AD 47-21-20
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | Sky Enterprises, Inc. | RC-3 | Airworthiness Directives; Republic Model RC-3 Aircraft |
Unsafe Condition
Excessive loss of oil through oil pressure gage line in case of its failure.
AI-generated summary from the source AD text. Verify against the official source before acting.
Required Actions
Install a restrictor fitting at the engine end of the oil pressure gage line.
AI-generated summary from the source AD text. Verify against the official source before acting.
Compliance Time
not later than the next 25 hours of operation subsequent to July 1, 1947, and in any case not later than September 1, 1947
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Affected Aircraft
Republic Model RC-3 Aircraft Serial Numbers 426 Through 484, Except 446, 447, 452, 455, 460, 468, 471, 473, 475, 480, 481 and 483.
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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