Equipment / Furnishings - Seat Track Fitting Nuts - Re-torque
- Published
- Effective
- Deadline
AI-generated summary of the official EASA document. Verify against the PDF before acting.
What to do
Operators of affected Boeing 787-8, 787-9, and 787-10 airplanes must re-torque each free-standing flight attendant seat track fitting nut within six months of February 7, 2024, following the procedures in Boeing Service Letter 787-SL-25-025. Requests for alternative methods of compliance can be submitted to the FAA for approval. Maintenance schedules should be adjusted to accommodate this task promptly to avoid safety risks.
Summary
The Federal Aviation Administration Airworthiness Directive 2023-25-10 is a final rule addressing certain Boeing 787-8, 787-9, and 787-10 airplanes. It mandates re-torquing of the free-standing flight attendant seat track fitting nuts due to a quality issue where these nuts were found under-torqued during production. This directive aims to ensure the structural integrity of flight attendant seats to prevent safety hazards.
What changed
This new airworthiness directive introduces a requirement to re-torque each free-standing attendant seat track fitting nut to a specified torque value. It applies specifically to Boeing 787-8, 787-9, and 787-10 models and is based on Boeing Service Letter 787-SL-25-025 dated September 6, 2022. The directive sets a compliance time of six months from the effective date for completing the re-torque action.
Why it matters
This AD is critical for aviation professionals as it addresses a potential safety risk where under-torqued seat track fitting nuts could cause flight attendant seats to detach during high load events. Such detachment could injure crew members and obstruct emergency exits, impacting evacuation procedures. Operators, maintenance, and compliance teams must ensure timely corrective actions to maintain aircraft safety and regulatory compliance.
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