Document:

<PAGE>

                                                                     EXHIBIT 4.1

          NUMBER                                           SHARES
            C0

          INCORPORATED UNDER THE LAWS OF THE COMMONWEALTH OF VIRGINIA

                               CNB BANCORP, INC.

                     10,000,000 SHARES PAR VALUE $.01 EACH
                                 COMMON STOCK

                                                             See Reverse for
                                                             Certain Definitions

This is to Certify that ________________________________________ is the owner of

________________________________________________________________________________
            FULLY PAID AND NON-ASSESSABLE SHARES OF COMMON STOCK OF
                               CNB BANCORP, INC.

transferable on the books of the Corporation by the holder hereof in person or
by duly authorized Attorney upon surrender of this Certificate properly
endorsed.

Witness, the seal of the Corporation and the signatures of its duly authorized
officers.

Dated

_________________________                          _________________________
                SECRETARY                                          PRESIDENT

             (Copyright) 1999 CORPEX BANKNOTE CO., BAY SHORE, N.Y.
<PAGE>

     The following abbreviations, when used in the inscription on the face of
this certificate, shall be construed as though they were written out in full
according to applicable laws or regulations:

<TABLE>
<S>     <C>
TEN COM -as tenants in common               UNIF TRANSFERS MIN ACT-_______Custodian______
                                                                   (Cust)          (Minor)
TEN ENT -as tenants by the entireties       under Uniform Transfers to Minors
                                            Act___________________________________
JT TEN  -as joint tenants with right of                    (State)
         survivorship and not as tenants
         in common
         Additional abbreviations may also be used though not in the above list
</TABLE>

For value received ______________________ hereby sell, assign and transfer unto

PLEASE INSERT SOCIAL SECURITY OR OTHER
IDENTIFYING NUMBER OF ASSIGNEE
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   (PLEASE PRINT OR TYPEWRITE NAME AND ADDRESS INCLUDING POSTAL ZIP CODE OF
                                   ASSIGNEE)

_______________________________________________________________________________

_______________________________________________________________________________

__________________________________________________________________________Shares
represented by the within Certificate, and do hereby irrevocably constitute and
appoint

________________________________________________________________________Attorney
to transfer the said Shares on the books of the within named Corporation
with full power of substitution in the premises.

     Dated ___________________  _______

            In presence of      ____________________________________

________________________________

NOTICE: THE SIGNATURE TO THIS ASSIGNMENT MUST CORRESPOND WITH THE NAME AS
WRITTEN UPON THE FACE OF THE CERTIFICATE IN EVERY PARTICULAR WITHOUT ALTERATION
OR ENLARGEMENT OR ANY CHANGE WHATEVER.<PAGE>

                                                                   EXHIBIT 10.2

                               ESCROW AGREEMENT

     This Agreement ("Escrow Agreement") is made this _____ day of ___________
by and among CNB Bancorp, Inc. ("Bank"), and COMMUNITY BANKERS' BANK ("Escrow
Agent").

     Whereas, "Bank" has requested Community Bankers' Bank to serve as escrow
agent to invest escrow funds collected by "Bank" in connection with stock
subscriptions sold during the organization of "Bank".

     Whereas, Community Bankers' Bank has agreed to serve as escrow agent for
those funds.

     NOW THEREFORE, in consideration of the above recital, the mutual promises
set forth herein and other good and valuable consideration, the receipt and
sufficiency of which are hereby acknowledged the parties agree as follows:

     1.  ESCROW AGENT DUTIES AND RESPONSIBILITIES: Escrow Agent shall receive
         checks from CNB Bancorp, Inc. from time to time and send those checks
         for collection in the ordinary course of business. The proceeds of the
         check shall be invested in U.S. Government Securities (i.e., bills,
         bonds, and notes, but not repurchase agreements) ("Escrow Funds"). The
         funds shall be invested so that interest is earned and paid in
         accordance with the procedures prescribed by the underlying investment.

     2.  INTEREST EARNED: Interest earned on the Escrow Funds shall, for income
         tax reporting purposes, be reported to the Internal Revenue Service for
         the account of CNB Bancorp, Inc. The Address is for CNB Bancorp, Inc.
         is as follows: 70 E. Windsor Blvd., Suite B, Windsor, VA 23487. The
         Taxpayer Identification Number for CNB Bancorp, Inc. is # 54-2059214.

