Document:

Lockbox Processing Agreement

 Exhibit 10.4 
 SERIES 2011-2 LOCKBOX PROCESSING AGREEMENT 
 April 4,
2011 
 Regulus Group II LLC (“Processor”), AmeriCredit Financial Services, Inc.
(“AmeriCredit”) and Wells Fargo Bank, National Association, as Trustee (the “Trustee”), agree as follows: 
 1. Servicing Arrangements. AmeriCredit, as Servicer (the “Servicer”), AFS SenSub Corp., as Seller (“Seller”), AmeriCredit Automobile Receivables Trust 2011-2 (the
“Trust”) and the Trustee entered into a Sale and Servicing Agreement dated as of April 4, 2011 (as amended, supplemented and otherwise modified from time to time, the “Sale and Servicing Agreement”), relating
to the Receivables (as such term is defined in the Sale and Servicing Agreement), pursuant to which the Receivables were sold, transferred, assigned, or otherwise conveyed to the Trust. The Sale and Servicing Agreement contemplates the engagement of
a processor for lockbox services, and the Indenture contemplates that the Lockbox Account (as defined herein) will be assigned and pledged to the Trust Collateral Agent. The Sale and Servicing Agreement does not include specific terms for the
provision of data processing services of remittance items. Such terms are set forth in this Lockbox Processing Agreement (the “Agreement”). For avoidance of doubt, Regulus is not a depository institution. All capitalized terms used
herein and not otherwise defined herein shall have the meanings specified in the Sale and Servicing Agreement. 
 2.
Remittance Processing Services. In order to provide a means of collection of the Receivables which will allow the Trustee to receive the proceeds of the Receivables and related security without AmeriCredit or its Affiliates having access to
the funds, the parties hereto agree for the benefit of the Trustee that the processing services (the “Service(s)”) of Processor will be used for the collection and the deposit of remittances related to the Receivables and related
security. 
 3. Customer Remittances. Obligors of the Receivables will be directed by AmeriCredit to forward their
remittances to Processor at a post office address (the “Lockbox”) assigned by Processor. Processor, acting for the exclusive benefit of the Trustee, shall have unrestricted and exclusive access to the mail directed to this address.
AmeriCredit agrees to notify Processor thirty (30) days in advance of any change in Obligor remittance statements and/or mailing schedule. 
 4. Collection of Mail. Processor will collect mail from the Lockbox at regular intervals each business day, but not less than two times daily. 

5. Endorsement of Items. Processor will process, on behalf of AmeriCredit, checks and other deposited items that appear to be for
deposit to the credit of AmeriCredit or its Affiliates in accordance with Processor’s Lockbox Processing Agreement and Instructions, or other applicable agreement and related service terms (individually and collectively, the “Regulus
Documentation”), as appropriate. 

  
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 6. Credit of Funds to Account. 

