What was found
(CAN) AT O/H SHAFT IN USE WAS NOT CORRECT P/N FOR THIS MODEL GENERATOR. THIS SHAFT IS 0.12 INCHES LONGER THAN THE CORRECT ONE, AND HAS A DIFFERENT LOCATION POINT FOR THE FAN AT THE ANTI-DRIVE END. COMMUTATOR WEAR WAS MEASURED TO BE ABOUT 3 TIMES NORMAL SINCE LAST O/H AND LIKELY ATTRIBUTED TO VIBRATION CAUSED BY POOR FIT OF THE FAN. NOTE: THIS SUP HAS NO FURTHER INFORMATION THAT CAN BE OBTAINED. IT HAS NOWBEEN CLOSED AS NO FURTHER INFORMATION IS AVAILBLE.