Complex sentence: Its primary mission was with the Military Air Transport Service, acting as a weather reporting station and as a military airfield for transport aircraft although the airfield's control tower was closed on 14 January 1946 for a brief period, being reopened on 23 July 1946.
Split into simpler sentences: Its primary mission was with the Military Air Transport Service, acting as a weather reporting station and as a military airfield for transport aircraft. The airfield's control tower was closed on 14 January 1946 for a brief period, but was reopened on 23 July 1946.