In rendering this opinion, we have examined and relied upon copies of the following documents in the forms provided to us: the Registration Statement; the Supplement; the Issuers’ $900,000,000 4.125% Senior
Notes due 2029 (the “2029 Notes”); the Issuers’ $850,000,000 4.750% Senior Notes due 2033 (the “2033 Notes” and together with the 2029 Notes, the “Notes”); the Indenture dated as of October 29, 2021 (the “Base Indenture” and, as supplemented by
the Supplemental Indenture referred to below, the “Indenture”) among the Trust, AerCap Ireland Capital Designated Activity Company, a designated activity company with limited liability incorporated under the laws of Ireland (“AICDC” and,
together with the Trust, the “Issuers”), the guarantors party thereto (the “Guarantors”) and The Bank of New York Mellon Trust Company, N.A., as trustee (the “Trustee”), pursuant to which, among other things, the Company guarantees (the
“Guarantee”) the obligations of the Issuers under the Notes on a senior unsecured basis, as supplemented by the Thirteenth Supplemental Indenture dated as of January 15, 2026 (the “Supplemental Indenture”) among the Issuers, the Guarantors and
the Trustee; the Underwriting Agreement dated January 6, 2026 (the “Underwriting Agreement” and, together with the Indenture, the “Transaction Documents”) by and among the Issuers, the Guarantors, J.P. Morgan Securities LLC, Wells Fargo
Securities, LLC, Credit Agricole Securities (USA) Inc., Goldman Sachs & Co. LLC and RBC Capital Markets, LLC, as representatives of the several Underwriters listed therein (as defined therein); the Trust Agreement of the Trust dated as of
February 5, 2014, as amended by the First Amendment thereto dated as of May 5, 2022 (as so amended, the “Trust Agreement”); the Certificate of Trust of the Trust as filed in the Office of the Secretary of State of the State of Delaware (the
“State Office”) on February 5, 2014; the Limited Liability Company Agreement of the Company dated as of February 28, 2014 (the “Company Agreement”); the Certificate of Formation of the Company as filed in the State Office on February 12, 2014,
as amended by the Certificate of Amendment to Certificate of Formation of the Company as filed in the State Office on February 17, 2014; the Written Consent of the Regular Trustee of the Trust dated as of December 22, 2025; the Resolutions of
the Board of Directors of the Company adopted on December 10. 2025; a Certificate of the Regular Trustee of the Trust dated on or about the date hereof; a Certificate of Director of the Company dated on or about the date hereof; and
certificates of good standing of the Trust and the Company obtained from the State Office as of a recent date. In such examinations, we have assumed the genuineness of all signatures, the authenticity of all documents submitted to us as
originals, the conformity to original documents of all documents submitted to us as copies or drafts of documents to be executed and the legal competence and capacity of natural persons to complete the execution of documents. We have further
assumed for purposes of this opinion: (i) except to the extent addressed by our opinions in paragraphs 1 and 2 below, the due formation or organization, valid existence and good standing of each entity that is a signatory to any of the
documents examined by us under the laws of the jurisdiction of its respective formation or organization; (ii) except to the extent addressed by our opinions in paragraphs 5 and 6 below, the due authorization, adoption, execution, and delivery,
as applicable, of each of the above referenced documents; (iii) the payment of consideration for beneficial interests in the Trust by all beneficial owners of the Trust as provided in the Trust Agreement and the satisfaction of, or compliance
with, all of the other terms, conditions and restrictions set forth in the Trust Agreement in connection with the admission of beneficial owners to the Trust and the issuance of beneficial interests in the Trust; (iv) the payment of
consideration for limited liability company interests in the Company by all members of the Company as provided in the Company Agreement and the satisfaction of, or compliance with, all of the other terms, conditions and restrictions set forth
in the Company Agreement in connection with the admission of members to the Company and the issuance of limited liability company interests in the Company; (v) that the activities of the Trust have been and will be conducted in accordance with
the terms of the Trust Agreement and the Delaware Statutory Trust Act, 12 Del. C. §§ 3801 et seq. (the “Delaware Trust Act”); (vi) that the activities of the Company have been and will be conducted in accordance
with the terms of the Company Agreement and the Delaware Limited Liability Company Act, 6 Del. C. §§ 18-101 et seq. (the “Delaware LLC Act”); (vii) that no event or circumstance has occurred on or prior to the
date hereof that would cause a termination or dissolution of the Trust under the Trust Agreement or the Delaware Trust Act, as applicable; (viii) that no event or circumstance has occurred on or prior to the date hereof that would cause a
termination or dissolution of the Company under the Company Agreement or the Delaware LLC Act, as applicable; and (ix) that each of the documents examined by us is in full force and effect, sets forth the entire understanding of the parties
thereto with respect to the subject matter thereof and has not been amended, supplemented or otherwise modified, except as herein referenced. We have not reviewed any documents other than those identified above in connection with this opinion,
and we have assumed that there are no other documents contrary to or inconsistent with the opinions expressed herein. No opinion is expressed herein with respect to the requirements of, or compliance with, federal or state securities or blue
sky laws. Further, we express no opinion on the sufficiency or accuracy of any registration or offering documentation relating to the Trust or the Company. As to any facts material to our opinion, other than those assumed, we have relied,
without independent investigation, on the above referenced documents and on the accuracy, as of the date hereof, of the factual matters therein contained. In addition, we note that each of the Transaction Documents is governed by and construed
in accordance with the laws of a jurisdiction other than the State of Delaware and, for purposes of our opinions set forth below, we have assumed that the Transaction Documents will be interpreted in accordance with the plain meaning of the
written terms thereof as such terms would be interpreted as a matter of Delaware law and we express no opinion with respect to any legal standards or concepts under any laws other than those of the State of Delaware.