(a) Processor will process the checks and other deposited items and credit the total amount to the account described below (the
“Lockbox Account”). The Lockbox Account will be established at JPMorgan Chase Bank, N.A. (ABA No.: 122100024) as account number 662633239. The Lockbox Account will be maintained and all banking functions will be provided by JPMorgan
Chase Bank, N.A. 
 (b) Unless otherwise directed by the Trustee, AmeriCredit agrees that all collected funds on deposit in the
Lockbox Account shall be transferred from the Lockbox Account within two Business Days by wire transfer in immediately available funds to the following account: Wells Fargo Bank, National Association, Account No. 0001038377 f/b/o 85475501; ABA
No. 121000248 (the “Collection Account”). 
 7. Regulus Documentation. This Agreement supplements,
rather than replaces, the Regulus Documentation, terms and conditions, and other standard documentation in effect from time to time with respect to the Lockbox or the services provided by Regulus in connection therewith. The Regulus Documentation
will continue to apply to the Lockbox and such services, and the respective rights, powers, duties, obligations, liabilities and responsibilities of the parties thereto and hereto, to the extent not expressly conflicting with the provisions of this
Agreement (however, in the event of any such conflict, the provisions of this Agreement shall control). Prior to issuing any instructions, the Trustee shall provide Processor with such documentation as Processor may reasonably request to establish
the identity and authority of the individuals issuing instructions on behalf of the Trustee. The Trustee may request the Processor to provide other services with respect to the Lockbox; however, if such services are not authorized or otherwise
covered under the Regulus Documentation, Processor’s decision to provide any such services shall be made in its sole discretion (including without limitation being subject to AmeriCredit and/or the Trustee executing the Regulus Documentation or
other documentation as Processor may require in connection therewith). 
 8. Processor’s General Duties.
Notwithstanding anything to the contrary in this Agreement: (i) Processor shall have only the duties and responsibilities with respect to the matters set forth herein as is expressly set forth in writing herein and shall not be deemed to be an
agent, bailee or fiduciary for any party hereto; (ii) Processor shall be fully protected in acting or refraining from acting in good faith without investigation on any notice, instruction or request purportedly furnished to it by AmeriCredit or
the Trustee in accordance with the terms hereof, in which case the parties hereto agree that Processor has no duty to make any further inquiry whatsoever; (iii) it is hereby acknowledged and agreed that Processor has no knowledge of (and is not
required to know) the terms and provisions of the Sale and Servicing Agreement referred to in Section 1 above or any other related documentation or whether any actions by the Trustee, AmeriCredit or any other person or entity are permitted or a
breach thereunder or consistent or inconsistent therewith; and (iv) Processor shall not be liable to any party hereto or any other person for any action or failure to act under or in connection with this Agreement except to the extent such
conduct constitutes its own willful misconduct or gross negligence. 
 9. Processing of Items. The provision of services
shall be governed by the Regulus Documentation or other applicable agreements and related service terms, as may be amended from time to time, subject to the prior written consent to any such amendments of a material nature by the Trustee and
AmeriCredit, which consents shall not be unreasonably withheld, conditioned or delayed. 

  
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 10. Trust Correspondence. Any envelopes collected from the Lockbox which contain
correspondence and other documents (including, but not limited to, certificates of title, tax receipts, insurance policy endorsements and any other documents or communications of or relating to the Receivables) will be sent to the Servicer at its
current address. Any enclosed payment(s), coupon(s) or check(s) will be processed and deposited by Processor in accordance with the provisions of the Agreement. 
 11. Confidentiality. Processor agrees that all information concerning the Obligors of the Receivables which comes into Processor’s possession pursuant to this Agreement, other than that which
is already known by Processor or to the general public, will be treated in a confidential manner. 
 12. Fees. Unless
otherwise agreed by Processor, AmeriCredit shall pay Processor the fees set forth for this Service in Processor’s most current Price List as in effect from time to time, plus additional fees for the performance of services beyond the terms of
this Agreement, or resulting from increased expenses incurred by the failure of AmeriCredit to furnish within a reasonable period of time following a request by Processor, data in a form acceptable to Processor. Processor shall look first to
AmeriCredit for payment of such fees. If AmeriCredit fails to pay Processor within thirty (30) days of receipt of invoice but in any event no later than forty-five (45) days from the date of the invoice, Processor will notify the Trustee
in writing as soon as practicable and provide to the Trustee a copy of such unpaid invoice. Subject to rights to terminate this Agreement pursuant to Section 17, Processor will continue to perform its services under this Agreement and the
amount reflected in such invoice will be paid to Processor by the Trustee out of funds in the Collection Account on the next Distribution Date (as defined below), which follows by at least three Business Days the date of giving such notice to the
Trustee. Any fees unpaid after such date will be considered unpaid fees. “Distribution Date” means the fifteenth day of the following calendar month, or, if such day is not a Business Day, the immediately following Business Day.

 13. Processor’s Liability for Nonperformance. In performing the Services, Processor will exercise ordinary care
and act in good faith. Processor shall be deemed to have exercised ordinary care if its action or failure to act is in conformity with general information technology processing standards. Processor’s liability relating to its or its
employees’, officers’ or agents’ performance or failure to perform hereunder, or for any other action or inaction of Processor, or its employees, officers or agents, shall be limited exclusively to the lesser of (i) any direct
losses which are caused by the failure of Processor, its employees, officers or agents to exercise reasonable care and/or act in good faith, and (ii) the face amount of any item, check, payment or other funds lost or mishandled by the action or
inaction of Processor. Under no circumstances will Processor be liable for any general, indirect, special, incidental, punitive or consequential damages or for damages caused, in whole or in part, by the action or inaction of AmeriCredit or the
Trustee, whether or not such action or inaction constitutes negligence. Processor will not be liable for any damage, loss, liability or delay caused by accidents, strikes, fire, flood, war, riot, equipment breakdown, electrical or mechanical
failure, acts of God or any cause which is reasonably unavoidable or beyond its reasonable control. AmeriCredit agrees that the fees charged by Processor for the performance of this Service shall be deemed to have been

