PPRuNe Forums

PPRuNe Forums (https://www.pprune.org/)
-   Rotorheads (https://www.pprune.org/rotorheads-23/)
-   -   SAR S-92 Missing Ireland (https://www.pprune.org/rotorheads/592162-sar-s-92-missing-ireland.html)

dClbydalpha 4th May 2017 21:22

DB I agree totally, technology and automation will continue to develop. There needs to be significant work done on establishing the rule-set for "safe" automation. Automation in my opinion needs to be immersive or transparent i.e. the pilot should have full intuitive understanding of what the automation is doing or should have no need to understand in order to resolve any situation. Over the last couple of decades we appear to have reached a point between the two which is worse. This results in the pilot being suddenly required to take full control of the situation without the situational or state awareness built by being connected to the actions that led up to that scenario. Massive increase in workload while simultaneously being robbed of the automation that could reduce the workload.

Strangely enough it seems more important to consider the human factors the more we automate things.

jimf671 4th May 2017 23:47


Originally Posted by llamaman (Post 9761239)
I'm not convinced the accident rate stats back-up the rose-tinted spectacle view Crab. ... ...


The numbers back you up llamaman.

In recent years we have spent a lot of time on pprune discussing accidents with new-ish large rotorcraft types (92 & 225) whose forty-odd total fatalities across 12+ years of service are a small fraction of the fatalities in some older types. Since the 1960s when this size of rotorcraft began to emerge, probably between five and ten thousand people have died in them. Many of those didn't make the papers and only a small fraction have been discussed in depth on the internet.

gulliBell 5th May 2017 00:51


Originally Posted by llamaman (Post 9761285)
...Unfortunately, like most complex socio-technical systems, it takes failure to stimulate progress.

So true. Without the Apollo 1 failure NASA probably wouldn't have made it to the moon by the end of the decade, if ever.

DOUBLE BOGEY 5th May 2017 03:40

Ah Gullibell........did they make it to the Moon?

SASless 5th May 2017 04:11

Nah.....twas filmed in the wilds of Nevada at a place called Groom Lake.;)

[email protected] 5th May 2017 07:02


The numbers back you up llamaman.
In recent years we have spent a lot of time on PPRuNe discussing accidents with new-ish large rotorcraft types (92 & 225) whose forty-odd total fatalities across 12+ years of service are a small fraction of the fatalities in some older types. Since the 1960s when this size of rotorcraft began to emerge, probably between five and ten thousand people have died in them. Many of those didn't make the papers and only a small fraction have been discussed in depth on the internet.
but trying to compare aviation in the 60s and 70s to today is like trying to compare motor racing then and now.

The number of fatalities has drastically reduced because the accident rates forced improvements in safety - it has nothing to do with handling skills or lack thereof, modern F1 drivers and incredibly skilled but they crash less and survive more when they do because of safety improvements in construction and engineering. The same applies to aviation so a simple stats analysis of numbers of crashes or lives lost isn't really valid.

As with motorsport, aviation is on a journey to constantly improve performance and efficiency whilst making the whole process safer.

As we have discussed, automation (and our reliance upon it) has to be introduced, administered and monitored wisely.

puntosaurus 5th May 2017 08:56

I'd be very surprised if inappropriate use of automation finds its way close to the top of the causes of this accident.

Either you as an operator or you as a crew know that a 10mile cruise at 200ft in bad weather downwind to a fixed land base is a bad idea or you don't. How you then handle that cruise is a bit of a secondary issue.

I wonder how many other lessons need to be relearned the hard way ?

SASless 5th May 2017 10:32

Crab,

I agree with all that but your penultimate paragraph identifies a problem.....the individual Pilot and Crew Member along with everyone in the process....and Operator and Authority must also see that there are no pauses, detours, or stays to that journey towards improvement.

I would suggest we might be seeing some systemic failure on display here that caught some folks out one dark night that caused them to pay a terrible price for that.

Formula One cars fail to win races unless all the bits and pieces come together to provide the driver a Ride that will afford him a chance to win if his performance is up to the task.

[email protected] 5th May 2017 12:24


I'd be very surprised if inappropriate use of automation finds its way close to the top of the causes of this accident.
no, but the slavish following of the FMS to the detriment of basic airmanship might.

puntosaurus 5th May 2017 12:59

Absolutely, that was my point.

Although to be fair, the slavish following of the FMS wasn't nearly as damaging as the decision to do it at 200ft.

BluSdUp 6th May 2017 21:47

Back to basics!
 
As i have been freighting tourists and Hen-parties across Europe the last week, I have just read and not posted on this thread.

I must say the latest comments has been more productive, safety vise.

I compare this one to the FMS Cali accident and the New Zealand DC10 Antartic CFIT.

Basically modern equipment trusted and directly drilling a hole into the Swiss cheese.

I fly with the children of the magenta line and I am there to remind them that the basics are King , Always !

There is many contributing factors as in most CFIT, but some of the modern Duhikkies are at times counter productive.

