What was found
AIRCRAFT WAS GROUNDED: MAINTENANCE FOUND CABIN LIGHTING SYSTEM TRU1 C/B POPPED.CABIN LIGHTING INOP FOUND 33V AC ON C1 AT C/B C9343 CABIN LIGHTING SYS TRU 1 ALSO FOUND BURNT WIRING NEXT TO TB400. FOUND L FWD BOOST PUMP GROUND HANDLING C/B POPPED. TROUBLESHOT AND FOUND SM4184 SPLICE BURNT IN THE P320 PANEL. FOUND WIRE # W3241-0062-12 BURNT. FOUND WIRE # W3210-0014-12 BURNT. FOUND WIRE # W3210-0011-12 BURNT. FOUND WIRE # W3216-1102-22 BURNT. FOUND WIRE # W3212-0013-22 INSULATION NIKED. FOUND WIRE # 3211-0027-12 BUNRT. FOUND WIRE # 3241-0059-12 BURNT. FOUND WIRE # 3241-0010-12 BURNT. FOUND WIRE #W3217-1001-22 INSULATION CHAFFED. ACCOMPLISHED REPAIR TO WIRES ON SM4185 WIRES IAW SWPM 20-15-26, 20-30-12, WDM 24-51-41 AND ECO B1091AB.