  
 3 

 
established in contemplation of these limitations on Processor’s liability. In addition, AmeriCredit agrees to indemnify and hold Processor harmless from all liability on the part of
Processor under this Section 13 except such liability as is attributable to the gross negligence of Processor. 
 14.
Indemnification by AmeriCredit. AmeriCredit agrees to indemnify, defend and hold Processor harmless from and against any and all damage, loss, cost, expense or liability of any kind, including, without limitation, reasonable attorneys’
fees and court costs, which results, directly or indirectly, in whole or in part, from any negligence and willful misconduct or infidelity of AmeriCredit or any agent or employee of AmeriCredit, incurred in connection with this Agreement or the
Lockbox or any interpleader proceeding relating thereto or from Processor acting upon information furnished by AmeriCredit under this Agreement. AmeriCredit will remain liable for all indemnification under this Section 14 after its removal
and/or resignation as Servicer. 
 15. Other Agreements. Processor shall not be bound by any agreement between any of the
other parties hereto irrespective of whether Processor has knowledge of the existence of any such agreement or the terms and provisions thereof. 
 16. Records. This Agreement and the performance by Processor of the Services hereunder shall not relieve Processor of any obligation imposed by law or contract regarding the maintenance of records.

 17. Amendment and Termination. This Agreement may only be amended in writing signed by all parties to this Agreement.
AmeriCredit or Trustee may immediately terminate this Agreement for cause, provided, however, that a similar agreement has been executed with a successor processor reasonably acceptable to the Trustee or the Trustee has consented to such
termination. The Trustee may immediately terminate this Agreement and shall do so upon written notice to the other parties hereto. Otherwise, any party may terminate this Agreement on sixty (60) days’ prior written notice to the others;
provided, however, that AmeriCredit shall promptly notify the Trustee of receipt of any such notice and shall arrange for alternative lockbox processing services satisfactory to the Trustee prior to the termination of the Services. Upon any
termination of the Agreement, (a) Processor will close the Lockbox and (b) Processor will process all mail addressed to the Lockbox in the manner instructed by AmeriCredit in accordance with the Regulus Documentation for a period of at
least ninety (90) days after the termination date, unless arranged otherwise between AmeriCredit and Processor. After any termination, Processor’s fees with respect to the Services it performs during such period shall be consistent with
such fees at the time of such termination. 
 18. Successor Servicer. Each of Processor and the Trustee agrees that if
the Servicer has been terminated or resigns as Servicer, this Agreement shall not thereupon terminate and the successor servicer appointed pursuant to the Sale and Servicing Agreement shall succeed, except as otherwise provided herein, to all
rights, benefits, duties and obligations of the Servicer hereunder. Prior to the termination or resignation of the Trustee or the Servicer, the Trustee or the Servicer, respectively, shall provide notice to Processor in accordance with the terms and
conditions to which each of the Trustee or the Servicer, respectively, is itself entitled upon termination or resignation. 

  
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 19. Successor Processor. Any company or national banking association into which
Processor may be merged or converted or with which it may be consolidated, or any company or national banking association resulting from any merger, conversion or consolidation to which it shall be a party or any company or national association to
which Processor may sell or transfer all or substantially all of its business (provided any such company or national banking association shall be a company organized under the laws of any state of the United States or a national banking association
and shall be eligible to perform all of the duties imposed upon it by this Agreement) shall be the successor to Processor hereunder without the execution or filing of any document or any further act by any of the parties to this Agreement; provided,
however, that Processor notify the Trustee and AmeriCredit of any such merger, conversion or consolidation within 30 days of its occurrence. 
 20. Governing Law. This Agreement shall be governed by the laws of the State of Texas. All parties hereby waive all rights to a trial by jury in any action or proceeding relating to Lockbox or this
Agreement. 
 21. Notices. All written notices required by this Agreement shall be delivered or mailed to the other
parties at the addresses set forth below or to such other address as a party may specify in writing. 
  

			
	Processor:	  	 Regulus Group II LLC
 2012
Corporate Lane, Suite 108
 Naperville, IL 60563
 Attention: President & CEO
  
 With a copy to:
  
 Rosensteel
Law
 90 Park Avenue, 17th Floor
 New
York, New York 10016
 Attention: Edward M. Rosensteel, Esq.

