AD 48-06-05
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | The Boeing Company | C54-DC | Airworthiness Directives; DOUGLAS DC-4 and C-54 Aircraft |
| aircraft | The Boeing Company | C54A-DC | Airworthiness Directives; DOUGLAS DC-4 and C-54 Aircraft |
| aircraft | The Boeing Company | C54B-DC | Airworthiness Directives; DOUGLAS DC-4 and C-54 Aircraft |
| aircraft | The Boeing Company | C54D-DC | Airworthiness Directives; DOUGLAS DC-4 and C-54 Aircraft |
| aircraft | The Boeing Company | C54E-DC | Airworthiness Directives; DOUGLAS DC-4 and C-54 Aircraft |
| aircraft | The Boeing Company | C54G-DC | Airworthiness Directives; DOUGLAS DC-4 and C-54 Aircraft |
| aircraft | The Boeing Company | DC-4 | Airworthiness Directives; DOUGLAS DC-4 and C-54 Aircraft |
Unsafe Condition
Failure of the aileron hinge eyebolts and the rudder trim tab and elevator trim tab hinges and control horns.
AI-generated summary from the source AD text. Verify against the official source before acting.
Required Actions
Replace No. 3 hinge eyebolt P/N 1166013 with new eyebolt P/N 1357234 on applicable aileron assemblies. Replace elevator and rudder trim tab hinges and control horns with steel parts. Replace standard AN bolts with new special close tolerance high strength bolts using AN 310 nuts, AN 960 washers, and AN 380 cotter pins.
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 DC-4 and C-54 Aircraft with model designators C54-DC, C54A-DC, C54B-DC, C54D-DC, C54E-DC, C54G-DC, and DC-4.
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
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