As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
CSS: 1 APU WOULD NOT START (WITH FAULT LIGHT) AT 340. 2 APU WOULD NOT START (FAILED TO START AT 340) 2 TOTAL FAILED STARTS. GROUNDED - YES. APU STARTED NORMALLY ON GROUND. PLACED ON MEL 49-99A. REF B737-900 AMM 49-11-00-860-801. PER SEAMC OK TO CLEAR MEL 49-99A. CSS PASSED AS REPORTED TO SEAMC.