As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
APU HAS REPORT OF START EGT OF 1000 DEGREES AND FAULT LIGHT ILLUMINATING WITH FAULT MESSAGE 49-41010 LOGGED ON CDU. ACFT GROUNDED. PERFORMED FIM TASKS NO PROBLEMS NOTED. REPLACED T2 AND P2 SENSORS (AMM REFERENCE 49-61-31 AND 49-52-31). REPLACED THE FFD SOLENOID REF MM 49-31-15 OPS & LEAK CHECKED GOOD.