Boeing says 737 MAX approval delays could hit production

SEATTLE (Reuters) - Significant additional regulatory requirements or delays in returning Boeing Co's 737 MAX to commercial service could cause it to cut or temporarily halt production of the aircraft, it said in an Oct. 18 letter released on Thursday. In its letter to the U.S. Securities and Exchange Commission, Boeing said it does not expect 737 MAX order cancellations due to the grounding of its best-selling single-aisle jet to have a material impact on revenues or earnings. It cited the..