     3.  DISBURSEMENT OR DELIVERY OF DEPOSIT: The Escrow Agent shall deliver the
         Escrow Funds to "Bank" upon written notification by "Bank" and the
         Office of the Comptroller of the Currency that said funding may be
         released to "Bank". The Escrow Agent shall deliver the funds within 24
         hours of receiving said notices. If no such notices are received by
         December 31, 2002, then the Escrow Agent shall return the Escrow funds
         to "Bank" with interest thereon.

     4.  LIMITATIONS OF LIABILITY: The Escrow Agent shall not be liable for any
         loss or damage resulting from the financial status or insolvency of CNB
         Bancorp, Inc. or any subscriber of CNB Bancorp, Inc. or the default,
         error, act, or failure to act by CNB Bancorp, Inc. It is understood and
         agreed that the Escrow Agent's only duties and obligations hereunder
         are expressly set forth in this Escrow Agreement and no implied duties
         or obligations shall be read into this Escrow Agreement.

     5.  RELEASE UPON PAYMENT: Payment and/or delivery of the Escrow Funds and
         interest earned thereon in accordance with the terms, conditions and
         provisions of this Escrow Agreement shall fully and forever discharge
         and exonerate the Escrow Agent hereunder from any and all further
         liability or obligation of any nature or character, at law or in
         equity, to CNB Bancorp, Inc. or the Office of the Comptroller under
         this Escrow Agreement.
<PAGE>

     6.  SUBSTITUTION OR RESIGNATION OF ESCROW AGENT: CNB Bancorp, Inc. may
         appoint a substitute escrow agent hereunder in place of Escrow Agent by
         giving the Escrow Agent fifteen (15) days prior written notice of such
         substitution. Escrow Agent may resign upon thirty (30) days written
         notice to CNB Bancorp, Inc. If CNB Bancorp, Inc. does not appoint a
         substitute escrow agent within such thirty (30) day period, Escrow
         Agent may petition a court to name a successor.

     7.  NOTICE: Any notice shall be in writing and deemed duly given when
         delivered in person (with receipt) or sent by overnight courier, or by
         certified mail (postage prepaid, return receipt requested) to the
         parties as follows:

             as to CNB Bancorp, Inc.:
                                       CNB Bancorp, Inc.
                                       70 E. Windsor Blvd., Suite B
                                       Windsor, VA  23487
                                       Attn. Douglas A. Chesson, President & CEO

             as to Community Bankers' Bank:

                                       Community Bankers' Bank
                                       557 Southlake Boulevard
                                       P.O. Box 35626
                                       Richmond, VA  23235
                                       Attn. Eileen B. Bass, Investment Officer

     8.  MISCELLANEOUS: This Escrow Agreement shall inure to the benefit of and
         shall be binding upon the parties hereto in their respective heirs,
         personal representatives, successors, and assigns. This Escrow
         Agreement shall be construed, enforced and interpreted under the law of
         the Commonwealth of Virginia without regard to principles of conflict
         of laws. Time shall be of the essence for all purposes in construing
         and applying the provisions of this Escrow Agreement. This Escrow
         Agreement may be executed in counterparts, each of which shall be
         deemed an original, but all of which shall constitute one and the same
         instrument. This Escrow Agreement may not be modified or amended in any
         way except by writing signed by CNB Bancorp, Inc. and Community
         Bankers' Bank.

     IN WITNESS WHEREOF, the parties hereto have caused this Escrow Agreement to
     be duly executed as of the date set forth above.

     CNB Bancorp, Inc.       Community Bankers' Bank

     By:  ______________________      By:  ________________________

     Title :  ____________________    Title:  _______________________

     Date:   ____________________     Date:  _______________________<PAGE>

                         [LOGO] AVIATION SALES COMPANY
                                                                          RIGHTS
            SUBSCRIPTION CERTIFICATE FOR SHARES OF COMMON STOCK OF
                            AVIATION SALES COMPANY.
VOID IF NOT EXERCISED AT OR BEFORE 5:00 P.M. (NEW YORK TIME) FEBRUARY 20, 2002,
  THE EXPIRATION DATE. THIS SUBSCRIPTION CERTIFICATE IS TRANSFERABLE ONLY IN
CERTAIN LIMITED CIRCUMSTANCES. ANY SUBSCRIPTION FOR COMMON STOCK MADE HEREBY IS
                                 IRREVOCABLE.

                                    SHARES

           SUBSCRIPTION PRICE U.S. $.8325 PER SHARE OF COMMON STOCK.
      THIS SUBSCRIPTION CERTIFICATE MAY BE USED TO SUBSCRIBE FOR SHARES.
    FULL INSTRUCTIONS APPEAR ON THE BACK OF THIS SUBSCRIPTION CERTIFICATE.

