AD 2023-03-15
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | Boeing | Company | Airworthiness Directives; The Boeing Company Airplanes |
Unsafe Condition
Potential hot air leakage from original fiberglass fabric material or high temperature composite material TADD that can cause damage to the center wing fuel tank secondary fuel barrier coating and primary sealant, which can cause fuel leakage into an ignition zone, possibly resulting in a fire or explosion.
AI-generated summary from the source AD text. Verify against the official source before acting.
Required Actions
Perform repetitive inspection of the TADD, report any TADD damages to Boeing, and replace the TADD at 16,000-flight-hour intervals. This AD also requires repetitive replacement of the TADDs and removes the structural inspections of the center fuel tanks. In addition, this AD prohibits the installation of affected parts.
AI-generated summary from the source AD text. Verify against the official source before acting.
Compliance Time
Within 16,000 flight hours
AI-generated summary from the source AD text. Verify against the official source before acting.
Affected Aircraft
The Boeing Company Model 747-100, 747-100B, 747-100B SUD, 747-200B, 747-200C, 747-200F, 747-300, 747-400, 747-400D, 747-400F, 747SR, and 747SP series airplanes, excluding variable numbers RT631, RT743, RT876, and RT632.
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.