What was found
LOST ALL CENTER HYDRAULIC FLUID SHORTLY AFTER AIRBORNE. EICAS MSSG HYD PRESS SYS C APPEARED AFTER RAISING LANDING GEAR HANDLE. REMOVED AND REPLACED ELEVATOR RETURN LINE P/N # 272W8290-82 REF B777 AMM 20-11-10-2, SERVICED CENTER HYD SYSTEM REF B777 AMM 12-12-01-3, PERFORMED OPS AND LEAK CHECK OF CENTER HYD SYSTEM REF B777 29-11-00-5, NO DEFECTS NOTED, A/C OK FOR SERVICE.