SYDNEY (AP) — Australia's Qantas has completed the first non-stop commercial flight from New York to Sydney, which was used to run a series of tests to assess the effects of ultra long-haul flights on crew fatigue and passenger jetleg.

The Boeing 787 Dreamliner touched down in Sydney early Sunday morning after a flight of 19 hours and 16 minutes — the world's longest.

Qantas says tests ranged from monitoring pilot brain waves, melatonin levels and alertness to exercise classes for passengers. A total of 49 people were on board.

Capt. Sean Golding, who led the four pilots, says "overall, we're really happy with how the flight went and it's great to have some of the data we need to help assess turning this into a regular service."