BOEING CAPITAL CORPORATION SENIOR MEDIUM-TERM NOTE

Exhibit 4(a)

[FACE OF NOTE]

CUSIP NO.:

REGISTERED

PRINCIPAL AMOUNT:

No. SNR/FXR -

BOEING CAPITAL CORPORATION

SENIOR MEDIUM-TERM NOTE, SERIES XII

(FIXED RATE)

Due from 9 Months to 30 Years from Date of Issue

If the registered owner of this Security (as indicated below) is The Depository Trust Company (the “ Depository ”) or a nominee of the Depository, this Security is a Global Security and the following two legends apply:

Unless this certificate is presented by an authorized representative of The Depository Trust Company (55 Water Street, New York, New York) to the issuer or its agent for registration of transfer, exchange or payment, and such certificate issued is registered in the name of CEDE & CO., or such other name as requested by an authorized representative of the Depository, 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.

Unless and until this certificate is exchanged in whole or in part for Notes in certificated form, this certificate may not be transferred except as a whole by the Depository to a nominee thereof or by a nominee thereof to the Depository or another nominee of the Depository or by the Depository or any such nominee to a successor of the Depository or a nominee of such successor.

IF APPLICABLE, THE “ TOTAL AMOUNT OF OID ”, “ YIELD TO MATURITY ” AND “ INITIAL ACCRUAL PERIOD OID ” (COMPUTED UNDER THE APPROXIMATE METHOD) BELOW WILL BE COMPLETED SOLELY FOR THE PURPOSES OF APPLYING THE UNITED STATES FEDERAL INCOME TAX ORIGINAL ISSUE DISCOUNT (“ OID ”) RULES.

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BOEING CAPITAL CORPORATION, a Delaware corporation (herein referred to as the “ Company ”, which term includes any successor corporation under the Indenture hereinafter referred to), for value received, hereby promises to pay to                     , or registered assigns, the principal sum of                      in the Specified Currency on the Stated Maturity Date shown above (except to the extent redeemed or repaid prior to the Stated Maturity Date) and to pay interest, if any, thereon at the Interest Rate shown above from the Original Issue Date shown above or from the most recent Interest Payment Date to which interest, if any, has been paid or duly provided for, on the Interest Payment Dates shown on the face hereof (each, an “ Interest Payment Date ”) until the principal hereof is paid or made available for payment and on the Stated Maturity Date, any Redemption Date or Repayment Date (such terms together are hereinafter referred to as the “ Maturity Date ” with respect to the principal repayable on such date); provided , however , that any payment of principal (or premium, if any) or interest, if any, to be made on any Interest Payment Date or on the Maturity Date that is not a Business Day (as defined below) shall be made on the next succeeding Business Day with the same force and effect as if made on such Interest Payment Date or the Maturity Date, as the case may be, and no additional interest, if any, shall accrue on the amount so payable as a result of such delayed payment. For purposes of this Security, unless otherwise specified on the face hereof, “ Business Day ” means any day, other than a Saturday or Sunday, that is neither a legal holiday nor a day on which commercial banks are authorized or required by law, regulation or executive order to close in The City of New York; provided, however , that, if this Security is denominated or payable in a Specified Currency, such day is also not a day on which commercial banks are authorized or required by law, regulation or executive order to close in the Principal Financial Center (as defined below) of the country issuing the Specified Currency or, if the Specified Currency is the euro, such day is also a day on which the Trans-European Automated Real-time Gross Settlement Express Transfer (TARGET) System is open. “Principal Financial Center” means the capital city of the country issuing the Specified Currency, except that with respect to U.S. dollars, Australian dollars, Canadian dollars, New Zealand dollars, and Swiss francs, the “ Principal Financial Center ” shall be The City of New York, Sydney, Toronto, Auckland, and Zurich, respectively.

Any interest hereon is accrued from, and including, the next preceding Interest Payment Date in respect of which interest, if any, has been paid or duly provided for (or from and including the Original Issue Date if no interest has been paid) to, but excluding, the succeeding Interest Payment Date or the Maturity Date, as the case may be. The interest, if any, so payable, and punctually paid or duly provided for, on any Interest Payment Date will, as provided in the Indenture (referred to on the reverse hereof), be paid to the person (the “ Holder ”) in whose name this Security (or one or more Predecessor Securities) is registered at the close of business on the 15 ^th calendar day (whether or not a Business Day), next preceding such Interest Payment Date (unless other Regular Record Dates are specified on the face hereof) (each, a “ Regular Record Date ”); provided , however , that, if this Security was issued between a Regular Record Date and the initial Interest Payment Date relating to such Regular Record Date, interest, if any, for the period beginning on the Original Issue Date and ending on such initial Interest Payment Date shall be paid on the Interest Payment Date following the next succeeding Regular Record Date to the Holder hereof on such next succeeding Regular Record Date; and provided further that interest, if any, payable on the Maturity Date will be payable to the person to whom the principal hereof shall be payable. Any such interest not so punctually paid or duly provided for on any Interest Payment Date other than the Maturity Date (“ Defaulted Interest ”) will forthwith cease to be payable to the Holder on such Regular Record Date and may either be paid to the

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person in whose name this Security (or one or more Predecessor Securities) is registered at the close of business on a special record date (the “ Special Record Date ”) for the payment of such Defaulted Interest to be fixed by the Trustee (referred to on the reverse hereof), notice whereof shall be given to the Holder of this Security not less than ten days prior to such Special Record Date, or may be paid at any time in any other lawful manner, all as more fully provided in the Indenture.

