EASA AD US-2022-03-21: Fuel - Maintenance or Inspection Program - Revision

What to do

Affected operators must revise their maintenance or inspection programs within 180 days of the AD's effective date to incorporate the updated airworthiness limitations. They should review the applicability of each ALI task to their specific aircraft and comply with inspection intervals accordingly. Operators must also ensure that inspections and maintenance actions follow the revised program to maintain regulatory compliance and safety.

Summary

Fuel - Maintenance or Inspection Program - Revision is a Federal Aviation Administration (FAA) final rule airworthiness directive (AD 2022-03-21) that applies to certain Boeing 787-8, 787-9, and 787-10 airplanes. It addresses updated airworthiness limitations related to fuel tank ignition prevention and the nitrogen generation system. The directive mandates revisions to existing maintenance or inspection programs to incorporate these new or more restrictive requirements.

What changed

This new AD introduces updated and more restrictive airworthiness limitations for fuel tank ignition prevention and the nitrogen generation system on affected Boeing 787 models. It requires operators to revise their maintenance or inspection programs accordingly. The AD clarifies applicability for specific airplane line numbers and confirms compliance requirements for individual Airworthiness Limitation Instruction (ALI) tasks.

Why it matters

This AD is critical for aviation professionals because it mitigates the risk of fuel tank explosions caused by ignition sources or increased flammability exposure due to latent failures or maintenance actions. Operators and maintenance organizations must comply to ensure continued airworthiness and safety of Boeing 787 aircraft. Compliance also ensures adherence to FAA regulations and avoids potential operational disruptions or penalties.

What to do

Summary

What changed

Why it matters

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