AD 2004-06-08
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | Bombardier | DHC-8-401 and -402 | Airworthiness Directives; Bombardier Model DHC-8-401 and -402 Airplanes |
Unsafe Condition
A short circuit on the aileron/rudder trim control panel could cause a runaway condition of the rudder trim actuator, resulting in reduced controllability of the airplane.
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Required Actions
Modify the wiring of the rudder trim switch. Inspect all wiring on the back of the aileron/rudder trim control panel for chafing. Replace any chafed wiring with new wiring.
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Compliance Time
Before further flight.
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Affected Aircraft
Bombardier Model DHC-8-401 and -402 airplanes.
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Source: Official FAA Source ↗
Retrieved: Apr 6, 2026
Rights: U.S. Government Public Domain
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