A Germanwings Airbus A320 crashed near Barcelonette, France, on March 24 on a scheduled flight from Barcelona to Dusseldorf. A total of 150 people were on board, including six crewmembers.

The aircraft, operating as flight 4U 9525, took off from Barcelona at 10:01 a.m. local time. The A320 then climbed to its cruising altitude of 38,000 ft., which it reached at 10:29 a.m., according to data released by aircraft tracking specialists flightradar24. Two min. later, the aircraft started a descent to its last recorded altitude of 6,800 ft., which it reached 10 min. later. The A320 also made a slight left turn before crashing at 10:40 a.m.

There has not yet been any official communication from Germanwings or its parent Lufthansa on more details of the accident. Lufthansa CEO Carsten Spohr said “we do not yet know what has happened to flight 4U 9525. Our deepest sympathy goes to the families and friends of our passengers and crew on 4U 9525. If our fears are confirmed this is a dark day for Lufthansa.”

The aircraft, registered as D-AIPX, was delivered new to Lufthansa in February 1991. It was transferred to the group’s newly created low-cost unit Germanwings in 2003, but returned to Lufthansa’s fleet in 2004. As part of the transfer of all Lufthansa direct services to the low-cost unit, the aircraft was moved back to the airline last year. Germanwings has not published details about flight hours and cycles. Aviation Week’s fleet database lists the aircraft as having about 58,000 flight hours and 46,500 cycles.

Germanwings had never before had an accident.

Lufthansa’s last fatal accident involved another one of its Airbus A320s registered as D-AIPN. The aircraft overshot the runway upon landing at Warsaw’s Chopin International Airport on Sept. 14, 1993. Two people on board died.