AD 2004-21-06
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | Bombardier | Inc | Airworthiness Directives; deHavilland Inc. Models DHC-2 Mk. I and DHC-2 Mk. II Airplanes and Bombardier Inc. Model (Otter) DHC-3 Airplanes |
Unsafe Condition
Improper lockwire security on firewall connector plugs could lead to loss of ignition systems during flight, resulting in engine failure.
AI-generated summary from the source AD text. Verify against the official source before acting.
Required Actions
Visually inspect the firewall connector plugs for proper lockwire security. Replace or modify the plugs as appropriate.
AI-generated summary from the source AD text. Verify against the official source before acting.
Compliance Time
Initially inspect within the next 100 hours time-in-service after December 6, 2004.
AI-generated summary from the source AD text. Verify against the official source before acting.
Affected Aircraft
deHavilland Inc. Models DHC-2 Mk. I and DHC-2 Mk. II airplanes (all serial numbers) and Bombardier Inc. Model (Otter) DHC-3 airplanes powered by radial engines (all serial numbers).
AI-generated summary from the source AD text. Verify against the official source before acting.
Source: Official FAA Source ↗
Retrieved: Apr 6, 2026
Rights: U.S. Government Public Domain
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