> the Ethiopian pilots followed Boeing's guidelines on MCAS failure properly.
The Ethiopian pilots did not follow the procedure in the Emergency Airworthiness Directive distributed to all MAX pilots that says:
"Initially, higher control forces may be needed to overcome any
stabilizer nose down trim already applied. Electric stabilizer trim can be
used to neutralize control column pitch forces before moving the STAB
TRIM CUTOUT switches to CUTOUT. Manual stabilizer trim can be
used before and after the STAB TRIM CUTOUT switches are moved
to CUTOUT."
The Ethiopian pilots did not follow the procedure in the Emergency Airworthiness Directive distributed to all MAX pilots that says:
"Initially, higher control forces may be needed to overcome any stabilizer nose down trim already applied. Electric stabilizer trim can be used to neutralize control column pitch forces before moving the STAB TRIM CUTOUT switches to CUTOUT. Manual stabilizer trim can be used before and after the STAB TRIM CUTOUT switches are moved to CUTOUT."
https://theaircurrent.com/wp-content/uploads/2018/11/B737-MA...
You might want to also read the report:
2018 - 035 - PK-LQP Final Report http://knkt.dephub.go.id/knkt/ntsc_aviation/baru/2018%20-%20...
And note that the first incident of MCAS failure was overcome by the pilots and the airplane landed safely.