 FOF established a heavy technical division in 1966.A hangar was bought at Fornebu and in 1969 it was expanded to allow room for the DC-6 and allowed all the company's facilities at Fornebu to be located at one place.The division was approved as an authorized aircraft maintenance facility in 1972, allowing it to carry out subcontracted work for other airlines and also on the Lockheed P-3 Orion and Lockheed C-130 Hercules for the Royal Norwegian Air Force.