AD 2010-13-11
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | Fokker | Services B | Airworthiness Directives; Fokker Services B.V. Model F.28 Mark 0070 and 0100 Airplanes |
| aircraft | Aviat | Various | Airworthiness Directives; Fokker Services B.V. Model F.28 Mark 0070 and 0100 Airplanes |
Unsafe Condition
Fuel fire shut-off valve actuators P/N 9409122 are susceptible to freezing, which affects valve operation. Also, the failure rate of these actuators is higher than expected, potentially preventing the flight crew from closing the fuel fire shut-off valve in case of an engine fire.
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Required Actions
Replace all P/N 9409122 fuel fire shut-off valve actuators with new P/N 53-0027 actuators. Prohibit the installation of P/N 53-0013 actuators as previously required.
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Compliance Time
Within the compliance time established for SBF100-76-020, as retained by this AD.
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Affected Aircraft
Fokker Services B.V. Model F.28 Mark 0070 and 0100 airplanes with serial numbers 11244 through 11441, equipped with P/N 9409122 fuel fire shut-off valve actuators.
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Source: Official FAA Source ↗
Retrieved: Apr 6, 2026
Rights: U.S. Government Public Domain
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