What was found
CREW REPORTED, WITH LANDING GEAR HANDLE IN THE UP POSITION, THE DOOR NOT LATCH LIGHT STAYED ON AND AFT LIGHT ON FE PANEL WERE NOT ON. CYCLED GEAR TWICE, NO HELP. PLACED GEAR IN UP LATCH POSITION AND LIGHT WENT OUT GIVING A GOOD UP LATCH CHECK. REPLACED LEFT AND RIGHT GEAR DOOR PROX SWITCHES AND FOUND BROKEN SPLICE ON LT PROX SWITCH. SYSTEM OPS CHECKS GOOD PER DC8 MM 32-31-04 PAGE 503 B.