AD 2011-12-14
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
The fuel sense line from the overflow valves may touch the adjacent fuel-quantity indication-probe. Under certain conditions, this may result in an ignition source in the wing tank vapor space, potentially leading to a wing fuel tank explosion and consequent loss of the airplane.
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Required Actions
Perform a general visual inspection of the routing and clamping of the sense line hose and wiring conduit hose to each wing tank overflow valve. If incorrect routing or clamping is found, install two brackets next to the overflow valve, modify the hose routing, and install clamps to keep the hoses in position. Revise the maintenance program to include a Critical Design Configuration Control Limitation (CDCCL).
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Compliance Time
Within 84 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.
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Source: Official FAA Source ↗
Retrieved: Apr 6, 2026
Rights: U.S. Government Public Domain
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