We have found the info on the official facebook page of the Polish Air Force. 49. Baza Lotnicza, operating the Mi-24D and various Mi-2, near the city Gdańsk, will celebrate according to the facebook it’s 50th anniversary. The predecessor of the unit was the 49th Air Force Command Helicopter Regiment (49 Pułku Śmigłowców Dowództwa Wojsk Lotniczych) which was created in 1967.
10th of June, Air Festival 49 Air Base in Pruszcz Gdañski and the 50th anniversary of this unit. They will announce quite nice air shows in the air and on the ground.