AD 2007-20-01
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | Boeing | 747-100B SUD | Airworthiness Directives; Boeing Model 747-100B SUD, 747-200B, 747-200C, 747-200F, 747-300, 747-400, 747-400D, 747-400F, and 747SP Series Airplanes |
Unsafe Condition
Arcing inside the fuel tanks in the event of a lightning strike or high-powered short circuit, which could result in a fuel tank explosion or fire.
AI-generated summary from the source AD text. Verify against the official source before acting.
Required Actions
Reconfigure the wire bundle clamps and seal the ends of certain fasteners inside the auxiliary fuel tank, main fuel tanks, and surge fuel tanks. Seal the ends of certain fasteners inside the main fuel tanks.
AI-generated summary from the source AD text. Verify against the official source before acting.
Compliance Time
Within 60 months after the effective date of this AD.
AI-generated summary from the source AD text. Verify against the official source before acting.
Affected Aircraft
Boeing Model 747-100B SUD, 747-200B, 747-200C, 747-200F, 747-300, 747-400, 747-400D, 747-400F, and 747SP 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 4, 2026
Rights: U.S. Government Public Domain
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