the Paying Agent and, as provided in
Section 3.05, Registrar hereunder. Each Registrar shall furnish to the Trustee,
at stated intervals of not more than six months, and at such other times as the
Trustee may request in writing, a copy of the Register.

                  (c) Any corporation into which any Authorized Agent may be
merged or converted or with which it may be consolidated, or any corporation
resulting from any merger, consolidation or conversion to which any Authorized
Agent shall be a party, or any corporation succeeding to the corporate trust
business of any Authorized Agent, shall be the successor of such Authorized
Agent hereunder, if such successor corporation is otherwise eligible under this
Section, without the execution or filing of any paper or any further act on the
part of the parties hereto or such Authorized Agent or such successor
corporation.

                  (d) Any Authorized Agent may at any time resign by giving
written notice of resignation to the Trustee, the Company and the Indenture
Trustee. The Company may, and at the request of the Trustee shall, at any time
terminate the agency of any Authorized Agent by giving written notice of
termination to such Authorized Agent and to the Trustee. Upon the resignation or
termination of an Authorized Agent or in case at any time any such Authorized
Agent shall cease to be eligible under this Section (when, in either case, no
other Authorized Agent performing the functions of such Authorized Agent shall
have been appointed), the Company shall promptly appoint one or more qualified
successor Authorized Agents, reasonably satisfactory to the Trustee, to perform
the functions of the Authorized Agent which has resigned or whose agency has
been terminated or who shall have ceased to be eligible under this Section.

                                      -33-
<PAGE>

The Company shall give written notice of any such appointment made by it to the
Trustee and the Indenture Trustee; and in each case the Trustee shall mail
notice of such appointment to all Holders as their names and addresses appear on
the Register.

                  (e) The Company agrees to pay, or cause to be paid, from time
to time to each Authorized Agent the compensation as set forth in the schedule
agreed to by each Authorized Agent and the Company for its services and to
reimburse it for its reasonable expenses.

                  Section 6.13. Money for Certificate Payments to Be Held in
Trust. All moneys deposited with any Paying Agent for the purpose of any payment
on Certificates shall be deposited and held in trust for the benefit of the
Holders of the Certificates entitled to such payment, subject to the provisions
of this Section. Moneys so deposited and held in trust shall constitute a
separate trust fund for the benefit of the Holders of the Certificates with
respect to which such money was deposited.

                  The Trustee will cause each Paying Agent other than the
Trustee to execute and deliver to it an instrument in which such Paying Agent
shall agree with the Trustee, subject to the provisions of this Section, that
such Paying Agent will:

                  (1) hold all sums held by it for payments on Certificates in
         trust for the benefit of the Persons entitled thereto until such sums
         shall be paid to such Persons or otherwise disposed of as herein
         provided;

                  (2) give the Trustee notice of any default by any obligor upon
         the Certificates in the making of any such payment; and

                  (3) at any time during the continuance of any such default,
         upon the written request of the Trustee, forthwith pay to the Trustee
         all sums so held in trust by such Paying Agent.

                  The Trustee may at any time, for the purpose of obtaining the
satisfaction and discharge of this Trust Agreement or for any other purpose,
direct any Paying Agent to pay to the Trustee all sums held in trust by such
Paying Agent, such sums to be held by the Trustee upon the same trusts as those
upon which such sums were held by such Paying Agent; and, upon such payment by
any Paying Agent to the Trustee, such Paying Agent shall be released from all
further liability with respect to such money.

                  Section 6.14. Registration of Equipment Notes in Trustee's
Name. The Trustee agrees that all Equipment Notes and Specified Investments, if
any, shall be issued in the name of the Trustee or its nominee and held by the
Trustee, or, if not so held, the Trustee or its nominee shall be reflected as
the owner of such Equipment Notes or Specified Investments, as the case may be,
in the register of the issuer of such Equipment Notes or Specified Investments.
In no event shall the Trustee invest in, or hold, Equipment Notes or Specified
Investments in a manner that would cause the Trustee not to have the ownership
interest in such Equipment Notes or Specified Investments under the applicable
provisions of the Uniform Commercial Code in effect where the Trustee holds such
Equipment Notes or Specified Investments, or other applicable law then in
effect.

                                      -34-
<PAGE>

                  Section 6.15. Representations and Warranties of Trustee. The
Trustee hereby represents and warrants that:

                  (i) the Trustee is a Delaware banking corporation duly
         organized, validly existing, and in good standing under the laws of the
         State of Delaware;

                  (ii) the Trustee has full corporate power, authority and legal
         right under the laws of the State of Delaware and the laws of the
         United States pertaining to its banking and trust powers to execute,
         deliver, and perform this Trust Agreement and has taken all necessary
         action to authorize the execution, delivery, and performance by it of
         this Trust Agreement;

                  (iii) the execution, delivery and performance by the Trustee
         of this Trust Agreement will not contravene any law, rule or regulation
         of the State of Delaware or any United States governmental authority or
         agency regulating the Trustee's banking or trust powers or any judgment
         or order applicable to or binding on the Trustee and will not
         contravene or result in any breach of, or constitute a default under,
         the Trustee's charter or by-laws or the provision of any indenture,
         mortgage, contract or other agreement to which it is a party or by
         which it or any of its properties is bound;

                  (iv) the execution, delivery and performance by the Trustee of
         this Trust Agreement will not require the authorization, consent, or
         approval of, the giving of notice to, the filing or registration with,
         or the taking of any other action in respect of, any United States or
         Delaware governmental authority or agency regulating the banking and
         trust activities of the Trustee; and

                  (v) this Trust Agreement has been duly executed and delivered
         by the Trustee and constitutes the legal, valid, and binding agreements
         of the Trustee, enforceable in accordance with its terms, provided that
         enforceability may be limited by applicable bankruptcy, insolvency,
         reorganization, moratorium or similar laws affecting the rights of
         creditors generally and general principles of equity.

