Document:

<PAGE>

                                                                     Exhibit 4.4

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

                        FIRST SUPPLEMENTAL LOAN AGREEMENT

                                     BETWEEN

                            CITY OF FORSYTH, MONTANA

                                       AND

                               AVISTA CORPORATION

                      ------------------------------------

                             Dated as of May 1, 2005

                      ------------------------------------

                                   Relating to
                                   $17,000,000
                            City of Forsyth, Montana
                    Pollution Control Revenue Refunding Bonds
                      (Avista Corporation Colstrip Project)
                                  Series 1999B
================================================================================

      Amending and Restating that certain Loan Agreement, dated as of September
1, 1999, between the City of Forsyth, Montana and Avista Corporation.

                                  Series 1999B First Supplemental Loan Agreement

<PAGE>

                                TABLE OF CONTENTS

<TABLE>
<CAPTION>
SECTION                                                                                                   PAGE
<S>                                                                                                       <C>
RECITALS................................................................................................    1

ARTICLE I    DEFINITIONS................................................................................    2

    Section 1.01.    Definitions Contained in the Original Loan Agreement and the
                     Indenture..........................................................................    2
    Section 1.02.    New Definitions....................................................................    2

ARTICLE II   REPRESENTATIONS AND WARRANTIES.............................................................    2

    Section 2.01.    Representations and Warranties of the Issuer.......................................    2
    Section 2.02.    Representations and Warranties of the Company......................................    3

ARTICLE III  AMENDMENT OF LOAN AGREEMENT................................................................    4

    Section 3.01.    Amendment and Restatement of the Original Loan Agreement...........................    4

ARTICLE IV   MISCELLANEOUS..............................................................................    5

    Section 4.01.    Execution of Counterparts..........................................................    5
    Section 4.02.    Effective Date Applicability of the Agreement......................................    5
    Section 4.03.    Governing Law......................................................................    5
    Section 4.04.    Severability.......................................................................    5

Testimonium.............................................................................................    6

Signatures and Seals....................................................................................    6

Consent of Trustee......................................................................................    8
</TABLE>

                                  Series 1999B First Supplemental Loan Agreement

                                       -i-
<PAGE>

      This FIRST SUPPLEMENTAL LOAN AGREEMENT, dated as of May 1, 2005 the
("First Supplemental Loan Agreement"), is between the CITY OF FORSYTH, MONTANA,
a political subdivision duly organized and existing under the Constitution and
laws of the State of Montana (the "Issuer"), and AVISTA CORPORATION, a
corporation duly organized under the laws of the State of Washington, and duly
qualified to conduct business in the State of Montana (the "Company").

                                    RECITALS:

      WHEREAS, the Issuer has previously issued its Pollution Control Revenue
Refunding Bonds (Avista Corporation Colstrip Project), Series 1999B (the
"Bonds"), in the aggregate principal amount of $17,000,000, pursuant to a Trust
Indenture, dated as of September 1, 1999 (the "Original Indenture"), as amended
and restated by a First Supplemental Trust Indenture, dated as of May 1, 2005
(the "First Supplemental Indenture," and the Original Indenture, as amended and
restated by the First Supplemental Indenture, the "Indenture"), each between the
Issuer and J.P. Morgan Trust Company, N.A. (successor in interest to Chase
Manhattan Bank and Trust Company, National Association), as trustee (the
"Trustee"); and

      WHEREAS, in connection with the issuance of the Bonds, the Issuer and the
Company entered into the Loan Agreement, dated as of September 1, 1999 (the
"Original Loan Agreement"); and

      WHEREAS, in order to comply with certain covenants made by the Company in
that certain Insurance Agreement, dated as of September 1, 1999, between the
Company and the Provider, the Company desires now to provide additional security
for the payment of the principal of, premium, if any, and interest on the Bonds
by delivering to the Trustee, for the account of the Issuer, the Company's first
mortgage bonds (the "First Mortgage Bonds") or other suitable security that may
be provided by the Company; and

      WHEREAS, Section 9.04 of the Original Loan Agreement provides that the
Original Loan Agreement may be amended by written agreement of the Issuer and
the Company and as otherwise provided in the Indenture; and

      WHEREAS, Section 12.05(e) of the Indenture provides that the Original Loan
Agreement may be amended without the consent or notice to the owners "...to
assign or pledge additional security for the Bonds..., which shall not
materially adversely affect the interest of the Owners of the Bonds;" and

