What was found
(CAN) WHILE CARRYING OUT SERVICE BULLETIN 4182, SPLIT SHAFT INSTALLATION, THE REAR CASE HAD TO BE OPENED. A 3/4" X 1/4" ROUND PLUG THREADED ON ONE END WAS FOUND LYING IN THE BOTTOM OF THE CASE. A PRATT & WHITNEY SERVICE REP WAS ON SITE & IDENTIFIED THE PLUG AS HAVING CAME FROM THE END OF THE STARTER GENERATOR SHAFT. THE STARTER GENERATOR WAS INSPECTED & THE PLUG WAS FOUND PROPERLY INSTALLED. THERE WAS NO WAY OF DETERMINING WHERE THE PLUG CAME FROM OR HOW LONG IT HAD BEEN IN THE CASE. IT IS A LUCAS MODIFICATION TO PUT THE PLUG IN THE STARTER GENERATOR SHAFT. TO GET INTO THE CASE THE PLUG WOULD HAVE TO HAVE GONE THROUGH THE AIR OIL SEPARATOR & THEN DROP INTO THE CASE.