What was found
KOAK - FLT 1 - AFTER GEAR RETRACTION, THREE GREEN LIGHTS EXTINGUISHED, DOORS NOT LATCHED AND GEAR NOT LATCHED RED LIGHTS ILLUMINATED. ON POST FLIGHT INSPECTION, FOUND TIRE MARKS ON DOOR. INDICATING RIGHT MLG DOOR IS NOT OPENING. RETURNED TO KOAK. MAINTENANCE REMOVED AND REPLACED THE RIGHT MLG DOOR CONTROL VALVE AND RIGGED PER MAINTENANCE MANUAL 32-31-5 SWUNG GEAR, OPS CHECKS NORMAL. (M)