AD 2010-01-11
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
Wear and tear of the backlash remover mechanism in Goodrich Part Numbers 23400-3B and 23400-7 elevator booster control units (BCU), and corrosion on some components in other BCU, which can cause a (partly) blocked operation of the elevator system in the normal (hydraulic) mode and deteriorated elevator control when the BCU is in MANUAL mode.
AI-generated summary from the source AD text. Verify against the official source before acting.
Required Actions
Inspect the backlash remover of the elevator booster control unit to determine the displacement of the pivot bolt. If necessary, replace the elevator booster control unit. Depending on the measurement of the displacement, compliance time for replacement ranges from before further flight to 3,000 flight cycles.
AI-generated summary from the source AD text. Verify against the official source before acting.
Compliance Time
Before further flight or within 3,000 flight cycles, depending on the measurement of the displacement of the pivot bolt.
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Affected Aircraft
Fokker Services B.V. Model F.28 Mark 0070 and Mark 0100 airplanes, all serial numbers, certificated in any category.
AI-generated summary from the source AD text. Verify against the official source before acting.
Source: Official FAA Source ↗
Retrieved: Apr 4, 2026
Rights: U.S. Government Public Domain
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