PPRuNe Forums - Search Results

Search: Posts Made By: PEI_3721

Showing results 1 to 9 of 9
Search took 0.00 seconds.

Forum: Tech Log

16th Mar 2019, 07:58

Replies: 195

737MAX Stab Trim architecture

Views: 133,174

Posted By PEI_3721

John, I have no gripes with editorial action;...

John, I have no gripes with editorial action; apart from the difficulties arising from the accumulation of threads around the subject and the apparent inability of many contributors to read (to use...

Forum: Tech Log

15th Mar 2019, 10:46

Replies: 195

737MAX Stab Trim architecture

Views: 133,174

Posted By PEI_3721

737 Max AoA input to FDR

There are many discussion involving the AoA involvement in recent accidents, all based on the FDR, but where in the AoA system is the FDR recording made ?
Is this an analogue or digital value ?
Is...

Forum: Tech Log

16th Dec 2018, 11:38

Replies: 195

737MAX Stab Trim architecture

Views: 133,174

Posted By PEI_3721

Thanks Machinbird; points for discussion. Your...

Thanks Machinbird; points for discussion.
Your system description is adequate, but if the crew are to have knowledge of an AOA system disagree, then at some point the systems (sensors) must be...

Forum: Tech Log

15th Dec 2018, 14:17

Replies: 195

737MAX Stab Trim architecture

Views: 133,174

Posted By PEI_3721

c314, thanks for sharing. So in terms of the...

c314, thanks for sharing.

So in terms of the human performance in identifying the failure: the AD assumes that the crew will notice the trim motion (after flap retraction) amongst all of the other...

Forum: Tech Log

15th Dec 2018, 12:54

Replies: 195

737MAX Stab Trim architecture

Views: 133,174

Posted By PEI_3721

After reviewing the thread and other web...

After reviewing the thread and other web descriptions of MCAS, it is not clear (to me) what effect the flap configuration has on an erroneous AoA input.

The most recent AD does not refer to flap...

Forum: Tech Log

15th Dec 2018, 07:51

Replies: 195

737MAX Stab Trim architecture

Views: 133,174

Posted By PEI_3721

The most important part is the phrase:- ’In the...

The most important part is the phrase:-
’In the event of an uncommanded horizontal stabilizer trim movement, combined with…’
which rests on the assumption that movement is perceived, in...

Forum: Tech Log

14th Dec 2018, 06:43

Replies: 195

737MAX Stab Trim architecture

Views: 133,174

Posted By PEI_3721

This Thanks for the clear and well considered...

This Thanks for the clear and well considered resume, FCeng84 #58, :ok:
‘Design assumed that pilots would …’
Rule one for design; first list you assumptions; they are the basis of systems...

Forum: Tech Log

11th Dec 2018, 06:34

Replies: 195

737MAX Stab Trim architecture

Views: 133,174

Posted By PEI_3721

megan, gums, many of these points are also in...

megan, gums, many of these points are also in thread https://www.pprune.org/tech-log/614997-b-737-speed-trim-system-5.html, post 81 onwards.
And additionally some other, as yet, unanswered thoughts...

Forum: Tech Log

25th Nov 2018, 21:34

Replies: 195

737MAX Stab Trim architecture

Views: 133,174

Posted By PEI_3721

gums, Lonewolf, et al, may I direct you to the...

gums, Lonewolf, et al, may I direct you to the questions at https://www.pprune.org/showthread.php?p=10319901
How much is actually known about MCAS or the integrity of AoA ?

Also see...

Showing results 1 to 9 of 9