AD 47-10-26
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | Lockheed Aircraft Corporation | 49-46 | LOCKHEED Model 49 |
Unsafe Condition
Flap drain line routing through the aspirator could cause hydraulic fluid leakage and system malfunction.
AI-generated summary from the source AD text. Verify against the official source before acting.
Required Actions
Reroute flap and fan motor drain lines to return directly to the main hydraulic system and install check valves at the connection points.
AI-generated summary from the source AD text. Verify against the official source before acting.
Compliance Time
prior to June 1, 1947
AI-generated summary from the source AD text. Verify against the official source before acting.
Affected Aircraft
Lockheed Aircraft Corporation Model 49-46, serial numbers up to and including 2075.
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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