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11th May 2019, 01:54
Replies: 23
Views: 10,222
Posted By Lost in Saigon

Reports are that it was hit three times...... ...

Reports are that it was hit three times......

Normally I would say that the aircraft was probably hit in such a way that it was spun around, and was hit again, and then once more.

But, because...
7th May 2019, 15:29
Replies: 5,127
Views: 10,302,424
Posted By Lost in Saigon

There are many systems on an aircraft where one...

There are many systems on an aircraft where one failure can cause entry to a "dangerous state".

MCAS was designed to be easily disabled by simply trimming the aircraft. There is no prompt action...
6th May 2019, 22:32
Replies: 5,127
Views: 10,302,424
Posted By Lost in Saigon

As airline pilots our recurrent training often...

As airline pilots our recurrent training often emphasizes or incorporates items that were the causes of recent airline accidents or incidents:

I can just see it now.... My next session is going...
3rd May 2019, 12:55
Replies: 5,127
Views: 10,302,424
Posted By Lost in Saigon

The trim worked as they expected, sort of. If...

The trim worked as they expected, sort of. If English was not your first language, it would be even more difficult.

The Lion Air crews were in the worst position, they had no prior knowledge of...
1st May 2019, 22:41
Replies: 5,127
Views: 10,302,424
Posted By Lost in Saigon

I have never seen any official reference to the...

I have never seen any official reference to the actual FAA requirement.

This is the most detailed explanation I have seen: 737 MAX Maneuvering Characteristics Augmentation System (MCAS)...
1st May 2019, 22:15
Replies: 5,127
Views: 10,302,424
Posted By Lost in Saigon

I think everyone is missing the the point of...

I think everyone is missing the the point of MCAS. MCAS is supposed to operate behind the scenes to add just a little nose down trim at high angles of attack to replicate the "feel" of a "normal"...
1st May 2019, 17:31
Replies: 5,127
Views: 10,302,424
Posted By Lost in Saigon

The consensus is WRONG. Boeing clearly states...

The consensus is WRONG. Boeing clearly states that electric trim will STOP and even REVERSE unwanted MCAS operation.

...
1st May 2019, 16:41
Replies: 5,127
Views: 10,302,424
Posted By Lost in Saigon

"stick and rudder, pitch and power" also means...

"stick and rudder, pitch and power" also means basic airmanship. Basic airmanship also involves keeping your aircraft in trim at all times.

In both accidents the pilots were unable to properly...
1st May 2019, 15:20
Replies: 5,127
Views: 10,302,424
Posted By Lost in Saigon

I think your interpretation is wrong. My...

I think your interpretation is wrong.

My understanding is that MCAS was implemented ONLY to satisfy FAA Section 25.173


25.173 Static longitudinal stability.

Under the conditions specified...
1st May 2019, 07:01
Replies: 5,127
Views: 10,302,424
Posted By Lost in Saigon

My understanding is that ANY use of the thumb...

My understanding is that ANY use of the thumb switches disables MCAS. Any type of nose up trim stops the MCAS dead in it's tracks. If you release the thumb switch, a faulty "original" MCAS will start...
1st May 2019, 03:44
Replies: 5,127
Views: 10,302,424
Posted By Lost in Saigon

It has been said time and time again: MCAS is not...

It has been said time and time again: MCAS is not for stall protection.

MCAS is only there to provide the correct elevator feel at high angles of attack to meet the FAA certification requirements....
27th Apr 2019, 00:15
Replies: 5,127
Views: 10,302,424
Posted By Lost in Saigon

The “problem” was explained in the Boeing...

The “problem” was explained in the Boeing Bulletin issued back in November 2018 after the Lion Air accident.

“Uncommanded nose down stabilizer trim due to erroneous Angle of Attack during Manual...
26th Apr 2019, 22:58
Replies: 5,127
Views: 10,302,424
Posted By Lost in Saigon

Back in November 2018 Boeing issued a bulletin...

