As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
APU RELIABILITY COLD START; C-SAT= -59 SAT; FL= 400 NR OF ATTEMPTS 2; SUCCESSFUL. ON FIRST START ATTEMPT RECEIVED AN "APU DOOR" STATUS MESSAGE. APU START ON GROUND NORMAL, NO STATUS MESSAGE PRESENT IAW AMM 49-1-01 IAW MCC 3 START ATTEMPTS ALLOWED; OK FOR ETOPS OPERATION.