Sixth Amendment to the Amended and Restated Credit and Guaranty Agreement, dated as of December 10, 2018, amending the Amended and Restated Credit and Guaranty Agreement, dated as of April 20, 2015, among American Airlines, Inc., American Airlines Group Inc., the lenders from time to time party thereto, Citibank N.A., as administrative agent, and certain other parties thereto

THIS SIXTH AMENDMENT TO AMENDED AND RESTATED CREDIT AND GUARANTY AGREEMENT (this “Sixth Amendment”), is dated as of December 10, 2018 and is among American Airlines, Inc., a Delaware corporation (the “Borrower”), American Airlines Group Inc., a Delaware corporation (the “Parent” or the “Guarantor”), the Consenting Revolving Lenders (as defined below) party hereto, HSBC Bank USA, N.A. (“HSBC”), MUFG Union Bank, N.A. (“MUFG”) and BOKF, NA dba Bank of Texas (“BoT” and together with HSBC and MUFG, collectively, the “New Revolving Lenders”) and Citibank N.A., as administrative agent (in such capacity, the “Administrative Agent”) and as an issuing lender (in such capacity, an “Issuing Lender”). Unless otherwise indicated, all capitalized terms used herein and not otherwise defined shall have the respective meanings provided to such terms in the Credit Agreement as defined below.

WHEREAS, the Borrower, the Guarantor, the lenders from time to time party thereto, the Administrative Agent and certain other parties thereto are parties to that certain Amended and Restated Credit and Guaranty Agreement, dated as of April 20, 2015 (as amended by that certain First Amendment to Amended and Restated Credit and Guaranty Agreement, dated as of October 26, 2015, as further amended by that certain Second Amendment to Amended and Restated Credit and Guaranty Agreement, dated as of September 22, 2016, as further amended by that certain Third Amendment to Amended and Restated Credit and Guaranty Agreement, dated June 14, 2017, as further amended by that certain Fourth Amendment to Amended and Restated Credit and Guaranty Agreement, dated August 21, 2017, as further amended by that certain Fifth Amendment to Amended and Restated Credit and Guaranty Agreement, dated September 17, 2018 and as further amended, amended and restated, supplemented or otherwise modified up to, but not including the Sixth Amendment Effective Date as defined below, the “Credit Agreement”);

WHEREAS, pursuant to Section 2.28(b) of the Credit Agreement, the Borrower may make a Revolver Extension Offer to all Revolving Lenders holding Revolving Commitments under the Credit Agreement to extend the maturity date of each such Revolving Lender’s Revolving Commitment;

WHEREAS, the Borrower hereby (i) requests that each Revolving Lender that is a party to the Credit Agreement immediately prior to the Sixth Amendment Effective Date (each, an “Existing Revolving Lender”) extend the maturity of such Existing Revolving Lender’s Revolving Commitment pursuant to, and in accordance with the terms of, Section 2.28(b), (c), (d) and (e) of the Credit Agreement and this Sixth Amendment (with such request constituting a Revolver Extension Offer for purposes of the Credit Agreement) and requests that the Administrative Agent waive any applicable notice period otherwise required thereby and (ii) specifies as the Minimum Extension Condition for such Revolving Extension Offer that all such Revolving Commitments be subject to the Revolving Extension contemplated hereby;

WHEREAS, the undersigned Existing Revolving Lenders (the “Consenting Revolving Lenders” and together with the New Revolving Lenders, the “Extending Revolving Lenders”) are willing to extend the maturity date of their respective Revolving Commitments (the “Extended Revolving Commitments”), subject to and on the terms and conditions set forth herein and in Section 2.28(b), (c), (d) and (e) of the Credit Agreement;

WHEREAS, pursuant to Section 2.27 of the Credit Agreement, the Borrower may request an increase to the existing Revolving Commitments, subject to and on the terms and conditions provided therein;

WHEREAS, the Borrower hereby notifies the Administrative Agent of its request for $542,500,000 of new Revolving Commitments (the “New Revolving Commitments”) to be made available by New Revolving Lenders with respect to such New Revolving Commitments in the amount specified therefor on Schedule 1 hereto and requests that the Administrative Agent waive any applicable notice period otherwise required;

WHEREAS, each New Revolving Lender is willing to provide a New Revolving Commitment in the amount set forth opposite its name in Schedule 1 hereto, subject to and on the terms and conditions set forth herein and in the Credit Agreement;

