Search found 1140 matches

by dragon6172
Sat Mar 16, 2019 9:19 am
Forum: Civil Aviation
Topic: Ethiopian Airlines 737MAX crashes enroute to Nairobi Q1 2019
Replies: 5479
Views: 785530

Re: Ethiopian Airlines 737MAX crashes enroute to Nairobi

Who said anything about disabling auto-pilot? Just auto-trim... Not sure where you are getting this from, did I misword something in my post that has lead you to suggest they turned off the entire AP system? I am merely suggesting someone hit stab cut-off. How do you think AP works? There is no &qu...

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by dragon6172
Sat Mar 16, 2019 9:06 am
Forum: Civil Aviation
Topic: Ethiopian Airlines 737MAX crashes enroute to Nairobi Q1 2019
Replies: 5479
Views: 785530

Re: Ethiopian Airlines 737MAX crashes enroute to Nairobi

As has been pointed out numerous times the pilot ALWAYS has authority over MCAS inputs using the control column electric trim switch. Do we know that for fact? Could the Max have some logic (for instance, when stickshaker is active), where MCAS overrules control column electric trim switch? Yes its...

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by dragon6172
Sat Mar 16, 2019 1:30 am
Forum: Civil Aviation
Topic: Ethiopian Airlines 737MAX crashes enroute to Nairobi Q1 2019
Replies: 5479
Views: 785530

Re: Ethiopian Airlines 737MAX crashes enroute to Nairobi

If you have a better explanation for a lack of climb performance (on take off) than incorrect trim when airspeed is well above what is needed to climb, PLEASE share it. I think the easy explanation is they had stick shaker at takeoff and they initially purposely reduced their climb rate to prevent ...

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by dragon6172
Sat Mar 16, 2019 1:19 am
Forum: Civil Aviation
Topic: Ethiopian Airlines 737MAX crashes enroute to Nairobi Q1 2019
Replies: 5479
Views: 785530

Re: Ethiopian Airlines 737MAX crashes enroute to Nairobi

How fast can you out the windscreen and notice the horizon getting worryingly high up the view? I’d say a couple of seconds. GF Yeah, thanks. What I'm looking for is something a bit more scientific. Something like: The trim moves x degrees per sec which causes the plane deviate from the altitude th...

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by dragon6172
Sat Mar 16, 2019 12:24 am
Forum: Civil Aviation
Topic: Ethiopian Airlines 737MAX crashes enroute to Nairobi Q1 2019
Replies: 5479
Views: 785530

Re: Ethiopian Airlines 737MAX crashes enroute to Nairobi

Hmm.. You are flying at 2000ft with 400kts. Stick shaker on. Screens lit like a Christmas tree. MCAS kicks in, plane starts to drop. Column too heavy to hold back with two hands. Now you need to troubleshoot, make a decision to switch off the trim, take one hand off from the column, reach behind to...

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by dragon6172
Sat Mar 16, 2019 12:11 am
Forum: Civil Aviation
Topic: Ethiopian Airlines 737MAX crashes enroute to Nairobi Q1 2019
Replies: 5479
Views: 785530

Re: Ethiopian Airlines 737MAX crashes enroute to Nairobi

I updated my chart based on the FR24 data: [list] [*]Started plotting earlier at the begin of takeoff roll instead of when FR24 indicated "airborne". I am doubtful FR24's "airborne" is accurate since the ground speed was only 93 knots, and the plane was only 1900 ft from thresho...

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by dragon6172
Sat Mar 16, 2019 12:06 am
Forum: Civil Aviation
Topic: Ethiopian Airlines 737MAX crashes enroute to Nairobi Q1 2019
Replies: 5479
Views: 785530

Re: Ethiopian Airlines 737MAX crashes enroute to Nairobi

Hmm.. You are flying at 2000ft with 400kts. Stick shaker on. Screens lit like a Christmas tree. MCAS kicks in, plane starts to drop. Column too heavy to hold back with two hands. Now you need to troubleshoot, make a decision to switch off the trim, take one hand off from the column, reach behind to...

