I can't tell exactly where in the record it is, ie whether it might be recording the offence or the sentence or something else. But building on shanreagh's suggestion, I wonder if if might be "Forf[eits] Recog[nizance]s".
In other words, he'd done something like failing to answer bail, or done something he'd been bound over not to do, and as a result was to forfeit his bond money.