What was found
DURING HEAVY MAINTENANCE, CHECKS FOUND EPSU'S 11WL,13WL,& 14WL TO HAVE LOW VOLTAGE NEED TO BE RECHARGED OR REPLACED. REMOVAL OF EPSU BATTERIES 11WL, 13WL, & 14WL WAS PERFORMED IAW AMM TASK 33-51-38-000-002-A REV 74. INSTALLATION OF THE EPSU BATTERIES 11WL,13WL, & 14WL WAS PERFORMED IAW AMM TASK 33-51-38-400-002-A REV 74 OPC OF THE EMERGENCY LIGHTS WAS PERFORMED IAW AMM TASK 33-51-00-710-004-A REV 74. SUPPLEMENTAL INFORMATION TO FOLLOW.