AD 2005-20-31
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | Boeing | 747-400 | 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 |
| aircraft | McDonnell Douglas | MD-11 and MD-11F | 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 |
Unsafe Condition
An anomaly in the Honeywell Flight Management System (FMS) one million word (1M or 700K) data bases (9104 cycle or earlier) could cause an airplane to deviate from the published approach to the runway, leading to premature ground contact before reaching the runway.
AI-generated summary from the source AD text. Verify against the official source before acting.
Required Actions
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.
AI-generated summary from the source AD text. Verify against the official source before acting.
Compliance Time
Before further flight.
AI-generated summary from the source AD text. Verify against the official source before acting.
Affected Aircraft
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, Model 757-200, -200PF, -200CB, and -300 series airplanes, and Model 767-200, -300, -300F, and -400ER series airplanes, certificated in any category.
AI-generated summary from the source AD text. Verify against the official source before acting.
Source: Official FAA Source ↗
Retrieved: Apr 6, 2026
Rights: U.S. Government Public Domain
This site is not affiliated with or endorsed by the FAA. Always verify with official sources.