AD 2011-18-11
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | Bombardier | Inc | Airworthiness Directives; Viking Air Limited (Type Certificate No. A-815 Formerly Held by Bombardier Inc. and de Havilland, Inc.) |
| aircraft | Viking | Various | Airworthiness Directives; Viking Air Limited (Type Certificate No. A-815 Formerly Held by Bombardier Inc. and de Havilland, Inc.) |
| aircraft | de Havilland | Various | Airworthiness Directives; Viking Air Limited (Type Certificate No. A-815 Formerly Held by Bombardier Inc. and de Havilland, Inc.) |
Unsafe Condition
Excessive free-play in the elevator control tabs could develop, leading to loss of tab control linkage and severe elevator flutter. Such elevator flutter could lead to possible loss of control.
AI-generated summary from the source AD text. Verify against the official source before acting.
Required Actions
Inspect the elevator control tabs for discrepancies. Take necessary corrective actions to bring all discrepancies within acceptable tolerances. Report certain inspection results to the FAA.
AI-generated summary from the source AD text. Verify against the official source before acting.
Compliance Time
Within 50 flight hours for airplanes previously affected by AD 2011-05-02.
AI-generated summary from the source AD text. Verify against the official source before acting.
Affected Aircraft
Viking Air Limited (Type Certificate No. A-815 formerly held by Bombardier Inc. and de Havilland, Inc.) Model DHC-3 airplanes, all serial numbers, certificated in any category.
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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