REGISTERED OWNER

  The registered owner of this Subscription Certificate, named above, or
permitted assignee, is entitled to the number of rights (the "Rights") to
subscribe for shares of common stock (the Common Stock) of AVIATION SALES
COMPANY shown above, in the ratio of one share of Common Stock for each one
whole Right (the "Basic Subscription Privilege") and upon the terms and
conditions and at the price for each share of Common Stock specified in the
Prospectus dated (the "Prospectus"), which is incorporated herein by reference.
If any shares of Common Stock are not purchased by holders of Rights pursuant to
the Basic Subscription Privilege, any holder exercising its Basic Subscription
Privilege in full may purchase an additional number of available Shares, if so
specified in the subscription documents, subject to proration (the
"Oversubsription Privilege"). No fractional Rights or cash in lieu thereof will
be issued or paid. If the number of shares of Common Stock held on the Record
Date would result in the receipt of fractional Rights, the number of Rights
issued to such holder is being rounded up to the nearest whole number.       .

   If you subscribe for fewer than all the shares represented by your
Subscription Certificate, the Subscription Agent will issue a new Subscription
Certificate representing the balance of the unsubscribed Rights, provided that
the Subscription Agent has received your Subscription Certificate and payment
prior to 5:00 p.m., New York time, on February 20, 2002. No new Subscription
Certificate will be issued after such date. Rights holders should be aware that
if they choose to exercise or transfer only part of their Rights, they may not
receive a new Subscription Certificate in sufficient time to exercise the Rights
evidenced thereby.

   The Rights represented by this Subscription Certificate may be exercised by
duly completing Form 1 and may be transferred only in certain limited
circumstances, by duly completing Form 2. If the number of transferred Rights
would otherwise allow the purchase of a fractional share, the number of shares
which may be purchased must be rounded down to the nearest whole share (or any
lesser number of whole shares) that may be purchased with that number of Rights.
Rights holders are advised to review the Prospectus and instructions, copies of
which are available from Continental Stock Transfer & Trust Company, before
exercising their Rights.

IMPORTANT: Complete appropriate form on the reverse side

DATE:

                                                          AVIATION SALES COMPANY

CONTINENTAL STOCK TRANSFER       [CORPORATE SEAL]
& TRUST COMPANY,
AS RIGHTS AGENT
AND SUBSCRIPTION AGENT
BY:

AUTHORIZED OFFICER

                            /s/ Philip B. Schwartz        /s/ Roy T. Rirame, Jr.
                                Secretary                     Chairman

<PAGE>

                   (ON REVERSE OF SUBSCRIPTION CERTIFICATE)
                  PLEASE FILL IN ALL APPLICABLE INFORMATION

TO:  Subscription Agent                       Expiration Date: February 20, 2002
     Continental Stock Transfer
     Reorganization Department
     2 Broadway, 19th Floor
     New York, NY 10004

                                    FORM 1

EXERCISE AND SUBSCRIPTION: The undersigned hereby irrevocably exercises one or
more Rights to subscribe for shares of Common Stock as indicated below, on the
terms and subject to the conditions specified in the Prospectus, receipt of
which is hereby acknowledged.

  (a) Number of whole shares subscribed for pursuant to the Basic Subscription
      Privilege:

            Rights x $            = $            .
  ----------          -----------    ------------
           (One whole Right is required to subscribe for each share.)

  (b) Number of whole shares subscribed for pursuant to the Oversubscription
      Privilege:

            Rights x $            = $            .
  ----------          -----------    ------------

  (c) Total Subscription (sum of payment amounts on lines (a) and (b)) =
      $        total payment.*
       --------

METHOD OF PAYMENT (CHECK AND COMPLETE APPROPRIATE BOXES):

[_] Check, bank draft, or U.S. postal money order payable to "Continental Stock
    Transfer & Trust Company, as Subscription Agent" or

[_] Wire transfer directed to JP Morgan Chase, ABA No. 021 000 021, Acct. No.
    475-501012 for the benefit of Aviation Sales Company, Attention: Continental
    Stock Transfer & Trust Company, Attn: Roger Bernhammer

    (d) If the Rights being exercised pursuant to the Basic Subscription
        Privilege do not constitute all of the Rights represented by the
        Subscription Certificate (check only one).

[_] Deliver to the undersigned a new Subscription Certificate evidencing the
    remaining Rights to which the undersigned is entitled.

