Airport services and business aviation group BBA Aviation has appointed Mike Powell as Group Finance Director with effect from July 1st.He will succeed Mark Hoad, who will step down on June 30th.Powell joins the group from AZ Electronic Materials, where he has been Chief Financial Officer since 2011. He previously worked as Group Finance Director of Nippon Sheet Glass and spent 15 years at Pilkington in a number of senior finance roles."I look forward to playing a key role in the company's continued operational and strategic progress," Powell said.RD