As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
ON TAXI IN, APU START RESULTED IN FAULT LIGHT ILLUM. GROUNDED - YES. ACCOMP APU BITE CK REF B737-9 AMM 49-61-00. RECORDED FAULT MSG 49-41254 SCU SHOWS START SYS INOP IN EXISTING FAULTS. ACCOMP B737-9 IFIM 49-40-00-810-818 STARTED APU 2EA TIMES WITH NO FAULT LIGHT OR MAINT MSG APU STARTS OPS NORMAL REF AMM 49-11-00 FAULT NO LONGER ACTIVE INTERMITTENT FAULT O.K. FOR SVC.