		
	AmeriCredit:	  	 AmeriCredit Financial Services, Inc.
 801 Cherry Street, Suite 3500
 Fort Worth, Texas 76102

Attention: Chief Financial Officer

		
	Trustee:	  	 Wells Fargo Bank, National Association
 Sixth Street and Marquette Avenue
 MAC N9311-161

Minneapolis, Minnesota 55479
 Attention:
AmeriCredit Automobile Receivables Trust 2011-2

 22. Bankruptcy. Processor hereby covenants and agrees
that, prior to the date which is one year and one day after the payment in full of the Notes and all amounts owed under the Indenture and the Sale and Servicing Agreement, Processor will not institute against or join with any other person in
instituting against the Trust or the Seller, any proceeding or file any petition against the Trust or the Seller under any bankruptcy, insolvency or similar law for the 

  
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relief or aid of debtors (including, without limitation, Title 11 of the United States Code or any amendment thereto), seeking the dissolution, liquidation, arrangement, reorganization or similar
relief of the Trust or the Seller or the appointment of a receiver, trustee, custodian or liquidator of the Trust or the Seller, or issue any writ, order, judgment warrant of attachment, execution or similar process against a substantial part of the
property, assets or business of the Trust or the Seller. This covenant shall survive the termination of this Agreement. 

[Remainder of Page Intentionally Left Blank] 

  
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	 PROCESSOR:
  

REGULUS GROUP II LLC
	 		 	 AMERICREDIT:
  

AMERICREDIT FINANCIAL SERVICES, INC.

	 	 
					
	By:	 	  
	 		 	By:	 	  

		 	Name:	 		 		 	Name:
		 	Title:	 		 		 	Title:
			
	  
 TRUSTEE:
	 		 	
			
	 WELLS FARGO BANK,

NATIONAL ASSOCIATION,
 as Trustee
	 		 	
					
	By:	 	  
	 		 		 	
		 	Name:	 		 		 	
		 	Title:	 		 		 	

 [Series 2011-2 Lockbox Processing Agreement]Second Supplemental Senior Notes Indenture

 Exhibit 4.10 
 Second Supplemental Senior Notes Indenture (this “Supplemental Indenture”), dated as of April 8, 2011 among Hawker Beechcraft Defense Company, LLC, a Delaware limited liability
company, Hawker Beechcraft Holding, Inc., a Kansas corporation (each a “Guaranteeing Subsidiary” and together, the “Guaranteeing Subsidiaries”), Hawker Beechcraft Acquisition Company LLC, a Delaware limited
liability company (the “Issuer”), Hawker Beechcraft Notes Company, a Delaware corporation (the “Co-Issuer” and, together with the Issuer, the “Company”), and Deutsche Bank National Trust Company, as
trustee (the “Trustee”). 
 W I T N E S S E T H 

WHEREAS, each of the Company and the Guarantors (as defined in the Indenture referred to below) has heretofore executed and delivered to
the Trustee an Indenture, dated as of March 26, 2007, as supplemented by the First Supplemental Indenture, dated as of June 30, 2008 (the “Indenture”), providing for the issuance of an unlimited aggregate principal amount
of 8.500% Senior Fixed Rate Notes due 2015 and 8.875% / 9.625% Senior PIK Election Notes due 2015 (together, the “Senior Notes”); 
 WHEREAS, the Indenture provides that under certain circumstances the Guaranteeing Subsidiaries shall execute and deliver to the Trustee a supplemental indenture pursuant to which each Guaranteeing
Subsidiary shall unconditionally guarantee all of the Company’s Obligations under the Senior Notes and the Indenture on the terms and conditions set forth herein and under the Indenture (the “Guarantee”); and 

WHEREAS, pursuant to Section 9.01 of the Indenture, the Trustee is authorized to execute and deliver this Supplemental Indenture.

 NOW THEREFORE, in consideration of the foregoing and for other good and valuable consideration, the receipt of which is
hereby acknowledged, the parties mutually covenant and agree for the equal and ratable benefit of the Holders of the Senior Notes as follows: 
 (1) Capitalized Terms. Capitalized terms used herein without definition shall have the meanings assigned to them in the Indenture. 