[_] Deliver a new Subscription Certificate in accordance with the undersigned's
    Form 2 instructions (which include any required signature guarantees.)

[_]  Do not deliver any new Subscription Certificate to me.

     (e) [_] Check here if Rights are being exercised pursuant to the Notice of
             Guaranteed Delivery delivered to the Subscription Agent prior to
             the date hereof and complete the following:

Name(s) of Registered Holder(s)
                               -------------------------------------------------

Window Ticket Number (if any)
                             ---------------------------------------------------

Date of Execution of Notice of Guaranteed Delivery
                                                  ------------------------------

Name of Institution Which Guaranteed Delivery
                                             -----------------------------------

* If the aggregate Subscription Price enclosed or transmitted is insufficient to
purchase the total number of shares included in lines (a) and (b), or if the
number of shares being subscribed for is not specified, the Rights holder
exercising this Subscription Certificate shall be deemed to have subscribed for
the maximum amount of shares that could be subscribed for upon payment of such
amount. If the number of shares to be subscribed for pursuant to the
Oversubscription Privilege is not specified and the amount enclosed or
transmitted exceeds the aggregate Subscription Price for all shares represented
by this Subscription Certificate (the "Subscription Excess"), the Rights holder
exercising this Subscription Certificate shall be deemed to have exercised the
Oversubscription Privilege to purchase, to the extent available, that number of
whole shares of Common Stock equal to the quotient obtained by dividing the
Subscription Excess by the Subscription Price, subject to proration as described
in the Prospectus. To the extent any portion of the aggregate Subscription Price
enclosed or transmitted remains after the foregoing procedures, such funds shall
be mailed to the subscriber without interest or deduction as soon as
practicable.

Subscriber's Signature                    Telephone No. (  )
                      ------------------                    ------------------

<PAGE>

                   (ON REVERSE OF SUBSCRIPTION CERTIFICATE)
                                    FORM 2

TO TRANSFER YOUR SUBSCRIPTION CERTIFICATE OR SOME OR ALL OF YOUR RIGHTS, OR TO
EXERCISE RIGHTS THROUGH YOUR BANK OR BROKER: Rights represented by this
Subscription Certificate are hereby assigned to (please print in full name and
address and Taxpayer Identification Number or Social Security Number of
permitted transferee):

Number of Rights being transferred:
                                   ---------------------------------------------

Name of Permitted Transferee and Taxpayer Indentification Number or Social
Security Number:
                 ---------------------------------------------------------------

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

Address:
        ------------------------------------------------------------------------

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

With respect to transferees other than banks or brokers the undersigned hereby
certifies that the above-named transferee is either (i) an immediate relative of
the holder of the Rights transferred hereby (i.e., a spouse, a child or a
parent); (ii) an entity wholly owned or controlled by the holder of the Rights
transferred hereby; (iii) if the holder of the Rights transferred hereby is a
corporation or partnership owned or controlled by one person or entity, the
person or entity that owns or controls the holder of such Rights; (iv) if the
holder is a trust, to a settlor, grantor, trustee or beneficiary of the trust or
to immediate relatives of such persons or an entity wholly owned or controlled
by such settlor, grantor, trustee or beneficiary; or (v) a transferee receiving
Rights pursuant to the operation of law as a result of the death or dissolution
of the Right holder. Aviation Sales Company or Continental Stock Transfer &
Trust Company may, at their option, request proper showing of the relationship
of the transferee to the transferor(s) and, if not satisfied, have the option of
not acknowledging or giving effect to the purported transfer.

Signature(s) of Transferor(s)
                             -------------------------------------

IMPORTANT: The signature(s) must correspond in every particular, without
           alteration, with the name(s) as printed on the face of this Rights
           Certificate.

Your signature must be medallion guaranteed by an Eligible Guarantor Institution
as defined in Rule 17Ad-15 of the Securities Exchange Act of 1934.

Signature:
          --------------------------------------
                 (Name of Bank or Firm)

Guaranteed By:
              ----------------------------------
               (Signature of Officer and Title)

PROCEEDS FROM THE SALE OF RIGHTS MAY BE SUBJECT TO WITHHOLDING OF U.S. TAXES
UNLESS THE SELLER'S CERTIFIED U.S. TAXPAYER IDENTIFICATION NUMBER (OR
CERTIFICATE REGARDING FOREIGN STATUS) IS ON FILE WITH THE SUBSCRIPTION AGENT AND
THE SELLER IS NOT OTHERWISE SUBJECT TO U.S. BACKUP WITHHOLDING.

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