Government test pilots trying out Boeing's updated Max software in a flight simulator last week found a flaw that could result in the plane's nose pitching down, according to two people familiar with the matter. In both Max crashes, the plane's flight-control software pushed the nose down based on faulty readings from one sensor. One said the latest setback is likely to delay the plane's return to service by an extra one to three months. The Max began passenger flights in 2017 and is Boeing's best-selling plane, although fewer than 400 have been delivered to airlines. A Max flown by Indonesia's Lion Air crashed in October, and an Ethiopian Airlines Max crashed in March.

Source: Ethiopian News June 26, 2019 22:08 UTC