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-   -   AF 447 Thread No. 5 (https://www.pprune.org/tech-log/456874-af-447-thread-no-5-a.html)

grity 31st July 2011 15:12

the stick move of first 10 sec. after AP disconect 2:10:07 --- 2:10:18
the moves are more or less horizontal so I think he did not realise that he pulled, just fight with the rolling ship....left right left right left right.... realising that he had no longer correct speed at this time
http://s7.directupload.net/images/11...p/osapfdgy.jpg

ChristiaanJ 31st July 2011 15:13


Originally Posted by BOAC (Post 6609162)
- ah - thanks for that. I am waiting for Wednesday to download that.

Re 'p114', be careful...
From personal experience, with a typical French-to-English translation, the wordcount and pagecount of the English text tend to be in the order of 20% less than those of the French text.
So p'114' in the French report is unlikely to be the same page as in the English translation......

bearfoil 31st July 2011 15:17

grity

If he didn't know he pulled, and the a/c had been in Normal Law at that point, would the FCS know that he didn't know? Otherwise occupied with his Roll problems, what was his PITCH 'up to' ?

SaturnV 31st July 2011 15:22

whenrealityhurts,

No lightning. No lightning strikes.

Dark night, in the clouds, flying through ice crystals, moderate+ turbulence, on the periphery of a Cb cell, that's the environment outside.
_________________________
An A-320 flying between Paris and Geneva at FL 270 in and out of the clouds in daylight when the crew suddenly spotted a Cb ahead (unanticipated), couldn't quite get around it. The turbulence knocked a generator off-line, and the captain's panels went dark. Stuff happens. But there is no indication of something similar happening to AF 447.

Interesting that, in the Geneva flight, the turbulence was sufficient to send loose material in the cockpit flying about, one item cracking the co-pilot's headset.

The BEA 'lessons learned' report didn't identify the airline or give the incident date, but that crew also was inattentive to its radar.

3holelover 31st July 2011 15:52

At the risk of making myself appear more foolish than I already have, I feel compelled to offer an observation;

Some time back, in one of these threads, someone posted a link to some utubes of some Airbus simulator training in progress. At the time, probably because I've had very little experience in the pointy end during flight, I was struck by the "automaton" nature of the behaviours I saw. I thought it truly looked as though pilots had become mere accessories to the computers, with little room for thought and/or any sense of actually "piloting" their machines.

It looked to me, as I watched the gents twiddling knobs and going through checklists and pecking away at keys, that these sorts of pilots had been programmed to deal with their jobs as a computer tech might with his network administration tasks.

It struck me that these were not at all like the pilots of old who could fly any big old bird with several broken bits and malfunctioning whatnots, because they knew the basics of keeping their machine in it's element.

"Two kinds of pilot" I thought. "Old" and "New". "Old" could fly almost anything with wings, but not a newer, glass and computer machine. "New" could fly the computer generation "smart" birds, but probably not an old DC3.

I'm still mulling over those distinctions, but it has occurred to me more recently that this particular airplane needed both kinds of pilot, and the two "New" types that were in the seats just had none of the abilities of that "Old" type. I simply cannot fathom any of the type "Old" failing to recognize a stall. ... at any point during a 35000ft descent.

These poor blighters were more computer programmers than pilots. They needed an old geezer.... and when their best shot at that re-entered the cockpit, he'd missed the beginning of it all, and in any case his AF training had probably left a whole quilt of cobwebs on any "Old" pilot within him.

Smilin_Ed 31st July 2011 16:06

Amen, 3holelover
 
You have it right 3holelover. As Old Carthusian pointed out a couple of pages back, the overall AirBus safety record is splendid, but clearly when things go wrong, the Bus needs someone who can fly an airplane.

airtren 31st July 2011 16:09

Bearfoil,

I am going to do my best to answer, as I can't fully parse your post, and am guessing that my post have have been unclear, and thus difficult to understood.

My post was only referring to the fact that the PF's action on the SS could have had a good reason to have a NU component, due to the context of the pitch/roll/power state of the plane left to him immediately after the AP disconnect.

That as opposed to those that are the opinion that there was no reason for a NU action..

As far as the AF 447 accident, I mentioned several times that IMO, there are multiple confluent causes, which the "pitot tubes" are only a part of, in one category, and part of multiple classes in that category. The category is "a/c components failure".


Originally Posted by bearfoil (Post 6609694)
airtren

Would you consider other than Pitot issues as cause? That would involve other than a "time interval" approach? The A/P is 'dynamic' (constant) in its inputs, No? So the disconnect is "instant", not sequential? The important vector is the 'logic' of its loss? Not the "cause"?

