AD 47-10-24
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | Lockheed Aircraft Corporation | 49-46 | LOCKHEED Model 49 |
Unsafe Condition
Failure of the cross-feed relief valve could result in excessive fuel pressure in the crossfeed line adjacent to No. 4 cross transfer valve.
AI-generated summary from the source AD text. Verify against the official source before acting.
Required Actions
Install a thermal relief valve and bypass line in the fuel crossfeed line adjacent to No. 4 cross transfer valve.
AI-generated summary from the source AD text. Verify against the official source before acting.
Compliance Time
prior to June 1, 1947
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Affected Aircraft
Lockheed Aircraft Corporation Model 49 serial numbers up to and including 2088
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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