AD 48-14-04
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | The Boeing Company | C54-DC | Airworthiness Directives;DOUGLAS C-54 |
| aircraft | The Boeing Company | C54A-DC | Airworthiness Directives;DOUGLAS C-54 |
| aircraft | The Boeing Company | C54B-DC | Airworthiness Directives;DOUGLAS C-54 |
| aircraft | The Boeing Company | C54D-DC | Airworthiness Directives;DOUGLAS C-54 |
| aircraft | The Boeing Company | C54E-DC | Airworthiness Directives;DOUGLAS C-54 |
Unsafe Condition
Fire hazard due to flame from a zone 1 fire entering the engine accessory section through the space between the tailpipe shroud and cowling.
AI-generated summary from the source AD text. Verify against the official source before acting.
Required Actions
Install a tailpipe shroud deflector on each tailpipe shroud assembly. AN 3-3A bolts may be substituted for AN 3C-3A bolts as per Service Bulletin C-54-289 addendum.
AI-generated summary from the source AD text. Verify against the official source before acting.
Compliance Time
November 1, 1948
AI-generated summary from the source AD text. Verify against the official source before acting.
Affected Aircraft
Douglas C-54 Series Aircraft Prior to Model C-54G
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.