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Airworthiness Directive 2005-20-31

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Official AD 2005-20-31 · FR doc 05-19938 · 2005-10-05 · appliance

Airworthiness Directives; Honeywell Flight Management System (FMS) One Million Word (1M or 700K) Data Bases (9104 Cycle or Earlier), as Installed in, but Not Limited to, McDonnell Douglas Model MD-11 and MD-11F Airplanes, Boeing Model 747-400 Series Airplanes, and Boeing Model 757 and 767 Airplanes

What this AD requires

The FAA is rescinding an existing airworthiness directive (AD) that applies to Honeywell FMS one million word (1M or 700K) data bases (9104 cycle or earlier) as installed in, but not limited to McDonnell Douglas Model MD-11 and MD-11F airplanes, Boeing Model 747-400 series airplanes, and Boeing Model 757 and 767 airplanes. That AD requires a revision to the FAA-approved Airplane Flight Manual (AFM) and installation of a placard to prohibit the use of Nondirectional Beacon (NDB) approaches for landing. That AD was prompted by an anomaly in the Honeywell FMS one million word (1M or 700K) data bases (9104 cycle or earlier). We issued that AD to prevent an airplane deviating from the published approach to the runway, which could lead to premature ground contact before reaching the runway. Since we issued that AD, we have determined that the Honeywell FMS one million word (1M or 700K) databases (9104 cycle or earlier) no longer exist on any of the affected airplanes.

Which aircraft AD 2005-20-31 applies to

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Applies to Honeywell Flight Management System (FMS) one million word (1M or 700K) data bases, cycle 9104 or earlier. Installed in, but not limited to, McDonnell Douglas MD-11 and MD-11F airplanes; Boeing 747-400 series; 757-200/-200PF/-200CB/-300 series; and 767-200/-300/-300F/-400ER series airplanes, certificated in any category

Whether AD 2005-20-31 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:

Method of compliance — The specific action taken (inspected, replaced, modified) and to what revision.
Date — When the work was done.
Aircraft time — Total time in service / tach at compliance — how recurring next-due is computed.
Signature & certificate — The A&P/IA who returned it to service, with certificate number.
Is AD 2005-20-31 complied with on your aircraft?

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.