Ethiopian 737 MAX 8 crash
06-04-2019, 04:01 AM
#703
Line Holder
Joined APC: Mar 2019
Posts: 53
Hello, please excuse any lack of knowledge, I am only hear to see a pilots point of view, or anyone else who has a deep understanding.
My question is, if the co pilot said he could not trim manually, so what would be the correct procedure from here? My understanding is that they reengaged the system which made the aircraft nose dive again. So overall I would think they should have just kept going about it the way they were? Or could this have been due to an inexperienced FO not trimming correctly? OR the tools they relied on were in fact experiencing problems leaving them with no other choice? Pretty confusing for someone like me so I’m just trying to get the best understanding.
My question is, if the co pilot said he could not trim manually, so what would be the correct procedure from here? My understanding is that they reengaged the system which made the aircraft nose dive again. So overall I would think they should have just kept going about it the way they were? Or could this have been due to an inexperienced FO not trimming correctly? OR the tools they relied on were in fact experiencing problems leaving them with no other choice? Pretty confusing for someone like me so I’m just trying to get the best understanding.
06-04-2019, 05:47 AM
#705
Prime Minister/Moderator
Joined APC: Jan 2006
Position: Engines Turn Or People Swim
Posts: 39,289
Originally Posted by Firefighter
Hello, please excuse any lack of knowledge, I am only hear to see a pilots point of view, or anyone else who has a deep understanding.
My question is, if the co pilot said he could not trim manually, so what would be the correct procedure from here? My understanding is that they reengaged the system which made the aircraft nose dive again. So overall I would think they should have just kept going about it the way they were? Or could this have been due to an inexperienced FO not trimming correctly? OR the tools they relied on were in fact experiencing problems leaving them with no other choice? Pretty confusing for someone like me so I’m just trying to get the best understanding.
My question is, if the co pilot said he could not trim manually, so what would be the correct procedure from here? My understanding is that they reengaged the system which made the aircraft nose dive again. So overall I would think they should have just kept going about it the way they were? Or could this have been due to an inexperienced FO not trimming correctly? OR the tools they relied on were in fact experiencing problems leaving them with no other choice? Pretty confusing for someone like me so I’m just trying to get the best understanding.
06-04-2019, 06:46 AM
#706
Gets Weekends Off
Joined APC: Apr 2011
Posts: 1,479
Originally Posted by Firefighter
I am only hear to see a pilots point of view
06-04-2019, 07:27 AM
#708
Gets Weekends Off
Joined APC: Mar 2014
Posts: 281
Seems that if the 737 had boosted elevator controls both crews would have been able to return their aircraft to level flight and hold it there with only moderate back pressure on the control column. That would have given them time to sort things out with the stabilizer runaway. Many things besides the MCAS system can cause a runaway trim system so it seems that the elevator boost should have been incorporated many 737 versions ago.
06-04-2019, 09:03 AM
#709
Perennial Reserve
Joined APC: Jan 2018
Posts: 11,503
Originally Posted by Csy Mon
The Ethiopian pilots were briefed on the system after the Lion Air accident.
06-04-2019, 09:13 AM
#710
Disinterested Third Party
Joined APC: Jun 2012
Posts: 6,025
Originally Posted by F4E Mx
Seems that if the 737 had boosted elevator controls both crews would have been able to return their aircraft to level flight and hold it there with only moderate back pressure on the control column. That would have given them time to sort things out with the stabilizer runaway. Many things besides the MCAS system can cause a runaway trim system so it seems that the elevator boost should have been incorporated many 737 versions ago.
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