So also the discussion involves a possible "remnant" of NORMAL LAW? Unfortunately, this introduces "mode Confusion".


bearfoil 31st July 2011 16:13

It may be out of character for me to say, but AirBus had 32 episodes of some hairy UAS that ended "well".

Neither Black, nor White, the upshot of 447 is that the Pilots may not have been ready, the a/c was, and neither could save the flight from destruction. Isolating any one 'format' is not helpful, there is a SYSTEMIC problem.

That said, 3hl and :)Ed are also exactly correct.

airtren. I get your post perfectly. Isolation of events is proper, as is a "global View". Neither is helpful, if all things as a whole are not considered together.

"Somewhere between "Do Nothing" and ACM".... is the 'moving' target?
(relative to a/p loss/handover)........

airtren 31st July 2011 16:17

Thanks for posting Grity,

I think there is a possibility that with no training/practical experience in using the SS in Alternate 2, with no pitch/roll protections, he not only didn't realize that his amplitude of commands is excessive.

Based on the graphs, I also think that he didn't realize that his perceived Neutral Position of the SS, was in fact "off-neutral", on the NU side, and thus what he thought that it's a return of the SS to Neutral, was in fact a SS NU command.


Originally Posted by grity (Post 6609711)
the stick move of first 10 sec. after AP disconect 2:10:07 --- 2:10:18
the moves are more or less horizontal so I think he did not realise that he pulled, just fight with the rolling ship....left right left right left right.... realising that he had no longer correct speed at this time
http://s7.directupload.net/images/11...p/osapfdgy.jpg


PA 18 151 31st July 2011 16:28


Originally Posted by 3holelover (Post 6609790)
These poor blighters were more computer programmers than pilots. They needed an old geezer.... and when their best shot at that re-entered the cockpit, he'd missed the beginning of it all, and in any case his AF training had probably left a whole quilt of cobwebs on any "Old" pilot within him.

Don't agree on that single point.

The PF said he didn't have control of the plane. In fact he had full control of the plane, he was just a muppet.

Captain turns up, PF says aircraft out of control, what's the captain supposed to think? He has to believe the PF, that the aircraft is out of control, and he (and PNF who should have caught this sooner) simply ran out of time to work out it wasn't.

Reading that CVR transcript, words fail me.

The PF fooled them both and a couple of hundred people died.

ChristiaanJ 31st July 2011 16:30

3hl,
Not a bad write-up... thanks.
Somebody in a much earlier post referred to the 'video game generation'.
That may be a bit excessive, but there is some underlying truth in it.

There were autopilots in the 'olden' days (even the pre-WWII 'very olden days'), but they only did the simple jobs, like ATT HOLD, ALT HOLD, HDG HOLD, and suchlike, relieving the human pilots from the mind-numbing (on long flights) task of simply maintaining altitude or heading, without letting them lose 'situational awareness'.

'George' was a much-appreciated crew-member in those days. Nowadays, 'HAL' is no longer looked at in the same way.....

bearfoil 31st July 2011 16:33

Something like a wing leveler was in there at the start?

Welsh Wingman 31st July 2011 16:46

3holelover
 
Good post. You have to embrace new technology, but build on the basics of the past. Buying a satnav for your car doesn't justify no longer being able to read a road atlas, just in case, if we are talking analogies. Old drivers should learn to use their satnav, and new drivers should still learn how to read a road atlas. It's not old ways v new ways. There were enough clues for most old school flyers to have recognised an aerodynamic stall, and there are enough references from the BEA to the effect that there was insufficient high altitude crew manual flight training (AF and generally). Something has gone awry in training and the human/aircraft interface, probably due to commercial pressures that have sadly prevailed, so it needs to be remedied. There is no IAS event without the substandard pitots, but pilots are there to deal with such problems.

Level100 31st July 2011 16:46

jcjeant,
referring to your post,


I'm happy that at least two people read my message ...
Unfortunately those two people don't understand why I posted this message (certainly Lemurian)
I wanted to put the light on a discripancy between the two reports.
This is about the licences of the PF (and this is a important point)
Read again ... if you had not seen the PF licenses discripancy as reported by........ BEA
I always read your posts (:ok:), but I still fail to see your fine point in this particular
one, notwithstanding your appeal to participate in a boy-scout like scavenger hunt (I think that's about what the French "jeu de piste" means, or, since your German is probably fine: "Schnitzeljagd":rolleyes:).
Surely you do not want to infer in a definite manner that the terms used (remember also, we speak of the years 2000/1) in the 1st report mean a JAR licence (e.g. the word JAR does not appear) whereas the present one rather would hint a national professional pilot (but with out using the abreviation PP actually!)?
So what exactely do you think is of any significance here for the genesis of the accident?
Cheers

CONF iture 31st July 2011 17:58


Originally Posted by HN39
More analysis to be done by BEA (and perhaps me). Why did AP and A/THR disconnect 2 seconds before the speeds dropped?

