What was found
ON FIRST GEAR EXTENSION RIGHT MAIN GEAR INDICATED UNSAFE. ANTI-SKID WOULD NOT TEST EITHER. RECYCLED GEAR AND RIGHT MAIN GEAR ON F/O PANEL STILL INDICATED UNSAFE. S/O PANEL INDICATED ALL THREE GEAR DOWN AND LOCKED. ANTI-SKID TESTED OK. F/O RESEATED RIGHT MAIN GEAR LIGHT AND GOT POSITIVE GEAR DOWN INDICATION (GREEN LIGHT). LANDED WITH NO FURTHER PROBLEMS. INSPECTED RIGHT MAIN GEAR PROX SWITCHES AND LINKAGES, NO FAULTS FOUND. TESTED PROX BOX, BOX INDICATED FAULT IN 31 RIGHT POSITION. REPLACED PROX BOX AND TESTED OK PER TAFI 32-30-00. ANTI-SKID TESTED OK PER M/M 32-44-00.