As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
APU WILL NOT START. GROUNDED - YES. CK'D AND REL PER MEL 49-1B. FAULT MESSAGE 49-41012 NO APU ROTATION SHUTDOWN. NO EVIDENCE OF HEAT DAMAGE OR DELAMINATION. STARTED APU AND PERFORMED BITE CHECK OF CDU NO CURRENTS FAULTS LOGGED. STARTED APU 5 TIMES WITH NO ISSUES. RAN APU AND INSPECTED NO DEFECTS NOTED.