What was found
AIRCRAFT IN BASE MAINTENANCE - EMERGENCY LIGHTS, CIDS (CABIN INTERCOMMUNICATION DATA SYSTEM) 1 EPSU SYTEM TEST, BATTERIES FAILED, SEAT PATH LIGHTS 1, 2, 5, 9, 10, 14, 15 INOP. REMOVED AND REPLACED EPSU 10WL (AALA202007159006), AND REPLACED EPSU BATTERY PACK 10WL (AALA202007159019), 11WL (AALA202007159020), 13WL (AALA202007159021) AND 17WL (AALA202007159022) PER AMM 33-51-38, OPERATIONAL CHECK GOOD. CIDS 1 EPSU SYSTEM TEST PASSED PER AMM 33-51-00.