Washington ( CNN ) -- A JetBlue pilot arrested after an apparent meltdown aboard a March flight has been found not guilty by reason of insanity . A federal judge in Amarillo , Texas , made the determination Tuesday after a psychologist testified that pilot Clayton Frederick Osbon `` suffered from a severe mental disease or defect that impaired his ability '' to understand his actions . Judge Mary Lou Robinson found that Osbon committed the offense of interfering with a flight crew , but she judged him to be not guilty by reason of insanity and ordered him to be held pending further examination . Osbon was ordered immediately transported to a `` low-security '' federal prison in Fort Worth , Texas . Pilot breakdown draws attention to mental health standards . `` We do n't have a comment . We are going to let the process play out . We continue to support Osbon and his family , '' said Alison Croyle , a JetBlue Airways spokeswoman . Osbon , 49 , was charged following a March 27 incident on a JetBlue flight from New York to Las Vegas . Early in that flight , the plane 's co-pilot became concerned about Osbon 's bizarre behavior , according to an FBI affidavit . As the Airbus A-320 was climbing out of New York 's Kennedy International Airport , Osbon talked about his church and needing to `` focus , '' the affidavit says . He then told the co-pilot to take the controls and to work the radio , and began talking about religion , making statements that were incoherent , it says . The co-pilot became further concerned when Osbon said `` things just do n't matter '' and when he yelled over the radio to air traffic controllers . At one point , Osbon said `` We 're not going to Vegas . '' Concerned by Osbon 's erratic behavior , the co-pilot suggested that they invite an off-duty JetBlue captain into the cockpit . Instead , Osbon `` abruptly left the cockpit to go to the forward lavatory , '' the affidavit said . The co-pilot used the opportunity to get the off-duty pilot into the cockpit and lock the door . When Osbon tried to enter his code into the cockpit door , the co-pilot announced over the public address system an order to restrain Osbon . Several passengers brought Osbon down , according to the affidavit and to passengers on the plane . The flight was diverted to Amarillo , where it landed safely with the passengers still restraining Osbon . Previously on CNN.com : . Investigators get voice recorder from JetBlue flight . Opinion : JetBlue passengers reacted . Would you ? JetBlue pilot charged for meltdown goes to court . Judge orders psychiatric exam for JetBlue pilot . JetBlue pilot to use insanity defense . JetBlue pilot ruled fit to stand trial . CNN 's Bill Mears and Dave Alsup contributed to this report .
Judge found the defendant had committed the offense of interfering with a flight crew . She found him not guilty by reason of insanity ; he was sent to a low - security prison . Clayton Frederick Osbon began behaving erratically during a March 27 flight . He was attacked by passengers and the flight was diverted to Amarillo , Texas .