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Search: Posts Made By: L39 Guy
Showing results 1 to 35 of 55
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Forum: Rumours & News
18th May 2019, 20:52
Replies: 185
Views: 161,245
Posted By L39 Guy

So when do you think it crosses the line and...

So when do you think it crosses the line and becomes a Stab Trim Runaway and pilot intervention is required? After 5 secords, a minute or how about in terms of pitch change? 5 degrees, 10 degrees?...
Forum: Rumours & News
18th May 2019, 20:45
Replies: 185
Views: 161,245
Posted By L39 Guy

This comment was directed to the individual that...

This comment was directed to the individual that thought that pulling the power off on an aircraft like the B737 (with under wing engines) was the worst thing one could do to counteract a nose down...
Forum: Rumours & News
18th May 2019, 17:39
Replies: 185
Views: 161,245
Posted By L39 Guy

No, I am relying upon the preliminary report from...

No, I am relying upon the preliminary report from the accident flight and it does not have any detail of where the stab trim went to before they did the stab trim NNC. Perhaps they thought that...
Forum: Rumours & News
18th May 2019, 17:30
Replies: 185
Views: 161,245
Posted By L39 Guy

The source of the activation is academic, the...

The source of the activation is academic, the result is what matters and the result is the aircraft not doing what the pilot, manually flying it, is commanding it to do.

As far as Boeing CYA, how...
Forum: Rumours & News
18th May 2019, 17:17
Replies: 185
Views: 161,245
Posted By L39 Guy

They experienced the full meal deal MCAS so I...

They experienced the full meal deal MCAS so I would suggest that they were way out of trim too.

The big difference between them and the accident flights is that they executed the UAS drill after...
Forum: Rumours & News
18th May 2019, 17:12
Replies: 185
Views: 161,245
Posted By L39 Guy

STS is an expected trim action that one learns...

STS is an expected trim action that one learns about and experiences with the procedures trainer, simulator and his or her first line trip. Moreover, STS works to bring the aircraft into trim, not...
Forum: Rumours & News
18th May 2019, 15:52
Replies: 185
Views: 161,245
Posted By L39 Guy

Yes, it runs via the jackscrew but one does not...

Yes, it runs via the jackscrew but one does not let it get to the limit of the jackscrew before taking action on a stab trim runaway.
Forum: Rumours & News
18th May 2019, 15:51
Replies: 185
Views: 161,245
Posted By L39 Guy

True about the differences in the functionality...

True about the differences in the functionality of the trim switches however the emergency procedure is identical, i.e. turn off both switches, is it not?

I can't speak for the simulator, its...
Forum: Rumours & News
18th May 2019, 15:44
Replies: 185
Views: 161,245
Posted By L39 Guy

Really? Show me where in the Boeing manuals that...

Really? Show me where in the Boeing manuals that a Stab Trim Runaway is a case where the trim runs continuously to the limits of the jackscrew?

And how, as a pilot if you are a pilot, are you to...
Forum: Rumours & News
18th May 2019, 15:25
Replies: 185
Views: 161,245
Posted By L39 Guy

You are correct in noting these accidents, two of...

You are correct in noting these accidents, two of which are fatal. That, in 9 years from a fleet of 82 aircraft today.

Bend alot likes to cherry pick data including an earlier post with a start...
Forum: Rumours & News
18th May 2019, 14:43
Replies: 185
Views: 161,245
Posted By L39 Guy

Your analysis is largely correct except that...

Your analysis is largely correct except that Boeing assumed that pilots would be able to manage this situation as an MCAS failure exhibits identical characteristics to a pilot as a well known...
Forum: Rumours & News
18th May 2019, 05:19
Replies: 185
Views: 161,245
Posted By L39 Guy

Better safety records does not necessarily mean...

Better safety records does not necessarily mean better pilots. As I demonstrated, the operating environment in Canada, one of the factors in safety records among others such as pilot training,...
Forum: Rumours & News
18th May 2019, 05:14
Replies: 185
Views: 161,245
Posted By L39 Guy

I don’t think personal insults are warranted. ...

