What was found
ENERGENCY LIGHTS ARE INOPERATIVE: OVERHEAD LIGHTS OVER SEATS 3 & 7, LIGHT UNDER SEAT 3. ATTEMPTED CHARGING IAW QRH, NO IMPROVEMENT. MAIN POWER ON, LIGHT UNDER SEAT 3 WOULD ILLUMINATE WHILE 2 OVERHEAD LIGHTS REMAINED OFF. WITHOUT MAIN POWER. NONE OF THE 3 LIGHTS WOULD WORK. R & R NR 1, 2, 3, & 4 POWER SUPPLIES WITH NEW IAW AMM 33-50-06. OPS CHKD IAW AMM 33-50-00, LIGHTS ABOVE SEATS 3 & 7 INOP. REPLACED NR 7 SEAT LIGHT WIRING IAW 5PM 20-30-15 & IWM 25-92-08. REPLACED NR 3 LIGHT CONNECTOR IAW SRM 20-30-15 & IWM 25-92-08. REPAIRED NR 3 SEAT LIGHT WIRING IAW IWM 25-92-08. CONDUCTED AN OPS CHK OF EMERGENCY LIGHTS, NO DEFECTS NOTED REF AMM 33-50-00.