N4476S (manufacturer's construction number 33010/1037) is a plain white 737-7BC Boeing Business Jet (BBJ) with the tail number "N4476S", owned by Keeler & Tate Management and is reported by news media to be used as a US Department of Defense prisoner transport. It is also known as the "Guantánamo Bay Express". The aircraft was previously registered N313P, and owned by Premier Executive Transport Services.
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