(2) Agreement to Guarantee. Each Guaranteeing Subsidiary hereby agrees as follows: 

(a) Along with all Guarantors named in the Indenture, to jointly and severally unconditionally guarantee to each Holder of a Senior Note
authenticated and delivered by the Trustee and to the Trustee and its successors and assigns, irrespective of the validity and enforceability of the Indenture, the Senior Notes or the obligations of the Company hereunder or thereunder, that:

 (i) the principal of and interest, premium and Special Interest, if any, on the Senior Notes will be promptly paid in full
when due, whether at maturity, by acceleration, redemption or otherwise, and interest on the overdue principal of and interest on the Senior Notes, if any, if lawful, and all other obligations of the Company to the Holders or the Trustee hereunder
or thereunder will be promptly paid in full or performed, all in accordance with the terms hereof and thereof; and 

 (ii) in case of any extension of time of payment or renewal of any Senior Notes or any of
such other obligations, that same will be promptly paid in full when due or performed in accordance with the terms of the extension or renewal, whether at stated maturity, by acceleration or otherwise. Failing payment when due of any amount so
guaranteed or any performance so guaranteed for whatever reason, the Guarantors and each Guaranteeing Subsidiary shall be jointly and severally obligated to pay the same immediately. This is a guarantee of payment and not a guarantee of collection.

 (b) The obligations hereunder shall be unconditional, irrespective of the validity, regularity or enforceability of the
Senior Notes or the Indenture, the absence of any action to enforce the same, any waiver or consent by any Holder of the Senior Notes with respect to any provisions hereof or thereof, the recovery of any judgment against the Company, any action to
enforce the same or any other circumstance which might otherwise constitute a legal or equitable discharge or defense of a guarantor. 
 (c) The following is hereby waived: diligence, presentment, demand of payment, filing of claims with a court in the event of insolvency or bankruptcy of the Company, any right to require a proceeding
first against the Company, protest, notice and all demands whatsoever. 
 (d) This Guarantee shall not be discharged except by
complete performance of the obligations contained in the Senior Notes, the Indenture and this Supplemental Indenture, and each Guaranteeing Subsidiary accepts all obligations of a Guarantor under the Indenture. 

(e) If any Holder or the Trustee is required by any court or otherwise to return to the Company, the Guarantors (including each
Guaranteeing Subsidiary), or any custodian, trustee, liquidator or other similar official acting in relation to either the Company or the Guarantors, any amount paid either to the Trustee or such Holder, this Guarantee, to the extent theretofore
discharged, shall be reinstated in full force and effect. 
 (f) The Guaranteeing Subsidiaries shall not be entitled to any
right of subrogation in relation to the Holders in respect of any obligations guaranteed hereby until payment in full of all obligations guaranteed hereby. 
 (g) As between a Guaranteeing Subsidiary, on the one hand, and the Holders and the Trustee, on the other hand, (x) the maturity of the obligations guaranteed hereby may be accelerated as provided in
Article 6 of the Indenture for the purposes of this Guarantee, notwithstanding any stay, injunction or other prohibition preventing such acceleration in respect of the obligations guaranteed hereby, and (y) in the event of any declaration of
acceleration of such obligations as provided in Article 6 of the Indenture, such obligations (whether or not due and payable) shall forthwith become due and payable by such Guaranteeing Subsidiary for the purpose of this Guarantee. 

(h) Each Guaranteeing Subsidiary shall have the right to seek contribution from any non-paying Guarantor so long as the exercise of such
right does not impair the rights of the Holders under this Guarantee. 

