Airports Commission member faces calls for resignation The group claims in the letter, seen by The Sunday Telegraph, that there is an issue of "apparent bias." "In the circumstances we consider it unacceptable for Mr Muirhead to continue to serve on the Airports Commission and the longer he continues to serve, the more the process risks being tainted," the letter, dated July 26, reads. "Mr Muirhead is bound to have significant influence within the Commission since he is its only member with first-hand knowledge and experience of the aviation industry," the letter continues. As its chief executive, he led MAG's expansion policy and the construction of a second runway and terminal at Manchester Airport. In light of MAG's submission to the Commission on July 19, we regard it as imperative that Mr Muirhead steps down from the Commission forthwith. Failing this, and in the absence of any satisfactory commitment from you within 14 days, we will take further legal advice with a view to initiating legal proceedings to challenge Mr Muirhead's role on the commission. A spokesman for the Department for Transport said: "We are satisfied there is no conflict of interest. Geoff Muirhead's expertise in airports is the very reason he was appointed. According to MAG's accounts for 2010/11, the year when Mr Muirhead retired from its board, he was paid £82,000 "for consultancy services provided in his role as ambassador to the group."