What was found
FOUR MINUTES AFTER TAKEOFF THE MAIN OIL PRESSURE WARNING LIGHT CAME ON FOLLOWED SIX SECONDS LATER BY THE OIL PRESSURE DROPPING TO ZERO. ENGINE SHUTDOWN INTITIATED AND THE AIRCRAFT WAS DIVERTED TO BDL. ENGINE OIL WAS DISCOVERED ON THE FUSELAGE, TAIL, AND THE INNER AND OUTER ENGINE COWLINGS. IT WAS FOUND THAT ONLY EIGHT OUNCES OF OIL WERE IN THE RESERVOIR. ENGINE WAS REMOVED AND SENT TO PWC FOR REPAIR. THE TEARDOWN REPORT FOUND THAT AN OIL GALLERY PLUG PN ST3744 WAS NOT PROPERLY SWAGGED IN PLACE AND HAD COME LOOSE ALLOWING OIL TO ENTER THE STARTER/GENERATOR GEARSHAFT, ESCAPE INTO THE STARTER DRAIN AND SUBSEQUENTLY OUT THE DRAIN MAST.