Complex sentence: The aircraft was instructed to line up on the runway and hold for one minute due to the possibility of wake turbulence from a departing American DC-10, the crew requested to extend the hold to two minutes which was granted.
Split into simpler sentences: The aircraft was instructed to line up on the runway and hold for one minute due to the possibility of wake turbulence from a departing American DC-10. The crew requested to extend the hold to two minutes which was granted.