      WHEREAS, the assignment and pledge of the First Mortgage Bonds and the
amendment and restatement of the Original Loan Agreement does not materially
adversely affect the interest of the owners of the Bonds; and

                                  Series 1999B First Supplemental Loan Agreement

<PAGE>

      WHEREAS, Section 12.05 of the Indenture requires the Consent of the
Provider (unless a Provider default shall have occurred and be continuing) and
permits the Trustee to consent to the modifying, altering, amending or
supplementing of the Agreement; and

      WHEREAS, the Provider and Trustee have consented to this First
Supplemental Loan Agreement; and

      WHEREAS, the Issuer and the Company desire to amend and restate the
Original Loan Agreement as provided herein; and

      WHEREAS, there has been delivered to the Issuer, the Provider and the
Trustee, the Favorable Opinion of Bond Counsel required by Section 12.05 of the
Indenture; and

      WHEREAS, the execution and delivery of this First Supplemental Loan
Agreement have been duly authorized by the governing body of the Issuer and all
things necessary to make this First Supplemental Loan Agreement a valid and
binding agreement have been done;

      NOW, THEREFORE, the parties hereto, intending to be legally bound hereby
and in consideration of the premises, do hereby agree as follows:

                                    ARTICLE I

                                   DEFINITIONS

      Section 1.01. Definitions Contained in the Original Loan Agreement and the
Indenture. The words and terms defined in the Original Loan Agreement and the
Indenture shall for all purposes of this First Supplemental Loan Agreement have
the meanings specified in such Original Loan Agreement or in the Indenture, as
applicable, when used herein, unless the context clearly requires otherwise.

      Section 1.02. New Definitions. Unless otherwise defined herein, the
following words and terms as used in this First Supplemental Loan Agreement
shall have the following meanings:

            "First Supplemental Loan Agreement" means this First Supplemental
Loan Agreement.

            "Loan Agreement" shall mean, the Original Loan Agreement, as amended
and restated by this First Supplemental Loan Agreement.

                                   ARTICLE II

                         REPRESENTATIONS AND WARRANTIES

      Section 2.01. Representations and Warranties of the Issuer. The Issuer
makes the following representations and warranties as the basis for the
undertakings on the part of the Company contained herein:

                                  Series 1999B First Supplemental Loan Agreement

                                       -2-
<PAGE>

            (a) The Issuer is a municipal corporation and political subdivision
      duly organized and existing under the Constitution and laws of the State;

            (b) The Bonds are currently Outstanding in the aggregate principal
      amount of $17,000,000.

            (c) The Issuer has the power under the Act to enter into this First
      Supplemental Loan Agreement, the First Supplemental Indenture and to
      perform and observe the agreements and covenants on its part contained
      herein and therein, and by proper action has duly authorized the execution
      and delivery of this First Supplemental Loan Agreement and the First
      Supplemental Indenture;

            (d) To the knowledge of the Issuer, the execution and delivery of
      this First Supplemental Loan Agreement and the First Supplemental
      Indenture by the Issuer do not, and consummation of the transactions
      contemplated hereby and thereby and fulfillment of the terms hereof and
      thereof by the Issuer will not, result in a breach of any of the terms or
      provisions of, or constitute a default under, any indenture, mortgage,
      deed of trust or other agreement or instrument to which the Issuer is now
      a party or by which it is now bound, or any order, rule or regulation
      applicable to the Issuer of any court or of any regulatory body or
      administrative agency or other governmental body having jurisdiction over
      the Issuer or over any of its properties, or any statute of any
      jurisdiction applicable to the Issuer;

            (e) No consent, approval, authorization or other order of any
      regulatory body or administrative agency or other governmental body is
      legally required for the Issuer's execution and delivery of this First
      Supplemental Loan Agreement or the First Supplemental Indenture;

            (f) The Original Loan Agreement has not been previously amended or
      supplemented and, as of the date hereof, is still in full force and
      effect;

            (g) Except as amended and restated by the First Supplemental
      Indenture, the Original Indenture has not previously been amended,
      supplemented or restated and is still in full force and effect; and

            (h) J.P. Morgan Trust Company, N.A., is the Trustee under the
      Indenture.

