What was found
(CAN) A/C ON APPROACH WHEN CREW NOTED LEFT OIL PRESSURE FLUCTUATING. CREW RPTED PRESSURE FLUCTUATING UP TO 25 PSI&AVERAGING 30 PSI LOWER THAN RIGHT ENGINE. NO MENTION OF WARNINGS OR OTHER ACTION TAKEN. MAINT FOUND LEFT ENGINE TO BE 5 QTS LOW OF OIL. ENGINE SERVICED&RUN WITH AG AXIS LEAK PORTS OPEN. GE REP&FSR WITNESSED MUCH FLUID NOTED FROM J AXIS PORT, CONSIDERABLE STREAM COMING FROM IT&ENGINE SHUTDOWN. THISENGINE OF CONFIG THAT DID NOT HAVE CARBON SEAL&RUNNER ON THAT SHAFT. O RINGS WERE REPL&PUMP REINST ENGINE SERVICED PER GE RECOMMENDATIONS&RUN AGAIN. TIME WHEN OIL TANK CAP REMVD, QUART OR MORE OF OIL CAME OUT OF IT. THROUGH FURTHE