What was found
(CAN) DRIVE END BEARING SEIZED DURING FLT, SPUN IN BEARING LINER. WORE OUTER DIAMETER OF BRG RACE DOWN TO POINT THAT ARMATURE BEGAN RUBBING ON STATOR. THIS WEAR CONTINUED UNTIL SUFFICIENT TORQUE BUILT UP TO SHEAR DRIVE SHAFT AT QUILL SECTION. TEARDOWN OF UNIT REVEALED THAT BRGS INSTALLED ARE BOGUS PARTS. CORRECT PART IS MADE BY THE OEM, APC, AND IS P/N 150SG1052B. BEARINGS FOUND WERE MARED 'JAF 6203RS JAPAN'. SEIZED BRG SHED ITS SEALS, EXPOSING BALLS. BOGUS BEARINGS HAVE TWO ROWS OF EIGHT BALLS, WHILE OEM PART HAS ONE ROW OF EIGHT BALLS. ACCORDING TO COMPONENT HISTORY CARD, UNIT WAS INSTALLED ON AN A/C WHEN IT WAS IMPORTED THE BEARINGS ARE BEING HELD IN QUARANTINE PENDING INSPECTION.