 (i) Pursuant to Section 10.02 of the Indenture, after giving effect to all other
contingent and fixed liabilities that are relevant under any applicable Bankruptcy or fraudulent conveyance laws, and after giving effect to any collections from, rights to receive contribution from or payments made by or on behalf of any other
Guarantor in respect of the obligations of such other Guarantor under Article 10 of the Indenture, this new Guarantee shall be limited to the maximum amount permissible such that the obligations of such Guaranteeing Subsidiary under this Guarantee
will not constitute a fraudulent transfer or conveyance. 
 (j) This Guarantee shall remain in full force and effect and
continue to be effective should any petition be filed by or against the Company for liquidation, reorganization, should the Company become insolvent or make an assignment for the benefit of creditors or should a receiver or trustee be appointed for
all or any significant part of the Company’s assets, and shall, to the fullest extent permitted by law, continue to be effective or be reinstated, as the case may be, if at any time payment and performance of the Senior Notes are, pursuant to
applicable law, rescinded or reduced in amount, or must otherwise be restored or returned by any obligee on the Senior Notes and Guarantee, whether as a “voidable preference”, “fraudulent transfer” or otherwise, all as though
such payment or performance had not been made. In the event that any payment or any part thereof, is rescinded, reduced, restored or returned, the Senior Note shall, to the fullest extent permitted by law, be reinstated and deemed reduced only by
such amount paid and not so rescinded, reduced, restored or returned. 
 (k) In case any provision of this Guarantee shall be
invalid, illegal or unenforceable, the validity, legality, and enforceability of the remaining provisions shall not in any way be affected or impaired thereby. 
 (l) This Guarantee shall be a general unsecured senior obligation of such Guaranteeing Subsidiary, ranking pari passu with any other future Senior Indebtedness of the Guaranteeing
Subsidiary, if any. 
 (m) Each payment to be made by a Guaranteeing Subsidiary in respect of this Guarantee shall be made
without set-off, counterclaim, reduction or diminution of any kind or nature. 
 (3) Execution and Delivery. Each
Guaranteeing Subsidiary agrees that the Guarantee shall remain in full force and effect notwithstanding the absence of the endorsement of any notation of such Guarantee on the Senior Notes. 

(4) Merger, Consolidation or Sale of All or Substantially All Assets. 

(a) Except as otherwise provided in Section 5.01(c) of the Indenture, each Guaranteeing Subsidiary may not consolidate or merge with
or into or wind up into (whether or not the Issuer or such Guaranteeing Subsidiary is the surviving corporation), or sell, assign, transfer, lease, convey or otherwise dispose of all or substantially all of its properties or assets, in one or more
related transactions, to any Person unless: 
 (i) (A) such Guaranteeing Subsidiary is the surviving corporation or the
Person formed by or surviving any such consolidation or merger (if other than such Guaranteeing 

 
Subsidiary) or to which such sale, assignment, transfer, lease, conveyance or other disposition will have been made is a corporation organized or existing under the laws of the jurisdiction of
organization of such Guaranteeing Subsidiary, as the case may be, or the laws of the United States, any state thereof, the District of Columbia, or any territory thereof (such Guaranteeing Subsidiary or such Person, as the case may be, being herein
called the “Successor Entity”); 
 (B) the Successor Entity, if other than such Guaranteeing Subsidiary,
expressly assumes all the obligations of such Guaranteeing Subsidiary under the Indenture and such Guaranteeing Subsidiary’s related Guarantee pursuant to supplemental indentures or other documents or instruments in form reasonably satisfactory
to the Trustee; 
 (C) immediately after such transaction, no Default exists; and 

(D) the Company shall have delivered to the Trustee an Officer’s Certificate and an Opinion of Counsel, each stating that such
consolidation, merger or transfer and such supplemental indentures, if any, comply with the Indenture; or 
 (ii) the
transaction is made in compliance with Section 4.10 of the Indenture; 
 (b) Subject to certain limitations described in
the Indenture, the Successor Entity will succeed to, and be substituted for, the related Guaranteeing Subsidiary under the Indenture and such Guaranteeing Subsidiary’s Guarantee. Notwithstanding the foregoing, such Guaranteeing Subsidiary may
merge into or transfer all or part of its properties and assets to another Guarantor or the Company. 
 (5) Releases. The
Guarantee of each Guaranteeing Subsidiary shall be automatically and unconditionally released and discharged, and no further action by a Guaranteeing Subsidiary, the Company or the Trustee is required for the release of such Guaranteeing
Subsidiary’s Guarantee, upon: 
 (1) (A) any sale, exchange or transfer (by merger or otherwise) of the Capital Stock
of such Guaranteeing Subsidiary (including any sale, exchange or transfer), after which such Guaranteeing Subsidiary is no longer a Restricted Subsidiary or all or substantially all the assets of such Guaranteeing Subsidiary which sale, exchange or
transfer is made in compliance with the applicable provisions of the Indenture; 
 (B) the release or discharge of the guarantee
by such Guaranteeing Subsidiary of the Senior Credit Facilities or the guarantee which resulted in the creation of the Guarantee, except a discharge or release by or as a result of payment under such guarantee; 

(C) the proper designation of such Guaranteeing Subsidiary as an Unrestricted Subsidiary; or 

