What was found
TWO MAINT MESSAGES FAULTED. MESSAGE 256241 ESCAPE SLIDE LT/EPSU (16WL) DOOR 3, & MESSAGE 256241 ESCAPE SLIDE LT/EPSU (17WL) DOOR 4. PERFORMED TROUBLESHOOTING TASKS IAW TSM 25-62-00-810-802A; INSPECTED L3 AND L4 DOOR SLIDES FOR LOOSE CONNECTIONS. FOUND LOOSE CONNECTOR ON DOOR L3. RETESTED SYS. MESSAGE 256241 ESCAPE SLIDE LT /EPSU, 16WL0 DOOR 3 CLEARED. SECOND MESSAGE DID NOT CONTINUED TROUBLESHOOTING, FOUND DEAD BATTERY ON EPSU (17WL) . CHANGED BATTERY AND PERFORMED TEACH IN PROCEDURE IAW AMM 33-51-00- 820-801A. TESTED, NO HELP. SWAPPED EPSU 17WL WITH 18WL AND PERFORMED TEACH IN PROCEDURE FAULT REMAINS THE SAME. CHECKED FOR GROUND IN CONNECTOR 17WL, A NO GROUND SIGNAL, REPLACED L4 DOOR SLIDE PACK IAW JC 2562-9403 EMERGENCY LIGHT SYS TEST OK.