Passenger Sarah Rees spoke of her fear as they were told by staff what was happening, Wales Online reports.
She said: “We were coming down to land and getting lower and lower when we suddenly ascended again.
The pilot came on the loudspeaker and explained what was going on. He radioed Cardiff and said we were going to do an emergency landing.
He said,This is not a drill. Prepare for an emergency landing.It was awful.”
Sarah said an air hostess told passengers to remove shoes and glasses and the pilot circled above the city for 20 minutes trying to lose fuel.
“There was a very real chance of dying,” said the 46-year-old, who was flying with husband Tony, 48.
There's nothing like a passenger attempting to give a technical analysis of the situation....