EMPLOYEE WAS ASSIGNED TO CLEAN TOP DECKS IN CANNERY. HE REMOVED THE ACCESS COVER AND PUT CLEAN UP INTO THE BIN. WHEN HE WAS RETURNING THE COVER TO THE NORMAL POSITION, IT SHIFTED CAUSING HIS HAND TO STRIKE THE FLANGE ON THE FEED CHUTE OF THE BIN. D&A PERFORMED ON 11/4/05, NEGATIVE. DID NOT RECEIVE CLIENT INCIDENT REPORT UNTIL 11/11/05.