WHEREAS, the undersigned Consenting Revolving Lenders, New Revolving Lenders and the Borrower desire to reallocate the Revolving Commitments (the “Reallocation”) and that each Revolving Lender will hold such Revolving Commitment as is set out opposite its name on Schedule 1;

WHEREAS, the Borrower, the Administrative Agent, the undersigned Revolving Lenders wish to amend the Credit Agreement to provide for certain other modifications to the Credit Agreement, in each case, on the terms and subject to the conditions set forth herein;

WHEREAS, pursuant to Section 2.28(b) of the Credit Agreement, any Existing Revolving Lender who is not a Consenting Lender (each, a “Non-Consenting Revolving Lender”) shall continue to have Revolving Credit Commitments (the “Non-Extended Revolver Commitments”); and

NOW, THEREFORE, in consideration of the foregoing, and for other good and valuable consideration, the receipt and sufficiency of which are hereby acknowledged, the parties hereto hereby agree as follows:

SECTION ONE - Increase in Revolving Commitments. On the Sixth Amendment Effective Date, the Borrower, the Existing Revolving Lenders and the New Revolving Lenders agree that (1) the Total Revolving Commitments shall be $1,542,500,000, consisting of $1,530,500,000 of Sixth Amendment Extended Revolver Commitments and $12,000,000 of Non-Extended Revolver Commitments, (2) New Revolving Commitments shall constitute Extended Revolving Commitments for all purposes of the Credit Agreement and the other Loan Documents and (3) each New Revolving Lender shall become a Revolving Lender under the Credit Agreement

(as amended hereby). For purposes of the Credit Agreement, this Sixth Amendment shall constitute an “Increase Joinder.”

SECTION TWO - Extension of Revolving Facility. On the Sixth Amendment Effective Date (immediately after giving effect to the Reallocation contemplated in Section One), the Borrower, each Extending Revolving Lender and each Non-Consenting Revolving Lender agrees that the Credit Agreement is modified as follows:

““Sixth Amendment” means the Sixth Amendment to this Credit Agreement, dated as of December 10, 2018 among the Borrower, Citibank N.A., as administrative agent and as an issuing lender and the Lenders party thereto.”

““Sixth Amendment Effective Date” shall have the meaning provided in the Sixth Amendment.”;

““Sixth Amendment Extended Revolving Commitments” means the Revolving Commitments of each Sixth Amendment Extending Revolving Lender.”

““Sixth Amendment Extending Revolving Lender” shall mean each Revolving Lender (including the Sixth Amendment New Revolving Lenders) that has provided a signature page on or prior to December 10, 2018 voting in favor of accepting the Sixth Amendment Extension Offer and extending the Revolving Facility Maturity Date as set forth in the Sixth Amendment.”

““Sixth Amendment Extension Offer” means the Extension Offer made pursuant to the Sixth Amendment.”

““Sixth Amendment Non-Extended Revolving Commitments” means the Revolving Commitments of each Sixth Amendment Non-Extending Revolving Lender.”

““Sixth Amendment Non-Extending Revolving Lender” shall mean each Revolving Lender other than the Sixth Amendment Extending Revolving Lenders.”

““Sixth Amendment New Revolving Lenders” shall mean each New Revolving Lender (as defined in the Sixth Amendment).”

“Applicable Margin” shall mean (a)(x) with respect to Revolving Loans in respect of Sixth Amendment Extended Revolving Commitments (i) that are Eurodollar Loans, 2.00% per annum and (ii) that are ABR Loans, 1.00% per annum and (y) with respect to Revolving Loans in respect of Sixth Amendment Non-Extended Revolving Commitments (i) that are Eurodollar Loans, 2.25% per annum and (ii) that are ABR Loans, 1.25% per annum and (b) with respect to 2017

Replacement Term Loans (i) that are Eurodollar Loans, 2.00% per annum and (ii) that are ABR Loans 1.00% per annum.

