An American Airlines Boeing 737-800, performing flight from Tucson to Dallas Ft. Worth (USA), reported hydraulic leak.

• Aircraft had landed on Fort Worth’s runway 36L and was vacating the runway when the crew informed tower they had lost hydraulic fluid, not clear whether on the runway already, assistance was not yet needed.
• Tower instructed the aircraft to join taxiway Y and subsequently instructed the aircraft to stop and hold position.
• The crew subsequently advised they had been disabled, have shut down and are waiting for company maintenance.
• The occurrence aircraft is still on the ground in Dallas Ft. Worth about 21 hours after landing.