AD 2004-05-01 R1
final rule
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | Viking Air Limited | DHC-3 | Airworthiness Directives; Bombardier Inc. Model Otter DHC-3 Airplanes |
Unsafe Condition
Elevator servo-tab
Required Actions
Prohibit operation unless STC SA01059SE (elevator servo-tab with redundant control linkage) is installed.
AI-generated summary from the source AD text. Verify against the official source before acting.
Compliance Time
Before further flight
AI-generated summary from the source AD text. Verify against the official source before acting.
Affected Aircraft
Bombardier Inc. Model Otter DHC-3 airplanes with STC SA3777NM (Pratt and Whitney PT6A-34/-135 engine installation).
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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