What was found
DEN - UPON PUSHBACK, THE LEFT ENGINE WOULD NOT START. RETURNED TO THE GATE, MAINTENANCE REPLACED THE STARTER AND CONTROL VALVE. OPERATIONAL CHECKS GOOD. AIRCRAFT RETURNED TO SERVICE.
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
DEN - UPON PUSHBACK, THE LEFT ENGINE WOULD NOT START. RETURNED TO THE GATE, MAINTENANCE REPLACED THE STARTER AND CONTROL VALVE. OPERATIONAL CHECKS GOOD. AIRCRAFT RETURNED TO SERVICE.