As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
WHILE CHANGING THE TBV ACTUATOR ON THE #2 ENG DISCOVERED THE L/H IGNITOR LEAD TO BE DAMAGED. GROUNDED - YES. REMOVED L/H IGNITION LEAD REF B737-800 AMM 74-21-01-000-801-F01 INSTALLED IGNITION LEAD REF AMM 74-11-400-801-F00 THROUGH STEP G3 CONTINUE AT STEP ( H ). PERFORMED IGNITION SYSTEM AUDIBLE TEST REF AMM 74-00-00-750-801-F00 TEST PASSED.