AD Amdt-39-10267

final rule
Data completeness: 70%

Airworthiness Directives; Fokker Model F27 Mark 050 Series Airplanes

AD Number
Amdt-39-10267
Status
final_rule
Effective Date
Product Category
engine
Docket
Docket No. 97-NM-255-AD
FR Citation
62 FR 68159

Applicability

TypeManufacturerModelDetails
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.

AI-generated summary from the source AD text. Verify against the official source before acting.

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.

AI-generated summary from the source AD text. Verify against the official source before acting.

Compliance Time

Within 3 months after the effective date of this AD

AI-generated summary from the source AD text. Verify against the official source before acting.

Affected Aircraft

Fokker Model F27 Mark 050 series airplanes, serial numbers 20103 through 20296 inclusive, 20304, 20305, 20308, and 20311; certificated in any category.

AI-generated summary from the source AD text. Verify against the official source before acting.

Source: Official FAA Source ↗

Retrieved: Apr 6, 2026

Rights: U.S. Government Public Domain

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