As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
ETOPS SIGNIFICANT SYSTEM: APU FAULT LIGHT ON START. MAINT MESSAGE 49-31016, OVERTEMP SHUT DOWN. PERFORMED BITE TEST OF APU IAW 737-800 FIM 49-60 TASK 801. FOUND MESSAGE 49-1010, 49-31016. ACCOMPLISHED T/S IAW 737-800 FIM 49-40 TASK 801. OPS CHECKS NORMAL. THIS CLEARS DMI PLACARD REMOVED NOTE APU DC START HAD SLOW ACCELERATION TIME ON 1ST ATTEMPT.