I don’t think personal insults are warranted.

I don’t know about you but I use flight controls like the elevator and stab trim to control pitch not engine thrust moments. Maybe I am doing...
Forum: Rumours & News
18th May 2019, 05:10
Replies: 185
Views: 161,245
Posted By L39 Guy

Did I say that? Please reread my post. Carefully....

Did I say that? Please reread my post. Carefully.

It’s a fools game to say who are better or worse...the Operating environment in Canada is a difficult and unforgiving environment and the...
Forum: Rumours & News
18th May 2019, 03:42
Replies: 185
Views: 161,245
Posted By L39 Guy

It’s true that underwing mounted engines creating...

It’s true that underwing mounted engines creating a pitching moment. I would submit that on balance the decrease in speed and hence control forces would be significantly more beneficial than the...
Forum: Rumours & News
18th May 2019, 03:39
Replies: 185
Views: 161,245
Posted By L39 Guy

The safety record of “western” airlines is pretty...

The safety record of “western” airlines is pretty damn good and no one has to be ashamed or apologize for that. How many fatal jet crashes in Canada? 2011, a B737 at Resolute Bay. Prior to that, 1989...
Forum: Rumours & News
18th May 2019, 03:29
Replies: 185
Views: 161,245
Posted By L39 Guy

Pull the power back and the speed decreases and...

Pull the power back and the speed decreases and so do the control forces, roughly 1/velocity^2. Half the speed, one quarter of the force required.
Forum: Rumours & News
18th May 2019, 02:15
Replies: 185
Views: 161,245
Posted By L39 Guy

Human factors issues why they did not do a...

Human factors issues why they did not do a simple, memory checklist? If that is the case, the travelling public is doomed if professional pilots couldn’t even do a simple drill of turning off the...
Forum: Rumours & News
8th May 2019, 09:13
Replies: 5,109
Views: 13,118,952
Posted By L39 Guy

So Gordon, what would make you happy? A massive...

So Gordon, what would make you happy? A massive mea culpa from Boeing saying something like "It's all our fault. We screwed up. We gamed the system. We were naughty."

As many pilots like myself...
Forum: Rumours & News
8th May 2019, 09:06
Replies: 5,109
Views: 13,118,952
Posted By L39 Guy

Funny guy. First, there appears to be no jet...

Funny guy. First, there appears to be no jet aircraft in Botswana's airline industry (https://en.wikipedia.org/wiki/List_of_airlines_of_Botswana) so that was a bad choice to make jet comparisons.
...
Forum: Rumours & News
8th May 2019, 08:11
Replies: 5,109
Views: 13,118,952
Posted By L39 Guy

Runway overrun in Florida and the B767 in...

Runway overrun in Florida and the B767 in Houston? Fair enough although let's see what caused the B767 accident first. But if you want to delve into overruns, check out avherald.com and see the...
Forum: Rumours & News
8th May 2019, 08:04
Replies: 5,109
Views: 13,118,952
Posted By L39 Guy

I spent part of my instructing time in standards,...

I spent part of my instructing time in standards, i.e. upholding the standards. And part of the "standard" is human factors such as being able to cope with emergencies complete with bells and...
Forum: Rumours & News
7th May 2019, 22:16
Replies: 5,109
Views: 13,118,952
Posted By L39 Guy

I think everyone is in agreement that MCAS needs...

I think everyone is in agreement that MCAS needs to be fixed.

None of the aviators that have defended Boeing or MCAS find this situation “acceptable” at all. What we have a hard time accepting is...
Forum: Rumours & News
6th May 2019, 21:46
Replies: 5,109
Views: 13,118,952
Posted By L39 Guy

That simulator sequence at the beginning was...

