AD 2023-18-03
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | Bombardier Inc. and de Havilland | DHC-3 | Airworthiness Directives; Viking Air Limited (Type Certificated Previously Held by Bombardier Inc. and de Havilland, Inc.) Airplanes |
| aircraft | Bombardier | Inc | Airworthiness Directives; Viking Air Limited (Type Certificated Previously Held by Bombardier Inc. and de Havilland, Inc.) Airplanes |
| aircraft | Viking | Various | Airworthiness Directives; Viking Air Limited (Type Certificated Previously Held by Bombardier Inc. and de Havilland, Inc.) Airplanes |
| aircraft | de Havilland | Various | Airworthiness Directives; Viking Air Limited (Type Certificated Previously Held by Bombardier Inc. and de Havilland, Inc.) Airplanes |
| aircraft | Aviat | Various | Airworthiness Directives; Viking Air Limited (Type Certificated Previously Held by Bombardier Inc. and de Havilland, Inc.) Airplanes |
Unsafe Condition
Corrosion, wear, and fatigue-related degradation in aging aircraft, which could lead to structural failure with consequent loss of control of the airplane.
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Required Actions
Incorporating into the existing maintenance records for your airplane the actions and associated thresholds and intervals, including life limits, specified in Parts 2 and 3 of Viking PSM 1-3-5, Revision IR, completing all the initial tasks identified in Viking PSM 1-3-5, Revision IR, and reporting to Viking any Level 2 or Level 3 corrosion findings.
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Compliance Time
Before further flight
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Affected Aircraft
All Viking Model DHC-3 airplanes.
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Source: Official FAA Source ↗
Retrieved: Apr 6, 2026
Rights: U.S. Government Public Domain
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