As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
WITH LEFT IGNITION SYSTEM IN OVERRIDE, THE LEFT ENGINE DID NOT START. THE CIRCUIT BREAKER C/B U42 WAS REESTABLISHED BUT FAILURE CONTINUED. THE LEFT IGNITION C/B WAS DEFERRED IAW MEL 74-A BUT DURING PUSH BACK, THE LEFT ENGINE IGNITION WAS OUT SERVICE AGAIN. THE LEFT SIDE EXCITER IGNITION WAS REPLACED IAW MM 74-10-01, TESTED CORRECT. DURING OVERNIGHT SERVICE, IGNITION SYSTEM WAS TESTED IAW MM 74-10-01, ALL CORRECT.