AD 94-09-04
Unsafe Condition
Flight control computers (FCC) with part numbers 622-7476-321, 622-7476-331, or 622-7476-401 may cause inadvertent loss of airspeed during a level change descent with auto throttles engaged and manual flight.
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Required Actions
Replace FCCs with part numbers 622-7476-321, 622-7476-331, or 622-7476-401 using either P/N 622-7476-402 (per SBF100-22-029) or P/N 622-7476-411 (per SBF100-22-037). Remove specific AFM limitations if present. Ensure installations follow referenced service bulletins.
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Compliance Time
Within 60 days after the effective date of this AD (May 20, 1994).
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Affected Aircraft
Fokker Model F28 Mark 0100 series airplanes, serial numbers 11244 through 11364, inclusive.
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Source: Official FAA Source ↗
Retrieved: Apr 8, 2026
Rights: U.S. Government Public Domain
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