What was found
AFTER LANDING GEAR RETRACTION, DOOR NOT LATCHED AND RIGHT DOOR UNSAFE LIGHT ILLUMINATED 3 TIMES AND THEN EXTINGUISHED. VISUALLY INSPECTED RIGHT GEAR DOOR UP LATCH MECHANISM, NO DEFECTS NOTED. LUBED MECHANISM, PERFORMED TEST OF UP LATCH AS PER M/M 32-31-4, CHECKED GOOD EACH TIME.