As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
ACTT 1990.5. PILOT ATTEMPTED TO START NR 1 ENGINE AT 12 PERCENT NG. STARTER DROPPED OFF-LINE. ON SUBSEQUENT ATTEMPT, ONLY ENGINE IGNITER OPERATED. DURING TROUBLESHOOTING, FOUND BOTH GROUND CIRCUIT DIODES HAD FAILED. REPLACED BOTH DIODES, OPS CHECK OF START SYSTEM CHECKED GOOD. REF: OPER CONTROL NR MXIA627G.