      Section 2.02. Representations and Warranties of the Company. The Company
makes the following representations and warranties as the basis for the
undertakings on the part of the Issuer contained herein;

            (a) The Company is a corporation duly organized and validly existing
      under the laws of the State of Washington and is duly qualified to conduct
      business in the State;

            (b) The Company has the requisite power to enter into this First
      Supplemental Loan Agreement and to perform and observe the agreements and
      covenants on its part

                                  Series 1999B First Supplemental Loan Agreement

                                       -3-
<PAGE>

      contained herein and by proper action has duly authorized the execution
      and delivery of this First Supplemental Loan Agreement;

            (c) Neither the execution and delivery of this First Supplemental
      Loan Agreement nor the fulfillment of or compliance with the terms and
      conditions of this First Supplemental Loan Agreement will result in a
      breach of or constitute a default under any of the terms, conditions or
      provisions of any restriction or any agreement or instrument to which the
      Company is now a party or by which it is bound, or constitute a default
      under any of the foregoing, or result in the creation or imposition of any
      lien, charge or encumbrance of any nature whatsoever upon any of the
      property or assets of the Company prohibited under the terms of any
      instrument;

            (d) No event has occurred and is continuing under the provisions of
      either the Original Loan Agreement, or to the knowledge of the Company,
      under the provisions of the Indenture, which event now constitutes, or
      with the lapse of time or the giving of notice, or both, would constitute
      an Event of Default under either the Loan Agreement or the Indenture;

            (e) Other than those consents, approvals or authorizations already
      obtained, no consent, approval, authorization or other order of any
      regulatory body or administrative agency or other governmental body is
      legally required for the Company's execution and delivery of this First
      Supplemental Loan Agreement;

            (f) The Original Loan Agreement has not been previously amended or
      supplemented and as of the date hereof is still in full force and effect;
      and

            (g) The Bonds are currently Outstanding in the aggregate principal
      amount of $17,000,000 and bear interest at a Term Interest Rate.

                                   ARTICLE III

                           AMENDMENT OF LOAN AGREEMENT

      Section 3.01. Amendment and Restatement of the Original Loan Agreement.
The Original Loan Agreement is hereby amended and restated to read as follows:

                                  Series 1999B First Supplemental Loan Agreement

                                       -4-
<PAGE>

                  [INSERT AMENDED AND RESTATED LOAN AGREEMENT]

                                  Series 1999B First Supplemental Loan Agreement

<PAGE>

                                   ARTICLE IV

                                  MISCELLANEOUS

      Section 4.01. Execution of Counterparts. This First Supplemental Loan
Agreement may be simultaneously executed in several counterparts, each of which
shall be an original and all of which shall constitute but one and the same
instrument.

      Section 4.02. Effective Date Applicability of the Agreement. The
provisions of this First Supplemental Loan Agreement shall become effective
immediately upon the execution and delivery hereof. Except as amended and
restated by this First Supplemental Loan Agreement, all of the provisions of the
Original Loan Agreement shall remain in full force and effect.

      Section 4.03. Governing Law. The laws of the State shall govern the
construction and enforcement of this First Supplemental Loan Agreement.

      Section 4.04. Severability. In the event any provision of this First
Supplemental Loan Agreement shall be held invalid or unenforceable by any court
of competent jurisdiction, such holding shall not invalidate or render
unenforceable any other provision hereof.

                                  Series 1999B First Supplemental Loan Agreement

                                       -5-
<PAGE>

      IN WITNESS WHEREOF, the parties hereto have caused this First Supplemental
Loan Agreement to be duly executed as of the day and year first above written.

                                            AVISTA CORPORATION

                                            By /s/ Diane Thoren
                                               -------------------------------
                                               Vice President and Treasurer

                                  Series 1999B First Supplemental Loan Agreement

                                       -6-
<PAGE>

                                            CITY OF FORSTYH, MONTANA

[SEAL]

                                            By /s/ Sandra Wright
                                               -------------------------------
                                               Mayor Pro-Tem

ATTEST:

By /s/ Doris Pinkerton
   --------------------------------
   City Clerk-Treasurer

                                  Series 1999B First Supplemental Loan Agreement

                                       -7-
<PAGE>

                               CONSENT OF TRUSTEE

      Responsive to Section 12.05 of the Trust Indenture, dated as of September
1, 1999, between the City of Forsyth, Montana (the "Issuer"), and J.P. Morgan
Trust Company, N.A. (successor in interest to Chase Manhattan Bank and Trust
Company, National Association), as trustee (the "Trustee"), the Trustee hereby
consents to the execution and delivery of the attached First Supplemental Loan
Agreement and the resultant amendment to and restatement of the Loan Agreement,
dated as of September 1, 1999, between the Issuer and Avista Corporation.