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by dragon6172
Sat Mar 16, 2019 12:01 am
Forum: Civil Aviation
Topic: Ethiopian Airlines 737MAX crashes enroute to Nairobi Q1 2019
Replies: 5479
Views: 785530

Re: Ethiopian Airlines 737MAX crashes enroute to Nairobi

I was pretty clear in my initial post that I am proposing the trim cut off switches were thrown by either the last crew or this crew as a precaution. Who the hell said anything about disabling auto-pilot? Just auto-trim... Not sure where you are getting this from, did I misword something in my post...

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by dragon6172
Fri Mar 15, 2019 9:11 pm
Forum: Civil Aviation
Topic: Ethiopian Airlines 737MAX crashes enroute to Nairobi Q1 2019
Replies: 5479
Views: 785530

Re: Ethiopian Airlines 737MAX crashes enroute to Nairobi

What worries me is all those who keep saying ”a pilot not knowing about this issue has been in a cave for 4 months”, ”it’s a training issue”, ”it’s because the F/o had 200 hours” etc. A plane should not fly itself into the ground, switch flicked off or not. Any plane left unsupervised will fly itse...

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by dragon6172
Fri Mar 15, 2019 9:00 pm
Forum: Civil Aviation
Topic: Ethiopian Airlines 737MAX crashes enroute to Nairobi Q1 2019
Replies: 5479
Views: 785530

Re: Ethiopian Airlines 737MAX crashes enroute to Nairobi

What worries me is all those who keep saying ”a pilot not knowing about this issue has been in a cave for 4 months”, ”it’s a training issue”, ”it’s because the F/o had 200 hours” etc. A plane should not fly itself into the ground, switch flicked off or not. Any plane left unsupervised will fly itse...

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by dragon6172
Fri Mar 15, 2019 7:00 pm
Forum: Civil Aviation
Topic: Ethiopian Airlines 737MAX crashes enroute to Nairobi Q1 2019
Replies: 5479
Views: 785530

Re: Ethiopian Airlines 737MAX crashes enroute to Nairobi

If MCAS "should never be active frankly", why did Boeing bake it in to the MAX in such a way that it: 1. Can be activated at any altitude; 2. Relies only on one point of data that has no redundancy; 3. Can overrride pilot input repeatedly to the point of increasing control surface forces ...

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by dragon6172
Fri Mar 15, 2019 6:36 pm
Forum: Civil Aviation
Topic: Ethiopian Airlines 737MAX crashes enroute to Nairobi Q1 2019
Replies: 5479
Views: 785530

Re: Ethiopian Airlines 737MAX crashes enroute to Nairobi

Unlike what dragon6172 says; there was no runaway trim, therefore the fact they followed that checklist based - indeed - on an educated decision is lucky... SINCE THERE WAS NO PROCEDURE TO OVERRIDE MCAS. (Nor did they even know of the existence of MCAS or what it does.) I'm sorry if that fact offen...

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by dragon6172
Fri Mar 15, 2019 6:22 pm
Forum: Civil Aviation
Topic: Ethiopian Airlines 737MAX crashes enroute to Nairobi Q1 2019
Replies: 5479
Views: 785530

Re: Ethiopian Airlines 737MAX crashes enroute to Nairobi

Neither Osiris30 nor myself were suggesting flying at (or near, or beyond) Vmo was a smart thing to do. Or "normal" procedure. ET302 found themselves at high speed (381 kts has been quoted), but was it "severe overspeed"? Osiris30 says it is (severe overspeed) I still, after all...

