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FAA orders removal of turbine seals on certain Engine Alliance engines

By LexCircuit Desk · · AI-drafted, human-reviewed

The Federal Aviation Administration adopted a new airworthiness directive on October 8, 2026 for certain Engine Alliance GP7270, GP7272 and GP7277 engines. Prompted by an aborted takeoff caused by an uncontained failure of the high-pressure turbine interstage seal, the directive requires removing the seal from service and replacing it with a part eligible for installation. It takes effect October 23, 2026.

Text (Federal Register) →

Key points

  • Covers Engine Alliance Model GP7270, GP7272 and GP7277 engines.Federal Register
  • Prompted by an aborted takeoff from an uncontained failure of the high-pressure turbine interstage seal.Federal Register
  • Requires removal from service and replacement of the seal with an eligible part.Federal Register
  • Published as 91 FR 64256; effective October 23, 2026.Federal Register
  • Amends 14 CFR part 39 aircraft safety requirements.Federal Register
  • FAA estimates 0 engines on U.S.-registered airplanes are affected; comments due November 23, 2026.Federal Register

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