Airworthiness Directive 2000-09-03
one-timeAirworthiness Directives; Boeing Model 747-400 Series Airplanes Equipped With General Electric CF6-80C2 Series Engines
What this AD requires
This amendment supersedes an existing airworthiness directive (AD), applicable to certain Boeing Model 747-400 series airplanes, that currently requires various inspections and functional tests to detect discrepancies of the thrust reverser control and indication system, and correction of any discrepancy found. This amendment adds an appendix and revises certain actions in the existing AD. This amendment is prompted by a report indicating that completion of the cone brake test of the center drive unit is ineffective for certain airplanes. The actions specified in this AD are intended to ensure the integrity of the fail safe features of the thrust reverser system by preventing possible failure modes in the thrust reverser control system that can result in inadvertent deployment of a thrust reverser during flight.
Which aircraft AD 2000-09-03 applies to
Applies to Model 747-400 series airplanes with the thrust reverser center drive unit (CDU) cone brake. Test procedure (Boeing SB 747-78A2166 Rev 1, or 747-78A2113 Rev 2/3) depends on whether thrust reversers have been modified per Boeing Service Bulletin 747-78-2151 or a production equivalent. Terminating action for repetitive CDU cone brake tests required by AD 94-15-05. Note: airplanes with line numbers 1061 and subsequent, equipped with GE CF6-80C2 engines, had a third locking system installed in production (Production Revision Record 80452-102) and were not modified per SB 747-78-2151, which was a retrofit action for line numbers 700 through 1060 inclusive.
Whether AD 2000-09-03 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.