                  Section 6.16. Withholding Taxes; Information Reporting; Tax
Returns. The Trustee, as trustee of a grantor trust, shall exclude and withhold
from each distribution of principal, premium, if any, and interest and other
amounts due hereunder or under the Certificates any and all federal withholding
taxes applicable thereto as required by federal law. The Trustee agrees to act
as such withholding agent and, in connection therewith, whenever any present or
future taxes or similar charges are required to be withheld with respect to any
amounts payable in respect of the Certificates, to withhold such amounts and
timely pay the same to the appropriate authority in the name of and on behalf of
the Holders of the Certificates, that it will file any necessary withholding tax
returns or statements when due, and that, as promptly as possible after the
payment thereof, it will deliver to each Holder of a Certificate appropriate
documentation showing the payment thereof, together with such additional
documentary evidence as such Holders may reasonably request from time to time.
The Trustee agrees to file any other information reports and tax returns and
forms as it may be required to file relating to such withholding taxes and shall
otherwise file any other information reports as it may be

                                      -35-
<PAGE>

requested and directed to file under applicable law. The Trustee shall be
permitted to rely upon any properly completed certificate presented by a Holder
of Certificates claiming an exemption from or reduction of withholding taxes,
absent bad faith on the part of the Trustee. Each Certificateholder agrees to
indemnify (on an after-tax basis) and hold harmless the Trustee against any
United States withholding taxes and related interest and penalties which the
Trustee fails to withhold on payments to such Certificateholder as a result of
the invalidity of any certificate or form provided by such Certificateholder to
the Trustee. Any amount payable by a Certificateholder hereunder shall be paid
within 30 days after receipt by a Certificateholder of a written demand thereof.

                  Section 6.17. Trustee's Liens. The Trustee, in its individual
capacity, agrees that it will at its own cost and expense promptly take any
action as may be necessary to duly discharge and satisfy in full any mortgage,
pledge, lien, charge, encumbrance, security interest or claim ("Trustee's
Liens") on or with respect to the Trust Property which is either (i)
attributable to the Trustee in its individual capacity and which is unrelated to
the transactions contemplated by this Trust Agreement or the other Transaction
Documents, or (ii) which is attributable to the Trustee as trustee hereunder or
in its individual capacity and which arise out of acts or omissions which are
prohibited by this Trust Agreement.

                                  ARTICLE VII.

                                   THE COMPANY

                  Section 7.01. Maintenance of Corporate Existence. The Company,
at its own cost and expense, will do or cause to be done all things necessary to
preserve and keep in full force and effect its corporate existence, rights and
franchises, except as otherwise specifically permitted in Section 7.02;
provided, however, that the Company shall not be required to preserve any right
or franchise if the Company determines that the preservation thereof is no
longer desirable in the conduct of the business of the Company.

                  Section 7.02. Consolidation, Merger, Etc. (a) Each of the
Company and the Guarantor agrees that it shall not consolidate with or merge
into any other corporation under circumstances where the Company or the
Guarantor is not the surviving corporation or convey, transfer or lease
substantially all of its assets as an entirety to any Person (other than the
Guarantor) unless the corporation formed by such consolidation or into which the
Company or Guarantor is merged or the Person that acquires by conveyance,
transfer or lease substantially all of the assets of the Company or the
Guarantor, as the case may be, as an entirety shall be organized and validly
existing under the laws of the United States of America or any state thereof or
the District of Columbia, and such corporation or Person executes and delivers
to the Trustee an agreement in form and substance reasonably satisfactory to the
Trustee containing an assumption by such successor or transferee entity of the
due and punctual performance and observance of each covenant and condition of
this Trust Agreement.

                  (b) Upon any such consolidation, merger, conveyance, transfer
or lease, the successor or transferee entity shall succeed to, and be
substituted for, and may exercise every

                                      -36-
<PAGE>

right and power of, the Company or the Guarantor, as the case may be, under this
Trust Agreement with the same effect as if such successor or transferee entity
had been named as the Company or the Guarantor herein.

                  (c) Immediately after giving effect to such transaction, no
Event of Default or event which with notice or the passage of time or both would
be an Event of Default shall have occurred and be continuing.

                  (d) The Trustee may receive an Officer's Certificate and an
Opinion of Counsel of the Company or the Guarantor, as the case may be, as
conclusive evidence that any such consolidation, merger, conveyance, transfer or
lease, and any such assumption, complies with the provisions of this Section
7.02.

                                 ARTICLE VIII.

                CERTIFICATEHOLDERS' LISTS AND REPORTS BY TRUSTEE

                  Section 8.01. The Company to Furnish Trustee with Names and
Addresses of Certificateholders. The Company will furnish to the Trustee within
15 days after each Record Date with respect to a Scheduled Payment, and at such
other times as the Trustee may request in writing, within 30 days after receipt
by the Company of any such request, a list, in such form as the Trustee may
reasonably require, of all information in the possession or control of the
Company as to the names and addresses of the Holders of Certificates, in each
case as of a date not more than 15 days prior to the time such list is
furnished; provided, however, that so long as the Trustee is the sole Registrar,
no such list need be furnished; and provided further, however, that no such list
need be furnished for so long as a copy of the Register is being furnished to
the Trustee pursuant to Section 6.12(b).

                  Section 8.02. Preservation of Information; Communications to
Certificateholders. (a) The Trustee shall preserve, in as current a form as is
reasonably practicable, the names and addresses of the Holders of Certificates
contained in the most recent list furnished to the Trustee as provided in
Section 6.12(b) or Section 8.01, as the case may be, and the names and addresses
of Holders of Certificates received by the Trustee in its capacity as Registrar,
if so acting. The Trustee may destroy any list furnished to it as provided in
Section 6.12(b) or Section 8.01, as the case may be, upon receipt of a new list
so furnished.

                  (b) If three or more Holders of Certificates (such Holders
hereinafter referred to as "applicants") apply in writing to the Trustee, and
furnish to the Trustee reasonable proof that each such applicant has owned a
Certificate for a period of at least six months preceding the date of such
application, and such application states that the applicants desire to
communicate with other Holders of Certificates with respect to their rights
under this Trust Agreement or under the Certificates and is accompanied by a
copy of the form of proxy or other communication which such applicants propose
to transmit, then the Trustee shall, within five Business Days after the receipt
of such application, at its election, either:

                                      -37-
<PAGE>

                  (ii) afford such applicants access to the information
         preserved at the time by the Trustee in accordance with Section
         8.02(a); or

                  (iii) inform such applicants as to the approximate number of
         Holders of Certificates whose names and addresses appear in the
         information preserved at the time by the Trustee in accordance with
         Section 8.02(a), and as to the approximate cost of mailing to such
         Certificateholders the form of proxy or other communication, if any,
         specified in such application.

                  If the Trustee shall elect not to afford such applicants
access to such information, the Trustee shall, upon the written request of such
applicants, mail to each Certificateholder whose name and address appear in the
information preserved at the time by the Trustee in accordance with Section
8.02(a), a copy of the form of proxy or other communication which is specified
in such request, with reasonable promptness after a tender to the Trustee of the
material to be mailed and of payment, or provision for the payment, of the
reasonable expenses of mailing, unless within five Business Days after such
tender, the Trustee shall mail to such applicants, together with a copy of the
material to be mailed, a written statement to the effect that, in the opinion of
the Trustee, such mailing would be contrary to the best interests of the Holders
of Certificates or would be in violation of applicable law. Such written
statement shall specify the basis of such opinion. If the applicants shall
obtain a court order, after notice to the Trustee and opportunity for hearing,
so directing the Trustee, the Trustee shall mail copies of such material to all
such Certificateholders with reasonable promptness after the entry of such order
and the renewal of the applicants' tender.

