1978 – 1987 : Reaching Maturity
After tunisifying its flight personnel, the airline gained in 1979, its full technical autonomy after completion of the first complete overhaul of a Boeing 727-200 by Tunisian technicians.

Throughout the decade, 4 Boeing 737-200 joined the fleet ( 2 were delivered in 1979 and 2 in 1981)

In 182, the company received its Airbus A-300. These new acquisitions enabled the company to extend its network to over 22 European and 12 Arab and African cities.