AD 2003-25-03
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | Bombardier | DHC-8-400 | Airworthiness Directives; Bombardier Model DHC-8-400, -401, and -402 Airplanes |
Unsafe Condition
Failure of the forward engine mount, which could result in reduced structural integrity of the nacelle and engine support structure.
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Required Actions
Within 100 flight cycles after the effective date, inspect the forward engine mount assemblies on the left and right engine nacelles for pre-production assemblies. If pre-production assemblies are found, perform follow-on corrective actions, including detailed inspections for cracking and rework or replacement if necessary. Any replacement due to cracking must be done before further flight.
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Compliance Time
Within 100 flight cycles after the effective date.
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Affected Aircraft
Bombardier Model DHC-8-400, -401, and -402 airplanes; serial numbers 4005, 4006, 4008 through 4016 inclusive, 4018 through 4051 inclusive, and 4053; certificated in any category.
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Source: Official FAA Source ↗
Retrieved: Apr 6, 2026
Rights: U.S. Government Public Domain
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