““Commitment Fee Rate” shall mean (x) in respect of Sixth Amendment Extended Revolving Commitments, 0.625% per annum and (y) in respect of Sixth Amendment Non-Extended Revolving Commitments, 0.75% per annum.”;

““Revolving Facility Maturity Date” shall mean, (a) with respect to Sixth Amendment Extended Revolving Commitments, that have not been extended pursuant to Section 2.28(b), but including Revolving Commitments extended or made available pursuant to the Sixth Amendment, October 13, 2023, (b) with respect to Sixth Amendment Non-Extended Revolving Commitments that have not been extended pursuant to Section 2.28(b), October 13, 2022 and (c) with respect to Extended Revolving Commitments extended after the Sixth Amendment Effective Date, the final maturity date therefor as specified in the applicable Extension Offer accepted by the respective Revolving Lender or Revolving Lenders.”;

“The aggregate amount of the Total Revolving Commitments as of the Sixth Amendment Effective Date and after giving effect to the New Revolving Commitments under, and as defined in the Sixth Amendment is $1,542,500,000, consisting of $1,530,500,000 of Sixth Amendment Extended Revolver Commitments and $12,000,000 of Sixth Amendment Non-Extended Revolver Commitments.”;

“Notwithstanding any provision to the contrary set forth in this Agreement, the Revolving Lenders agree that in the event the Administrative Agent determines, pursuant to and in accordance with this Section 2.09, that reasonable means do not exist for ascertaining the applicable LIBO Rate and the Administrative Agent and

the Borrower mutually determine that the syndicated loan market has broadly accepted a replacement standard for the LIBO Rate, then the Administrative Agent and Borrower may, without the consent of any Revolving Lender and solely with respect to the Revolving Loans, amend this Agreement to adopt such new broadly accepted market standard and to make such other changes as shall be necessary or appropriate in the good faith determination of the Administrative Agent and the Borrower in order to implement such new market standard herein and in the other Loan Documents.”;

“The Borrower shall pay to the Administrative Agent for the accounts of the Revolving Lenders a commitment fee (the “Commitment Fee”) for the period commencing on the Closing Date to the Revolving Facility Termination Date with respect to the applicable Revolving Commitments or the earlier date of termination of the applicable Revolving Commitment, computed (on the basis of the actual number of days elapsed over a year of 360 days) at the Commitment Fee Rate on the average daily Unused Total Revolving Commitment. Such Commitment Fee, to the extent then accrued, shall be payable quarterly in arrears (a) following the Closing Date on the last Business Day of each March, June, September and December, (b) on the Revolving Facility Termination Date with respect to the applicable Revolving Commitments and (c) as provided in Section 2.11, upon any reduction or termination in whole or in part of the Total Revolving Commitment (provided that such fee will be prorated based on the Commitment Fee set forth in the Sixth Amendment for the fiscal quarter in which the Sixth Amendment Effective Date occurs).”; and

If any LC Exposure of any Sixth Amendment Non-Extending Revolving Lender exists on the Revolving Facility Maturity Date applicable to the Sixth Amendment Non-Extended Revolving Commitments of such Sixth Amendment Non-Extending Revolving Lender then:

(i) the LC Exposure of such Sixth Amendment Non-Extending Revolving Lender will, upon at least two (2) Business Days prior notice to the Borrower and the other Revolving Lenders by the Administrative Agent, and subject in any event to the limitation in the first proviso below, automatically be reallocated (effective on the day specified in such notice) among the Sixth Amendment Extending Revolving Lenders pro rata in accordance with their respective Revolving Commitments; provided that (A) the Revolving Extensions of Credit of each such Revolving Lender may not in any event exceed the Revolving Commitment of such Revolving Lender as in effect at the time of such reallocation and (B) at the time of such reallocation, no Event of Default pursuant to Section 7.01(b), (f) or (g) has occurred and is continuing; and

(ii) to the extent that any portion (the “Unreallocated Portion”) of the Sixth Amendment Non-Extending Revolving Lender’s LC Exposure cannot be so reallocated, whether by reason of the first proviso in clause (i) above or otherwise, the Borrower will, not later than three (3) Business Days after demand by the Administrative Agent, (A) Cash Collateralize the obligations of the Borrower to the Issuing Lenders in respect of such LC Exposure in an amount at least equal to the aggregate amount of the Unreallocated Portion of such LC Exposure or (B) make other arrangements reasonably satisfactory to the Administrative Agent and the Issuing Lenders to protect them against non-payment by such Sixth Amendment Non-Extending Revolving Lender.”

