Equipment / Furnishings - Captain's and First Officer's Seats - Inspection / Check
- Published
- Effective
- Replaces
- 2025-01-08
- Replaces
- 2019-22-02
AI-generated summary of the official EASA document. Verify against the PDF before acting.
What to do
Operators of affected Boeing 747 models must identify seat part and serial numbers, perform detailed inspections and repetitive checks of the HMS, and carry out any necessary on-condition actions as specified in the updated service bulletins. Compliance with this AD is mandatory by August 13, 2025, and comments on the AD must be submitted by September 12, 2025.
Summary
Airworthiness Directive 2025-15-07 is a final rule issued by the Federal Aviation Administration addressing The Boeing Company Model 747 series airplanes, including 747-200B, 747-200C, 747-200F, 747-300, 747-400, 747-400D, 747-400F, 747-8F, and 747-8. It focuses on inspection and checks of the Captain's and First Officer's seats, specifically the horizontal movement system (HMS), to ensure safety and prevent uncommanded seat movement during critical flight phases.
What changed
This directive supersedes AD 2025-01-08 and corrects an error in the previous AD regarding credit for compliance actions tied to specific service information revisions. It clarifies which inspection and corrective actions are required and which are not, ensuring operators correctly follow the updated service bulletins for seat inspections and maintenance.
Why it matters
This AD is critical for aviation professionals because uncommanded fore and aft movement of pilot seats can obstruct flight controls or cause unintended inputs, posing a serious safety risk during takeoff or landing. Operators, maintenance, and compliance teams must ensure accurate inspections and corrective actions to maintain aircraft control integrity and regulatory compliance.
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