What was found
(CAN) PRIOR TO RUN-UP, DURING THE FUEL PUMP PRESSURE AND LEAK TEST, THE FUEL PUMP WAS LEAKING FUEL FROM THE PUMP CASE DRAIN, WHEN THE BOOSTER PUMPS OR THE AUXILIARY PUMP WERE ACTIVATED. THE ENGINE WAS STARTED WITH USUAL FIRE PRECAUTIONS OBSERVED. THE FUEL LEAK DID NOT STOP. THE ENGINE WAS SHUTDOWN AND THE FUEL PUMP REMOVED. THE OVERHAUL SHOP REPORTED THE PUMP SEAL INSIDE DID NOT SEAT. THE FUEL PUMP FROM THE TX'D ENGINE WAS INSTALLED AND THE PUMP AND ENGINE TESTED SERVICEABLE.