EASA AD US-2025-01-06: Superseded by FAA AD 2025-15-08

What to do

Operators must identify the part and serial numbers of Captain's and First Officer's seats and perform detailed inspections and repetitive checks of the HMS as specified in Boeing Special Attention Service Bulletins 767-25-0539 and 767-25-0549, Revision 2. Any on-condition actions such as cable adjustments, seat overhauls, or replacements must be completed promptly. Compliance with this AD is mandatory by March 11, 2025.

Summary

The FAA Airworthiness Directive 2025-01-06 supersedes AD 2019-14-13 and applies to all Boeing 767-200, -300, -300F, and -400ER series airplanes. It addresses uncommanded fore and aft movement of the Captain's and First Officer's seats by requiring identification of seat part and serial numbers, inspections of the horizontal movement system (HMS), and applicable on-condition actions. The directive incorporates updated Boeing and Ipeco service bulletins to include previously omitted seat part numbers.

What changed

This AD retains the inspection and on-condition actions from AD 2019-14-13 and adds inspections for additional Ipeco seat part numbers that were previously omitted. It clarifies compliance requirements and updates terminology in service bulletin references. The applicability remains broad, covering all affected Boeing 767 models regardless of seat configuration.

Why it matters

This directive is critical for aviation professionals because uncommanded seat movement during critical flight phases could obstruct flight controls or cause unintended inputs, risking loss of airplane control. Operators, maintenance, and compliance teams must ensure timely inspections and corrective actions to maintain safety and regulatory compliance. The AD also standardizes inspection requirements across the fleet, ensuring consistent risk mitigation.

What to do

Summary

What changed

Why it matters

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