Members of the Montabaur flight school, where Lubitz took lessons, told the French newspaper that the co-pilot had flown a glider over the region.
"Andreas participated in courses in the Alpes-de-Haute-Provence with my niece, who was a good friend to him. He was passionate about the Alps, and even obsessed. I am sure that he knew the crash area well as he had flown over it in a glider," Dieter Wagner, a member of Montabaur flight school, said quoted by Le Parisien on Friday.
Lufthansa's low-cost airline Germanwings' Airbus A320, en route from Barcelona to Dusseldorf, crashed on Tuesday in the French Alps, killing all 150 people on board.
On Thursday, a French prosecutor asserted that the plane's co-pilot Andreas Lubitz locked the pilot out of the cockpit and intentionally crashed the aircraft.