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by dragon6172
Fri Mar 15, 2019 4:12 pm
Forum: Civil Aviation
Topic: Ethiopian Airlines 737MAX crashes enroute to Nairobi Q1 2019
Replies: 5479
Views: 785530

Re: Ethiopian Airlines 737MAX crashes enroute to Nairobi

Isn't that what the AirAsia pilots did just before they smashed into the sea? FDR shows electric trim inputs by either the computer or pilot all the way up until the last maybe half second of flight. The accident flight did not turn off electric trim. The flight prior to the accident did turn off e...

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by dragon6172
Fri Mar 15, 2019 4:07 pm
Forum: Civil Aviation
Topic: Ethiopian Airlines 737MAX crashes enroute to Nairobi Q1 2019
Replies: 5479
Views: 785530

Re: Ethiopian Airlines 737MAX crashes enroute to Nairobi

Amsterdam wrote:

No system should be able to trim an aircraft in an attitude beyond unrecoverable from that attitude

It would be striking if that would be possible


Electric trim on any aircraft can result in an unrecoverable attitude if no action is taken.

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by dragon6172
Fri Mar 15, 2019 2:47 pm
Forum: Civil Aviation
Topic: Ethiopian Airlines 737MAX crashes enroute to Nairobi Q1 2019
Replies: 5479
Views: 785530

Re: Ethiopian Airlines 737MAX crashes enroute to Nairobi

SUPPOSEDLY the column trim switch has been eliminated in the 737 Max (anyone able to confirm?), mainly because of MCAS which introduces a stall prevention functionality for a certain part of the flight envelope (flaps up, high speed, at certain alpha) in manual control. For this functionality to be...

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by dragon6172
Fri Mar 15, 2019 2:36 pm
Forum: Civil Aviation
Topic: Ethiopian Airlines 737MAX crashes enroute to Nairobi Q1 2019
Replies: 5479
Views: 785530

Re: Ethiopian Airlines 737MAX crashes enroute to Nairobi

Couldn't the pilots in any case of malfunction just turn off all electronic bs? Like you're a pilot. You know how to fly a plane. You have flown thousands of take-offs. You know the right speed, right angle, right altitude. You know how to do it without electronic interference if need be. So why no...

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by dragon6172
Fri Mar 15, 2019 2:26 pm
Forum: Civil Aviation
Topic: Ethiopian Airlines 737MAX crashes enroute to Nairobi Q1 2019
Replies: 5479
Views: 785530

Re: Ethiopian Airlines 737MAX crashes enroute to Nairobi

That is just a theory because previous flight didn't crash. It could be just MCAS trim down did not reach a point of no return and crew could recover. Well true... they didn't wait until MCAS had trimmed full nose down to turn off the electric trim. Doing that would require some expedient hand cran...

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by dragon6172
Fri Mar 15, 2019 1:50 pm
Forum: Civil Aviation
Topic: Ethiopian Airlines 737MAX crashes enroute to Nairobi Q1 2019
Replies: 5479
Views: 785530

Re: Ethiopian Airlines 737MAX crashes enroute to Nairobi

But we still dont know if the pilots on the crashed planes did that or not, Its just an assumption that the Lion air crew didnt. But that also assumes that the fault was exactly the same. In the case of the Ethiopian plane, where the pilots where well aware if the issue and if flipping the switch w...

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by dragon6172
Fri Mar 15, 2019 1:25 pm
Forum: Civil Aviation
Topic: Ethiopian Airlines 737MAX crashes enroute to Nairobi Q1 2019
Replies: 5479
Views: 785530

Re: Ethiopian Airlines 737MAX crashes enroute to Nairobi

dtw2hyd wrote:


Also, everyone claims pilots need to flip two cut-off switches and they are good. Did anyone test this theory with MAX/MCAS (or) just based on runaway stab procedures?

The Lion Air crew prior to the accident flight tested this procedure and it worked as advertised.

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by dragon6172
Thu Mar 14, 2019 10:42 pm
Forum: Civil Aviation
Topic: Ethiopian Airlines 737MAX crashes enroute to Nairobi Q1 2019
Replies: 5479
Views: 785530

Re: Ethiopian Airlines 737MAX crashes enroute to Nairobi

drajoshi wrote:

One wonders that it's not a bad idea to revert back to basics and manually fly aircrafts during take offs and landings the most riskiest part of flying.