                  (c) Every Holder of Certificates, by receiving and holding the
same, agrees with the Company and the Trustee that neither the Company nor the
Trustee shall be held accountable by reason of the disclosure of any such
information as to the names and addresses of the Holders of Certificates in
accordance with Section 8.02(b), regardless of the source from which such
information was derived, and that the Trustee shall not be held accountable by
reason of mailing any material pursuant to a request made under Section 8.02(b).

                  Section 8.03. Reports by the Company. The Company will:

                  (a) while any of the Certificates remain outstanding, make
available, upon request, to any seller of the Certificates or any beneficial
interest therein the information specified in Rule 144A(d)(4) under the
Securities Act unless such information is not required to be so furnished
pursuant to such Rule 144A(d)(4);

                  (b) file with the Trustee, within 30 days after the Guarantor
is required to file the same with the Commission, copies of the annual reports
and of the information, documents and other reports (or copies of such portions
of any of the foregoing as the Commission may from time to time by rules and
regulations prescribe) which the Guarantor may be required to file with the
Commission pursuant to Section 13 or Section 15(d) of the Securities Exchange
Act of 1934; or if the Guarantor is not required to file information, documents
or reports pursuant to either of said Sections, then it will file with the
Trustee and the Commission, in accordance with rules and regulations prescribed
from time to time by the Commission, such of the supplementary and

                                      -38-
<PAGE>

periodic information, documents and reports which may be required pursuant to
Section 13 of the Securities Exchange Act of 1934 in respect of a security
listed and registered on a national securities exchange as may be prescribed
from time to time in such rules and regulations.

                                  ARTICLE IX.

                          SUPPLEMENTAL TRUST AGREEMENTS

                  Section 9.01. Supplemental Trust Agreements Without Consent of
Certificateholders. Without the consent of the Holder of any Certificates, the
Company may, and the Trustee (subject to Section 9.03 and upon receipt of an
Officer's Certificate of the Company) shall, at any time and from time to time
enter into one or more agreements supplemental hereto, in form satisfactory to
the Trustee, for any of the following purposes so long as such agreement shall
not cause the Trust to cease to qualify as a "grantor trust" (within the meaning
of Subpart E, Part I, Subchapter J of the Code) for U.S. federal income tax
purposes:

                  (1) to evidence the succession of another corporation to the
         Company, and the assumption by any such successor of the obligations of
         the Company herein contained; or

                  (2) to add to the covenants of the Company, for the benefit of
         the Holders of the Certificates, or to surrender any right or power
         herein conferred upon the Company;

                  (3) to cure any ambiguity, to correct or supplement any
         provision herein which may be defective or inconsistent with any other
         provision herein or to make any other provisions with respect to
         matters or questions arising under this Trust Agreement as may be
         necessary or desirable; provided that any such action shall not
         adversely affect the interests of the Holders of the Certificates; or

                  (4) to evidence and provide for the acceptance of appointment
         under this Trust Agreement of a successor Trustee with respect to the
         Trust and to add or change any of the provisions of this Trust
         Agreement as shall be necessary to provide for or facilitate the
         administration of the Trust, provided that any such action shall not
         adversely affect the interests of the Holders of the Certificates.

                  Section 9.02. Supplemental Trust Agreements with Consent of
Certificateholders. With the consent of the Holders of Certificates evidencing
Fractional Undivided Interests aggregating not less than a majority in interest
in the Trust, by Act of said Holders delivered to the Company and the Trustee,
the Company may, and the Trustee (subject to Section 9.03) shall, enter into an
agreement or agreements supplemental hereto for the purpose of adding any
provisions to or changing in any manner or eliminating any of the provisions of
this Trust Agreement or of modifying in any manner the rights and obligations of
the Holders of the Certificates under this Trust Agreement; provided, however,
that no such supplemental agreement shall, without the consent of the Holder of
each Outstanding Certificate affected thereby:

                                      -39-
<PAGE>

                  (1) reduce in any manner the amount of, or delay the timing
         of, any receipt by the Trustee of payments on the Equipment Notes or
         distributions that are required to be made herein on any Certificate,
         or change any date of payment on any Certificate, or change the place
         of payment where, or the coin or currency in which, any Certificate is
         payable, or impair the right to institute suit for the enforcement of
         any such payment or distribution on or after the Regular Distribution
         Date or Special Distribution Date applicable thereto; or

                  (2) permit the disposition of any Equipment Note in the Trust
         Property except as permitted by this Trust Agreement, or otherwise
         deprive any Certificateholder of the benefit of the ownership of the
         Equipment Notes in the Trust; or

                  (3) reduce the percentage of the aggregate Fractional
         Undivided Interests of the Trust which is required for any such
         supplemental agreement, or reduce such percentage required for any
         waiver (of compliance with certain provisions of this Trust Agreement
         or certain defaults hereunder and their consequences) provided for in
         this Trust Agreement;

                  (4) modify any of the provisions of this Section or Section
         5.05, except to increase any such percentage or to provide that certain
         other provisions of this Trust Agreement cannot be modified or waived
         without the consent of the Holder of each Certificate affected thereby;
         or

                  (5) cause the Trust to cease to qualify as a "grantor trust"
         (within the meaning of Subpart E, Part I, Subchapter J of the Code) for
         U.S. federal income tax purposes.

                  It shall not be necessary for any Act of Certificateholders
under this Section to approve the particular form of any proposed supplemental
agreement, but it shall be sufficient if such Act shall approve the substance
thereof.

                  Section 9.03. Documents Affecting Immunity or Indemnity. If in
the opinion of the Trustee any document required to be executed by it pursuant
to the terms of Section 9.01 or 9.02 affects any interest, right, duty, immunity
or indemnity in favor of the Trustee under this Trust Agreement, the Trustee may
in its discretion decline to execute such document.

                  Section 9.04. Execution of Supplemental Trust Agreements. In
executing, or accepting the additional trusts created by, any supplemental
agreement permitted by this Article or the modifications thereby of the trusts
created by this Trust Agreement, the Trustee shall be entitled to receive, and
(subject to Section 6.01) shall be fully protected in relying upon, an Opinion
of Counsel stating that the execution of such supplemental agreement is
authorized or permitted by this Trust Agreement.

