AD 2008-24-01
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | Viking | Air Limited DHC-6 | Airworthiness Directives; Viking Air Limited DHC-6 Series Airplanes |
| aircraft | Aviat | Various | Airworthiness Directives; Viking Air Limited DHC-6 Series Airplanes |
Unsafe Condition
Three instances have occurred in which the aircraft took off with pre-mod 6/1676 flight control gust locks still installed, sometimes with disastrous results.
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Required Actions
Operators must incorporate de Havilland Modification 6/1676, which locks the control column forward (elevator nose down position). Operators must also incorporate Mod 6/1726, which adds a warning flag that masks essential flight instruments on the pilot's instrument panel.
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Compliance Time
Before further flight
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Affected Aircraft
Viking Air Limited DHC-6 Series Airplanes with pre-mod 6/1676 flight control gust locks installed.
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Source: Official FAA Source ↗
Retrieved: Apr 4, 2026
Rights: U.S. Government Public Domain
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