EASA AD US-2018-26-03: Superseded by FAA AD 2025-20-14

What to do

Operators of Boeing 757-200 series airplanes must perform repetitive horizontal actuator identifications, horizontal movement system checks, and detailed inspections as specified. They must also conduct general visual inspections to identify seat part numbers and perform cable adjustment checks where applicable. Compliance with this directive is required by January 31, 2019, the effective date of the AD.

Summary

FAA Airworthiness Directive 2018-26-03 is a final rule addressing all Boeing Model 757-200 series airplanes. It mandates inspections and checks of the captain's and first officer's seat horizontal movement systems due to reports of uncommanded seat movements. The directive includes repetitive actuator identifications, detailed inspections, and on-condition corrective actions to ensure seat safety.

What changed

This new airworthiness directive introduces mandatory repetitive inspections and checks of the horizontal movement systems of the captain's and first officer's seats on Boeing 757-200 series airplanes. It requires visual inspections to determine seat part numbers, cable adjustment checks for certain seats, and applicable corrective actions. The directive also clarifies that seat removal for inspections can be performed in a dedicated shop or on the aircraft.

Why it matters

This directive is critical for aviation professionals to prevent unsafe uncommanded seat movements that could compromise flight safety. Operators and maintenance teams must implement these inspections and corrective actions to comply with FAA regulations and maintain airworthiness. It ensures that seat systems function reliably, reducing risk during flight operations.

What to do

Summary

What changed

Why it matters

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