                  Section 9.05. Effect of Supplemental Trust Agreements. Upon
the execution of any supplemental agreement under this Article, this Trust
Agreement shall be modified in accordance therewith, and such supplemental
agreement shall form a part of this Trust Agreement for all purposes; and every
Holder of Certificates theretofore or thereafter authenticated and delivered
hereunder shall be bound thereby.

                                      -40-
<PAGE>

                  Section 9.06. Reference in Certificates to Supplemental Trust
Agreements. Certificates authenticated and delivered after the execution of any
supplemental agreement pursuant to this Article may bear a notation in form
approved by the Trustee as to any matter provided for in such supplemental
agreement; and, in such case, suitable notation may be made upon Outstanding
Certificates after proper presentation and demand.

                                   ARTICLE X.

                       AMENDMENTS TO TRANSACTION DOCUMENTS

                  Section 10.01. Amendments and Supplements to Transaction
Documents. In the event that the Trustee, as holder of any Equipment Note in
trust for the benefit of the Certificateholders, receives a request for a
consent to any amendment, modification, waiver or supplement under any
Indenture, the Trustee shall forthwith send a notice of such proposed amendment,
modification, waiver or supplement, to each Certificateholder registered on the
Register as of such date. The Trustee shall request from the Certificateholders
Directions as to (i) whether or not to direct the Indenture Trustee to take or
refrain from taking any action which a holder of such Equipment Note has the
option to direct, (ii) whether or not to give or execute any waivers, consents,
amendments, modifications or supplements as a holder of such Equipment Note, and
(iii) how to vote any Equipment Note if a vote has been called for with respect
thereto. Provided such a request for Certificateholder Direction shall have been
made, in directing any action or casting any vote or giving any consent as the
holder of any Equipment Note, the Trustee shall vote or consent with respect to
such Equipment Note in the same proportion as the Certificates were actually
voted by Acts of Holders delivered to the Trustee prior to two Business Days
before the Trustee directs such action or casts such vote or gives such consent.
Notwithstanding the foregoing, but subject to Section 5.04, in the case that an
Event of Default hereunder shall have occurred and be continuing, the Trustee
may, in its own discretion and at its own direction, consent and notify the
Indenture Trustee of such consent to any amendment, modification, waiver or
supplement under any Indenture. Any action under an Indenture which requires the
unanimous consent of all holders of the Equipment Notes outstanding under such
Indenture shall require the unanimous consent of the Certificateholders.

                  If in the opinion of the Trustee any document required to be
executed by it pursuant to the terms of this Section adversely affects any
interest, right, duty, immunity or indemnity in favor of the Trustee under this
Trust Agreement, the Trustee may in its discretion decline to execute such
document.

                                  ARTICLE XI.

                              TERMINATION OF TRUST

                  Section 11.01. Termination of the Trust. The respective
obligations and responsibilities of the Company and the Trustee created hereby
and the Trust created hereby shall terminate upon the distribution to all
Certificateholders of all amounts required to be

                                      -41-
<PAGE>

distributed to them pursuant to this Trust Agreement and the disposition of all
property held as part of the Trust Property; provided, however, that in no event
shall the Trust created hereby continue beyond the expiration of 21 years from
the death of the last survivor of the descendants of George Herbert Walker Bush,
former President of the United States, living on the date of this Trust
Agreement.

                  Notice of any termination, specifying the Regular Distribution
Date (or Special Distribution Date, as the case may be) upon which the
Certificateholders may surrender their Certificates to the Trustee for payment
of the final distribution and cancellation, shall be mailed promptly by the
Trustee to Certificateholders not earlier than the 60th day and not later than
the 20th day next preceding such final distribution specifying (A) the Regular
Distribution Date (or Special Distribution Date, as the case may be) upon which
final payment of the Certificates will be made upon presentation and surrender
of Certificates at the office or agency of the Trustee therein specified, (B)
the amount of any such final payment, and (C) that the Record Date otherwise
applicable to such Regular Distribution Date (or Special Distribution Date, as
the case may be) is not applicable, payments being made only upon presentation
and surrender of the Certificates at the office or agency of the Trustee therein
specified. The Trustee shall give such notice to the Registrar at the time such
notice is given to Certificateholders. Upon presentation and surrender of the
Certificates, the Trustee shall cause to be distributed to Certificateholders
amounts distributable on such Regular Distribution Date or Special Distribution
Date, as the case may be, pursuant to Section 4.02.

                  In the event that all of the Certificateholders shall not
surrender their Certificates for cancellation within six months after the date
specified in the above-mentioned written notice, the Trustee shall give a second
written notice to the remaining Certificateholders to surrender their
Certificates for cancellation and receive the final distribution with respect
thereto. In the event that any money held by the Trustee for the payment of
distributions on the Certificates shall remain unclaimed for two years (or such
lesser time as the Trustee shall be satisfied, after sixty days' notice from the
Company, is one month prior to the escheat period provided under applicable law)
after the final distribution date with respect thereto, the Trustee shall pay to
the Indenture Trustee the appropriate amount of money relating to the Indenture
Trustee and shall give written notice thereof to the Company.

                                  ARTICLE XII.

                            MISCELLANEOUS PROVISIONS

                  Section 12.01. Limitation on Rights of Certificateholders. The
death or incapacity of any Certificateholder shall not operate to terminate this
Trust Agreement or the Trust, nor entitle such Certificateholder's legal
representatives or heirs to claim an accounting or to take any action or
commence any proceeding in any court for a partition or winding up of the Trust,
nor otherwise affect the rights, obligations, and liabilities of the parties
hereto or any of them.

                  Section 12.02. Certificates Nonassessable and Fully Paid.
Certificateholders shall not be personally liable for obligations of the Trust.
The Fractional Undivided Interests

                                      -42-
<PAGE>

represented by the Certificates shall be nonassessable for any losses or
expenses of the Trust or for any reason whatsoever, and Certificates upon
authentication thereof by the Trustee pursuant to Section 3.02 are and shall be
deemed fully paid. No Certificateholder shall have any right (except as
expressly provided herein) to vote or in any manner otherwise control the
operation and management of the Trust Property, the Trust established hereunder,
or the obligations of the parties hereto, nor shall anything set forth herein,
or contained in the terms of the Certificates, be construed so as to constitute
the Certificateholders from time to time as partners or members of an
association.

