As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
APU FAULT LIGHT ILLUMINATED DURING APU START ON TAXI IN APU DID NOT START. ACCOMP APU BITE TEST ON CDU. FOUND FAULT CODE 49 41011 (NO FLAME SHUTDOWN) ACCOMP. FAULT ISOLATION PROCEDURES. OPERATED APU. APU STARTED & OPS CK'D GOOD. ACCOMP APU BITE TEST AGAIN. NO FAULTS NOTED. APU OK FOR SERVICE PER FIM TASK 49 40 00 810 802.