As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
PUMP RETURNED FOR OVERHAUL AND SB COMPLIANCE. FOUND BEYOND REPAIR AND FOD BOLT WAS WEDGED BETWEEN VANES OF IMPELLER SECTION ALONG WITH WASHER FRAGMENTS. INTERNAL DAMAGE TO IMPELLER VANES AND GOUGED HOUSING. UNIT COULD HAVE SEIZED AND SHEARED SHAFT.