An Alaska Airlines plane was compelled to return to Portland, Oregon, on Wednesday after affected by proper engine bother that one passenger described as “terrifying.”

The Oregonian reported that the Airbus 320 was headed from Portland International Airport to San Francisco at about 11:45 a.m. 

Keith Cunningham Parmeter, who was on board the flight, instructed the paper that he may hear the engine “torquing up and down—then a few minutes later, the captain very calmly announces that we’ve had one engine fail.

The plane made a continuous, high-pitched revving sound as it descended from 10,000 feet, the 48-year-old said. Fire crews were waiting at the tarmac when the plane landed as a precaution, he said.

FILE: An Alaska Airlines plane had engine trouble on Wednesday at was forced to make an emergency landing. (Genna Martin, Seattlepi.com) (Photo by Genna Martin/San Francisco Chronicle via Getty Images)

FILE: An Alaska Airlines plane had engine bother on Wednesday at was compelled to make an emergency landing. (Genna Martin, Seattlepi.com) (Photo by Genna Martin/San Francisco Chronicle by way of Getty Images)
(Getty)

“Our pilots are among the best in the business, and they train for these types of situations,” Alaska Airlines stated in its assertion. The plane was being inspected by upkeep crews, and its 150 passengers had been being transferred onto completely different flights, the assertion stated, in response to the Associated Press.

The airline didn’t instantly reply to an after-hours e mail from Fox News.

The Associated Press contributed to this report