These MCAS events can only happen during manual flying.

And yes, lot of dramatizing and mistakes in that article.

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by dragon6172
Thu Mar 14, 2019 10:17 pm
Forum: Civil Aviation
Topic: Ethiopian Airlines 737MAX crashes enroute to Nairobi Q1 2019
Replies: 5479
Views: 785530

Re: Ethiopian Airlines 737MAX crashes enroute to Nairobi

The info coming out of the Lion Air investigation is very interesting. Apparently the suspect info about AoA didn't come from the sensors. Instead, it came somewhere downstream--exactly where it occurred either isn't known or hasn't been disclosed yet. FWIW, I would not be surprised if the ET inves...

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by dragon6172
Thu Mar 14, 2019 10:10 pm
Forum: Civil Aviation
Topic: Lion Air 737MAX8 Crashed Jakarta to Pangkal Pinang
Replies: 3187
Views: 634642

Re: Lion Air 737MAX8 Crashed Jakarta to Pangkal Pinang

There is a warning system on the 737Max that warns if the AoA sensors disagree. It's an Optional Extra. Certification loophole. Optional extras are discounted from grandfathering formula. If standard, questions would be asked why, whats changed from earlier models..................... Are you tryin...

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by dragon6172
Thu Mar 14, 2019 8:14 pm
Forum: Civil Aviation
Topic: B737MAX Grounded Worldwide Q1 2019
Replies: 6476
Views: 791350

Re: B737MAX Grounded Worldwide

According to this https://theaircurrent.com/aviation-safety/the-world-pulls-the-andon-cord-on-the-737-max/ it works during taxi. They will send a signal during taxi, but it is not necessarily reliable. If for example there is a strong enough crosswind the AoA vane on the upwind side may read higher...

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by dragon6172
Thu Mar 14, 2019 1:16 pm
Forum: Civil Aviation
Topic: Lion Air 737MAX8 Crashed Jakarta to Pangkal Pinang
Replies: 3187
Views: 634642

Re: Lion Air 737MAX8 Crashed Jakarta to Pangkal Pinang

Image
Image
Image

Better FDR traces with scales marked

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by dragon6172
Thu Mar 14, 2019 12:51 pm
Forum: Civil Aviation
Topic: Lion Air 737MAX8 Crashed Jakarta to Pangkal Pinang
Replies: 3187
Views: 634642

Re: Lion Air 737MAX8 Crashed Jakarta to Pangkal Pinang

But what maintenance exactly? According to the report, the AoA sensor was replaced and tested, and based on the FDR, it was working, but with a huge offset. How to fix that, and was that covered in the maintenance manual? The data shows the MCAS response is so slow, it's possible to fly the plane i...

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by dragon6172
Thu Mar 14, 2019 12:19 pm
Forum: Civil Aviation
Topic: Ethiopian Airlines 737MAX crashes enroute to Nairobi Q1 2019
Replies: 5479
Views: 785530

Re: Ethiopian Airlines 737MAX crashes enroute to Nairobip

musicrab wrote:
downdata wrote:
so airbus now has the blackboxes

Cheeky. Min 7 days before we hear anything about content?

I would guess "data not recoverable"

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by dragon6172
Thu Mar 14, 2019 11:55 am
Forum: Civil Aviation
Topic: Ethiopian Airlines 737MAX crashes enroute to Nairobi Q1 2019
Replies: 5479
Views: 785530

Re: Ethiopian Airlines 737MAX crashes enroute to Nairobi

https://i.ibb.co/RSJd7pd/PKLQP.jpg I’m not understanding why the scale matters. Clearly the previous flight had a normal flap profile with low flap setting for takeoff then retracted all flight, then I crmentwl flaps for landing. The accident flight has flaps full from the start and then retraction...

