What happened
During the approach phase to Guadalajara-Miguel Hidalgo y Costilla Airport, the flight crew notified air traffic control that the aircraft had suffered a complete failure of all hydraulic systems. In response to this emergency, the crew performed a manual deployment of the landing gear.
Due to the loss of hydraulic pressure, the aircraft was forced to land on runway 10 without the use of flaps. The lack of hydraulic functionality also rendered the braking system and the thrust reversers inoperable. Consequently, the crew could not decelerate the aircraft sufficiently before the end of the runway. The aircraft exited the paved surface, collided with a drainage ditch, and eventually stopped approximately 300 metres beyond the runway threshold.
Findings
- The primary factor in the excursion was the inability to use brakes or thrust reversers following a total hydraulic system failure.