Prosecutors are retrying the Rev. James Brennan after the jury deadlocked on attempted rape and child endangerment charges.
The jury acquitted Brennan of conspiring with church officials after a landmark four-month trial that alleged a broad cover-up of abuse complaints at the Philadelphia archdiocese.
A young man accuses Brennan of abusing him in 1996, when Brennan was on leave from the Roman Catholic priesthood.
He will be retried March 6 before a new judge.
His status as a priest is pending with the Vatican.
Another priest abuse trial is set to start next week in the same Philadelphia courthouse.