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Date: 2013-10-02 13:02:05Federal Aviation Administration Transport category Aviation accidents and incidents Helicopter Crashworthiness Federal Aviation Regulations Military helicopter Cougar Helicopters Flight 91 British Airways Sikorsky S-61 crash Aviation Transport Air safety | Add to Reading ListSource URL: www.bellhelicopter.comDownload Document from Source WebsiteFile Size: 452,79 KBShare Document on Facebook |