What was found
DURING ROTATION OF THE M/R HUB WHILE PERFORMING ROUTINE MAINTENANCE A NOTICEABLE (SQUEAK) WAS HEARD COMING FROM THE M/R TRANSMISSION. SUBSEQUENT INVESTIGATION ALLOWED FOR THE DISCOVERY OF THE INPUT PINION HAVING SIDE SLOPE AND THE SQUEAK WAS HEARD WITH A LISTENING DEVICE INSIDE THE TRANS AND LEAD TO THE DISCOVERY OF THE LOWER CHIP PLUG HAVING A LOT OF METAL YET NONE HAD MADE CONTACT. REMOVED TRANS, PULLED INPUT PINION AND IT AND THE BEVEL GEAR SPALLED.