In addition to Haney's crash, the Air Force has also been investigating the source of a mysterious, recurring problem in which pilots in the F-22 cockpit have reported experiencing "hypoxia-like symptoms" in mid-air. Last year the full fleet of the planes were grounded for five months while the Air Force tried to find out what was wrong, but they were unable to identify any single problem and have allowed the planes back in the air.
Still, the problem persists. In the six months since the planes have returned to the sky, there have been at least nine more instances of pilots reporting the hypoxia-like symptoms, according to the Air Force. Hypoxia occurs when the brain is deprived of oxygen and can cause dizziness, confusion and lack of judgment.
An Air Force spokesperson told ABC News the service was aware of the suit but declined to comment at this time.