AD 50-07-01
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | Univair Aircraft Corporation | 415-C | Airworthiness Directives; ERCO Model 415C, 415CD and 415D Airplanes |
| aircraft | Univair Aircraft Corporation | 415-CD | Airworthiness Directives; ERCO Model 415C, 415CD and 415D Airplanes |
| aircraft | Univair Aircraft Corporation | 415-D | Airworthiness Directives; ERCO Model 415C, 415CD and 415D Airplanes |
Unsafe Condition
Failure of the elevator trim tab control wire could lead to elevator flutter.
AI-generated summary from the source AD text. Verify against the official source before acting.
Required Actions
Install elevator trim tab stop and spring, Erco P/N 415-SK-287 and 415-22035.
AI-generated summary from the source AD text. Verify against the official source before acting.
Compliance Time
by September 1, 1950
AI-generated summary from the source AD text. Verify against the official source before acting.
Affected Aircraft
Univair Aircraft Corporation Models 415C, 415CD, and 415D airplanes incorporating adjustable elevator trim tabs.
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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