                                            J.P. MORGAN TRUST COMPANY, N.A.,
                                              as Trustee

                                            By /s/ Mary Jane Henson
                                               --------------------------------
                                               Vice President

                                  Series 1999B First Supplemental Loan Agreement

                                       -8-
<PAGE>

                               CONSENT OF PROVIDER

      Responsive to Section 12.05 of the Trust Indenture, dated as of September
1, 1999, between the City of Forsyth, Montana (the "Issuer"), and J.P. Morgan
Trust Company, N.A. (successor in interest to Chase Manhattan Bank and Trust
Company, National Association), as trustee, Ambac Assurance Corporation, as
Provider, hereby consents to the execution and delivery of the attached First
Supplemental Loan Agreement and the resultant amendment to and restatement of
the Loan Agreement, dated as of September 1, 1999, between the City of Forsyth,
Montana and Avista Corporation.

                                            AMBAC ASSURANCE CORPORATION

                                            By /s/ Dennis Pidherny
                                               -------------------------------
                                               Authorized Representative

                                  Series 1999B First Supplemental Loan Agreement

                                       -9-<PAGE>

                                                                     Exhibit 4.5

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

                       FIRST SUPPLEMENTAL TRUST INDENTURE

                                     BETWEEN

                            CITY OF FORSYTH, MONTANA

                                       AND

                        J.P. MORGAN TRUST COMPANY, N.A.,
        (successor in interest to Chase Manhattan Bank and Trust Company,
                        National Association) as Trustee

                         -------------------------------

                             Dated as of May 1, 2005

                         -------------------------------

                                   Relating to
                                   $17,000,000
                            City of Forsyth, Montana
                    Pollution Control Revenue Refunding Bonds
                      (Avista Corporation Colstrip Project)
                                  Series 1999B

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

      Amending and restating the Trust Indenture, dated as of September 1, 1999,
between the City of Forsyth, Montana and J.P. Morgan Trust Company, N.A.
(successor in interest to Chase Manhattan Bank and Trust Company, National
Association).

                                 Series 1999B First Supplemental Trust Indenture

<PAGE>

                                TABLE OF CONTENTS

<TABLE>
<CAPTION>
SECTION                                           HEADING                                                 PAGE
<S>                                                                                                       <C>
PARTIES.................................................................................................    1

Recitals................................................................................................    1

ARTICLE I                  DEFINITIONS..................................................................    2

       Section 1.01.       Definitions Contained in the Original Indenture..............................    2
       Section 1.02.       New Definitions..............................................................    2

ARTICLE II                 AMENDMENTS OF ORIGINAL INDENTURE.............................................    3

       Section 2.01.       Amendment and Restatement of the Original Indenture..........................    3

ARTICLE III                MISCELLANEOUS................................................................    4

       Section 3.01.       Trustee Representations......................................................    4
       Section 3.02.       Execution of Counterparts....................................................    4
       Section 3.03.       Effective Date; Original Indenture Remains Effective as Amended..............    4

Testimonium.............................................................................................    5

Signatures..............................................................................................    5

EXHIBIT A  --  CONSENT OF COMPANY

EXHIBIT B  --  CONSENT OF PROVIDER
</TABLE>

                                 Series 1999B First Supplemental Trust Indenture

                                      -i-
<PAGE>

                       FIRST SUPPLEMENTAL TRUST INDENTURE

      THIS FIRST SUPPLEMENTAL TRUST INDENTURE, dated as of May 1, 2005 (the
"First Supplemental Indenture"), amending and restating that certain Trust
Indenture, dated as of September 1, 1999 (the "Original Indenture"), each
between the CITY OF FORSYTH, MONTANA (the "Issuer"), a duly organized and
existing political subdivision of the State of Montana and J.P. MORGAN TRUST
COMPANY, N.A., (successor in interest to Chase Manhattan Bank and Trust Company,
National Association) a national banking association (the "Trustee"),

