AD 46-23-02
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | Univair Aircraft Corporation | 415-C | Airworthiness Directives; ERCO Model 415-C, -CD and -D Aircraft |
| aircraft | Univair Aircraft Corporation | 415-CD | Airworthiness Directives; ERCO Model 415-C, -CD and -D Aircraft |
| aircraft | Univair Aircraft Corporation | 415-D | Airworthiness Directives; ERCO Model 415-C, -CD and -D Aircraft |
Unsafe Condition
The flexible hose in the engine breather line may have an amber inner liner, which is susceptible to contraction and possible clogging.
AI-generated summary from the source AD text. Verify against the official source before acting.
Required Actions
Inspect the flexible hose in the engine breather line immediately. Replace the hose if it shows evidence of clogging or after a maximum of 25 flight hours if the inner liner is amber but still in satisfactory condition. Use hose supplied by Erco or equivalent such as AN 884 or AN 878.
AI-generated summary from the source AD text. Verify against the official source before acting.
Compliance Time
immediately
AI-generated summary from the source AD text. Verify against the official source before acting.
Affected Aircraft
ERCO Model 415-C, -CD, and -D aircraft with serial numbers 113 to 263, inclusive.
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
This site is not affiliated with or endorsed by the FAA. Always verify with official sources.