MIAMI -

A Miami federal judge will try a second time to sentence an American who returned from Cuba decades after hijacking a jetliner to the communist island.

William Potts Jr. was supposed be sentenced last week for the 1984 hijacking of the jet on its way from New York to Miami, but a last-minute snag emerged over classified documents. Another hearing is set Thursday.

Potts wants credit for the 15 years he has already served in a Cuban prison. The 57-year-old Potts said he returned last year to the U.S. to finally resolve his case.

The FBI says the New Jersey native identified himself at the time as a black militant and claimed in a note to a flight attendant that he planned to blow up the flight.