What was found
ON DEPARTURE OUT OF RODN, THE GEAR DOOR 'NOT LATCHED' LIGHT ILLUMINATED. THE LANDING GEAR WAS CYCLED, AND THE WARNING LIGHT EXTINGUISHED. IN RJTY, MAINTENANCE CLEANED THE MLG DOOR UPLATCH SWITCHES, CLEANED AND LUBRICATED THE MLG DOOR UPLATCH ROLLERS IAW THE DC-8 MM. THE INDICATION AND DOOR UPLOCK OPERATION WERE NORMAL, AND THE AIRCRAFT WAS RETURNED TO SERVICE. (M)