Complex sentence: The first flight was made on April 17,1967.I n 1969 the Moscow-Tokyo Tu-114 flights were stopped, and the four involved planes converted back to the 200 seat domestic layout.
Split into simpler sentences: The first flight was made on April 17,1967. In 1969 the Moscow-Tokyo Tu-114 flights were stopped, and the four involved planes converted back to the 200 seat domestic layout.