(D) the Company exercising its Legal Defeasance option or Covenant Defeasance option in accordance with Article 8 of the Indenture or the
Company’s obligations under the Indenture being discharged in accordance with the terms of the Indenture; and 

 (2) such Guaranteeing Subsidiary delivering to the Trustee an Officer’s Certificate
and an Opinion of Counsel, each stating that all conditions precedent provided for in the Indenture relating to such transaction have been complied with. 
 (6) No Recourse Against Others. No director, officer, employee, incorporator or stockholder of a Guaranteeing Subsidiary shall have any liability for any obligations of the Company or the
Guarantors (including each Guaranteeing Subsidiary) under the Senior Notes, any Guarantees, the Indenture or this Supplemental Indenture or for any claim based on, in respect of, or by reason of, such obligations or their creation. Each Holder by
accepting Senior Notes waives and releases all such liability. The waiver and release are part of the consideration for issuance of the Senior Notes. 
 (7) Governing Law. THIS SUPPLEMENTAL INDENTURE WILL BE GOVERNED BY AND CONSTRUED IN ACCORDANCE WITH THE LAWS OF THE STATE OF NEW YORK. 

(8) Counterparts. The parties may sign any number of copies of this Supplemental Indenture. Each signed copy shall be an original,
but all of them together represent the same agreement. 
 (9) Effect of Headings. The Section headings herein are for
convenience only and shall not affect the construction hereof. 
 (10) The Trustee. The Trustee shall not be responsible
in any manner whatsoever for or in respect of the validity or sufficiency of this Supplemental Indenture or for or in respect of the recitals contained herein, all of which recitals are made solely by the Guaranteeing Subsidiaries. 

(11) Subrogation. Each Guaranteeing Subsidiary shall be subrogated to all rights of Holders of Senior Notes against the Company in
respect of any amounts paid by such Guaranteeing Subsidiary pursuant to the provisions of Section 2 hereof and Section 10.01 of the Indenture; provided that, if an Event of Default has occurred and is continuing, such Guaranteeing
Subsidiary shall not be entitled to enforce or receive any payments arising out of, or based upon, such right of subrogation until all amounts then due and payable by the Company under the Indenture or the Senior Notes shall have been paid in full.

 (12) Benefits Acknowledged. Each Guaranteeing Subsidiary’s Guarantee is subject to the terms and conditions set
forth in the Indenture. Each Guaranteeing Subsidiary acknowledges that it will receive direct and indirect benefits from the financing arrangements contemplated by the Indenture and this Supplemental Indenture and that the guarantee and waivers made
by it pursuant to this Guarantee are knowingly made in contemplation of such benefits. 
 (13) Successors. All agreements
of each Guaranteeing Subsidiary in this Supplemental Indenture shall bind its Successors, except as otherwise provided in Section 2(k) hereof or elsewhere in this Supplemental Indenture. All agreements of the Trustee in this Supplemental
Indenture shall bind its successors. 

 IN WITNESS WHEREOF, the parties hereto have caused this Supplemental Indenture to be duly
executed, all as of the date first above written. 
  

			
	 HAWKER BEECHCRAFT ACQUISITION
       COMPANY LLC

		
	By:	 	 /s/ Halet A. Murphy

		 	Name:  Halet A. Murphy
		 	Title:    Vice President and Treasurer
	
	HAWKER BEECHCRAFT NOTES COMPANY
		
	By:	 	 /s/ Halet A. Murphy

		 	Name:  Halet A. Murphy
		 	Title:    Vice President and Treasurer
	
	 HAWKER BEECHCRAFT DEFENSE
       COMPANY, LLC

		
	By:	 	 /s/ Halet A. Murphy

		 	Name:  Halet A. Murphy
		 	Title:    Vice President and Treasurer
	
	HAWKER BEECHCRAFT HOLDING, INC.
		
	By:	 	 /s/ Halet A. Murphy

		 	Name:  Halet A. Murphy
		 	Title:    Chairman, Vice President and Treasurer
	
	 DEUTSCHE BANK NATIONAL TRUST
       COMPANY, as Trustee

		
	By:	 	 /s/ Victoria Y. Douyon

		 	Name:  Victoria Y. Douyon
		 	Title:    Vice President
		
	By:	 	 /s/ George F. Kubin

		 	Name:  George F. Kubin
		 	Title:    Vice President

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