AD 55-22-02
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | Univair Aircraft Corporation | 415-C | Airworthiness Directives; ERCO 415-C, -CD and -D Aircraft |
| aircraft | Univair Aircraft Corporation | 415-CD | Airworthiness Directives; ERCO 415-C, -CD and -D Aircraft |
| aircraft | Univair Aircraft Corporation | 415-D | Airworthiness Directives; ERCO 415-C, -CD and -D Aircraft |
Unsafe Condition
Leakage in terneplate fuselage fuel tanks and terneplate wing fuel tanks due to corrosion or material degradation.
AI-generated summary from the source AD text. Verify against the official source before acting.
Required Actions
Inspect tanks for leakage every 25 flight hours. Replace leaking tanks with stainless steel or aluminum alloy tanks before next flight. Replace terneplate tanks with approved materials if not already done.
AI-generated summary from the source AD text. Verify against the official source before acting.
Compliance Time
before the next flight
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Affected Aircraft
Univair Aircraft Corporation 415-C, -CD, and -D aircraft, serial numbers 113 through 2468 (fuselage tanks) and 113 through 2622 (wing tanks)
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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