Service difficulty report · Valve · Cessna 525B

Difficulty date
December 7, 2011
Submitted
December 9, 2011
Operation
Air carrier
Aircraft
N428CS
Make and model
Cessna 525B
Aircraft serial
525B0165
Aircraft time
4,142 hours, 2,956 cycles
Part
Valve
Part number
991242339
Part serial
1131
Condition
Inoperative
Location
Hydraulic Sys
Part time
3,200 hours, 2,278 cycles
Stage of operation
CR
How discovered
O
Nature of condition
F, G, J
Precautionary procedure
A

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

What was found

DURING FLIGHT, FLAPS DID NOT MOVE WITH HANDLE SELECTED TO 15 DEGREES. UNABLE TO LOWER LANDING GEAR AND SPEED BRAKES WERE INOPERATIVE. AN EMERGENCY WAS DECLARED. LANDING GEAR WAS EXTENDED USING THE EMERGENCY BLOW DOWN PROCEDURE. ACFT DIVERTED. LANDING WAS UNEVENTFUL. MX TROUBLESHOT SYS TO A FAULTY HYD LOADING VALVE. VALVE WAS REPLACED, SYS WAS SERVICED AND BLED. A SUCCESSFUL SYS OPS CHECK WAS PERFORMED. ACFT WAS RETURNED TO SERVICE.

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