What was found
INSPECTION TYPE: N/A, SUPPLEMENTAL SDR, EMERGENCY LIGHTS WILL NOT ILLUMINATE. DEFERRED EMERGENCY LIGHT SYSTEM, IAW MEL 33-50-4. REPLACED BATTERY SUPPLY FOR T/S PURPOSES, NO HELP, SUSPECT FAULTY SWITCH. PLACARD INSTALLED. DMP C/W. REPLACED RELAY R2-5700 EMERGENCY LIGHTS BATT PACK TEST AND REPLACED S1-346 EMERGENCY LIGHTS CONTROL SWITCH, IAW WDM 33-51-01. OPERATIONS CHECK OK, IAW AMM 33-50-00. REVERSED DMP. IPC: 33-51-05-01.