Airworthiness DirectiveEASA AD US-2019-22-02

Superseded by FAA AD 2025-01-08

Published: Dec 16, 2019
Effective: Jan 16, 2020
Deadline: Jan 16, 2020

Boeing 747 200B 200C 200F 300 400

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

What to do

Affected operators must perform repetitive inspections of the horizontal movement system and actuators on the Captain's and First Officer's seats, inspect seat part and serial numbers, and carry out any required corrective actions. They should consider the optional terminating action by installing serviceable seats with redesigned horizontal actuators where applicable. Compliance with this AD is mandatory by January 16, 2020, the effective date of the directive.

Summary

FAA Airworthiness Directive 2019-22-02 is a final rule addressing uncommanded fore and aft movement of the Captain's and First Officer's seats on all Boeing 747-200B, 747-200C, 747-200F, 747-300, 747-400, 747-400D, 747-400F, 747-8F, and 747-8 series airplanes. The directive mandates repetitive inspections and checks of the horizontal movement system and actuators, detailed inspections for certain airplanes, and applicable corrective actions. It also provides an optional terminating action for certain seat models to resolve the unsafe condition.

What changed

This new airworthiness directive introduces repetitive horizontal actuator identifications and checks of the horizontal movement system for the Captain's and First Officer's seats, along with inspections to determine seat part and serial numbers. It requires operators to perform on-condition corrective actions and offers an optional terminating action involving installation of serviceable seats with redesigned actuators. The AD supersedes previous service bulletins by mandating specific inspections and maintenance procedures to address the unsafe seat movement issue.

Why it matters

This AD 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 and maintenance teams must ensure compliance to maintain flight safety and regulatory adherence. The directive clarifies inspection procedures and corrective actions, helping reduce operational risks and avoid potential accidents related to seat malfunctions.

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