As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING ENGINE START THE LT IGNITION WOULD NOT OBTAIN IGNITION, SWITCH TO RT IGNITER AND ENGINE STARTED OK. ACFT GROUNDED. PERFORMED FIM TASK 74-21, TASK 806, DETERMINED LT IGNITER PLUG DEFECTIVE. REPLACED LEFT IGNITER PLUG IAW AMM TASK 74-21-02-000-801-F00 AND 74-21-02-400-801-F00. REPAIR CONFIRMATION IAW TASK 74-00-00-750-801-F00, TEST GOOD.