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US Sale of F110 Engines to Türkiye Advances as Congressional Review Period Expires

The statutory 15-day U.S. Congressional review period for the sale of General Electric F110 jet engines to Türkiye has concluded without intervention, clearing the regulatory path for Ankara's domestic KAAN combat aircraft program to transition into commercial negotiations.

July 10, 2026 Ahmet Koçak

Cover Image

F110 engine running at a test cell facility at Shaw Air Force Base in South Carolina, March 3, 2017

The U.S. sale of General Electric F110 jet engines to Türkiye is moving forward following the expiration of the official 15-day Congressional review period.

The conclusion of the statutory window clears a significant regulatory hurdle for Ankara's national combat aircraft program.

Legislative Window Closes

Following a formal notification by the U.S. State Department on June 24, 2026, the 15-day review period mandated for defense sales to NATO allies concluded on July 9.

A joint resolution aimed at blocking the transfer failed to gain traction on Capitol Hill.

The proposed block, introduced by Representative Dina Titus alongside eight other Democratic lawmakers, was never scheduled for a floor vote in either the House of Representatives or the Senate.

Consequently, the legal mechanism to halt the export expired, allowing the bilateral defense transaction to proceed.

Program Integration and Scope

The approved arms package centers on General Electric F110-GE-129E/F engines destined for the KAAN fighter jet framework.

Beyond the physical engine units, the agreement encompasses technical data sharing, defense services, and systemic adaptation workflows.

Future stages will involve direct negotiations between Turkish defense officials, the U.S. administration, and the manufacturer.

These discussions will formalize delivery schedules, assembly protocols, external modifications, and subsequent flight certification testing.

Failed Congressional Opposition

The legislative effort to halt the transaction cited past acquisitions of S-400 systems and drew backing from lawmakers representing districts influenced by Armenian, Greek, and Israeli diasporas.

Signatories included representatives Brad Sherman, Chris Pappas, and Jim McGovern, who previously opposed F-16 sales to Ankara.

U.S. arms export regulations stipulate that blocking a sales notification requires a concurrent resolution to pass both legislative chambers and secure the signature of President Donald Trump.

As Congress failed to bring the resolution to a vote before the deadline, the procurement process shifts to its next commercial phase.