Notwithstanding anything in this Sixth Amendment or the Credit Agreement to the contrary, the Administrative Agent hereby waives (a) the minimum notice required by Section 2.27(a) of the Credit Agreement in connection with the establishment of the New Revolving Commitments and (b) the minimum notice required by Section 2.28(e) of the Credit Agreement in connection with the Revolver Extension to be effected pursuant to this Sixth Amendment.

SECTION THREE - The parties hereto agree that, as of the Sixth Amendment Effective Date (as defined below) and in connection with the Sixth Amendment:

(a)    each of Citigroup Global Markets Inc. (“Citi”), Barclays Bank PLC (“Barclays”), Credit Suisse Securities (USA) LLC (“CS Securities”), Deutsche Bank Securities Inc. (“DBSI”), Goldman Sachs Lending Partners LLC (“GSLP”), Industrial and Commercial Bank of China Limited, New York Branch (“ICBC”), JPMorgan Chase Bank, N.A. (“JPMCB”), Merrill Lynch, Pierce, Fenner & Smith Incorporated (“ML”), Morgan Stanley Senior Funding, Inc. (“MS”), Sumitomo Mitsui Banking Corporation (“SMBC”), BNP Paribas Securities Corp. (“BNP Securities”), Credit Agricole Corporate and Investment Bank (“CA-CIB”), HSBC, MUFG, Standard Chartered Bank (“SCB”), U.S. Bank National Association (“US Bank”), and BoT shall be designated as, and perform the roles associated with, a joint lead arranger and bookrunner;

(b)    each of Citi, Barclays, CS Securities, DBSI, GSLP, ICBC, JPMCB, Bank of America, N.A., MS and SMBC shall be designated as, and perform the roles associated with, a syndication agent; and

(c)    each of BNP Securities, CA-CIB, HSBC, MUFG, SCB, US Bank, and BoT shall be designated as, and perform the roles associated with, a documentation agent.

SECTION FOUR - Conditions to Effectiveness. The provisions of Sections One and Two of this Sixth Amendment shall become effective on the date (the “Sixth Amendment Effective Date”) when each of the following conditions specified below shall have been satisfied:

(a)    the Borrower, the Guarantor, the Administrative Agent, each Issuing Lender, each Consenting Revolving Lender and each New Revolving Lender shall have signed a counterpart hereof (whether the same or different counterparts) and the Borrower and the Collateral Agent shall have signed an SGR Security Agreement Supplement in form and substance satisfactory to the

Borrower, the Collateral Agent and the Administrative Agent with respect to the Borrower’s scheduled services between any airport in the United States and such other airports in addition to LHR located in the European Union, and in each case shall have delivered the same to Milbank, Tweed, Hadley & McCloy LLP, 28 Liberty Street, New York, NY 10005, attention: Zara Shirazi;

(b)    all reasonable invoiced out-of-pocket expenses incurred by the Extending Revolving Lenders and the Administrative Agent pursuant to Section 10.04 of the Credit Agreement (including the reasonable and documented fees, charges and disbursements of counsel) and all accrued and unpaid fees (other than the Commitment Fee, which shall be payable in accordance with the Credit Agreement), owing and payable (including any fees agreed to in connection with this Sixth Amendment) shall have been paid to the extent invoiced at least two (2) Business Days prior to the Sixth Amendment Effective Date (or such shorter period as may be agreed by the Borrower);

(c)    the Borrower shall have paid (or caused to be paid), for the account of each Extending Revolving Lender, a one time, non-refundable fee equal to the amount set forth in that certain Extending Revolving Lenders’ fee letter, among the Extending Revolving Lenders and the Borrower, dated as of the Sixth Amendment Effective Date;

(d)    the Administrative Agent shall have received a customary written opinion of Latham & Watkins LLP, special counsel for Parent, the Borrower and the Guarantor addressed to the Administrative Agent and the Extending Revolving Lenders party hereto, and dated the Sixth Amendment Effective Date;

(e)    the Borrower shall have paid to the Administrative Agent (for the account of the Consenting Revolving Lenders) all fees and interest accrued pursuant to Sections 2.07, 2.15, 2.16 and 2.21 of the Credit Agreement in respect of the Revolving Facility to, and including, the Sixth Amendment Effective Date, whether or not then due and payable under the terms of the Credit Agreement;

