What was found
BOS - LEFT NR 1 DOOR EGRESS 'EXIT' LIGHT WILL NOT TEST. REMOVED AND REPLACED LEFT NR 1 BATTERY PACK, OPS CHECK GOOD IAW MM CHAP 33. (M)
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
BOS - LEFT NR 1 DOOR EGRESS 'EXIT' LIGHT WILL NOT TEST. REMOVED AND REPLACED LEFT NR 1 BATTERY PACK, OPS CHECK GOOD IAW MM CHAP 33. (M)