15.03.2019: New MCAS software should come out end of this month (FCC P12.1).
The software changes will include:
- Limit stab trim MCAS commands
- AOA comparison monitor (AOA>5.5deg = MCAS disabled)
- Slower stab trim MCAS command speed
- AOA Disagree will become standard (now is an option)
QRH for Speed Trim Fail will be revised but memory items will remain the same.
12.03.2019: Boeing to update 737 MAXs after delaying changes for months
Boeing plans to make major changes to the flight control systems on the 737 MAX aircraft — just months after delaying a similar software fix due to failed negotiations with the FAA, a report says.
The updates — which involve multiple sensors, or data feeds, being rolled out into the MAX’s stall-prevention system in place of its current single-sensor setup — were ordered up in the wake of the deadly Lion Air crash in Indonesia last October and were originally planned for early January.source
30.11.2018: Boeing is reportedly planning 737 MAX software upgrade
Boeing is reportedly considering a software upgrade for its 737 MAX family following the deadly crash of Lion Air Flight JT610 last month. The move comes after a preliminary report by Indonesian investigators, released just a few days ago, put the U.S. plane maker’s new anti-stall system at the center of the search for the cause of the accident.
Reuters, citing two sources briefed on Boeing’s proposal, said the aircraft manufacturer could launch the software update over the next six to eight weeks and that it would help address a situation the flight crew on the doomed 737 MAX 8 experienced.source