(f)    the condition to the Revolving Extension effected pursuant to this Sixth Amendment set forth in Section 2.28(b) and 2.28(c) of the Credit Agreement shall have been satisfied and the conditions to the establishment of the New Revolving Commitments pursuant to this Sixth Amendment set forth in Section 2.27(b) of the Credit Agreement shall have been satisfied;

(g)    the Administrative Agent shall have received a certificate of the Secretary or Assistant Secretary (or similar Responsible Officer), dated the Sixth Amendment Effective Date (i) certifying as to the incumbency and specimen signature of each Responsible Officer of the Borrower and the Guarantor executing this Sixth Amendment or any other document delivered by it in connection herewith (such certificate to contain a certification of another Responsible Officer of that entity as to the incumbency and signature of the Responsible Officer signing the certificate referred to in this clause (g)), (ii) attaching each constitutional document of each Loan Party or certifying that each constitutional document of each Loan Party previously delivered to the Administrative Agent has not been amended, supplemented, rescinded or otherwise modified and remains in full force and effect as of the date hereof, (iii) attaching resolutions of each Loan Party approving the transactions contemplated by the Sixth Amendment and (iv) attaching a certificate

of good standing for the Borrower and the Guarantor of the state of such entity’s incorporation or formation, dated as of a recent date, as to the good standing of that entity (to the extent available in the applicable jurisdiction);

(h)    the Administrative Agent shall have received evidence that the Fifth Amendment to that certain Amended and Restated Credit and Guaranty Agreement dated the date hereof, among, inter alios, the Borrower and Deutsche Bank AG New York Branch as administrative agent and the Fourth Amendment to that certain Credit and Guaranty Agreement, dated as of the date hereof, among, inter alios, the Borrower and Barclays Bank PLC as administrative agent have, or will contemporaneously with the Sixth Amendment Effective Date, become effective; and

(i)    the Administrative Agent shall have received an Officer’s Certificate certifying (A) the truth in all material respects of the representations and warranties set forth in the Credit Agreement and the other Loan Documents (other than representations and warranties set forth in Sections 3.05(b), 3.06, 3.09(a) and 3.19 of the Credit Agreement) as though made on the date hereof, or, in the case of any such representation and warranty that relates to a specified date, as though made as of such date; provided, that any representation or warranty that is qualified by materiality (it being understood that any representation or warranty that excludes circumstances that would not result in a “Material Adverse Change” or “Material Adverse Effect” shall not be considered (for purposes of this proviso) to be qualified by materiality) shall be true and correct in all respects as of the applicable date; and provided, further, that for purposes of this clause (i), the representations and warranties contained in (i) Section 3.04(a) of the Credit Agreement shall be deemed to refer to Parent’s Annual Report on Form 10-K for 2017 filed with the SEC (as amended) and all Quarterly Reports on Form 10-Q or Current Reports on Form 8-K that have been filed since December 31, 2017 by Parent with the SEC (as amended) and (ii) Section 3.05(a) of the Credit Agreement shall be deemed to refer to the audited consolidated financial statements of Parent and its Subsidiaries for the fiscal year ended December 31, 2017, included in Parent’s Annual Report on Form 10-K for 2017 filed with the SEC (as amended) and the unaudited consolidated financial statements of Parent and its Subsidiaries for the fiscal quarters ended March 31, 2018, June 30, 2018 and September 30, 2018, and (B) as to the absence of any event occurring and continuing, or resulting from this Sixth Amendment on, the Sixth Amendment Effective Date, that constitutes a Default or Event of Default.

SECTION FIVE - No Default; Representations and Warranties. In order to induce the Extending Revolving Lenders and the Administrative Agent to enter into this Sixth Amendment, the Borrower represents and warrants to each of the Extending Revolving Lenders and the Administrative Agent that, on and as of the date hereof after giving effect to this Sixth Amendment, (i) no Default or Event of Default has occurred and is continuing or would result from giving effect to this Sixth Amendment and (ii) the representations and warranties contained in the Credit Agreement and the other Loan Documents (other than representations and warranties set forth in Sections 3.05(b), 3.06, 3.09(a) and 3.19 of the Credit Agreement) are true and correct in all material respects on and as of the date hereof with the same effect as if made on and as of the date hereof or, in the case of any representations and warranties that expressly relate to an earlier date, as though made as of such date; provided, that any representation or warranty that is qualified by materiality (it being understood that any representation or warranty that excludes circumstances that would not

