AD 2012-06-20
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | Fokker | Services B | Airworthiness Directives; Fokker Services B.V. Airplanes |
Unsafe Condition
The fuel crossfeed valves cannot be controlled when only emergency electrical power is available, an unwanted configuration of the indication logic for the fuel fire shutoff valve was introduced during production, and current fuel crossfeed indications are based on selection by the flightcrew instead of actual position of the crossfeed valve actuators.
AI-generated summary from the source AD text. Verify against the official source before acting.
Required Actions
Modify the crossfeed valve control and power supply, the crossfeed indication logic and power supply, and the indication logic for the fuel fire shutoff valve; modify the overhead panel; and for certain airplanes, modify the transfer logic of the center wing fuel tank.
AI-generated summary from the source AD text. Verify against the official source before acting.
Compliance Time
Within 24 months after the effective date of this AD.
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Affected Aircraft
Fokker Services B.V. Model F.28 Mark 0070 and 0100 airplanes, certificated in any category, serial numbers 11244 through 11585 inclusive.
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Source: Official FAA Source ↗
Retrieved: Apr 6, 2026
Rights: U.S. Government Public Domain
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