EE WAS REMOVING A HYDRAULIC LINE FROM A PIECE OFEQUIPMENT HE WAS USING A WRENCH TO RMEOVE THE NUT THAT WAS SECURING THE LINE. THE NUT SUDDENLY BORKE FREE STRAINING HIS LEFT WRIST & CAUSING PA IN HE REPORTED THE ACCIDENT TO HIS SUPERVISOR BUT DID NOT SEEK TREAMENT UNTIL 11/21/00. HE RECD A FULL DUTY RELEASE. THE WRIST CONT TO BOTHER HIM A BONE SCAN WAS DONE 12/18/00 THAT REVEALED