What was found
WHILE INSTALLING EPSU BATTERIES, EPSU BOX WOULD NOT TEST AT DOOR 1R (12WL). CORRECTIVE ACTION: REMOVED AND REPLACED EPSU BATTERY, PER W/C 3351-4002-HAL. REMOVED 1R AND 4R DOOR SLIDE AND PERFORMED WIRING CHECKS. R & R 1R DOOR SLIDE, PER AMDS CARD 2561-9403. RII C/W.