The necessary MCAS training input could have been very simple (and cheap): promulgation of an operational notice along the lines of:
The Max version of the B737 incorporates a modification to the stabilizer trim system to counteract the adverse effects of the engine nacelle geometry on the aircraft’s stalling characteristics. Boeing refer to this modification as the Manoeuvring Characteristics Augmentation System (MCAS). A technical description of the MCAS follows this Notice.
If pilots observe any activity in the stabilizer trim system when it should be inactive they should immediately accomplish the STAB TRIM RUNAWAY checklist.
Last edited by Discorde; 10th May 2022 at 05:49.
Reason: added technical reference