Summary
The FAA proposes to adopt a new airworthiness directive (AD) for all The Boeing Company Model MD-11 and MD-11F airplanes. This proposed AD was prompted by reports indicating incidents of wires chafing against the inboard upper corner of the observer station circuit breaker panel. This proposed AD would require, depending on airplane configuration, doing a general visual inspection of the right observer station upper main circuit breaker panel and wiring for certain missing parts; doing an inspection of the right observer station upper main circuit breaker panel to determine if a certain bracket part number is installed; doing a general visual inspection of certain wire assemblies for any damage; modifying the observer station upper main circuit breaker panel; and applicable on-condition actions. The FAA is proposing this AD to address the unsafe condition on these products.