AD 47-42-12
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | The Boeing Company | DC-6 | Airworthiness Directives; DOUGLAS DC-6 |
| aircraft | The Boeing Company | DC-6A | Airworthiness Directives; DOUGLAS DC-6 |
| aircraft | The Boeing Company | DC-6B | Airworthiness Directives; DOUGLAS DC-6 |
Unsafe Condition
Failure of the rubber cushions on the reinforcing strap assembly of the astrodome due to inadequate fastening.
AI-generated summary from the source AD text. Verify against the official source before acting.
Required Actions
Remove existing rubber strap cushions (P/N 5249604-36), traces of cement, and adhering rubber from reinforcing strap assembly (P/N 5249604-38). Butt cushion assembly P/N 2356419 against pad P/N 5249604-42, drill four No. 40 holes through the strap, and attach with AN 426-AD-3-5 rivets. Reinstall the reinforcing strap assembly using eight AN 960-D-10L washers and eight AN 365-1032 nuts.
AI-generated summary from the source AD text. Verify against the official source before acting.
Compliance Time
not later than February 1, 1948
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Affected Aircraft
Douglas DC-6, DC-6A, DC-6B models with serial numbers 42866 and 42868 to 42875 inclusive.
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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