Originally Posted by
Stiff Under Carriage
P8's don't have MCAS. MCAS was fitted to compensate the larger engine fitment position on the 737MAX which was developed to compete with that A320Neo.
P8 = 738.
Forget MCAS: the point being made is that the MAX accidents exposed issues with the manual trim system, which is similar on both NG (ie P8) and MAX. The R&N thread is well into hamster-wheel territory now, but in the dim and distant past I recall seeing it mentioned that EASA had specific questions over the reduction in diameter of the manual trim wheel from Classic to NG, and the consequent effect on the strength required to operate manual trim under mis-trimmed conditions. It's also fair to say there are questions over the FAA's processes and the 'grandfathering' of airworthiness through the successive generations.
It'll be interesting to see what comes out of the final reports into the MAX acidents, but despite all that I doubt it will affect P8 much - if only because the NG has not been subject to airworthiness action yet, and even if it were to be in future, the so-called "roller coaster" recovery from a mis-trimmed condition could be added back to the flight manual of a MPA without controversy (maybe not true for an airliner!)