Service difficulty report · Pressure Switch · Cessna 680A

Difficulty date
October 2, 2023
Submitted
October 4, 2023
Operation
Air carrier
Aircraft
N626Q
Make and model
Cessna 680A
Aircraft serial
680A0164
Aircraft time
4,341 hours, 2,868 cycles
Part
Pressure Switch
Part number
99144882
Part serial
1825580
Condition
Defective
Location
Zone 100
Stage of operation
CL
How discovered
C
Nature of condition
O
Precautionary procedure
K

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

What was found

FUEL PRESS LOW R AMBER CAS: FUEL PRESSURE LOW-R INTERMITTANT DURING CLIMB OUT. APPEARED MOTIVE FLOW WOULD FAIL FOR 3OR 4 SECONDS AND THEN RESUME WORKING. FOLLOWED QRH AND TURNED ON R BOOST PUMP. CMC SHOWS INTERMITTENT FUEL PRESSURE SWITCH. RAN ENGINE, NO FAULT AND FUEL PRESSURE TEST PASSED. ORDERED FUEL PRESSURE SWITCH AND O-RING EMOVED AND REPLACED RH ENGINE FUEL PRESSURE SWITCH WITH NEW SWITCH, OPS AND LEAK CHECKS GOOD. REF. CE-680A M.M. 73-10-05.

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