Service difficulty report · Pressure Switch · Pilats PC1247E

Difficulty date
November 18, 2016
Submitted
November 22, 2016
Operation
Air carrier
Aircraft
N531AF
Make and model
Pilats PC1247E
Aircraft serial
1531
Aircraft time
1,749 hours, 1,671 cycles
Engine
Pwa PT6A11
Engine time
1,749 hours, 1,671 cycles
Part
Pressure Switch
Condition
Failed
Location
Fuel System
Stage of operation
CR
How discovered
O
Nature of condition
J
Precautionary procedure
A

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

What was found

AFTER DEPARTING,IN CRUISE FLIGHT THE FLIGHT CREW REPORTED BOTH FUEL PUMPS CYCLING ON & OFF 5 SEC. INTERVALS. COMPLETED QRH PROCEDURE, CYCLING PERSISTED. THE AIRCRAFT MADE AN UNSCHEDULED LANDING WHERE IT LANDED SAFELY. THE MAINTENANCE CREW ON SITE INSPECTED THE AIRFRAME FUEL FILTER AND FOUND NO DEFECTS IAW AMM 12-B-28-20-01-00A-250A-A. THE FUEL LOW PRESSURE SWITCH WAS REMOVED AND REPLACED IAW AMM 12-ZB-28-20-02-00A-820A-A LEAK CHECKS AND OPS CHECKS WERE PERFORMED SATISFACTORY. HIGH POWER ENGINE RUNS WERE ALSO PERFORMED WITH NO DEFECTS NOTED.