USAF F-22 Raptor grounding due to suspected toxins, says report

USAF F-22 Raptor grounding due to suspected toxins, says report: The grounding of the US Air Force’s (USAF) entire fleet of Lockheed Martin-built F22A Raptor fighter jets in 2011 was due to suspected toxins in the aircraft’s cockpit, says a report from the Pentagon’s chief operational tester Michael Gilmore.