                  Section 12.03. Notices. All demands, notices, and
communications hereunder shall be in writing, personally delivered or mailed by
certified mail return receipt requested, and shall be deemed to have been duly
given upon receipt, in the case of the Company and the Guarantor, at the
following address: Trinity Industries Leasing Company, 2525 Stemmons Freeway,
Dallas, Texas 75207, Attention: General Counsel, and in the case of the Trustee,
at the following address: Rodney Square North, 1100 North Market Street,
Wilmington, Delaware 19890, Attention: Corporate Trust Administration, or, in
each case, at such other address as shall be designated by such party in a
written notice to the other parties. Any notice required or permitted to be
given to a Certificateholder hereunder shall be mailed by first class mail,
postage prepaid, at the address of such Holder as shown in the Register. Any
notice so mailed within the time prescribed in this Trust Agreement shall be
conclusively presumed to have been duly given, whether or not the
Certificateholder receives such notice. The Trustee shall promptly furnish the
Company with a copy of each demand, notice or written communication received by
the Trustee hereunder from any Certificateholder or the Indenture Trustee.

                  Section 12.04. Governing Law. THIS TRUST AGREEMENT HAS BEEN
DELIVERED IN THE STATE OF NEW YORK AND TOGETHER WITH THE CERTIFICATES SHALL BE
GOVERNED BY AND CONSTRUED IN ACCORDANCE WITH THE LAWS OF THE STATE OF NEW YORK
AND THE OBLIGATIONS, RIGHTS AND REMEDIES OF THE PARTIES HEREUNDER SHALL BE
DETERMINED IN ACCORDANCE WITH SUCH LAWS.

                  Section 12.05. Severability of Provisions. If any one or more
of the covenants, agreements, provisions, or terms of this Trust Agreement shall
be for any reason whatsoever held invalid, then such covenants, agreements,
provisions, or terms shall be deemed severable from the remaining covenants,
agreements, provisions, or terms of this Trust Agreement and shall in no way
affect the validity or enforceability of the other provisions of this Trust
Agreement or the Trust, or of the Certificates or the rights of the Holders
thereof.

                  Section 12.06. Effect of Headings and Table of Contents. The
Article and Section headings herein and the Table of Contents are for
convenience only and shall not affect the construction hereof.

                  Section 12.07. Successors and Assigns. All covenants,
agreements, representations and warranties in this Trust Agreement by the
Trustee and the Company shall bind and, to the extent permitted hereby, shall
inure to the benefit of and be enforceable by their respective successors and
assigns, whether so expressed or not.

                                      -43-
<PAGE>

                  Section 12.08. Benefits of Trust Agreement. Nothing in this
Trust Agreement or in the Certificates, express or implied, shall give to any
Person, other than the parties hereto and their successors hereunder, and the
Holders of Certificates, any benefit or any legal or equitable right, remedy or
claim under this Trust Agreement.

                  Section 12.09. Legal Holidays. In any case where any Regular
Distribution Date or Special Distribution Date relating to any Certificate shall
not be a Business Day, then (notwithstanding any other provision of this Trust
Agreement) payment need not be made on such date, but may be made on the next
succeeding Business Day with the same force and effect as if made on such
Regular Distribution Date or Special Distribution Date, and no interest shall
accrue during the intervening period.

                  Section 12.10. Counterpart. For the purpose of facilitating
the execution of this Trust Agreement and for other purposes, this Trust
Agreement may be executed simultaneously in any number of counterparts, each of
which counterparts shall be deemed to be an original, and all of which
counterparts shall constitute but one and the same instrument.

                  Section 12.11. Tax Treatment. For United States federal income
tax purposes, the Equipment Notes shall be treated as debt obligations, and
interest and other income arising thereunder shall be treated as from sources
within the United States in accordance with United States federal income tax
principles and the Trust shall be treated as a "grantor trust" (within the
meaning of Subpart E, Part I, Subchapter J of the Code) so that each
Certificateholder will be treated as owning a pro rata undivided interest in the
Equipment Notes.

                  Section 12.12. No Partnership. All parties to this Trust
Agreement and each Certificateholder, by his acceptance of a Certificate,
specifically disavow any intent to form a partnership or joint venture for U.S.
federal income tax purposes or otherwise, and agree not to make any filings or
take any positions inconsistent with such intent.

                                      -44-
<PAGE>

                  IN WITNESS WHEREOF, the Company, the Guarantor and the Trustee
have caused this Trust Agreement to be duly executed by their respective
officers, all as of the day and year first above written.

                                            TRINITY INDUSTRIES LEASING COMPANY,
                                               Company

                                            By:
                                                -------------------------------
                                                Name:
                                                Title:

                                            TRINITY INDUSTRIES, INC.,
                                               Guarantor

                                            By:
                                                --------------------------------
                                                Name:
                                                Title:

                                            WILMINGTON TRUST COMPANY,
                                            Trustee

                                            By:
                                                --------------------------------
                                                Name:
                                                Title:

                                      -45-
<PAGE>
                                                                       EXHIBIT A

                              [FORM OF CERTIFICATE]

                       TRINITY INDUSTRIES LEASING COMPANY
                            2002-1 PASS THROUGH TRUST

THIS PASS THROUGH CERTIFICATE HAS NOT BEEN REGISTERED UNDER THE SECURITIES ACT
OF 1933, AS AMENDED, OR THE SECURITIES LAWS OF ANY STATE OR OTHER JURISDICTION.
NEITHER THIS PASS THROUGH CERTIFICATE NOR ANY INTEREST OR PARTICIPATION HEREIN
MAY BE OFFERED, SOLD, ASSIGNED, TRANSFERRED, PLEDGED, ENCUMBERED OR OTHERWISE
DISPOSED OF IN THE ABSENCE OF SUCH REGISTRATION OR AN APPLICABLE EXEMPTION
THEREFROM.

THE HOLDER OF THIS PASS THROUGH CERTIFICATE, BY ITS ACCEPTANCE HEREOF, AGREES
FOR THE BENEFIT OF THE ISSUER THAT (A) THIS PASS THROUGH CERTIFICATE MAY BE
OFFERED, SOLD, PLEDGED OR OTHERWISE TRANSFERRED ONLY (I) INSIDE THE UNITED
STATES TO A PERSON WHOM THE SELLER REASONABLY BELIEVES IS A QUALIFIED
INSTITUTIONAL BUYER (AS DEFINED IN RULE 144A UNDER THE SECURITIES ACT) IN A
TRANSACTION MEETING THE REQUIREMENTS OF RULE 144A, (II) OUTSIDE THE UNITED
STATES IN AN OFFSHORE TRANSACTION IN ACCORDANCE WITH RULE 904 UNDER THE
SECURITIES ACT, (III) PURSUANT TO AN EXEMPTION FROM REGISTRATION UNDER THE
SECURITIES ACT PROVIDED BY RULE 144 (IF AVAILABLE) OR (IV) PURSUANT TO AN
EFFECTIVE REGISTRATION STATEMENT UNDER THE SECURITIES ACT, IN EACH OF CASES (I)
THROUGH (IV) IN ACCORDANCE WITH ANY APPLICABLE SECURITIES LAWS OF ANY STATE OF
THE UNITED STATES, AND (B) THE HOLDER WILL, AND EACH SUBSEQUENT HOLDER IS
REQUIRED TO, NOTIFY ANY SUBSEQUENT PURCHASER OF THIS PASS THROUGH CERTIFICATE
FROM IT OF THE RESALE RESTRICTIONS REFERRED TO IN (A) ABOVE.

