57(3)After a conciliation board has reported to the Board its findings and recommendations on the matters set forth in the statement referred to in section 54, the Board may direct it to reconsider and clarify or amplify its report or any part thereof, or to consider and report on any matter added to such statement pursuant to that section, except that in any such case the report of the conciliation board shall be deemed to have been received by the Board notwithstanding that the reconsidered report or the report on the added matter, as the case may be, has not been received by the Board.