Originally Posted by
IFixPlanes
MCAS is a funktion of the FCC.
There is no reset.
If either one of the FCCs get a given AOA value that represent Stall for him and all these things are given
- MCAS is enable for airplane model by program pin selection
- Autopilot is disengaged
- Flaps are up
- Pilots are not commanding stabilizer trim (Manual mode).
he activate the MCAS.
If the left AOA is ****ty, than only FCC#1 do the stuff on the left side like stickshaker and on.
If the right AOA is ****ty, than only FCC#2 do the stuff on the right side.
If the AOA of the aircraft is really that high to activate the MCAS than both FCCs do their stuff on their side (i.e. stickshaker on both sides)
If the value of an AOA improves, the FCCs stop their MCAS signal - yes you can call this a reset...
Maybe English is not your first language (neither is it mine), but your choice of words doesn't help your argument.
Yes, there is a "reset", at least there is in the meaning of "MCAS will become active again, and add an input to the THS". One of these resets is 5 seconds after the pilots stop using the thumb trim switch. If the pilots do not use the thumb trim switch after an trim input by MCAS due to faulty AOA, there won't be another MCAS input. If the value of the AOA was correct, MCAS will trim the nose back up after the AOA is back to normal range.
If you mean there is no specific MCAS reset button on the flight deck you are right, but your post isn't very clear/correct/helpful/relevant.