UNLESS THIS GLOBAL CERTIFICATE IS PRESENTED BY AN AUTHORIZED REPRESENTATIVE OF
THE DEPOSITORY TRUST COMPANY TO THE COMPANY OR ITS AGENT FOR REGISTRATION OF
TRANSFER, EXCHANGE OR PAYMENT, AND ANY NOTE ISSUED IS REGISTERED IN THE NAME OF
CEDE & CO. OR TO SUCH OTHER ENTITY AS IS REQUESTED BY AN AUTHORIZED
REPRESENTATIVE OF THE DEPOSITORY TRUST COMPANY OR SUCH OTHER REPRESENTATIVE OF
THE DEPOSITORY TRUST COMPANY OR SUCH OTHER NAME AS IS REQUESTED BY AN AUTHORIZED
REPRESENTATIVE OF THE DEPOSITORY TRUST COMPANY (AND ANY PAYMENT HEREON IS MADE
TO CEDE & CO. OR TO SUCH OTHER ENTITY AS IS REQUESTED BY AN AUTHORIZED
REPRESENTATIVE OF THE DEPOSITORY TRUST COMPANY), ANY TRANSFER, PLEDGE OR OTHER
USE HEREOF FOR VALUE OR OTHERWISE BY OR TO ANY PERSON IS WRONGFUL SINCE THE
REGISTERED OWNER HEREOF, CEDE & CO., HAS AN INTEREST HEREIN.

TRANSFERS OF THIS GLOBAL CERTIFICATE SHALL BE LIMITED TO TRANSFERS IN WHOLE, BUT
NOT IN PART, TO NOMINEES OF CEDE & CO. OR TO A SUCCESSOR THEREOF OR SUCH
SUCCESSOR'S NOMINEE AND TRANSFERS OF PORTIONS OF THIS GLOBAL NOTE SHALL BE
LIMITED TO TRANSFERS MADE IN ACCORDANCE WITH THE RESTRICTIONS SET FORTH IN
SECTION 3.07 OF THE TRUST AGREEMENT REFERRED TO HEREIN.

BY ITS ACQUISITION HEREOF, THE HOLDER REPRESENTS THAT EITHER (I) IT IS NOT (A)
AN "EMPLOYEE BENEFIT PLAN" SUBJECT TO TITLE I OF ERISA, (B) A PLAN SUBJECT TO
SECTION 4975 OF THE CODE, (C) AN ENTITY THE UNDERLYING ASSETS OF WHICH INCLUDE
THE ASSETS OF ANY

<PAGE>

EMPLOYEE BENEFIT PLAN SUBJECT TO TITLE I OF ERISA OR SECTION 4975 OF THE CODE OR
(D) A GOVERNMENTAL OR OTHER PLAN THAT IS SUBJECT TO ANY LAW THAT IS
SUBSTANTIALLY SIMILAR TO THE PROVISIONS OF SECTION 406 OF ERISA OR SECTION 4975
OF THE CODE, OR (II) THE PURCHASE AND HOLDING OF THIS CERTIFICATE OR INTEREST
THEREIN BY SUCH HOLDER WILL NOT RESULT IN A PROHIBITED TRANSACTION UNDER SECTION
406 OF ERISA, SECTION 4975 OF THE CODE OR ANY SUBSTANTIALLY SIMILAR LAW FOR
WHICH AN EXEMPTION IS NOT AVAILABLE.

                                       -2-
<PAGE>

                       TRINITY INDUSTRIES LEASING COMPANY
                            2002-1 PASS THROUGH TRUST

                               7.755% Pass Through
                           Certificate, Series 2002-1

                                 CUSIP
                                       ---------

              Final Expected Regular Distribution Date:
                                                        -----------

                  Evidencing a fractional undivided interest in
                     a trust, the property of which includes
                    certain equipment notes, each secured by
                            certain railcars owned by
                       Trinity Industries Leasing Company

Certificate No.                                  $_________ fractional Undivided
                                                 Interest representing
                                                 .000588235% of the Trust per
                                                 $1,000 face amount

                  THIS CERTIFIES THAT ____________, for value received, is the
registered owner of a $__________ (_____________ Dollars) (as such amount may be
increased or decreased from time to time as provided in the Agreement)
Fractional Undivided Interest in the Trinity Industries Leasing Company 2002-1
Pass Through Trust (the "Trust") created pursuant to a Pass Through Trust
Agreement dated as of February 15, 2002 (as amended from time to time, the
"Agreement"), among Trinity Industries Leasing Company, a corporation
incorporated under Delaware law (the "Company"), Trinity Industries, Inc., a
corporation incorporated under Delaware law (the "Guarantor") and Wilmington
Trust Company, as trustee (the "Trustee"), a summary of certain of the pertinent
provisions of which is set forth below. To the extent not otherwise defined
herein, the capitalized terms used herein have the meanings assigned to them in
the Agreement. This Certificate is one of the duly authorized Certificates
designated as "7.755% Pass Through Certificates, Series 2002-1" (herein called
the "Certificates"). This Certificate is issued under and is subject to the
terms, provisions, and conditions of the Agreement, to which Agreement the
Holder of this Certificate by virtue of the acceptance hereof assents and by
which such Holder is bound. The property of the Trust includes certain Equipment
Notes and certain funds received in connection therewith (the "Trust Property").
Each issue of Equipment Notes is secured by a security interest in railroad
rolling stock owned by the Company and fully and unconditionally guaranteed by
the Guarantor. Subject to and in accordance with the terms of the Agreement,
from funds then available to the Trustee, there will be distributed on each
February 15 and August 15 (each, a "Regular Distribution Date"), commencing on
August 15, 2002, to the Person in whose name this Certificate is registered at
the close of business on the day of the month which is 15 days preceding the
Regular Distribution Date, an amount in respect of the Scheduled Payments on the
Equipment Notes due on such Distribution Date, the receipt of which has been
confirmed by the Trustee, equal to the product of the percentage interest in the
Trust evidenced by this Certificate and an amount equal to the

