Boeing delays 737 MAX software fix delivery

Delivery of Boeing’s promised fix to the flight system software at the center of two 737 MAX crash investigations has been pushed back several weeks after an internal review by engineers not connected to the aircraft raised additional safety questions. “Time is needed for additional work by Boeing as the result of an ongoing review of the 737 MAX Flight Control System to ensure that Boeing has identified and appropriately addressed all pertinent issues.” Evidence from the crashes of a Lion Air 737 MAX off Indonesia in October and an Ethiopian Airlines flight last month indicates that a single faulty sensor input caused the anti-stall system to activate in error, pushing both aircraft into a dive shortly after take-off.

Source: arstechnica.com