Boeing Co. said two longtime directors would step down as the aerospace behemoth’s board undergoes additional changes in the wake of the 737 MAX crisis. The Chicago-situated plane maker announced on Wednesday that Susan Schwab and Arthur Collins would retire from the board and not stand for reelection at Boeing’s yearly shareholder meeting in April. 20. The company didn’t immediately reveal the nomination of new directors for the board.Mr. Collings, who once led medical device-maker Medtronic PLC, has been a Boeing board member since 2007. Ms. Schwab, a former US trade representative, has been a member of the board since 2010. The Wall Street Journal reported the planned departures earlier Wednesday. The departures have been under consideration in recent weeks and are involved in an effort following the MAX crisis to bring people with new perspectives onto the board. Four of Boeing’s 12 directors joined the board after the accidents.