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19th Dec 2015, 18:37
Replies: 3,923
Views: 4,468,431
Posted By xcitation

FBW

Surely the argument of computers being between pilot and control surfaces has long vanished from relevance. Many modern aircraft cannot be directly hand flown as they are aerodynically unstable by...
16th Dec 2015, 03:54
Replies: 3,923
Views: 4,468,431
Posted By xcitation

Overspeed vs Crazy AoA. Surely there are too...

Overspeed vs Crazy AoA.
Surely there are too many variables to say which is preferable:
how much energy a/c has, are the engines at idle and how long until they can be safely spooled up without...
10th Dec 2015, 15:29
Replies: 3,923
Views: 4,468,431
Posted By xcitation

Situate, Aviate, Navigate, Communicate

TY safetypee for one of the best posts I have read in a long time. This identifies the root issue. All of these pilots knew how to fly, however they failed to understand their situation, their...
10th Dec 2015, 01:23
Replies: 3,923
Views: 4,468,431
Posted By xcitation

I recall this whilst being considered a very low...

I recall this whilst being considered a very low probability it was address in AF447 BEA final report. They raised the concept of camera's being used to record the PFDs and pilot actions.

A more...
9th Dec 2015, 18:37
Replies: 3,923
Views: 4,468,431
Posted By xcitation

Freedom of Speech on Flightdeck

Having read several official accident reports and their transcripts in almost all I see a common factor of poor crew communications. Conversely in successfully averted incidents it appears high...
7th Dec 2015, 15:40
Replies: 3,923
Views: 4,468,431
Posted By xcitation

Automatics

Clearly there is a need for improved training. However these incidents which allegedly have a significant component of pilot error will only support the trend to increased automation. I don't...
6th Dec 2015, 17:37
Replies: 3,923
Views: 4,468,431
Posted By xcitation

Perplexed

I am forced to accept the initial miscommunication "pull down".
What I cannot accept is how the FO, a french pilot would block out the grim similarity with his stick inputs to AF447. Surely FO would...
3rd Dec 2015, 06:35
Replies: 3,923
Views: 4,468,431
Posted By xcitation

Cross cockpit comms

One thing that puzzles me is why the CAPT did not take control assertively. He is 100% responsible for a/c. Did he feel FO was more situationally aware? Perhaps another similarity with AF447 is CAPT...
1st Dec 2015, 22:42
Replies: 3,923
Views: 4,468,431
Posted By xcitation

There have been airbus cases where spurious rates...

There have been airbus cases where spurious rates of descent and false stall warnings were correctly ignored. However to your point I think it helpful to add a dedicated AoA guage to avoid any...
1st Dec 2015, 21:38
Replies: 3,923
Views: 4,468,431
Posted By xcitation

@Parkfell It boils down to knowing...

@Parkfell



It boils down to knowing your a/c and not getting behind its situation.
In both this incident and AF447 the central issue appears to be PF failing to adapt/recognize the a/c...
1st Dec 2015, 20:02
Replies: 3,923
Views: 4,468,431
Posted By xcitation

Holes in the swiss cheese that lined up

If 1 or 2 of these issues had been addressed would it have been just another day at the office:

Lack of training.
Regulatory/airline policy
Solder joint fail
Poor error logging and pattern...
17th Feb 2015, 21:14
Replies: 3,923
Views: 4,468,431
Posted By xcitation

Airbus auto trims with pilots inputs not against....

Airbus auto trims with pilots inputs not against. If the automatics degrade then it leaves the trim as is. As far as I have read FAC never trims against pilots inputs. If you try and confuse auto...
14th Feb 2015, 00:47
Replies: 3,923
Views: 4,468,431
Posted By xcitation

To clarify my comment about idle detent; N1 take...

To clarify my comment about idle detent; N1 take time to spool up when changing from prolonged idle to TOGA. This is another consideration when a/c is falling out of the sky and flight control is...
13th Feb 2015, 14:38
Replies: 3,923
Views: 4,468,431
Posted By xcitation

Energy Management

My understanding is that kinetic energy is the work done to accelerate the mass of the a/c. This is increased by engine thrust or trading potential energy (losing altitude and claiming the...
12th Feb 2015, 16:10
Replies: 3,923
Views: 4,468,431
Posted By xcitation

From an interview I saw with an airbus test...

From an interview I saw with an airbus test pilot, he said that they only test a stall close to the edge of the envelope with high energy. The AF447 and air asia stall are far more lethal because the...
11th Feb 2015, 22:58
Replies: 3,923
Views: 4,468,431
Posted By xcitation

Stall diagnosis

Failure to identify stall is indeed remarkable. You have highly qualified pilots looking at stall warning lights & sounds, crickets, an PFD pointing up 10 deg, airspeed decaying to below 60knots, vsi...
11th Feb 2015, 02:36
Replies: 3,923
Views: 4,468,431
Posted By xcitation

Sounds like he had to work his way up in both the...

Sounds like he had to work his way up in both the Air Force and Airlines. No fast track Academy or short cuts.

Iriyanto joined the air force for a 10-year service term, climbing the ranks to first...
10th Feb 2015, 23:34
Replies: 3,923
Views: 4,468,431
Posted By xcitation

I take your point about the lack of recent manual...

