As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
(CAN) THE FLIGHT CREW WAS UNABLE TO START NR 1 ENGINE. NR 1 IGNITION EXCITER UNIT WAS DETERMINED TO HAVE FAILED. UPON INVESTIGATION IT WAS FOUND THAT THE CONNECTOR PLUG ATTACHMENT ON THE EXCITER BOX HAD DEBONDED CAUSING THE FAILURE. THE UNIT WAS REPLACED.