Complex sentence: N6674D, now operating as C-CHFV in Canada, is the highest flying time helicopter in the world, having surpassed nearly 70,000 flight hours since its construction in 1962.
Split into simpler sentences: N6674D, now operating as C-CHFV in Canada, is the highest flying time helicopter in the world. Having surpassed nearly 70,000 flight hours since its construction in 1962.