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re: Update: Pilots in Ethiopian Air crash followed Boeing’s emergency procedures

Posted on 4/3/19 at 11:39 am to
Posted by Tiger Stadium 11
Charleston, SC
Member since Oct 2009
5507 posts
Posted on 4/3/19 at 11:39 am to
Two things... Had Boeing just st up with the 757 a little longer.....

And automation in these planes can be a huge asset with cockpit management and workload... but at the end of the day, it’s the pilots job to fly the damn plane, not the planes job... Boeing needs to answer that question better why it made a plane that isn’t letting that happen.

I’m actually in flight school right now and plenty of people love flying the shinny new planes with glsss cockpits and autopilots. Don’t get me wrong they’re sharp AF, but my flight instructor has made me fly every flight with only the basic six pack and a manual trim tab for every flight.... if we’re flying three hours XC, were flying those three hours by hand the whole way. It’s honestly the best thing he’s done for me to build to make me a better pilot and not rely on any automation.
Posted by Jester
Baton Rouge
Member since Feb 2006
34717 posts
Posted on 4/3/19 at 12:37 pm to
quote:

it’s the pilots job to fly the damn plane, not the planes job...


Posted by 777Tiger
Member since Mar 2011
93541 posts
Posted on 4/3/19 at 12:40 pm to
quote:

it’s the pilots job to fly the damn plane, not the planes job...


similar to a 1L future barrister, there is no one that knows more about the law
Posted by Chicken
Jackassistan
Member since Aug 2003
27671 posts
Posted on 4/3/19 at 12:46 pm to
quote:

Boeing needs to answer that question better why it made a plane that isn’t letting that happen.
because the airline executives wanted it this way.
Posted by kengel2
Team Gun
Member since Mar 2004
33863 posts
Posted on 4/3/19 at 1:44 pm to
quote:

Curious what the pilots here think about this video. LINK


And just like the video is gone. Mustve been some truth in it.
Posted by 777Tiger
Member since Mar 2011
93541 posts
Posted on 4/3/19 at 1:48 pm to
Didn’t watch the whole thing but the first thing I thought is posting that video is really frowned on by a lot a federal agencies.
Posted by Napoleon
Kenna
Member since Dec 2007
74865 posts
Posted on 4/3/19 at 7:17 pm to
Best breakdown I've seen yet

Posted by BeepNode
Lafayette
Member since Feb 2014
10005 posts
Posted on 4/3/19 at 7:22 pm to
quote:

It wasn’t immediately clear why the pilots turned the automated system back on instead of continuing to follow Boeing’s standard emergency checklist,


Probably because:

quote:

persistent steep nose-down angle.


Posted by udtiger
Over your left shoulder
Member since Nov 2006
117061 posts
Posted on 4/3/19 at 7:26 pm to
quote:

Didn’t watch the whole thing but the first thing I thought is posting that video is really frowned on by a lot a federal agencies


Annnnnnnnnnnnnnnnd, it's gone.
Posted by Chanhonam
Oakland Ca
Member since Apr 2019
18 posts
Posted on 4/3/19 at 7:27 pm to
Rip to all effected


But I blame boeing company for the failure
Posted by baldona
Florida
Member since Feb 2016
24440 posts
Posted on 4/3/19 at 7:28 pm to
If the mcas is turned off, then why were they not able to re trim the plane to level flight?

Sure, this software might be bad. But I’ve yet to see anything remotely close to showing the pilots didn’t have some major error too.
Posted by Cold Drink
Member since Mar 2016
3482 posts
Posted on 4/3/19 at 8:33 pm to
The OP is literally a WSJ link that suggests that
quote:

the pilots didn’t have some major error too.
Posted by WeeWee
Member since Aug 2012
45976 posts
Posted on 4/3/19 at 8:42 pm to
quote:

Update: Pilots in Ethiopian Air crash followed Boeing’s emergency procedures



If it's Boeing; I ain't going.
Posted by USMEagles
Member since Jan 2018
11811 posts
Posted on 4/3/19 at 9:34 pm to
quote:

If the mcas is turned off, then why were they not able to re trim the plane to level flight?


Apparently you can't turn off *just* the MCAS. You can turn off all power assist / automation associated with the trim tab, and that includes the MCAS.


Think of it like an automobile where you can override lane-keeping assistance, but doing so also turns off your power steering pump. Sure sounds like a death trap to me.
Posted by dallastigers
Member since Dec 2003
10963 posts
Posted on 4/3/19 at 9:47 pm to
I think until more is released why turning MCAS off didn’t work is being speculated a lot, but I did read the below earlier that they were first reacting to IAS disagree warning (which can be also caused by AOA sensor disagreement). This flight was going faster and closer to the ground than the Indonesian flight (but higher above sea level).

quote:

He also pointed out the high speeds observed in ET302’s FlightRadar24 trace (Figure 1) were logical. It’s a consequence of following the Emergency checklist for “IAS disagree” (IAS is Indicated Airspeed, i.e. the dynamic air pressure experienced by the aircraft) after takeoff. The combination of the preceding checklist followed by an MCAS Trim Runaway checklist could create a situation where manual trimming after a Trim Cut-Out would be difficult to impossible and would require non-checklist actions. Combined with the speed which follows from an “IAS disagree” Emergency checklist procedure the Pilot Monitoring (PM) could have problems to move the trim while Pilot Flying (PF) would fight to hold the Yoke against the elevator forces. At a larger miss-trim, the situation is unattainable.

https://leehamnews.com/2019/04/03/et302-used-the-cut-out-switches-to-stop-mcas/

Below was from flightradar24 which didn’t get the last couple of minutes before crash.


Posted by MikeD
Baton Rouge
Member since Jan 2004
8602 posts
Posted on 4/3/19 at 10:26 pm to
News just said they are blaming a bird strike that damaged a sensor causing MCAS to malfunction
Posted by nola000
Lacombe, LA
Member since Dec 2014
13139 posts
Posted on 4/3/19 at 10:44 pm to
I don't know what the frick all this flight lingo means so take this for what it's worth.

My wifes stepmother is Ethiopian, her brother, believe it or not, is a commercial pilot in Ethiopia.

Knowing them, I can't imagine them doing anything other than exactly what they were told to do. If Boeing told them to do X in Y situation, I can't see them doing anything other than exactly that.

Again, for whatever that's worth
This post was edited on 4/3/19 at 10:46 pm
Posted by baldona
Florida
Member since Feb 2016
24440 posts
Posted on 4/4/19 at 6:46 am to
(no message)
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