What was found
DURING CLIMB AFTER LANDING GEAR RETRACTION, THE RED LANDING GEAR DOOR OPEN LIGHT REMAINED ILLUMINATED ACCOMPANIED BY VIBRATION. RECYCLED LANDING GEAR AND LIGHTS EXTINGUISHED AND AIRCRAFT CONTINUED TO DESTINATION WITHOUT FURTHER INCIDENT. REPLACED NR 4 ENGINE DRIVEN HYDRAULIC PUMP AND PRESSURE ELEMENT AND LEFT LANDING GEAR UPLOCK SEQUENCE VALVE. ADJUSTED SENSOR GAP ON RIGHT WING LANDING GEAR DOOR. TRIMMED LEFT WING LANDING GEAR PRIMARY STRIKE CAM AND RIGGED LANDING GEAR DOOR. OPERATIONAL CHECK GOOD.