Originally Posted by
safetypee
As currently described / discussed, the modified preventative system appears only to be concerned with erroneous trim operation due to MCAS.
If so then the likelihood of a trim runaway in the Max would still be similar to the NG.
Are the risks associated with this still acceptable given the difficulty / impossibility of moving the trim as demonstrated by the accidents and elsewhere.
Implementing a flight control system able to catch all types of runaway will bring B737 in compliance with CS 25.671/25.672.
This will most likely require that the trim ‘relay logic' is implemented in the ‘HAL’.