Tunisian investigators have determined that the Tunisair Airbus A320 involved in a gear collapse at Tunis had veered off the runway after landing.
Preliminary information, relayed by the French investigation authority BEA, states that the A320 had touched down on runway 19 at 13:23 on 6 February - although Tunisair gave the time as about an hour later.
It travelled for 1,600m (5,250ft) before veering off the right side of the runway and travelling 114m on the grass, in parallel.
The aircraft then crossed the intersecting runway 11/29 before continuing for another 130m.
BEA says the aircraft travelled 17m across taxiway F - which runs parallel to runway 11/29 - before coming to a halt.
Its nose-gear collapsed during the event. The aircraft (TS-IMB) had been arriving after a flight from Casablanca.
There were strong winds present at Tunis Carthage airport at around the time of the accident.