What was found
ON FLIGHT 3836 THE CREW REPORTED THAT AFTER ROTATION, AN "EDP1A" CAUTION MESSAGE APPEARED HYDRAULIC SYSTEM 1 SHOWS A QUANTITY OF 0%. NOTE: LEFT ENGINE LEAKING HYDRAULIC FLUID. THE CREW ELECTED TO RETURN TO ORD. THE AIRCRAFT LANDED WITHOUT INCIDENT. THE AIRCRAFT WAS REMOVED FROM SERVICE. FOUND FLUID LEAKING FROM NR 1 ENGINE T/R FLEXIBLE STOW LINE QUICK DISCONNECT FITTING. TIGHTENED FITTING IAW STANDARD MAINTENANCE PRACTICES. LEAK CHECK GOOD PER MTX WC 002-05-900-016 AS REQUIRED. NO PARTS REMOVED OR REPLACED. NO DEFECTS NOTED. THE AIRCRAFT WAS RETURNED TO SERVICE.