What was found
AFTER TAKEOFF, LEFT GEAR INTRANS DOOR, F/E LEFT GEAR OR DOOR LIGHTS ON GEAR RETRACTED. AIRCRAFT DUMPED FUEL AND RETURNED TO BQN WITH A NORMAL LANDING. WHEN AIRCRAFT RETURNED TO GATE, MAINTENANCE NOTED LEFT GEAR DOOR OPEN. MX TROUBLESHOT AND FOUND MLG DOOR ACT BAD. ACTUATOR WAS REMOVED AND REPLACED IAW MM 32-33-01. OPS CHECKED AND LEAK CHECKED GOOD. AIRCRAFT RETURNED TO SERVICE. (M)