SDR DXTA200601241

Service difficulty report · Flap System · Cessna 750

Difficulty date: February 12, 2006
Submitted: February 23, 2006
Operation: Air carrier
Aircraft: N984QS
Make and model: Cessna 750
Aircraft serial: 7500084
Aircraft time: 5,869 hours, 3,689 cycles
System (JASC): 2750 · Trailing Edge Flap Control System
Part: Flap System
Condition: Malfunctioned
Location: Te Flaps
Stage of operation: CL
How discovered: O
Nature of condition: F
Precautionary procedure: A

As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.

What was found

FLAPS FAILED IN UP POSITION DEPARTING KBUF, WOULD NOT RESET, DIVERTED TO CMH. VISUALLY INSPECTED FLAPS AND FLAPWELL COMPONENTS. LUBRICATED ACTUATOR BALLSCREWS PER CE-750 M/M 12-20-05. RESET BITE CODES ON FLAP CONTROLLER. CHECKED RESOLVER CONVERTER VOLTAGE OUT PUTS UNDER NORMAL AND FREEZING CONDITIONS. NO DEFECTS NOTED. CYCLED FLAPS SEVERAL TIMES AND VERIFIED NO MORE BITE CODES WERE TRIPPED. PERFORMED ROTARY TEST OF FLAPS. CHECKS GOOD. COULD NOT DUPLICATE ORIGINAL FAULT, C/W IAW CE-750 M/M 27-50-00.

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