AD 53-11-02
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | Viking Air Limited | DHC-2 Mk.I | Airworthiness Directives; de Havilland Model DHC-2 (Beaver) Aircraft |
| aircraft | Viking Air Limited | DHC-2 Mk.II | Airworthiness Directives; de Havilland Model DHC-2 (Beaver) Aircraft |
| aircraft | Viking Air Limited | DHC-2 Mk.III | Airworthiness Directives; de Havilland Model DHC-2 (Beaver) Aircraft |
Unsafe Condition
Chafing of the engine oil sump by section assemblies (P/N C2-E-105ND and C2-E-107ND) of the accessory firewall.
AI-generated summary from the source AD text. Verify against the official source before acting.
Required Actions
Incorporate an enlarged flange clearance as soon as possible but not later than the next 100 hours.
AI-generated summary from the source AD text. Verify against the official source before acting.
Compliance Time
not later than the next 100 hours
AI-generated summary from the source AD text. Verify against the official source before acting.
Affected Aircraft
de Havilland Model DHC-2 (Beaver) Aircraft, Serial Numbers 1 to 445 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
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