What was found
UPON INITIAL GEAR EXTENSION NOSE GEAR DOWN AND LOCKED LIGHT DID NOT ILLUMINATE. ABNORMAL PROCEDURE, CYCLED LANDING GEAR AFTER SECOND EXTENSION, ALL GEAR INDICATED DOWN. FOUND LOOSE CANNON PLUG ON NOSE LIMIT SW. CLEANED AND INSTALLED CANNON PLUG, OPS CK GOOD IAW DC-8 MM 32-60-0.