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22nd May 2019, 13:41
Replies: 103
Views: 67,153
Posted By GarageYears

I'm beginning to wonder if the pilot-less...

I'm beginning to wonder if the pilot-less aircraft isn't really the answer then. Given that the folks up front apparently can't handle a real emergency, might as well not be there at all.

The...
20th May 2019, 19:14
Replies: 99
Views: 40,931
Posted By GarageYears

Technically correct, but everyone I know refers...

Technically correct, but everyone I know refers to 243 as "UHF guard".

I believe this is because most mil radios tune over the range 225.0Mhz to 399.995Mhz known as UHF-AM.

- GY
20th May 2019, 15:40
Replies: 103
Views: 67,153
Posted By GarageYears

Simulator stuff...

The crux of this discussion revolves around the simulator accurately representing the aircraft.

How does any simulator do that?

Well, firstly it starts with DATA. Any simulator is essentially...
25th Apr 2019, 15:56
Replies: 5,129
Views: 10,249,017
Posted By GarageYears

Actually it was that easy. Equally, leaving...

Actually it was that easy.

Equally, leaving the flaps at flaps 1, would have suppressed all MCAS operation, and again they would have all the time their fuel load allowed to "figure it out".
...
12th Apr 2019, 12:19
Replies: 5,129
Views: 10,249,017
Posted By GarageYears

Well, how does that align with ALL the...

Well, how does that align with ALL the information?
At 05:38:44, shortly after liftoff, the left and right recorded AOA values deviated. Left AOA decreased to 11.1 then increased to 35.7 while...
11th Apr 2019, 14:33
Replies: 5,129
Views: 10,249,017
Posted By GarageYears

A bit of a needle in a haystack, but they should...

A bit of a needle in a haystack, but they should sure be looking for it. It should be possible to determine a specific location where it detached and hence a search area.

Understanding why it fell...
9th Apr 2019, 18:26
Replies: 5,129
Views: 10,249,017
Posted By GarageYears

There is no evidence that anything like this...

There is no evidence that anything like this happened. I suppose with enough time you could sit and make up all sorts of possible problems, but let's stick to the evidence as we have it.

- GY
7th Apr 2019, 10:50
Replies: 5,129
Views: 10,249,017
Posted By GarageYears

Why is it of note? This is normal STS action. ...

Why is it of note? This is normal STS action.

- GY
5th Apr 2019, 13:24
Replies: 5,129
Views: 10,249,017
Posted By GarageYears

The first is suspected to be a typo and should...

The first is suspected to be a typo and should read "gear".

- GY
4th Apr 2019, 19:06
Replies: 5,129
Views: 10,249,017
Posted By GarageYears

Really? Aside from why the AP was...

Really?

Aside from why the AP was successfully engaged, the three trim ND FCC commands (and one NU for good measure), DURING autopilot engagement are brief and likely STS driven - not MCAS. That...
4th Apr 2019, 17:04
Replies: 5,129
Views: 10,249,017
Posted By GarageYears

I suggest you look at the FDR traces and then...

I suggest you look at the FDR traces and then tell me what you think. I did...

- GY
4th Apr 2019, 16:36
Replies: 5,129
Views: 10,249,017
Posted By GarageYears

Those both occur while the AP was engaged, which...

Those both occur while the AP was engaged, which is a 'disable' input for MCAS, hence I think we can assume those are STS.

-GY
4th Apr 2019, 16:11
Replies: 5,129
Views: 10,249,017
Posted By GarageYears

However, you might add, at no point was thrust...

However, you might add, at no point was thrust reduced from 94% N1, which allowed the airspeed to reach around 375kts.... which at the final ND trim was unrecoverable.

None of the crew trim inputs...
4th Apr 2019, 15:56
Replies: 5,129
Views: 10,249,017
Posted By GarageYears

FDR ET302

https://cimg2.ibsrv.net/gimg/pprune.org-vbulletin/1203x661/et302_fdr_9f3a192af7b7f6efbc48538385146e0f8dd5ed20.jpg
4th Apr 2019, 15:26
Replies: 5,129
Views: 10,249,017
Posted By GarageYears

Preliminary Report

http://www.ecaa.gov.et/documents/20435/0/Preliminary+Report+B737-800MAX+%2C%28ET-AVJ%29.pdf/4c65422d-5e4f-4689-9c58-d7af1ee17f3e

- GY
4th Apr 2019, 02:35
Replies: 5,129
Views: 10,249,017
Posted By GarageYears

Electric trim defeats MCAS...

Ok, I have to confess Im confused.

All this talk of manual trim forces, etc.

MCAS applies trim in increments of 2.5 degrees over 10 seconds. Any pilot pickle switch trim ceases MCAS action for...
3rd Apr 2019, 14:16
Replies: 5,129
Views: 10,249,017
Posted By GarageYears

Correct me if I'm wrong, but as far as I am...

Correct me if I'm wrong, but as far as I am aware, there was/is nothing stopping the crew from electrically trimming the aircraft nose-level (or high even) and THEN hitting the trim cutout switches?...
3rd Apr 2019, 01:08
Replies: 5,129
Views: 10,249,017
Posted By GarageYears

Hand fly the darn thing

Today I had the opportunity to talk with a line pilot from a major US carrier that has both 737NGs and MAX 9s in their fleet, and we chatted about both Lion and Ethiopian incidents. He routinely...
1st Apr 2019, 13:49
Replies: 5,129
Views: 10,249,017
Posted By GarageYears

[/left] I'm going to go out on a limb here - if...

[/left]
I'm going to go out on a limb here - if the cause of this crash was slam dunk unequivocally due to MCAS there would be no reluctance on the part of the Ethiopian authorities to throw Boeing...
31st Mar 2019, 15:42
Replies: 5,129
Views: 10,249,017
Posted By GarageYears

Firstly, as it stands the cause of the second...

Firstly, as it stands the cause of the second crash is unknown. Fingers pointing at MCAS are speculation, at least until the interim report is published. It may well be a better narrative than other...
26th Mar 2019, 19:12
Replies: 5,129
Views: 10,249,017
Posted By GarageYears

Request for clarification: Do I understand...

Request for clarification:

Do I understand this correctly?

If MCAS detects an AOA that satisfies whatever criteria is needed, it activates 10 seconds (or less, depending on Mach number) of nose...
26th Mar 2019, 02:13
Replies: 5,129
Views: 10,249,017
Posted By GarageYears

Lets play what if...

What if the AOA issue w/JT610 turns out to be a maintenance induced fault?

What if ET302 is unrelated to MCAS?

What if the lack of FDR/CVR info from ET302 is solely due to the Ethiopian...
21st Mar 2019, 15:23
Replies: 5,129
Views: 10,249,017
Posted By GarageYears

Generally you are spot on here, except some...

Generally you are spot on here, except some considerable work has been done to support the use of aircraft code directly within flight simulators - particularly with the adoption of ARINC standard...
21st Mar 2019, 14:41
Replies: 5,129
Views: 10,249,017
Posted By GarageYears

I cannot say definitively, but the latest...

I cannot say definitively, but the latest simulators generally use the SAME software load, delivered as a binary, as the aircraft.

Since MCAS is 'contained' within the FMC, I have no reason to...
21st Mar 2019, 13:45
Replies: 5,129
Views: 10,249,017
Posted By GarageYears

Ethiopian absolutely do NOT have a 737 MAX...

Ethiopian absolutely do NOT have a 737 MAX simulator. They may have access to one via Boeing Flight Services, who have four (4), and there is one other owned by Air Canada, but as far as Level D FFS...
Showing results 1 to 25 of 566
 


 
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