Passenger films terrifying moment engine cover falls off Boeing plane in the US [Video]

A Houston-bound Boeing 737-800 plane operated by Southwest Airlines returned safely to Denver International Airport, in the US, on Sunday after an engine cover fell off and struck the wing flap, according to the Federal Aviation Administration.

The agency said it will investigate.

WATCH THE VIDEO ABOVE: Passenger films terrifying moment engine cover falls off plane.

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In recorded air traffic control audio, one of the pilots said that “several passengers and flight attendants heard something loud hit the wing.”

In a statement to CNN, Southwest said passengers would take another plane to Houston and would be approximately three hours behind schedule.

“We apologise for the inconvenience of their delay, but place our highest priority on ultimate Safety for our Customers and Employees,” the statement said. Southwest said no injuries were reported.

Southwest said its maintenance teams would review the aircraft, which departed at 7.49am local time and returned at 8.15am

The flight reached an altitude of …