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by dragon6172
Thu Mar 14, 2019 11:22 am
Forum: Civil Aviation
Topic: Ethiopian Airlines 737MAX crashes enroute to Nairobi Q1 2019
Replies: 5479
Views: 785530

Re: Ethiopian Airlines 737MAX crashes enroute to Nairobi

At 89 kts the airplane would probably not be capable of producing the lift to takeoff. They would have kept rolling nose up (trying to rotate) until the airplane gained enough speed to lift off. Then they would have been on the edge of a stall in a very unstable flight regime at low altitude. The F...

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by dragon6172
Thu Mar 14, 2019 1:44 am
Forum: Civil Aviation
Topic: Ethiopian Airlines 737MAX crashes enroute to Nairobi Q1 2019
Replies: 5479
Views: 785530

Re: Ethiopian Airlines 737MAX crashes enroute to Nairobi

I was just looking at the preliminary report of Lion Air 610. Has anyone noticed that the accident flight's flap handle position is indicating full flaps as opposed to the flight previous to the accident flight? Did they take off with full flaps? If so, why? Did the ET flight do this as well? Perha...

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by dragon6172
Wed Mar 13, 2019 6:18 pm
Forum: Civil Aviation
Topic: Ethiopian Airlines 737MAX crashes enroute to Nairobi Q1 2019
Replies: 5479
Views: 785530

Re: Ethiopian Airlines 737MAX crashes enroute to Nairobi

So was there a step missed in the change of the AoA sensor? Was the info even included in the AMM? MCAS derives its signal from a single sensor at any time. The source is toggled per cycle. No idea what defines a cycle. engine start run stop | fuselage pressurization up const down | ... you get the...

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by dragon6172
Wed Mar 13, 2019 4:59 pm
Forum: Civil Aviation
Topic: Ethiopian Airlines 737MAX crashes enroute to Nairobi Q1 2019
Replies: 5479
Views: 785530

Re: Ethiopian Airlines 737MAX crashes enroute to Nairobi

Posted on the Manufacturer thread but I thought this was worthy of being posted here... So Lion Air air owner Rusdi Kirana has gone on record to say that Boeing has tried to cover up the AoA / MCAS system, unfairly blaming Lion's poor maintenance. Interesting statement on a basically brand new airc...

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by dragon6172
Wed Mar 13, 2019 2:31 pm
Forum: Civil Aviation
Topic: Atlas Air 3591 Down in Trinity Bay, Texas
Replies: 1923
Views: 465085

Re: Atlas Air 3591 Down in Trinity Bay, Texas

I'm interested in the reasons for the max thrust? Particularly if you believe the Greg Feith assertion that the AP/AT was coupled through the entire accident sequence.

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by dragon6172
Wed Mar 13, 2019 2:07 pm
Forum: Civil Aviation
Topic: Atlas Air 3591 Down in Trinity Bay, Texas
Replies: 1923
Views: 465085

Re: Atlas Air 3591 Down in Trinity Bay, Texas

Going back to my experience with different aircraft, in order to prevent a runway stab trim, if a certain amount of pressure were applied to the control column (indicating an severe out-of-trim condition, such as would be expected with a runway stab trim) an independent stab trim brake would preven...

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by dragon6172
Wed Mar 13, 2019 5:24 am
Forum: Civil Aviation
Topic: Ethiopian Airlines 737MAX crashes enroute to Nairobi Q1 2019
Replies: 5479
Views: 785530

Re: Ethiopian Airlines 737MAX crashes enroute to Nairobi

Per Bloomberg: Ethiopia wanted to send the flight-data and cockpit-voice recorders to the UK AAIB instead of NTSB in the US https://www.bloomberg.com/news/articles/2019-03-12/repercussions-spread-as-singapore-australia-act-boeing-update?srnd=premium-asia Blackbox to U.K. or U.S.? (10:58 a.m.) Ethio...

