What was found
KDAY - FLIGHT 212 - AFTER GEAR RETRACTION THE DOOR NOT LATCHED LIGHT AND THE RIGHT ALTERNATE GEAR DOOR LIGHT REMAINED ILLUMINATED. GEAR UPLATCH FAILURE PROCEDURE WAS ACCOMPLISHED. NO HELP WITH SEVERAL GEAR CYCLES. MAINTENANCE PERFORMED AN ALTERNATE GEAR DOOR CHECK AND GEAR SWING, NO DEFECTS NOTED. MAINTENANCE REMOVED AND REPLACED THE RIGHT HAND GEAR DOOR PROX SWITCH, PROXIMITY UNIT AND GREASED THE GEAR UPLATCH MECHANISM AS A PRECAUTION. (M)