What was found
GEAR UPLATCH CHECK WAS GOOD. ABOVE APPROXIMATELY 11,000 FT, THE GEAR DOOR OPEN LIGHT ILLUMINATED. RECYCLED THE LANDING GEAR, THE LIGHT REMAINED ILLUMINATED. ON DESCENT, BELOW 11,000 FT, THE GEAR DOOR OPEN LIGHT EXTINGUISHED. CHECKED MAIN LANDING GEAR DOOR RIGGING AND CLEARANCES, NO DISCREPANCIES NOTED PER DC-9 SUPP MM 32-60-3.