Unless otherwise specified above, all payments in respect of this Security will be made in U.S. dollars regardless of the Specified Currency shown above unless the Holder hereof makes the election described below. If the Specified Currency shown above is other than U.S. dollars, the Exchange Rate Agent (referred to on the reverse hereof) will arrange to convert all payments in respect hereof into U.S. dollars in the manner described on the reverse hereof; provided , however , that the Holder hereof may, if so indicated above, elect to receive all or a specified portion of any payment of principal, premium, if any, and/or interest in such Specified Currency by delivery of a written request to the corporate trust office of the Trustee in The City of New York on or prior to the applicable Regular Record Date or at least fifteen calendar days prior to the Maturity Date, as the case may be. Such request may be in writing (mailed or hand delivered) or by cable, telex or other form of facsimile transmission. The Holder hereof may elect to receive payment in such Specified Currency for all principal, premium, if any, and interest, if any, payments and need not file a separate election for each payment. Such election will remain in effect until revoked by written notice to the Trustee, but written notice of any such revocation must be received by the Trustee on or prior to the applicable Regular Record Date or at least fifteen calendar days prior to the Maturity Date, as the case may be.

Notwithstanding the foregoing, if the Specified Currency is other than U.S. dollars and the Company determines that such Specified Currency is not available for making payments in respect hereof due to the imposition of exchange controls or other circumstances beyond the Company’s control, the Company will be entitled to satisfy its obligations to the Holder hereof by making such payment in U.S. dollars on the basis of the noon buying rate in The City of New York for cable transfers of such Specified Currency as certified for customs purposes (or, if not so certified, as otherwise determined) by the Federal Reserve Bank of New York (the “ Market Exchange Rate ”) as computed by the Exchange Rate Agent on the second Business Day prior to such payment or, if not then available, on the basis of the most recently available Market Exchange Rate or as otherwise indicated on the face hereof. Any payment made in U.S. dollars under such circumstances shall not constitute an Event of Default (as defined in the Indenture).

In the event of an official redenomination of the Specified Currency, the obligations of the Company with respect to payments on this Security shall, in all cases, be deemed, immediately following such redenomination, to provide for payment of that amount of redenominated currency representing the amount of such obligations immediately before such redenomination. Except as set forth above, in no event shall any adjustment be made to any amount payable hereunder as a result of any change in the value of the Specified Currency shown above relative to any other currency due solely to fluctuations in exchange rates.

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Until this Security is paid in full or payment therefor in full is duly provided for, the Company will at all times maintain a Paying Agent (which Paying Agent may be the Trustee) in The City of New York (which, unless otherwise specified above, shall be the “ Place of Payment ”). The Company has initially appointed Deutsche Bank Trust Company Americas, at its corporate trust office in The City of New York, as Paying Agent.

If the Specified Currency shown above is U.S. dollars or the Specified Currency shown above is a Foreign Currency, and the Holder has not elected to exercise its option, if any, to receive payments in such Specified Currency, (i) payment of interest on this Security (other than on the Maturity Date) will be made in U.S. dollars by check mailed to the registered address of the Holder hereof, or at the Company’s option, by wire transfer to a bank account maintained by the Holder and (ii) the principal of this Security, premium, if any, together with the interest accrued and unpaid thereon, due at the Maturity Date shall be paid in U.S. dollars in immediately available funds upon surrender of this Security at the corporate trust office of the Trustee in The City of New York, or, at the Company’s option, by wire transfer to such bank account of immediately available funds in U.S. dollars to an account with a bank designated at least fifteen calendar days prior to the Maturity Date by the Holder hereof, provided such bank has appropriate facilities to make such payments and this Security is presented and surrendered at the office or agency designated by the Company for such purpose in the Borough of Manhattan, The City of New York, in time for the Trustee to make such payments in such funds in accordance with its normal procedures. If the Specified Currency shown above is a Foreign Currency and the Holder is entitled to elect, and has elected, to receive payments in such Specified Currency, (i) interest due on an Interest Payment Date other than the Maturity Date will be paid by check in the Specified Currency mailed to the registered address of the Holder hereof or, at our option, by wire transfer in the Specified Currency to a bank account maintained by the Holder in the country of the Specified Currency and (ii) the principal of, premium, if any, and interest on this Security due on the Maturity Date will be paid in the Specified Currency in immediately available funds upon surrender of this Security at the corporate trust office of the Trustee in The City of New York, or, at the Company’s option, by wire transfer to such bank account of immediately available funds in the Specified Currency to an account with a bank designated at least 15 calendar days prior to the Maturity Date by the Holder, provided , in the case of (ii), the particular bank has appropriate facilities to make these payments and this Security is presented and surrendered at the office or agency maintained by the Company for this purpose in the Borough of Manhattan, The City of New York, in time for the Trustee to make these payments in accordance with its normal procedures. The Company will pay any administrative costs imposed by banks in making payments in immediately available funds but, except as otherwise provided under Additional Amounts above, any tax, assessment or governmental charge imposed upon payments will be borne by the Holders of the Securities in respect of which such payments are made.

Unless otherwise specified on the face hereof, interest on this Security, if any, will be computed on the basis of a 360-day year of 12 30-day months.

REFERENCE IS HEREBY MADE TO THE FURTHER PROVISIONS OF THIS SECURITY SET FORTH ON THE REVERSE HEREOF, WHICH FURTHER PROVISIONS SHALL FOR ALL PURPOSES HAVE THE SAME EFFECT AS IF SET FORTH AT THIS PLACE.

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

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IN WITNESS WHEREOF, the Company has caused this instrument to be duly executed, manually or in facsimile, and an imprint or facsimile of its corporate seal to be imprinted hereon.