What was found
DURING HEAVY MAINTENANCE, INOPERABLE ELPU FWD LT IN PASSENGER CABIN, REF AEROMAN N/R 2020-360662. REMOVED AND REPLACED EMERGENCY LIGHT POWER UNIT, IAW E190 AMM 33-50-01-000-801-A. OPERATIONS CHECK GOOD, IAW E190 AMM 33-50-00-710-801-A.