AD 2004-13-09
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | Bombardier | DHC-8-301 | Airworthiness Directives; Bombardier Model DHC-8-301, -311, and -315 Airplanes |
Unsafe Condition
An incorrect angle of attack (AOA) indication to the stall warning system in flight, which could result in an inadvertent stall and consequent loss of control of the airplane.
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Required Actions
Inspect the right and left AOA sensor vanes to determine whether modification (MOD) 'J' has been incorporated. If not, perform a movement test of the AOA sensor vane. If the movement test result is 110 grams or more, replace the sensor vane with a reworked MOD 'J' sensor vane according to specified timelines. No person may install a sensor vane, part number 861CAB, unless MOD 'J' has been incorporated.
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Compliance Time
Within 1,000 flight hours or 18 months after the effective date, whichever occurs first.
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Affected Aircraft
Bombardier Model DHC-8-301, -311, and -315 airplanes, serial numbers 100 through 583, inclusive; certificated in any category.
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Source: Official FAA Source ↗
Retrieved: Apr 4, 2026
Rights: U.S. Government Public Domain
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