Universal Jet Aviation

Gulfstream GIV

The crew, consisting of a Captain and a co-pilot, took off at around 6 h 00 for a flight between Athens and Istanbul Sabiha Gokcen (Turkey). A cabin aid was also on board the aeroplane. The crew then made the journey between Istanbul and Nice (06) with three passengers. After dropping them off in Nice, the aeroplane took off at 12 h 56 for a flight to Le Castellet aerodrome in order to park the airplane for several days, the parking area at Nice being full. The Captain, in the left seat, was Pilot Monitoring (PM). The copilot, in the right seat, was Pilot Flying (PF). Flights were operated according to US regulation 14 CFR Part 135 (special rules applicable for the operation of flights on demand). The flight leg was short and the cruise, carried out at FL160, lasted about 5 minutes. At the destination, the crew was cleared to perform a visual approach to runway 13. The autopilot and the auto-throttle were disengaged, the gear was down and the flaps in the landing position. The GND SPOILER UNARM message, indicating nonarming of the ground spoilers, was displayed on the EICAS and the associated single chime aural warning was triggered. This message remained displayed on the EICAS until the end of the flight since the crew forgot to arm the ground spoilers during the approach. At a height of 25 ft, while the aircraft was flying over the runway threshold slightly below the theoretical descent path, a SINK RATE warning was triggered. The PF corrected the flight path and the touchdown of the main landing gear took place 15 metres after the touchdown zone - that’s to say 365 metres from the threshold - and slightly left of the centre line of runway 13(3). The ground spoilers, not armed, did not automatically deploy. The crew braked and actuated the deployment of the thrust reversers, which did not deploy completely(4). The hydraulic pressure available at brake level slightly increased. The deceleration of the aeroplane was slow. Four seconds after touchdown, a MASTER WARNING was triggered. A second MASTER WARNING(5) was generated five seconds later. The nose landing gear touched down for the first time 785 metres beyond the threshold before the aeroplane’s pitch attitude increased again, causing a loss of contact of the nose gear with the ground. The aircraft crossed the runway centre line to the right, the crew correcting this by a slight input on the rudder pedals to the left. They applied a strong nose-down input and the nose gear touched down on the runway a second time, 1,050 metres beyond the threshold. The speed brakes were then manually actuated by the crew with an input on the speed brake control, which then deployed the panels. Maximum thrust from the thrust reversers was reached one second later(6). The aircraft at this time was 655 metres from the runway end and its path began to curve to the left. In response to this deviation, the crew made a sharp input on the right rudder pedal, to the stop, and an input on the right brake, but failed to correct the trajectory. The aeroplane, skidding to the right(7), ran off the runway to the left 385 metres from the runway end at a ground speed of approximately 95 knots. It struck a runway edge light, the PAPI of runway 31, a metal fence then trees and caught fire instantly. An aerodrome firefighter responded quickly onsite but did not succeed in bringing the fire under control. The occupants were unable to evacuate the aircraft.

Learjet 25

A commercial pilot, who observed the airplane during the takeoff attempt, stated that it used "lots" of runway, and that the nose lifted "too early and way too slow." The airplane "struggled" to get in the air, and it appeared tail heavy, with "extreme" pitch, about 45 degrees nose-up. It also appeared that the only thing keeping the nose up was ground effect. The airplane became airborne for "a very short time," then sank to the ground, and veered off the left side of the runway. The nose was "up" the whole time, the airplane never "rolled off on a wing," and the wings never wobbled. The engines were "really loud," like a "shriek," and engine noise was "continuous until impact." Another witness at a different location confirmed the extreme nose high takeoff attitude and the brief time the airplane was airborne. It seemed odd to him that an airplane with that much power used so much runway. A runway inspection revealed no evidence of foreign objects or aircraft debris. Tire tracks from the airplane's main landing gear veered off the left side of the paved surface, at a 20-degree angle, about 3,645 feet from the runway's approach end. They continued for about 775 feet, then turned back to parallel the runway for another 650 feet, before ending about 50 feet prior to a chain link fence. There was no evidence that the nose wheel was on the ground prior to the fence. The fence, which was about 1,300 feet along the airplane's off-runway ground track and 200 feet to the left of the runway edge stripe, was bent over in the direction of travel. Ground scars began about 150 feet beyond the fence, and the main wreckage came to rest 300 feet beyond the beginning of the ground scars. The first officer advised a witness that he'd be making the takeoff; however, the pilot at the controls during the accident sequence could not be confirmed. When asked prior to the flight if he'd be making a high-performance takeoff, the captain replied that he didn't know. There was no evidence of mechanical malfunction.

Learjet 55 Longhorn

The Learjet departed from an uncontrolled airport about 2 minutes before the accident on a on a VFR climb and was not talking to ATC. The Extra EA-300S departed VFR from a controlled airport and requested and received a frequency change from the control tower 2 minutes after departure. Review of radar data revealed that the Extra climbed to 2,500 feet on a heading of 346 degrees before descending to 2,400 at 1141:25. The Learjet was observed on radar in a right crosswind departure passing through 700 feet on a heading of 242 degrees at 1141:02. At 1141:16, the Learjet was at 1,400 feet heading 269. At 1141:30, the Extra is observed on radar at 2,400 feet, in a right turn heading 360 degrees. The Learjet is observed on radar at 1141:28 in a climbing left turn passing through 2,300 feet. The last radar return on both aircraft was at 1141:30.