William Jon Orders was charged after Mexican student Lenami Godinez-Avila, 27, fell 300 metres to her death while tandem hang-gliding with Orders in April, 2012.
Witnesses said it looked like she wasn't strapped in. To make matters worse the veteran pilot panicked and swallowed a video memory card from a camera recording the flight.
Police later recovered the memory card but no video of the flight has ever been publicly released.
Aside from uttering the words "Not guilty" in court last year, Jon Orders has only spoken publicly about Godinez-Avila's death once, when he issued an apology to her family.
"Every day my thoughts go out to how Lenami's family and friends must be feeling. I want so much to relive that day and to have it turn out differently," said Orders after the death in 2012.
"I realize that my actions cause this matter to drag out unnecessarily, and for that I am deeply regretful."