As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
APU IN FLIGHT START ATTEMPT. FIRST ATTEMPT AT FL380 UNSUCCESSFUL FAULT LIGHT. SECOND ATTEMPT UNSUCCESSFUL W/ HIGH EGT FAULT FL380. NO FURTHER ATTEMPTS MADE. BITE CHECK SHOW MAINT MESSAGE 49 31016. REF FIM TASK 49 30 00 810 803. STEP E (1) SUSPECT AN INTERMITTENT FAULT. STARTING APU 3 TIMES OPS NORMAL. OK FOR SERVICE.