result in a “Material Adverse Change” or “Material Adverse Effect” shall not be considered (for purposes of this proviso) to be qualified by materiality) shall be true and correct in all respects as of the applicable date; and provided, further, that for purposes of this Section Five, the representations and warranties contained in (i) Section 3.04(a) of the Credit Agreement shall be deemed to refer to Parent’s Annual Report on Form 10-K for 2017 filed with the SEC (as amended) and all Quarterly Reports on Form 10-Q or Current Reports on Form 8-K that have been filed since December 31, 2017 by Parent with the SEC (as amended) and (ii) Section 3.05(a) of the Credit Agreement shall be deemed to refer to the audited consolidated financial statements of Parent and its Subsidiaries for the fiscal year ended December 31, 2017, included in Parent’s Annual Report on Form 10-K for 2017 filed with the SEC (as amended) and the unaudited consolidated financial statements of Parent and its Subsidiaries for the fiscal quarters ended March 31, 2018, June 30, 2018 and September 30, 2018.

SECTION SIX - Confirmation. The Borrower and the Guarantor hereby confirm that all of their obligations under the Credit Agreement (as amended hereby) are and shall continue to be, in full force and effect. The parties hereto (i) confirm and agree that the term “Obligations” and “Guaranteed Obligations” as used in the Credit Agreement and the other Loan Documents, shall include, without limitation, all obligations of the Borrower with respect to the Revolving Commitments (as increased and extended pursuant to this Sixth Amendment) and all obligations of the Guarantor with respect of the guarantee of such obligations, respectively, and (ii) reaffirm the grant of Liens on the Collateral to secure the Obligations (as extended and increased pursuant to this Sixth Amendment) pursuant to the Collateral Documents.

SECTION SEVEN - Reference to and Effect on the Credit Agreement. On and after the Sixth Amendment Effective Date, each reference in the Credit Agreement to “this Agreement,” “hereunder,” “hereof” or words of like import referring to the Credit Agreement, shall mean and be a reference to the Credit Agreement as amended by this Sixth Amendment. The Credit Agreement and each of the other Loan Documents, as specifically amended by this Sixth Amendment, are and shall continue to be in full force and effect and are hereby in all respects ratified and confirmed. This Sixth Amendment shall be deemed to be a “Loan Document” for all purposes of the Credit Agreement (as amended hereby) and the other Loan Documents. The execution, delivery and effectiveness of this Sixth Amendment shall not, except as expressly provided herein, operate as an amendment or waiver of any right, power or remedy of any Lender or any Agent under any of the Loan Documents, nor constitute an amendment or waiver of any provision of any of the Loan Documents.

SECTION EIGHT - Execution in Counterparts. This Sixth Amendment may be executed in counterparts (and by different parties hereto on different counterparts), each of which shall constitute an original, but all of which when taken together shall constitute a single contract. This Sixth Amendment shall be binding upon and inure to the benefit of the parties hereto and their respective successors and assigns. Delivery of an executed counterpart of a signature page of this Sixth Amendment by facsimile or electronic .pdf copy shall be effective as delivery of a manually executed counterpart of this Sixth Amendment.

SECTION NINE - Governing Law. THIS SIXTH AMENDMENT AND THE RIGHTS AND OBLIGATIONS OF THE PARTIES UNDER THIS SIXTH AMENDMENT SHALL BE GOVERNED BY, AND CONSTRUED AND INTERPRETED IN ACCORDANCE WITH, THE LAWS OF THE STATE OF NEW YORK.

SECTION TEN - Miscellaneous.    (a) The provisions set forth in Sections 10.03, 10.04, 10.05(b)-(d), 10.09, 10.10, 10.11, 10.13, 10.15, 10.16 and 10.17 of the Credit Agreement are hereby incorporated mutatis mutandis herein by reference thereto as fully and to the same extent as if set forth herein.

(b)    For purposes of determining withholding Taxes imposed under FATCA, from and after the effective date of this Sixth Amendment, the Borrower and the Administrative Agent shall treat (and the Lenders party hereto hereby authorize the Administrative Agent to treat) the Revolving Facility as not qualifying as a “grandfathered obligation” within the meaning of Treasury Regulation Section 1.1471-2(b)(2)(i).

IN WITNESS WHEREOF, the parties hereto have caused this Sixth Amendment to be duly executed and delivered as of the day and year first above written.