What was found
KDFW - FLT 22 - AFTER TAKEOFF AT KDAY DOORS NOT LATCH LIGHT CAME ON UPON GEAR RETRACTION WITH RIGHT ALT GEAR DOOR WARNING LIGHT ON. RECYCLED SEVERAL TIMES NO HELP. PROCEEDED TO DESTINATION. MAINTENANCE CLEANED AND LUBED GEAR DOOR UP LATCH AND INSPECTED GEAR DOOR UPLATCH MECHANISM AND RIGGING. NO DEFECT NOTED. JACKED AIRPLANE AND SWUNG GEAR 10 TIMES. OPS CHECKED GOOD NO DEFECT NOTED. (M)