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by dragon6172
Wed Mar 13, 2019 4:47 am
Forum: Civil Aviation
Topic: Ethiopian Airlines 737MAX crashes enroute to Nairobi Q1 2019
Replies: 5479
Views: 785530

Re: Ethiopian Airlines 737MAX crashes enroute to Nairobi

I have a theory that could explain the AOA sensor malfunction indication and the crashes, while also explaining why MCAS is wrongly accused of being the main culprit. If you look at the position of the engine intakes on the MAX 8, they have been brought forward and up, to maintain ground clearance ...

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by dragon6172
Wed Mar 13, 2019 3:49 am
Forum: Civil Aviation
Topic: Ethiopian Airlines 737MAX crashes enroute to Nairobi Q1 2019
Replies: 5479
Views: 785530

Re: Ethiopian Airlines 737MAX crashes enroute to Nairobi

Interpretation: MCAS trimmed high and the activated autopilot corrected that ASAP. This would indicate that MCAS and flight displays get wrong ( increased AoA) information while the AP gets the correct one. That is a real can of worms, man! Except isn't it pretty much SOP throughout the world to ac...

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by dragon6172
Tue Mar 12, 2019 6:54 pm
Forum: Civil Aviation
Topic: Ethiopian Airlines 737MAX crashes enroute to Nairobi Q1 2019
Replies: 5479
Views: 785530

Re: Ethiopian Airlines 737MAX crashes enroute to Nairobi

I wonder if the government shutdown earlier this year delayed certification of Boeings MCAS software improvements that were supposed to come out in December. The company I work for had a STC approval delayed by 6-7 weeks because of the shutdown.

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by dragon6172
Tue Feb 05, 2019 5:52 pm
Forum: Civil Aviation
Topic: Lion Air 737MAX8 Crashed Jakarta to Pangkal Pinang
Replies: 3187
Views: 634642

Re: Lion Air 737MAX8 Crashed Jakarta to Pangkal Pinang

My own humble thoughts on this and apologies if I have stated something erroneous or badly put. For me, the issues really started while in the climb out. MCAS is disabled with the flaps extended so the AoA issue would be masked until the crew went Flaps 0. So is it possible that when the aircraft n...

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by dragon6172
Sat Dec 01, 2018 2:22 am
Forum: Civil Aviation
Topic: Frontier A320 Loses #2 Engine Cowling Departing LAS
Replies: 30
Views: 9719

Re: Frontier A320 Loses #2 Engine Cowling Departing LAS

Wonder if they used the slats on landing

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by dragon6172
Fri Nov 30, 2018 6:06 pm
Forum: Civil Aviation
Topic: Lion Air 737MAX8 Crashed Jakarta to Pangkal Pinang
Replies: 3187
Views: 634642

Re: Lion Air 737MAX8 Crashed Jakarta to Pangkal Pinang

If you are so confident that MCAS can be "just turn off" and "not have to worry about it", why the FAA required his addition in the first place ? Safety is not just a game where you can simply replace a bad designed protection by an reduced envelope ! Who said the FAA required it?

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by dragon6172
Fri Nov 30, 2018 4:08 pm
Forum: Civil Aviation
Topic: Lion Air 737MAX8 Crashed Jakarta to Pangkal Pinang
Replies: 3187
Views: 634642

Re: Lion Air 737MAX8 Crashed Jakarta to Pangkal Pinang

For just a few seconds until it kicks in again (assuming conditions that caused it to activate are still present), no? No, the authority is always there. Yes, MCAS will attempt to trim nose down 5 seconds after pilot trim input (assuming conditions requiring its use exist), but the authority for pi...

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by dragon6172
Fri Nov 30, 2018 2:35 pm
Forum: Civil Aviation
Topic: Lion Air 737MAX8 Crashed Jakarta to Pangkal Pinang
Replies: 3187
Views: 634642

Re: Lion Air 737MAX8 Crashed Jakarta to Pangkal Pinang

For just a few seconds until it kicks in again (assuming conditions that caused it to activate are still present), no? No, the authority is always there. Yes, MCAS will attempt to trim nose down 5 seconds after pilot trim input (assuming conditions requiring its use exist), but the authority for pi...

