What was found
BOS - FLT 4877 - EMERGENCY LIGHTS INOPERATIVE. MAINTENANCE REMOVED AND REPLACED POWER SUPPLIES 20LN, 21LN, 22LN, 23LN, AND 24LN. OPS CHECK WAS GOOD AND AIRCRAFT WAS RETURNED TO SERVICE. (M)
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
BOS - FLT 4877 - EMERGENCY LIGHTS INOPERATIVE. MAINTENANCE REMOVED AND REPLACED POWER SUPPLIES 20LN, 21LN, 22LN, 23LN, AND 24LN. OPS CHECK WAS GOOD AND AIRCRAFT WAS RETURNED TO SERVICE. (M)