                                       -3-
<PAGE>

sum of such Scheduled Payments so received. Subject to and in accordance with
the terms of the Agreement, in the event that Special Payments on the Equipment
Notes are received by the Trustee, from funds then available to the Trustee,
there shall be distributed on the applicable Special Distribution Date, to the
Person in whose name this Certificate is registered at the close of business on
the day of the month which is 15 days preceding the Special Distribution Date,
an amount in respect of such Special Payments on the Equipment Notes, the
receipt of which has been confirmed by the Trustee, equal to the product of the
percentage interest in the Trust evidenced by this Certificate and an amount
equal to the sum of such Special Payments so received. If a Regular Distribution
Date or Special Distribution Date is not a Business Day, distribution shall be
made on the immediately following Business Day and no additional interest shall
accrue. The Special Distribution Date shall be the day of the month determined
as provided in the Agreement. The Trustee shall mail notice of each Special
Payment and the Special Distribution Date therefor to the Holders of the
Certificates.

                  Distributions on this Certificate will be made by the Trustee
by check mailed to the Person entitled thereto, without the presentation or
surrender of this Certificate or the making of any notation hereon. Except as
otherwise provided in the Agreement and notwithstanding the above, the final
distribution on this Certificate will be made after notice mailed by the Trustee
of the pendency of such distribution and only upon presentation and surrender of
this Certificate at the office or agency of the Trustee specified in such
notice.

                  The Agreement provides that for United States federal income
tax purposes, interest and other income arising under the Equipment Notes shall
be treated as from sources within the United States and the Trust shall be
treated as a "grantor trust" (within the meaning of Subpart E, Part I,
Subchapter J of the Code) so that each Certificateholder will be treated as
owning a proportionate undivided interest in the Equipment Notes. Furthermore,
pursuant to the Agreement, by acceptance of a Certificate, each
Certificateholder specifically disavows any intent to form a partnership or
joint venture for U.S. federal income tax purposes or otherwise, and agrees not
to make any filings or take any positions inconsistent with such intent.

                  THIS CERTIFICATE SHALL BE GOVERNED BY AND CONSTRUED IN
ACCORDANCE WITH THE LAWS OF THE STATE OF NEW YORK.

                  Reference is hereby made to the further provisions of this
Certificate set forth on the reverse hereof, which further provisions shall for
all purposes have the same effect as if set forth at this place.

                  Unless the certificate of authentication hereon has been
executed by the Trustee, by manual signature, this Certificate shall not be
entitled to any benefit under the Agreement or be valid for any purpose.

                                      -4-
<PAGE>

                  IN WITNESS WHEREOF, the Trustee has caused this Certificate to
be duly executed.

                                   WILMINGTON TRUST COMPANY,
                                   not in its individual capacity but solely as
                                   Trustee of TRINITY INDUSTRIES LEASING COMPANY
                                   2002-1 PASS THROUGH TRUST,

                                   By:
                                       -----------------------------------------
                                       Name:
                                       Title:

                                      -5-
<PAGE>

              [FORM OF THE TRUSTEE'S CERTIFICATE OF AUTHENTICATION]

Dated:

                    This is one of the Certificates referred
                      to in the within-mentioned Agreement

                                   WILMINGTON TRUST COMPANY,
                                    as Trustee,

                                   By:
                                       -----------------------------------------
                                               Authorized Signatory

                            [Reverse of Certificate]

                  The Certificates do not represent a direct obligation of, or
an obligation guaranteed by, or an interest in, the Company or the Trustee or
any Affiliate thereof. The Certificates are limited in right of payment, all as
more specifically set forth on the face hereof and in the Agreement. All
payments or distributions made to Certificateholders under the Agreement shall
be made only from the Trust Property and only to the extent that the Trustee
shall have sufficient income or proceeds from the Trust Property to make such
payments in accordance with the terms of the Agreement. Each Holder of this
Certificate, by its acceptance hereof, agrees that it will look solely to the
income and proceeds from the Trust Property to the extent available for
distribution to such Holder as provided in the Agreement. This Certificate does
not purport to summarize the Agreement and reference is made to the Agreement
for information with respect to the interests, rights, benefits, obligations,
proceeds and duties evidenced hereby. A copy of the Agreement may be examined
during normal business hours at the principal office of the Trustee, and at such
other places, if any, designated by the Trustee, by any Certificateholder upon
request.

                  The Agreement permits, with certain exceptions therein
provided, the amendment thereof and the modification of the rights and
obligations of the Company and the rights of the Certificateholders under the
Agreement at any time by the Company and the Trustee with the consent of the
Holders of Certificates evidencing Fractional Undivided Interests aggregating
not less than a majority in interest in the Trust. Any such consent by the
Holder of this Certificate shall be conclusive and binding on such Holder and
upon all future Holders of this Certificate and of any Certificate issued upon
the transfer hereof or in exchange hereof or in lieu hereof whether or not
notation of such consent is made upon this Certificate. The Agreement also
permits the amendment thereof, in certain limited circumstances, without the
consent of the Holders of any of the Certificates.

<PAGE>

                  As provided in the Agreement and subject to certain
limitations therein set forth, the transfer of this Certificate is registrable
in the Register upon surrender of this Certificate for registration of transfer
at the offices or agencies maintained by the Trustee in its capacity as
Registrar, or by any successor Registrar, duly endorsed or accompanied by a
written instrument of transfer in form satisfactory to the Trustee and the
Registrar duly executed by the Holder hereof or such Holder's attorney duly
authorized in writing, and thereupon one or more new Certificates of authorized
denominations evidencing the same aggregate Fractional Undivided Interest in the
Trust will be issued to the designated transferee or transferees.

                  The Certificates are issuable only as registered Certificates
without coupons in minimum denominations of $100,000 Fractional Undivided
Interest and integral multiples of $1,000 in excess thereof except that one
Certificate may be in a denomination of less than $1,000. As provided in the
Agreement and subject to certain limitations therein set forth, Certificates are
exchangeable for new Certificates of authorized denominations evidencing the
same aggregate Fractional Undivided Interest in the Trust, as requested by the
Holder surrendering the same.

                  No service charge will be made for any such registration of
transfer or exchange, but the Trustee shall require payment of a sum sufficient
to cover any tax or governmental charge payable in connection therewith.