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by dragon6172
Fri Nov 30, 2018 12:04 pm
Forum: Civil Aviation
Topic: Lion Air 737MAX8 Crashed Jakarta to Pangkal Pinang
Replies: 3187
Views: 634642

Re: Lion Air 737MAX8 Crashed Jakarta to Pangkal Pinang

The problem is that the MCAS is not a optional automatic system. The MCAS is actually a required protection system with authority over the pilot due to the greater instability of the 373MAX compared to the previous 737 families. Pilot always has authority over MCAS, as has been discussed here sever...

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by dragon6172
Fri Nov 30, 2018 12:09 am
Forum: Civil Aviation
Topic: Lion Air 737MAX8 Crashed Jakarta to Pangkal Pinang
Replies: 3187
Views: 634642

Re: Lion Air 737MAX8 Crashed Jakarta to Pangkal Pinang

Well, since the vane's replacement was not brand new, that raised the possibility of its "imperfection". I don't mean to say a brand new item is 100% more reliable and free from defect, but refurbished/repaired items are as such because they had been either 100% defective/broken/deficient...

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by dragon6172
Thu Nov 29, 2018 2:46 pm
Forum: Civil Aviation
Topic: Southwest agent mocks child’s name
Replies: 147
Views: 13087

Re: Southwest agent mocks child’s name

Once came across a young girl whose name was spelled K-a. Pronounced Kay-dash-a. Her mother was a moron, too.

That being said, the posting of the boarding pass on social media is where the agent crossed the line

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by dragon6172
Thu Nov 29, 2018 1:48 am
Forum: Civil Aviation
Topic: Lion Air 737MAX8 Crashed Jakarta to Pangkal Pinang
Replies: 3187
Views: 634642

Re: Lion Air 737MAX8 Crashed Jakarta to Pangkal Pinang

LDRA wrote:
in conjunction with one or more of the indications or effects listed below


Was this text and the listed effects originally in the flight manual?

Nope

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by dragon6172
Thu Nov 29, 2018 1:33 am
Forum: Civil Aviation
Topic: Lion Air 737MAX8 Crashed Jakarta to Pangkal Pinang
Replies: 3187
Views: 634642

Re: Lion Air 737MAX8 Crashed Jakarta to Pangkal Pinang

I find your comments quite insulting as I clearly do understand the system, and by the terms you are using you do not. In manual flight STS,MCAS, and Mach trim are all commanded control inputs, they are BY DESIGN addded by the autopilot even on a serviceable aircraft when the pilot is manually flyi...

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by dragon6172
Wed Nov 28, 2018 9:08 pm
Forum: Civil Aviation
Topic: Lion Air 737MAX8 Crashed Jakarta to Pangkal Pinang
Replies: 3187
Views: 634642

Re: Lion Air 737MAX8 Crashed Jakarta to Pangkal Pinang

Would the crash had happened if the crew on the previous sector had known it was MCAS making the inputs and they made that entry instead of STS ? Would the crash have happened if the accident crew determined the trim movements were not desirable and used the cutoff switches like the previous crew? ...

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by dragon6172
Wed Nov 28, 2018 9:00 pm
Forum: Civil Aviation
Topic: Lion Air 737MAX8 Crashed Jakarta to Pangkal Pinang
Replies: 3187
Views: 634642

Re: Lion Air 737MAX8 Crashed Jakarta to Pangkal Pinang

There was no correct procedure as the emergency AD states that Boeing were only aware after they saw the data that an unsafe condition exists when a bad AOA can cause MCAS to trim nose down at much lower speeds than designed. This was not in the manuals. We had a pilot earlier on this thread who st...

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