EASA AD US-2025-15-08
Equipment / Furnishings - Flight Crew Seats - Inspection / Check
Summary
Airworthiness Directive 2025-15-08 is a final rule issued by the Federal Aviation Administration (FAA) addressing The Boeing Company Model 767-200, -300, -300F, and -400ER series airplanes. It focuses on inspection and checks of the flight crew seats, specifically the Captain's and First Officer's seats, to ensure the horizontal movement system (HMS) functions safely. This directive corrects previous errors related to crediting compliance actions and clarifies inspection requirements.
What Changed
This AD supersedes AD 2025-01-06 and corrects paragraph (j) to clarify which inspection and corrective actions are required and which are not. It removes incorrect crediting of certain service bulletin revisions and ensures that credit is only given when airplane records meet specific criteria tied to Boeing Special Attention Service Bulletins 767-25-0539 and 767-25-0549, Revision 2, dated January 27, 2023.
Why It Matters
The directive addresses the unsafe condition of uncommanded fore and aft movement of flight crew seats, which could obstruct flight controls or cause unintended inputs during critical flight phases like takeoff or landing. Compliance ensures continued airworthiness and safety of Boeing 767 series airplanes, preventing potential loss of airplane control. Operators and maintenance teams must accurately follow updated inspection and corrective action requirements to maintain regulatory compliance and flight safety.
What To Do
Operators of affected Boeing 767-200, -300, -300F, and -400ER airplanes must perform identification of seat part and serial numbers, conduct detailed inspections and repetitive checks of the HMS on Captain's and First Officer's seats, and carry out any required on-condition actions. Compliance with this AD is mandatory by August 21, 2025. Stakeholders should review Boeing Special Attention Service Bulletins 767-25-0539 and 767-25-0549, Revision 2, and ensure all inspections and corrective actions align with the clarified credit provisions.