That simulator sequence at the beginning was interesting to see. If that wasn't a stab trim runaway I don’t know what is. Uncommanded pitching of the nose (down in this case) and spinning of the trim...
Forum: Rumours & News
6th May 2019, 21:08
Replies: 5,109
Views: 13,118,952
Posted By L39 Guy

Another factor is that given the dependence on...

Another factor is that given the dependence on automation these pilots may have never trimmed this aircraft or any others in their airline career.

Consider that if the airline policy was to use...
Forum: Rumours & News
5th May 2019, 22:17
Replies: 5,109
Views: 13,118,952
Posted By L39 Guy

I can’t speak for the 737 as I don’t fly it but I...

I can’t speak for the 737 as I don’t fly it but I fly the 787 with a similar procedure.

Like everything else, common sense and airmanship. Boeing (or Airbus, etc) can’t write a procedure for every...
Forum: Rumours & News
4th May 2019, 22:22
Replies: 5,109
Views: 13,118,952
Posted By L39 Guy

It's true that the 777 had some quirks with the...

It's true that the 777 had some quirks with the auto-throttle that contributed to these (non-fatal) accidents but nevertheless in the case of SFO four pilots in the cockpit watched the speed decay to...
Forum: Rumours & News
4th May 2019, 22:09
Replies: 5,109
Views: 13,118,952
Posted By L39 Guy

Please, let's not personalize this and attack...

Please, let's not personalize this and attack individuals. 737 Driver has invested a lot of time and effort in addressing a lot of issues raised on this thread and for that he deserves everyone's...
Forum: Rumours & News
4th May 2019, 21:11
Replies: 5,109
Views: 13,118,952
Posted By L39 Guy

Fly the damn airplane...

Ancient Mariner: All this grandstanding makes me wonder if some of you have been in an emergency, a real emergency?
I've been fortunate/unfortunate enough to have been in a few, albeit maritime, not...
Forum: Rumours & News
3rd May 2019, 10:55
Replies: 5,109
Views: 13,118,952
Posted By L39 Guy

Runaway Stabilizer: Uncommanded stabilizer trim...

Runaway Stabilizer: Uncommanded stabilizer trim movement occurs continuously. (Source B737 NNC)
Forum: Rumours & News
3rd May 2019, 10:47
Replies: 5,109
Views: 13,118,952
Posted By L39 Guy

Yes, the overhead panel is 1960’s but the cockpit...

Yes, the overhead panel is 1960’s but the cockpit displays, FMS, engines, wings, and other major components sure aren’t. The point is not a part by part count but the major components of the MAX are...
Forum: Rumours & News
3rd May 2019, 06:51
Replies: 5,109
Views: 13,118,952
Posted By L39 Guy

A stab trim runaway affecting the fly ability of...

A stab trim runaway affecting the fly ability of the aircraft is no time to “figure out “ anything. The figuring out happens back on terra firma. Whether the source of the runaway is a short circuit...
Forum: Rumours & News
3rd May 2019, 06:21
Replies: 5,109
Views: 13,118,952
Posted By L39 Guy

Air This “problem” didn’t have to be solved in...

Air
This “problem” didn’t have to be solved in seconds. It’s not as if the aircraft is on fire. As pointed out earlier, the ET aircraft flew for almost two minutes with UAS before the flaps were...
Forum: Rumours & News
3rd May 2019, 04:02
Replies: 5,109
Views: 13,118,952
Posted By L39 Guy

That’s a fair point. My response and likely that...

That’s a fair point. My response and likely that of my “cohorts” is this: what was presented to the three crews upon lift-off was a classic Unreliable Airspeed (UAS) scenario which is a an emergency...
Forum: Rumours & News
3rd May 2019, 03:35
Replies: 5,109
Views: 13,118,952
Posted By L39 Guy

With the exception of the hull, the MAX is an...

With the exception of the hull, the MAX is an entirely different aircraft than the original B737-100 or even the NG’s. Different wing, engines, avionics, APU, landing gear, etc. If they called it a...
Showing results 1 to 35 of 55
 
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