Service difficulty report · Pump · Piper PA31350

Difficulty date
April 27, 2015
Submitted
September 14, 2015
Operation
Air carrier
Aircraft
N765KP
Make and model
Piper PA31350
Aircraft serial
318253012
Aircraft time
9,667 hours
Engine
Lyc TIO540J2B
Engine time
2,873 hours
Part
Pump
Part number
200F5002
Part serial
HQAN100FP
Condition
Leaking
Location
Lt Engine
Part time
991 hours
Stage of operation
IN
How discovered
V
Nature of condition
K
Precautionary procedure
O

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

What was found

WHILE PARKED ON THE RAMP, THE AIRPLANE WAS FOUND TO HAVE FUEL LEAKING FROM THE ACCESSORY CASE SEAL DRAIN LINE ON THE LT ENG. THE ENG DRIVEN FUEL PUMP WAS FOUND TO HAVE A SHAFT SEAL LEAK THAT SEALED ITSELF WHEN PRESS WAS APPLIED WITH THE BOOST PUMP OR BY RUNNING THE ENG. THE PUMP WAS REPLACED WITH SERVICEABLE. THIS IS THE 2ND INCIDENT OF IDENTICAL LEAKAGE THAT WE HAVE OBSERVED WITH THESE PUMPS.

More about the Piper PA-31-350