As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
(CAN) PUMP WAS SENT FOR OVERHAUL. INTERNAL INSPECTION REVEALED THAT THE ARMATURE HAD BEEN MODIFIED BY REDUCING THE ARMATURE SHAFT SIZE AND SUBSTITUTING THE ORIGINAL BEARING WITH A COMMERCIAL BEARING THAT HAD THE SAME OUTSIDE DIAMETER, BUT A SMALLER INSIDE DIAMETER,TO ACCOMODATE THE REDUCED SHAFT SIZE. DUE TO OTHER PROBLEMS WITH THE PUMP, THE UNIT WAS DEEMED BEYOND REPAIR. UNIT REMOVED FROM SERVICE.