Service difficulty report · Pdu · Cessna 750

Difficulty date
December 19, 2008
Submitted
June 19, 2009
Operation
Air carrier
Aircraft
N986QS
Make and model
Cessna 750
Aircraft serial
7500086
Aircraft time
7,219 hours, 4,672 cycles
Part
Pdu
Part number
MP50G4
Part serial
508A
Condition
Inoperative
Part time
751 cycles
Stage of operation
CR
How discovered
O
Nature of condition
J
Precautionary procedure
O

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

What was found

AMBER CAS MESSAGE FLAPS FAIL ILLUMINATED IN FLIGHT (NO BIT CODES AVAILABLE) AND WOULD NOT REST. FLAPS FAILED IN THE UP POSTION/ THE SLATS DID NOT EXTENDED. FLAP PDU FAILED THE PDU CLUTCH CHECK IAW MM 27-50-00. REPLACED POWER DRIVE UNIT IAW MM 27-52-00. PERFORMED FLAPS MECHANICAL RIG AND ELECTRICAL RIG IAW MM 27-50-00. SYS OP'S CHECK'S GOOD IAW MM 27-50-00.

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