Boe­ing omit­ted ‘safe­guards’ on 737 MAX: Re­port

The Times of India (New Delhi edition) - - Times Global -

New York: Boe­ing left out “key safe­guards” from the 737 MAX’s anti-stall sys­tem that were in­cluded on an ear­lier ver­sion of the sys­tem used on a mil­i­tary tanker air­craft, Wall Street Jour­nal re­ported on Sun­day.

The model’s MCAS an­ti­stall sys­tem has been im­pli­cated in two crashes that left a to­tal of 346 peo­ple dead. The ear­lier ver­sion of the sys­tem re­lied on mul­ti­ple sen­sors and had “lim­ited abil­ity to move the tanker's nose”, while the MAX’s ver­sion re­ceived in­put from just one sen­sor and was “tougher for pilots to over­ride,” the daily said. WSJ cited a per­son fa­mil­iar with the sys­tem as say­ing the ear­lier ver­sion was de­signed to guard against prob­lems. “You don’t want the so­lu­tion to be worse than the ini­tial prob­lem,” the per­son said.

A Boe­ing spokesman told WSJ that the sys­tems were “not di­rectly com­pa­ra­ble”. In the MAX jets that crashed, pilots found them­selves bat­tling the sys­tem to keep the air­craft from div­ing into the ground.

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