AD 75-23-09
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | The Boeing Company | 747-200C Series | BOEING 747-200C and 747-200F Series Airplanes |
| aircraft | The Boeing Company | 747-200F Series | BOEING 747-200C and 747-200F Series Airplanes |
Unsafe Condition
Failure of the nose cargo door latch system could result in unexpected opening of the door during flight, leading to structural damage or loss of cargo.
AI-generated summary from the source AD text. Verify against the official source before acting.
Required Actions
Before further flight, and after each nose cargo door operation, close the door ensuring latch pins are extended and the green light is on. Pull and collar specific circuit breakers (C1407/28V DC and optionally C1629-C1634). Placard control panels indicating power removal. Verify all 16 latches are closed per Boeing's dispatch procedures. Incorporate FAA-approved modification via Boeing Service Bulletin 747-52-2117 for termination.
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
Boeing 747-200C and 747-200F series airplanes certificated in all categories.
AI-generated summary from the source AD text. Verify against the official source before acting.
Source: Official FAA Source ↗
Retrieved: Apr 8, 2026
Rights: U.S. Government Public Domain
This site is not affiliated with or endorsed by the FAA. Always verify with official sources.