What was found
AFTER TAKEOFF, EICAS MSG GEAR DOORS AND GEAR DISAGREE DISPLAYED WITH GEAR HANDLE UP (LEFT GEAR REMAINED EXTENDED). FLT DEVIATED TO AND LANDED WITHOUT PROBLEMS. MAINTENANCE TECHNICIANS INSPECTED LT WHEEL WELL AREA AND DISCOVERED HYDRAULIC LEAK BY LT MLG UP HOSE (PN: AS4624J0300SS). LT MLG UP HOSE WAS REMOVED AND REPLACED AS PER AMM 20-10-10 PAGE 401 WITH SATISFACTORY RESULTS. ALSO, C HYDRAULIC SYSTEM WAS SERVICED AS PER AMM 12-12-01 PAGE 301. THE AIRPLANE RETURNED TO COMMERCIAL OPERATIONS WITHOUT PROBLEMS.