Without spare pilots or airplanes in New York, the airline decided to fly passengers to Atlanta to swap aircraft and crew rather than fly an emptyplane to New York.
Airline seats are a perishable commodity an empty seat becomes a worthless asset once the plane takes off and this fact of aviation life has sometimes led to ruinous price-cutting.
Loganair has put on an extra flight between Aberdeen and Shetland on Saturday and retailer Tesco chartered a Hercules transporter plane to fly supplies to the islands to restock empty shelves.
Currently, airlines complain that they have to test each model of device individually, on every single plane in the fleet, and with a separate empty flight used for each test, before they're allowed to relax the rules for that model.