I take your point about the lack of recent manual flying. This over automation issue has more to it as it affects pilots across a wide range of experience. That said the Captain is the highest...
10th Feb 2015, 18:28
Replies: 3,923
Views: 4,468,431
Posted By xcitation

How do you define "oldies"? Apparently 20'000...

How do you define "oldies"?
Apparently 20'000 hours did not help in this incident:

AirAsia

Captain (53)
Air Force veteran, was very experienced, with around 20,000 flying hours under his...
9th Feb 2015, 19:52
Replies: 3,923
Views: 4,468,431
Posted By xcitation

Something like this: ECAM gives details ...

Something like this:

ECAM gives details
PFD shows icons reflecting degraded protections.

Alternate
Amber XX's replace the green attitude limits on the PFD.
The PFD airspeed scale is...
9th Feb 2015, 02:09
Replies: 3,923
Views: 4,468,431
Posted By xcitation

Interesting idea. In fact GPS is amazingly...

Interesting idea.
In fact GPS is amazingly accurate when used differentially to calculate attitude down to sub mm accuracy. The timing pulses in the GPS satellite data packets are used to generate...
6th Feb 2015, 15:42
Replies: 3,923
Views: 4,468,431
Posted By xcitation

With a hatch forward of the engines there is a...

With a hatch forward of the engines there is a risk of the test pilot causing foreign object damage to the engines! Or would you wait for them to spool down :ouch:
4th Feb 2015, 03:56
Replies: 3,923
Views: 4,468,431
Posted By xcitation

@Capn Bloggs It makes sense to have both....

@Capn Bloggs

It makes sense to have both. The tech needs to be constantly improved and refined. Always agree with more manual training and I would modify the certification for type to include a...
4th Feb 2015, 00:28
Replies: 3,923
Views: 4,468,431
Posted By xcitation

Something more radical is required rather than...

Something more radical is required rather than the apparently easily ignore audio "stall", cricket, and warning lights.
If we are able to identify the stall from the FDR then the system can be...
1st Feb 2015, 02:47
Replies: 3,923
Views: 4,468,431
Posted By xcitation

@glendalegoon I would think it reasonable to...

@glendalegoon
I would think it reasonable to expedite things by resolving minor issues however there is a safety line somewhere. If that means having to return and make maintenance replace an error...
1st Feb 2015, 01:03
Replies: 3,923
Views: 4,468,431
Posted By xcitation

@glendalegoon Your logic is solid and...

@glendalegoon

Your logic is solid and convincing however I just don't believe it to be the case.
Maybe they were already in a loss of control situation, a/c in abnormal attitude and unstable. He...
31st Jan 2015, 23:33
Replies: 3,923
Views: 4,468,431
Posted By xcitation

@glendalegoon I understand your allegation...

@glendalegoon

I understand your allegation however do not subscribe to it.
What would be his risk vs reward? You are alleging that ground maintenance was performed in the air for the sake of...
31st Jan 2015, 22:34
Replies: 3,923
Views: 4,468,431
Posted By xcitation

@bugg smasher Would it make sense to have an...

@bugg smasher
Would it make sense to have an easier way to revert to direct law without checklists/power off 2 out of 3 ADRU's. That way direct law can be entered in a safe and simple process more...
31st Jan 2015, 20:24
Replies: 3,923
Views: 4,468,431
Posted By xcitation

@glendalegoon Well said, follow the QRH...

@glendalegoon

Well said, follow the QRH checklist. I would be interested to see which QRH sections refer to touching the breakers. That would give an idea of the indications that led to the...
30th Jan 2015, 18:04
Replies: 3,923
Views: 4,468,431
Posted By xcitation

The weather avoidance is just one hole in the...

The weather avoidance is just one hole in the swiss cheese. Also they might have penetrated an exceptional CB: super cooled water blocking sensors, huge ice particles, lightning flash, extreme turb,...
12th Jan 2015, 19:39
Replies: 3,923
Views: 4,468,431
Posted By xcitation

After it sinks the current will move the wreckage...

After it sinks the current will move the wreckage until it becomes anchored to the sea bed e.g. it skidded along the bottom until rotated so the VS lodged into the sea bed.
11th Jan 2015, 22:33
Replies: 3,923
Views: 4,468,431
Posted By xcitation

With all due respect in this case you are wrong. ...

With all due respect in this case you are wrong.
We are not talking about ejector seats for every passenger. Just agreement by commercial airlines to use what Inmarsat are offering for free - a...
11th Jan 2015, 05:07
Replies: 3,923
Views: 4,468,431
Posted By xcitation

Saving lives

Consider the fact that military aviators and others have been rescued quickly with such technology. If it saved the life of one person it would be worth it. Do a trial period of say 5 years, if it is...
9th Jan 2015, 20:22
Replies: 3,923
Views: 4,468,431
Posted By xcitation

Toruk Macto Airbus has AOA protections so...

Toruk Macto
Airbus has AOA protections so having a dedicated AOA instrument is deemed less important by some people. This is a much argued controversy.
The stall warning is the most basic AOA...
8th Jan 2015, 19:49
Replies: 3,923
Views: 4,468,431
Posted By xcitation

@Volume I recall that the trim works as...

@Volume


I recall that the trim works as an averaging function of the pilot inputs. PF on 447 was "mixing the mayonnaise" using the side stick with strong bias to nose up function. If he had...
Showing results 1 to 35 of 40
 


 
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