Airworthiness Directive 2011-10-02
one-timeAirworthiness Directives; The Boeing Company Model 747-400, 747-400D, and 747-400F Series Airplanes Equipped With General Electric CF6-80C2 or Pratt & Whitney PW4000 Series Engines
What this AD requires
We are adopting a new airworthiness directive (AD) for the products listed above. This AD requires modifying certain thrust reverser control system wiring to the flap control unit (FCU). This AD was prompted by a report of automatic retraction of the leading edge flaps due to indications transmitted to the FCU from the thrust reverser control system during takeoff. We are issuing this AD to prevent automatic retraction of the leading edge flaps during takeoff, which could result in reduced climb performance and consequent collision with terrain and obstacles or forced landing of the airplane.
Which aircraft AD 2011-10-02 applies to
Applies only to airplanes equipped with General Electric CF6-80C2 series engines or Pratt & Whitney PW4000 series engines, as applicable.
Whether AD 2011-10-02 actually applies to your aircraft (by serial and installed parts) and whether it’s already complied with comes from that aircraft’s records.
How AD compliance is recorded
A valid compliance record (14 CFR 43.9) states:
Tailplate reads a tail number’s logbooks and matches every applicable AD — including this one — to its compliance evidence, with recurring next-due dates computed.
Look up a tail number →Read the full directive (Federal Register)Applicability is derived from the FAA directive corpus and is advisory, not a legal airworthiness determination. Compliance is established only from an aircraft’s actual records.