As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
(CAN) APU QUIT ON PUSHBACK, OIL LEAK OBSERVED. FOUND APU COMPRESSOR / TURBINE HAD A NON CONTAINED FAILURE CAUSING SEVERE DAMAGE. (TURBINE BLADES FOUND IN APU COMPARTMENT). REPLACED APU AS PER MM 49-10-00 REPLACED FUEL HEATER AS PER MM 49-31-01 CROSSOVER DUCT CHECKED FOR FOD (NONE FOUND)