Electrical Power - Observer Station Circuit Breaker Panel - Inspection
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AI-generated summary of the official EASA document. Verify against the PDF before acting.
What to do
Operators of Boeing MD-11 and MD-11F airplanes must perform the required inspections and modifications as detailed in Boeing Alert Service Bulletin MD11-24A204, Revision 2, by February 1, 2022. Any damaged wires or missing components identified must be repaired or replaced promptly following the service bulletin instructions to comply with the AD.
Summary
Federal Register Volume 86, Number 246, titled 'Electrical Power - Observer Station Circuit Breaker Panel - Inspection' is a final rule airworthiness directive issued by the FAA affecting all Boeing Model MD-11 and MD-11F airplanes. It addresses wire chafing incidents on the observer station circuit breaker panel that could lead to electrical power loss and potential in-flight fire.
What changed
This new airworthiness directive introduces mandatory inspections and modifications for the right observer station upper main circuit breaker panel and associated wiring on Boeing MD-11 and MD-11F airplanes. It requires visual inspections for missing parts and wire damage, verification of bracket installation, panel modification, and on-condition repairs as specified in Boeing Alert Service Bulletin MD11-24A204, Revision 2.
Why it matters
This directive is critical for aviation professionals because it mitigates the risk of electrical system failures and in-flight fires caused by wire chafing and arcing. Operators and maintenance teams must ensure compliance to maintain aircraft safety and avoid potential operational disruptions or hazards during flight.
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New ADs and bulletins for Boeing MD-11 and MD-11F, summarized like this page, every Monday.