AD 2015-17-08
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | Bombardier | Various | Airworthiness Directives; Bombardier, Inc. Airplanes |
Unsafe Condition
An open circuit in the nose wheel steering system may not be adequately detected and annunciated, leading to uncommanded and unannunciated nose wheel steering.
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Required Actions
Install new cable assemblies with a pull-down resistor in accordance with Bombardier Modsum 4-126585, following the 'Procedure' section of Bombardier Service Bulletin 84-32-122, Revision A.
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Compliance Time
Within 2,000 flight cycles or 12 months after the effective date of this AD, whichever occurs first.
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Affected Aircraft
Bombardier, Inc. Model DHC-8-400, -401, and -402 series airplanes, serial numbers 4001 through 4448 inclusive.
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Source: Official FAA Source ↗
Retrieved: Apr 6, 2026
Rights: U.S. Government Public Domain
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