                                   WITNESSETH:

      WHEREAS, the Issuer has previously issued its Pollution Control Revenue
Refunding Bonds (Avista Corporation Colstrip Project), Series 1999B (the
"Bonds"), in the aggregate principal amount of $17,000,000, pursuant to the
Original Indenture; and

      WHEREAS, in order to comply with certain covenants made by Avista
Corporation (the "Company") in that certain Insurance Agreement, dated as of
September 1, 1999, between the Company and the Provider, the Company desires now
to provide additional security for the payment of the principal of, premium, if
any, and interest on the Bonds by delivering to the Trustee, for the account of
the Issuer, the Company's first mortgage bonds (the "First Mortgage Bonds") or
other suitable security that may be provided by the Company; and

      WHEREAS, the Issuer deems it necessary and desirable to enter into this
First Supplemental Indenture in order to amend and restate the Original
Indenture to provide for such First Mortgage Bonds to secure the Bonds and to
make other amendments to the Original Indenture; and

      WHEREAS, Section 12.01(b) of the Original Indenture provides that the
Issuer and the Trustee may, without the consent of the Owners of the Bonds,
enter into a Supplemental Indenture "...to assign or pledge additional security
for any of the Bonds...which in the judgment of the Trustee in not materially
adverse to the Owners of the Bonds;" and

      WHEREAS, the Favorable Opinion of Bond Counsel required by Section 12.01
of the Indenture has been delivered to the Issuer and the Trustee; and

      WHEREAS, the Consent of the Company, attached as Exhibit A, required by
Section 12.04 of the Original Indenture has been delivered to the Issuer and the
Trustee; and

      WHEREAS, the Consent of the Provider, attached as Exhibit B, required by
Section 12.04 of the Original Indenture has been delivered to the Issuer and the
Trustee; and

      WHEREAS, the Trustee has provided written notice of this First
Supplemental Indenture to Moody's, S&P, the Provider, the Remarketing Agent and
the Owners of all Outstanding Bonds, as provided in Section 12.01 of the
Original Indenture; and

                                 Series 1999B First Supplemental Trust Indenture

<PAGE>

      WHEREAS, in the judgment of the Trustee, the assignment and pledge of the
First Mortgage Bonds and the associated amendment and restatement of the
Original Indenture is not materially adverse to the Owners of the Bonds; and

      WHEREAS, the execution and delivery of this First Supplemental Indenture
has been duly authorized by the governing body of the Issuer and all things
necessary to make this First Supplemental Indenture a valid and binding
agreement have been done;

      NOW, THEREFORE, in consideration of the foregoing and of the mutual
covenants herein set forth, the parties hereto agree as follows:

                                    ARTICLE I

                                   DEFINITIONS

      Section 1.01. Definitions Contained in the Original Indenture. Except as
otherwise provided in this First Supplemental Indenture, words and terms that
are defined in the Original Indenture shall have the same meanings ascribed to
them therein when used herein, unless the context or use indicates a different
meaning or intent.

      Section 1.02. New Definitions. The following terms as used in this First
Supplemental Indenture shall have the following meanings:

            "First Supplemental Indenture" means this First Supplemental Trust
      Indenture, amending and restating the Original Indenture.

            "First Supplemental Loan Agreement" means that certain First
      Supplemental Loan Agreement, dated as of May 1, 2005, between the Issuer
      and the Company, amending and restating the Original Loan Agreement.

            "Indenture" means the Original Indenture, as amended and restated by
      this First Supplemental Indenture.

            "Original Indenture" means the Trust Indenture, dated as of
      September 1, 1999, between the Issuer and the Trustee, authorizing, among
      other things, the issuance of the Bonds.

            "Original Loan Agreement" means that certain Loan Agreement, dated
      as of September 1, 1999, between the Issuer and the Company.

            "Trustee" means J.P. Morgan Trust Company, N.A. (successor in
      interest to Chase Manhattan Bank and Trust Company, National Association).

