Airworthiness DirectiveEASA AD US-2019-14-13

Superseded by FAA AD 2025-01-06

Published: Aug 20, 2019
Effective: Sep 12, 2019
Deadline: Sep 12, 2019

Boeing 767 200 300 300F 400ER

AI-generated summary of the official EASA document. Verify against the PDF before acting.

What to do

Operators of Boeing 767-200, -300, -300F, and -400ER airplanes must identify the part and serial numbers of the Captain's and First Officer's seats by September 12, 2019, and perform the required inspections and repetitive checks of the horizontal movement system. If affected seats are found, on-condition actions such as cable adjustments, overhauls, or replacements must be completed. Operators may use maintenance records to identify seat part numbers instead of physical inspections where conclusive. Optional terminating actions are available for certain airplanes to end repetitive inspections.

Summary

FAA Airworthiness Directive 2019-14-13 is a final rule affecting all Boeing 767-200, -300, -300F, and -400ER series airplanes. It addresses uncommanded fore/aft movements of the Captain's and First Officer's seats by requiring identification of seat part and serial numbers, detailed inspections, repetitive checks of the horizontal movement system, and applicable corrective actions. An optional terminating action is provided for certain airplanes to end repetitive checks.

What changed

This AD introduces requirements for operators to identify affected seat part numbers and serial numbers, perform a one-time detailed inspection and repetitive checks of the seat horizontal movement system, and carry out on-condition corrective actions. It also clarifies that installation of Supplemental Type Certificate ST01920SE does not affect compliance and allows records review as an alternative to physical inspection for seat identification. The AD refines the description of the unsafe condition to specify uncommanded fore/aft seat movement.

Why it matters

This directive is critical for aviation professionals to prevent unsafe uncommanded movements of pilot seats, which could compromise flight safety. Operators and maintenance teams must ensure affected seats are identified and inspected regularly to detect and correct issues such as loose control levers, component wear, or assembly errors. Compliance reduces the risk of in-flight seat malfunctions and supports regulatory adherence.

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