Czech airline Travel Service (TVS) has signed a cooperation agreement with Lufthansa Technik that builds on a long-standing relationship between the two companies. Lufthansa Technik will now work on Travel Service’s entire 737NG fleet. It will also have sole responsibility for Travel Service’s 56 CFM56-7B engines. The news came as Travel Service announced an increase in flight numbers on its Prague-Dubai route, plus new destinations in Spain and Portugal. The service contract with Lufthansa Technik is set to last until 2020.