AD Amdt-39-10267
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | Fokker | F27 Mark 050 | Airworthiness Directives; Fokker Model F27 Mark 050 Series Airplanes |
Unsafe Condition
Accumulation of ice in the engine air intake duct and subsequent ingestion of ice into the engine could result in engine power fluctuations and reduced controllability of the airplane.
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Required Actions
Modify the air outlet opening of the engine air bypass duct in the left and right bottom engine cowling in accordance with Fokker Service Bulletin SBF50-71-041. An alternative method of compliance may be used if approved by the FAA.
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Compliance Time
Within 3 months after the effective date of this AD
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Affected Aircraft
Fokker Model F27 Mark 050 series airplanes, serial numbers 20103 through 20296 inclusive, 20304, 20305, 20308, and 20311; 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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