A Bergen County man was sentenced Friday in Brooklyn federal court for his role in a scheme to defraud JetBlue Airways of more than $1.5 million. Julien Levy, 39, of Englewood, bribed now-former JetBlue employee Keily Nunez, 44, of Queens, New York, and an unidentified co-conspirator, to approve aircraft part invoices, according to Breon Peace, U.S. Attorney for the Eastern District of New York. Peace said the bribes were to seal deals for airplane parts between JetBlue and Levy’s company, Summit Aviation Supply LLC. Nunez also approved more than $8.5 million in aircraft part invoices between …