THE USE OF THE FOLLOWING NOTATION IN THIS EXHIBIT INDICATES THAT THE CONFIDENTIAL PORTION HAS BEEN OMITTED PURSUANT TO A REQUEST FORCONFIDENTIAL TREATMENT AND THE OMITTED MATERIAL HAS BEEN FILED SEPARATELY WITH THE SECURITIES AND EXCHANGE COMMISSION: [***]

Exhibit 10.1.37

THE USE OF THE FOLLOWING NOTATION IN THIS EXHIBIT INDICATES THAT THE CONFIDENTIAL PORTION HAS BEEN OMITTED PURSUANT TO A REQUEST FOR CONFIDENTIAL TREATMENT AND THE OMITTED MATERIAL HAS BEEN FILED SEPARATELY WITH THE SECURITIES AND EXCHANGE COMMISSION: [***]

May 25, 2016

Gogo LLC

111 N. Canal St., Ste. 1500 Chicago, Illinois 60606

RE: Third Amended and Restated In Flight Connectivity Services Agreement (as heretofore amended, the “Pre-Apollo Agreement”) effective as of September 13, 2012; In Flight Connectivity Services Agreement ( as heretofore amended, the “Apollo Agreement”) effective as of September 14, 2012; Amended and Restated In Flight Connectivity Services Agreement (as heretofore amended, the “L-US Agreement”) effective as of March 14, 2012.

Gentlemen:

Reference is hereby made to the above-referenced agreements (the “Agreements”). This letter will acknowledge and evidence that American Airlines, Inc. (“American”) is willing and hereby offers to agree, effective as of the date of this letter and for good and valuable consideration, to the terms set forth in Exhibit A attached hereto with respect to the provision of inflight connectivity services by Gogo LLC (“Gogo”) to American.

If Gogo is also willing to accept and agree to such terms, please evidence and acknowledge such fact by signing both copies of this letter in the space provided and returning one (1) copy to the undersigned. In such event, and without the necessity of further action: the Agreements shall be deemed to be amended to reflect such terms; and, as so deemed to be amended, the Agreements shall be deemed to be ratified and affirmed and to remain in full force and effect. All capitalized terms used in such terms without definition shall have the respective meanings therefor specified in the applicable Agreement(s).

To the extent that any provision in Exhibit A is inconsistent with another provision in any Agreement, the provision in Exhibit A shall prevail. The parties acknowledge that pending execution of the unified agreement contemplated by Exhibit A, due to the summary nature of certain terms set forth in Exhibit A and the lack of defined terms therein, the parties may from time to time be required to agree upon certain details required to properly effectuate such terms (including by way of example notice periods or materiality thresholds) or to reconcile such terms with other existing but not inconsistent terms of the Agreements, and to consider other matters of contract interpretation. The parties shall work together in good faith to reach a mutually acceptable resolution of such issues.

[***].

Exhibit A: Term Sheet

[***]

[***]

The 2Ku program is contingent on the availability of the Next Gen Gilat Satellite Network Modem and 802.11ac WAPs for new 2Ku installs

[***]

Above schedules are subject to change at American’s option provided that such changes are accompanied by reasonable notice and that significant schedule accelerations can be implemented by Gogo on a commercially reasonable basis.

Service description: Single product supports Internet web browsing, streaming media and operational data usage.

Pricing for passenger sessions: [***]

The parties will mutually agree upon (and set forth in the SLA) additional details of performance objectives and related remedies for missing such objectives, consistent with the provisions of Section 11 below, within the following framework: [***]

[***]

[***]