AD 2005-23-18
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | Fokker | F27 Mark 050 | Airworthiness Directives; Fokker Model F27 Mark 050 Airplanes |
Unsafe Condition
Rupture of the bleed air supply duct, leading to hot bleed air leaking into the engine controls area, causing heat damage to control cables, electrical wiring, hydraulic components, and fuel lines, and consequent fire.
AI-generated summary from the source AD text. Verify against the official source before acting.
Required Actions
Inspect the bleed air supply ducts to determine if blanking plugs are present. Inspect the entire area of the engine nacelle for heat damage. Replace blanking plugs with clamping devices. If bleed air loss is evident, inspect adjacent components for heat damage and replace the bleed air supply duct assembly if necessary. Clean and inspect engine control cables for discoloration and apply corrosion-preventing compound if needed. Repair heat damage to components, wiring, or structures using an approved method.
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Compliance Time
Before further flight
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Affected Aircraft
All Fokker Model F27 Mark 050 airplanes.
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Source: Official FAA Source ↗
Retrieved: Apr 6, 2026
Rights: U.S. Government Public Domain
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