Pratt & Whitney JFTD12A-4A engine installation on an Erickson Air-Crane S-64E Aircrane helicopter. Digital image of the starboard engine of S-64E registration N189AC taken by YSSYguy on 13 February 2014 for use in the Pratt & Whitney T73 article. YSSYguy (talk) 00:16, 14 February 2014 (UTC)