I was just out fishing and a Norwegian SeaKing passed over my row boat.
The best SAR crew in the world the RNoAF , soon getting new and modern equipment.
I am going to miss that distinct sound.

Anyway, I hope they keep a healthy combination of old , trusted procedures and new and helpful ones. I am trust they will.

This Company and Crew has indeed shown us not to blindly trust modern equipment and at the same time disregard basics .

Thunderbirdsix 9th May 2017 17:51

Royal Navy Crewman airlifted to Hospital from Submarine
 
Great result by Rescue 118 who carried out the rescue while Rescue 115 flew top cover


Irish Coast Guard helicopter airlifts injured sailor from British Navy submarine | BreakingNews.ie

dClbydalpha 9th May 2017 19:40


Originally Posted by BluSdUp (Post 9763218)
...
I was just out fishing and a Norwegian SeaKing passed over my row boat.
The best SAR crew in the world the RNoAF , soon getting new and modern equipment.
I am going to miss that distinct sound.

Anyway, I hope they keep a healthy combination of old , trusted procedures and new and helpful ones. I am trust they will.
...

I am sure 330 SKV have the expertise to make the most of their new aircraft with all its latest technology.

Jemy 12th May 2017 22:53

Just a personal note. If there is to be a memorial service I would be much obliged if someone would PM me details as I may miss any announcement as I'm no longer in the ROI. I worked with a couple of the crew some years ago and would very much like to pay my respects.

malabo 16th May 2017 04:00

Irish S-92 Accident Report Paints Picture of Confusion | Business Aviation News: Aviation International News

AIN on-line article by Mark Huber misleadingly titled "Irish S-92 Accident Report Paints Picture of Confusion". There was no confusion. Every crew member thought the aircraft flightpath was following the absolute correct procedure, nothing was challenged. Even the rear crew penultimate suggestion to "come right" was met with deliberate and paced response from both pilots.

helicrazi 16th May 2017 11:05


Originally Posted by malabo (Post 9772319)
Irish S-92 Accident Report Paints Picture of Confusion | Business Aviation News: Aviation International News

AIN on-line article by Mark Huber misleadingly titled "Irish S-92 Accident Report Paints Picture of Confusion". There was no confusion. Every crew member thought the aircraft flightpath was following the absolute correct procedure, nothing was challenged. Even the rear crew penultimate suggestion to "come right" was met with deliberate and paced response from both pilots.

I think the confusion is exactly HOW they thought they were absolutely correct...

gulliBell 16th May 2017 12:09

A lot of pilots here, presumably with various degrees of experience in various roles, have read the CVR transcript and have arrived at various understandings of what was meant by what was said. This is the problem. I recall very early in the discussion here, it was reported, I think in the context of what is good CRM, that an ex-military pilot was overheard to say, when I press the mic I just want everybody to understand what I say.
I think @helicrazi has made an astute observation that confusion is exactly how they thought they were absolutely correct.

SASless 16th May 2017 12:46

Is there a difference between "Why" and "How" when it comes to the "confused" situational awareness?

Twist & Shout 16th May 2017 14:54

How do you overcome the "incorrect certainty" about a situation?

Potentially, an experienced pilot says something like "nothing higher than 30' here" (after misreading a 300' spot height)

I've been in many situations where something like this has been accepted as fact, and everything is predicated/explained based on an "incorrect certainty" (many not in aviation)

It might seem a farcical/extreme example but I can easily imagine the "certainty" of there being "nothing higher than 30'" resulting in a comment to "write up the faulty rad alt" when it trips unexpectedly for e.g.

Sure in hindsight it's obvious, but at the time, it can be anything but.

In a two crew situation, I feel it's not viable to check/question every statement.

Trying to explain myself:

After start, for a mission requiring 100% fuel. Add in nighttime and a little perceived time pressure.

"We have full fuel right?"
"I topped it to the bottom of the filler, dribbled it in until another drop wouldn't fit, waited for it to settle, dribbled a few drops more till it over flowed. It's full!"

The fuel status might now be beyond doubt, and any anomalies explained away as indication problems.

A fuel leak, or fueling WEX, and now sitting in WXE, are mentally discounted (especially if WXE is coincidentally filled to 90%)

How do we combat this type of error?

dClbydalpha 16th May 2017 15:59

I think it's important to make a distinction between confusion and incorrect SA.

Confusion is a lack of understanding or lack of confidence in the information presented. This crew showed no sign of questioning that accompanies confusion. Compare this with the transcript of AF447, where everyone is trying to grasp what is going on.

I am convinced that this crew started the last phase of the flight with a clear, albeit incorrect, mental picture of what was ahead and how they would deal with it. Nothing in that aircraft, crew, training, procedure or technology was compelling enough to cause a re-assessment of that mental picture. In fact, it appears that most cues were readily incorporated into the existing SA. Until the moment that something untoward was seen on the electroptics.


All times are GMT. The time now is 08:05.


Copyright © 2024 MH Sub I, LLC dba Internet Brands. All rights reserved. Use of this site indicates your consent to the Terms of Use.