AD 80-20-03
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | Fokker Services | F27 Mark 050 | Airworthiness Directives; FOKKER-VFW B.V. Model F-27 Series Airplanes |
| aircraft | Fokker Services | F27 Mark 100 | Airworthiness Directives; FOKKER-VFW B.V. Model F-27 Series Airplanes |
| aircraft | Fokker Services | F27 Mark 200 | Airworthiness Directives; FOKKER-VFW B.V. Model F-27 Series Airplanes |
| aircraft | Fokker Services | F27 Mark 300 | Airworthiness Directives; FOKKER-VFW B.V. Model F-27 Series Airplanes |
| aircraft | Fokker Services | F27 Mark 400 | Airworthiness Directives; FOKKER-VFW B.V. Model F-27 Series Airplanes |
| aircraft | Fokker Services | F27 Mark 500 | Airworthiness Directives; FOKKER-VFW B.V. Model F-27 Series Airplanes |
| aircraft | Fokker Services | F27 Mark 600 | Airworthiness Directives; FOKKER-VFW B.V. Model F-27 Series Airplanes |
| aircraft | Fokker Services | F27 Mark 700 | Airworthiness Directives; FOKKER-VFW B.V. Model F-27 Series Airplanes |
Unsafe Condition
Propeller auto-feathering caused by inadvertent potential being introduced into the propeller auto-feathering circuit.
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Required Actions
Rework cockpit floor and wiring in receptacles, replace, route, and connect new wiring, finish shielding per specified service bulletins. Install new shielded wires between engine firewall and partial pressure bulkhead as required. Equivalent means of compliance must be approved by the Chief, Aircraft Certification Staff.
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Compliance Time
Within the next 500 hours time in service after the effective date of this AD
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Affected Aircraft
FOKKER-VFW B.V. Model F-27 series airplanes, serial numbers 10105 through 10553, with specific exceptions for incorporation of Fokker Service Bulletins F27/61-9(G6), F27/61-10(G7), and F27/61-29, revision 2.
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Source: Official FAA Source ↗
Retrieved: Apr 8, 2026
Rights: U.S. Government Public Domain
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