DETROIT (AP) - Northwest Airlines is conducting an internal investigation into whether a flight attendant may have left a suspicious note that forced a flight cancellation, the company said Friday.
Northwest spokesman Mary Beth Schubert said authorities determined the note found on the plane, which was scheduled to fly from Detroit to Cleveland, was a hoax.
On Thursday, a flight attendant found the note during a pre-departure check of Flight 1101, which scheduled to depart at 11:57 a.m. Passengers were on board the plane when the note was found, Schubert said.
Northwest wasn't releasing details about the note's contents.
Detroit television station WJBK reported that passengers interviewed upon arrival in Cleveland said they sat on the plane for about 30 minutes before being told the flight was canceled.
The approximately 20 passengers were rebooked on the next plane, a 4:57 p.m. flight, to Cleveland.
Schubert said every passenger was given a calling card, an apology, a discount on future travel and an amenity coupon.