AD 2004-25-06
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | Boeing | 747-100 | Airworthiness Directives; Boeing Model 747-100, 747-100B, 747-100B SUD, 747-200B, 747-200C, 747-200F, and 747-300 Series Airplanes; and Model 747SP and 747SR Series Airplanes |
Unsafe Condition
Unexpected disconnect of the autopilot during operation in reduced vertical separation minimum (RVSM) airspace, induced by the passing of another airplane within 1,000 feet below the airplane, which may result in altitude deviation and aggressive evasive action.
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Required Actions
Revise the airplane flight manual to prohibit operation of the autopilot/flight director in command mode with performance management system selected on the speed mode switch during cruise in RVSM airspace.
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Compliance Time
Before further flight
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Affected Aircraft
Boeing Model 747-100, 747-100B, 747-100B SUD, 747-200B, 747-200C, 747-200F, 747-300 series airplanes; and Model 747SP and 747SR series airplanes equipped with a performance management system.
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Source: Official FAA Source ↗
Retrieved: Apr 6, 2026
Rights: U.S. Government Public Domain
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