Not sure why private company running the airport is neccessary. Just look at the owenership of Manchester Airport and that has don't too bad!
The Council of the City of Manchester - 55%
The Borough Council of Bolton - 5%
The Borough Council of Bury - 5%
The Oldham Borough Council - 5%
The Rochdale Borough Council - 5%
The Council of the City of Salford - 5%
The Metropolitan Borough Council of Stockport - 5%
The Tameside Metropolitan Borough Council - 5%
The Trafford Borough Council - 5%
The Wigan Borough Council - 5%