London, May 4 : Duchess of York Sarah Ferguson reportedly landed in a mid-air scare after an engine casing came loose during a flight to Norway.

Princess Eugenie’s mother was said to have been travelling with her tycoon friend Geir Frantzen on a private jet.

The 49-year-old was allegedly “trembling in shock” when the panel of the Piper PA-42 Cheyenne plane swung free, forcing the aircraft to head back to the Biggin Hill airport, Kent.

“It made a hell of a racket and the alarms went off and lights on the control screen began flashing,” the Sun quoted a source as saying.

“Sarah was terrified the plane was going to crash and was trembling with shock when it landed,” the source added.

The pair was later purported to have reached Norway safely after technicians fixed the problem. (ANI)