AD 2003-26-13
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | Boeing | 747 | Airworthiness Directives; Boeing Model 747 Series Airplanes |
Unsafe Condition
Leakage of hydraulic (flammable) fluid into an engine fire, which could result in an uncontrolled fire.
AI-generated summary from the source AD text. Verify against the official source before acting.
Required Actions
Identify the valves installed on the engine struts as hydraulic supply (fire) shutoff valves for the engine-driven pump. Take corrective action if necessary. Replace discrepant valves with serviceable parts.
AI-generated summary from the source AD text. Verify against the official source before acting.
Affected Aircraft
Boeing Model 747 series airplanes with specific valves installed on the engine struts.
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
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