A man who allegedly forged an email presented to an inquest into a mid-air collision was a Civil Aviation Authority (CAA) investigator.
Flight examiner David Fielding, 30, and student pilot James Taylor, 19, died on February 17 2008, when their helicopter and a Cessna piloted by Bevan Hookway, 17, collided above Paraparaumu.
During the inquest Mr Fielding's family received an unsolicited email purporting to be from aviation expert Professor Frank Sharp, manager of Professional Programmes at Massey University's School of Aviation.
Prof Sharp denied any knowledge of it.
Name suppression expired this morning for Peter Kirker, a former CAA safety investigation manager, who has been charged with forgery, use of a forged document and perverting the course of justice, the CAA said in a statement.