Back in November 2018 Boeing issued a bulletin about the MCAS Stab Trim problem and many airlines responded by removing the word “CONTINUOUS” from the Runaway Stabilizer checklist.

...
25th Apr 2019, 18:07
Replies: 5,127
Views: 10,302,424
Posted By Lost in Saigon

Yes, I agree. It SHOULD have been easy, but for...

Yes, I agree. It SHOULD have been easy, but for some unknown reason, it was not.

There are at least three things that could have saved them:

1) leaving the flaps extended to stop MCAS operation...
22nd Apr 2019, 21:48
Replies: 5,127
Views: 10,302,424
Posted By Lost in Saigon

I don’t see a “combination of individual...

I don’t see a “combination of individual failures”. The failure of the Angle of Attack was only ONE failure. The crew did not correctly deal with that failure and made things worse for themselves.
14th Apr 2019, 05:30
Replies: 5,127
Views: 10,302,424
Posted By Lost in Saigon

They should have read the bulletin. ...

They should have read the bulletin.


https://cimg7.ibsrv.net/gimg/pprune.org-vbulletin/1136x992/5d7f1fa3_ea5a_4790_bac6_ebbc0d8c8d46_adfa23ccf5c449d7511ff6f2bcdd67a3f066a7d3.jpeg...
14th Apr 2019, 05:13
Replies: 5,127
Views: 10,302,424
Posted By Lost in Saigon

As we all know now, if the AOA fails, it can...

As we all know now, if the AOA fails, it can cause MCAS to trim nose down when it should not. This was a surprise to the Lion Air Pilots but after that accident Boeing sent a Bulletin to all...
14th Apr 2019, 00:43
Replies: 5,127
Views: 10,302,424
Posted By Lost in Saigon

No, it is not Boeing PR. As more information...

No, it is not Boeing PR. As more information becomes available, and there is more understanding of what actually happened, those of us who actually get paid to fly can see that these pilots made a...
12th Apr 2019, 00:45
Replies: 5,127
Views: 10,302,424
Posted By Lost in Saigon

Thanks for the link. That is an EXCELLENT read.

Thanks for the link. That is an EXCELLENT read.
11th Apr 2019, 10:00
Replies: 5,127
Views: 10,302,424
Posted By Lost in Saigon

Here is the B737 MAX Unreliable Airspeed...

Here is the B737 MAX Unreliable Airspeed Checklist. Compared to the NG, the memory items are identical, and the rest has only a few differences.
...
10th Apr 2019, 22:40
Replies: 5,127
Views: 10,302,424
Posted By Lost in Saigon

No, the system he is describing does not use a...

No, the system he is describing does not use a vane.
10th Apr 2019, 21:46
Replies: 5,127
Views: 10,302,424
Posted By Lost in Saigon

Crafty FOs could carry one of these to test the...

Crafty FOs could carry one of these to test the kazoo......
https://cimg4.ibsrv.net/gimg/pprune.org-vbulletin/393x396/clipboard01_cdd2e9f92fb2595ca58b4c5e612f1876f06cdaa9.jpg
10th Apr 2019, 19:33
Replies: 5,127
Views: 10,302,424
Posted By Lost in Saigon

In the video they spent far too long fighting the...

In the video they spent far too long fighting the control forces before attempting to operate the trim cutout switches. Maybe they were trying to represent the lowest common denominator in pilot...
10th Apr 2019, 17:42
Replies: 5,127
Views: 10,302,424
Posted By Lost in Saigon

Is that the video that "Mentour Pilot" deleted? ...

Is that the video that "Mentour Pilot" deleted?

I am not worried about the video because:

1) They purposely trimmed THE WRONG WAY just to see what happens.

2) It is a simulator and may not...
10th Apr 2019, 13:49
Replies: 5,127
Views: 10,302,424
Posted By Lost in Saigon

The problem with the MAX is that the larger, more...

The problem with the MAX is that the larger, more forward, engine nacelles create too much lift at high angles of attack. Strakes would create even more lift. Why would that help?
Showing results 1 to 25 of 616
 


 
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