AD 46-39-05
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | The Boeing Company | C54-DC | DOUGLAS Model C-54B and C-54 Series Airplanes |
| aircraft | The Boeing Company | C54A-DC | DOUGLAS Model C-54B and C-54 Series Airplanes |
| aircraft | The Boeing Company | C54B-DC | DOUGLAS Model C-54B and C-54 Series Airplanes |
| aircraft | The Boeing Company | C54D-DC | DOUGLAS Model C-54B and C-54 Series Airplanes |
| aircraft | The Boeing Company | C54E-DC | DOUGLAS Model C-54B and C-54 Series Airplanes |
| aircraft | The Boeing Company | C54G-DC | DOUGLAS Model C-54B and C-54 Series Airplanes |
Unsafe Condition
The main fuel line supporting brackets at wing Stations 357, 378, and 399 are subject to vibration failure.
AI-generated summary from the source AD text. Verify against the official source before acting.
Required Actions
Replace the main fuel line supporting brackets at wing Stations 357, 378, and 399 with redesigned brackets. Replace United Carr clips at wing Station 378 with Adel clips.
AI-generated summary from the source AD text. Verify against the official source before acting.
Compliance Time
not later than December 1, 1946
AI-generated summary from the source AD text. Verify against the official source before acting.
Affected Aircraft
The Boeing Company Model C54-DC, C54A-DC, C54B-DC, C54D-DC, C54E-DC, C54G-DC airplanes having the C-54B fuel system.
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.