                                 Series 1999B First Supplemental Trust Indenture

                                       -2-
<PAGE>

                                   ARTICLE II

                         AMENDMENT OF ORIGINAL INDENTURE

      Section 2.01. Amendment and Restatement of the Original Indenture. The
Original Indenture is hereby amended and restated to read as follows:

                                 Series 1999B First Supplemental Trust Indenture

                                       -3-
<PAGE>

                     [INSERT AMENDED AND RESTATED INDENTURE]

                                 Series 1999B First Supplemental Trust Indenture

<PAGE>

                                   ARTICLE III

                                  MISCELLANEOUS

      Section 3.01. Trustee Representations. With the exception of the First
Supplemental Loan Agreement, the Trustee hereby represents that it has not
previously entered into any amendments to the Original Indenture or previously
consented to any amendments to the Original Loan Agreement. The Trustee further
represents that, according to its records, $17,000,000 principal amount of the
Bonds are Outstanding.

      Section 3.02. Execution of Counterparts. This First Supplemental Indenture
may be executed in any number of counterparts, each of which, when so executed
and delivered, shall be an original and all of which shall constitute but one
and the same instrument.

      Section 3.03. Effective Date; Original Indenture Remains Effective as
Amended. The provisions of this First Supplemental Indenture shall become
effective immediately upon the execution and delivery hereof. This First
Supplemental Indenture and all terms and provisions herein contained shall form
a part of the Original Indenture as fully and with the same effect as if all
such terms and provisions had been set forth in the Original Indenture, and the
Original Indenture, as amended and restated hereby, remains in full force and
effect in accordance with the terms and provisions thereof.

      Section 3.04. No Recitals, et. Except for the recitals contained herein
expressly made by the Trustee, the recitals contained herein shall be taken as
the statements of the Issuer, and the Trustee assumes no responsibility for
their correctness. The Trustee makes no representations as to the validity or
sufficiency of this First Supplemental Indenture.

                            (Signature page follows.)

                                 Series 1999B First Supplemental Trust Indenture

                                       -4-
<PAGE>

      IN WITNESS WHEREOF, the parties hereto have caused this First Supplemental
Indenture to be duly executed as of the day and year first above written.

                                                CITY OF FORSYTH, MONTANA

                                                By /s/ Sandra Wright
                                                   ----------------------------
                                                   Mayor Pro-Tem

ATTEST AND COUNTERSIGN:

By /s/ Doris Pinkerton
   ----------------------------------
   City Clerk-Treasurer

[SEAL]

                                 Series 1999B First Supplemental Trust Indenture

                                       -5-
<PAGE>

                                                J.P. MORGAN TRUST COMPANY, N.A.,
                                                  as Trustee

                                                By /s/ Mary Jane Henson
                                                   ---------------------------
                                                   Vice President

                                 Series 1999B First Supplemental Trust Indenture

                                       -6-
<PAGE>

                                    EXHIBIT A

                               CONSENT OF COMPANY

      Responsive to Section 12.04 of the Trust Indenture, dated as of September
1, 1999 (the "Original Indenture"), between the City of Forsyth, Montana (the
"Issuer"), and J.P. Morgan Trust Company, N.A. (successor in interest to Chase
Manhattan Bank and Trust Company, National Association) (the "Trustee"), Avista
Corporation hereby consents to the execution and delivery of the attached First
Supplemental Trust Indenture, dated as of May 1, 2005, between the Issuer and
the Trustee, and the resultant amendment to and restatement of the Original
Indenture.

                                            AVISTA CORPORATION

                                            By /s/ Diane Thoren
                                               ---------------------------------
                                               Authorized Company Representative

                                 Series 1999B First Supplemental Trust Indenture

                                       A-1

<PAGE>

                                    EXHIBIT B

                               CONSENT OF PROVIDER

      Responsive to Section 12.04 of the Trust Indenture, dated as of September
1, 1999 (the "Original Indenture"), between the City of Forsyth, Montana (the
"Issuer"), and J.P. Morgan Trust Company, N.A. (successor in interest to Chase
Manhattan Bank and Trust Company, National Association) (the "Trustee"), Ambac
Assurance Corporation, as Provider, hereby consents to the execution and
delivery of the attached First Supplemental Trust Indenture, dated as of May 1,
2005, between the Issuer and the Trustee, and the resultant amendment to and
restatement of the Original Indenture.

                                                AMBAC ASSURANCE CORPORATION

                                                By /s/ Dennis Pidherny
                                                   ---------------------------
                                                   Authorized Representative

                                 Series 1999B First Supplemental Trust Indenture

                                       B-1

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