BA Crew MIA?

"Due to a shortage of crew the BA1503 Manchester-New York flight was cancelled and we have apologised for the disruption to the passengers."

According to the BBC the reason for the shortage was because police received an anonymous call at about 0415 on Friday, claiming BA cabin crew were partying at a Manchester hotel. The crew were told to remain at the hotel after BA had been informed of the claims and they never reported for duty at Manchester Airport.