                  The Trustee, the Registrar, and any agent of the Trustee or
the Registrar may treat the person in whose name this Certificate is registered
as the owner hereof for all purposes, and neither the Trustee, the Registrar,
nor any such agent shall be affected by any notice to the contrary.

The obligations and responsibilities created by the Agreement and the Trust
created thereby shall terminate upon the distribution to Certificateholders of
all amounts required to be distributed to them pursuant to the Agreement and the
disposition of all property held as part of the Trust Property.

                                      -2-
<PAGE>

                                                                       EXHIBIT B

                                     FORM OF

                            LETTER OF REPRESENTATIONS

                                      B-1
<PAGE>

                                                                       EXHIBIT C
                                                                       to
                                                                       Trust
                                                                       Agreement

                 Form of Certificate for Unlegended Certificates

Wilmington Trust Company
[Address]                                                                 [DATE]
Attention:  Corporate Trust Administration

        Re: Trinity Industries Leasing Company 2002-1 Pass Through Trust
          7.755% 2002-1 Pass Through Certificates (the "Certificates")

Ladies and Gentlemen:

                  This letter relates to $ ____________ Fractional Undivided
Interest of Certificates represented by a Certificate (the "Legended
Certificate") which bears a legend outlining restrictions upon transfer of such
Legended Certificate. Pursuant to Section 3.01 of the Pass Through Trust
Agreement (the "Agreement") dated as of February 15, 2002 relating to the
Certificate, we hereby certify that we are (or we will hold such Certificate on
behalf of) a person outside the United States to whom the Certificates could be
transferred in accordance with Rule 904 of Regulation S promulgated under the
U.S. Securities Act of 1933, as amended. Accordingly, you are hereby requested
to exchange the legended certificate for an unlegended certificate representing
an identical principal amount of Certificates, all in the manner provided for in
the Agreement.

                  You and the Company are entitled to rely upon this letter and
are irrevocably authorized to produce this letter or a copy hereof to any
interested party in any administrative or legal proceedings or official inquiry
with respect to the matters covered hereby. Terms used in this certificate have
the meanings set forth in Regulation S.

                                               Very truly yours,
                                               [Name of Holder]

                                               By:
                                                   ----------------------------
                                                        Authorized Signature

                                      C-1

<PAGE>
                                                                       EXHIBIT D
                                                                              to
                                                                 Trust Agreement

                       Form of Certificate to Be Delivered
                          in Connection with Transfers
                            Pursuant to Regulation S

Wilmington Trust Company
[Address]                                                                 [DATE]
Attention:  Corporate Trust Administration

        Re: Trinity Industries Leasing Company 2002-1 Pass Through Trust
          7.755% 2002-1 Pass Through Certificates (the "Certificates")

Ladies and Gentlemen:

                  In connection with our proposed sale of $ _______ Fractional
Undivided Interest of the Certificates, we confirm that such sale has been
effected pursuant to and in accordance with Regulation S under the Securities
Act of 1933, as amended, and, accordingly, we represent that:

                  1. the offer of the Certificates was not made to a person in
         the United States;

                  2. at the time the buy order was originated, the transferee
         was outside the United States or we and any person acting on our behalf
         reasonably believed that the transferee was outside the United States;

                  3. no directed selling efforts have been made by us in the
         United States in contravention of the requirements of Rule 903(b) or
         Rule 904(b) of Regulation S, as applicable; and

                  4. the transaction is not part of a plan or scheme to evade
         the registration requirements of the U.S. Securities Act of 1933.

                  You and the Company are entitled to rely upon this letter and
are irrevocably authorized to produce this letter or a copy hereof to any
interested party in any administrative or legal proceedings or official inquiry
with respect to the matters covered hereby. Terms used in this certificate have
the meanings set forth in Regulation S.

                                               Very truly yours,

                                               [Name of Transferor]

                                               By:
                                                   ----------------------------
                                               Authorized Signature

                                      D-1
<PAGE>

                                                                       EXHIBIT E
                                                                              to
                                                                 Trust Agreement

                            [FORM OF TRANSFER NOTICE]

                  FOR VALUE RECEIVED the undersigned registered holder hereby
sell(s), assign(s) and transfer(s) unto

Insert Taxpayer Identification No.

--------------------------------------------------------------------------------
Please print or typewrite name and address including zip code of assignee

--------------------------------------------------------------------------------
the within Certificate and all rights thereunder, hereby irrevocably
constituting and appointing ______________________________________ attorney to
transfer said Certificate on the books of the Company with full power of
substitution in the premises.

                     [THE FOLLOWING PROVISION TO BE INCLUDED
                    ON ALL CERTIFICATES OTHER THAN UNLEGENDED
                       REGULATION S GLOBAL AND UNLEGENDED
                     REGULATION S CERTIFICATED CERTIFICATES]

In connection with any transfer of this Certificate occurring prior to the date
which is the end of the period referred to in Rule 144(k) under the Securities
Act, the undersigned confirms that without utilizing any general solicitation or
general advertising that:

                                   [Check One]

[ ](a)   this Certificate is being transferred in compliance with the
         exemption from registration under the Securities Act of 1933, as
         amended, provided by Rule 144A thereunder.

                                       or

[ ](b)   this Certificate is being transferred other than in accordance
         with (a) above and documents are being furnished which comply with the
         conditions of transfer set forth in this Certificate and the Trust
         Agreement.

If none of the foregoing boxes is checked, the Trustee or other Registrar shall
not be obligated to register this Certificate in the name of any Person other
than the Holder hereof unless and until the conditions to any such transfer of
registration set forth herein and in Section 3.07 of the Indenture shall have
been satisfied.

                                       E-1
<PAGE>

Date:
     ---------------             -----------------------------------------------
                                 NOTICE:  The signature to this assignment must
                                 correspond with the name as written upon the
                                 face of the within-mentioned instrument in
                                 every particular, without alteration or any
                                 change whatsoever.

TO BE COMPLETED BY PURCHASER IF (a) ABOVE IS CHECKED.

         The undersigned represents and warrants that it is purchasing this
Certificate for its own account or an account with respect to which it exercises
sole investment discretion and that it and any such account is a "qualified
institutional buyer" within the meaning of Rule 144A under the Securities Act of
1933, as amended, and is aware that the sale to it is being made in reliance on
Rule 144A and acknowledges that it has received such information regarding the
Company and/or the Trust as the undersigned has requested pursuant to Rule 144A
or has determined not to request such information and that it is aware that the
transferor is relying upon the undersigned's foregoing representations in order
to claim the exemption from registration provided by Rule 144A.

Dated:
      --------------             -----------------------------------------------
                                 NOTICE:  To be executed by an executive officer

                                      E-2

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