Service difficulty report · Gasket · Pilats PC1245

Difficulty date
July 14, 2001
Submitted
June 22, 2001
Operation
Air carrier
Aircraft
N325MW
Make and model
Pilats PC1245
Aircraft serial
325
Part
Gasket
Part number
RG9570R1
Part serial
B4039
Condition
Leaking
Location
Relief Valve
Stage of operation
IN
How discovered
V
Nature of condition
K
Precautionary procedure
K

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

What was found

A RANDOM INSPECTION OF THE FUEL PUMP REVEALED FUEL LEAKING FROM THE ENGINE DRIVEN LOW PRESSURE FUEL PUMP RELIEF VALVE GASKET. THIS PUMP INCORPORATES THE SAME (OR VERY SIMILAR) RELIEF VALVE AND GASKET ASSEMBLY USED ON ROTARY FUEL PUMP WHICH WAS THE SUBJECT OF THE AD DIRECTING COMPLIANCE WITH SB RELIEF VALVE COVER CAP SCREW RECURRING TORQUE CHECK. A TORQUE CHECK OF THE CAP SCREWS WAS ACCOMPLISHED IAW SB AND ALL WERE FOUND BELOW THE TORQUE SPECIFICATION. OTHER PUMPS INSPECTED WERE ALSO FOUND TO BE LEAKING AND UNDER TORQUE.