Storm Front by Belle Reilly

From the moment she receives the phone call notifying her of a downed passenger jet, Captain Catherine Philips, director of Orbis Airlines' new strategic operations unit, finds herself drawn deeper into the dark, dangerous world of international terrorism. Aided by a reliable investigative team including flight attendant Rebecca Hanson, Catherine quickly realises the evidence from the terrible crash points to one terrorist in particular, one who will stop at nothing to achieve his fundamentalist ends. In a cat and mouse game that spans the globe, Kate and Becky find themselves caught up in a desperate race against time, and the odd's, where they must fight to hang onto one another, as well as their lives.