The trace on page 110 shows a Mach drop at the time of the AP disconnect.
Q. Is there only one Mach source to be registered ?

AoA 1 seems to be almost locked to 2.1 deg for the initial climb, up to the time 2 10 51.
Q. What's the consequence on the Flight Control System ?

THS never moved during the initial climb ... Why is that ?
Is it G related ?
Is it Protection related ?
THS trace is absent from page 31 and 32 graphics ... Why is that ?
ELEVATORS traces are also absent from those graphics ... Why is that ?


Originally Posted by P44
Ainsi, il apparaît à ce stade des travaux que l’essentiel des mouvements de l’avion dans l’axe longitudinal (assiette, vitesse verticale, altitude) est le résultat des actions du PF, à l’exception de faibles variations vraisemblablement dues à l’aérologie.

... not too impressed by that one.


Originally Posted by P26
L’exploitation des 5 fichiers audio déchargés a permis de mettre en évidence que l’événement ne se trouvait pas à la fin de l’enregistrement des 5 pistes et que leur durée était inférieure de plusieurs dizaines de secondes aux valeurs attendues.
La synchronisation des différentes voies a montré qu’une partie des données était manquante. Par ailleurs, l’exploitation du contenu binaire de la mémoire EEPROM confirme l’incohérence des pointeurs utilisés par le moyen de lecture du constructeur pour débuter et terminer le déchargement des données.

And of course so not impressed by those comments on the CVR ...

No reason for the victim's families (especially pilot's families) to not obtain the numeric data.

Has anyone seen further comment on the WRG ACARS message ?

mosteo 31st July 2011 18:32

On the initial roll
 
My apologies if this has been pointed before, I've read all the posts but for the ones from a couple posters that I skip over some of the time.

Just to settle a minor point that has sometimes in the past been discussed, this report clearly identifies the reason for the uncommanded initial roll to right:

p.76:

La présence de turbulences, mise en évidence par l’activité du PA pour contrôler le roulis dans les secondes qui ont précédé, a provoqué à sa déconnexion un départ de l’avion en roulis à droite jusqu’à environ 8°.
My translation (caveat: I'm not French nor English native speaker):

The presence of turbulence, evidenced by AP activity in order to control roll in the preceding seconds, caused upon its disconnection a departure of the plane in roll to the right, to around 8º.
It was presumed by most posters that this was the case but I like to see any loose ends closed, so this is my 0,02€ contribution until the official translation is given.

BOAC 31st July 2011 18:39


Originally Posted by CJ
Re 'p114', be careful..

- thanks for the warning, but now I know where it is I'll find it.

Re: This 'neutral' position for the SS (#1128)- is it not spring centred?

If that strange pic by 'grity' represents the Right SS, is 'below the line' nose up?

bearfoil 31st July 2011 18:39

Would an entry into a robust updraft cause the reduction in IAS? Would it cause the a/p to lower the nose to hold altitude? Was the a/p handling Roll excursions that were rapid enough to challenge its remaining performance?

Loss of THS response with repeated ND inputs is apparent on the traces. It remains full UP. the elevators show PF commanding ND.

Is anyone interested in looking closely at the 30 seconds prior/post a/p loss?

airtren: Would those lateral excursions of the ss possibily be related to the Human body's reaction to changes in posture due ROLL? Might they have been reactions to, rather than attempts to control, ROLL? PF: Loose restraints?

CONFiture: Are you aware of "missing traces" on other investigations by BEA re: Airbus? Because, at some point, after repetition, malicious becomes insulting.......

Ian W 31st July 2011 19:02

Human Factors Nightmare
 
Lonewolf_50

Ian, please don't hate me for what follows:

First note: if the two pilots were both aware of them being in condition UAS, what is the likelihood that they were skeptical of stall warning, knowing that airspeed is a component of stall AoA calculations? That might explain in part the apparent "ignore" of the stall warning.
But I think that you are correct.
The first reaction to everything falling apart is disbelief that it is happening. So being sceptical of the stall warning is a 'normal' reaction. Like many other things when flying you have to believe the instruments - and - in this case when that was tried the normal instruments in the scan were either obviously invalid or flagged as in error. So it can't be true.

Then the PF appears to have followed 'normal law' control procedures when the aircraft was in alternate - and he had accepted that. But under pressure one reverts to ingrained behaviors. So his 'learned' response was inappropriate for the aircraft state. The only way to prevent this happening is continual training in reversions to manual control and upsets at cruise level. How many line pilots here have that? How many can say that they have more than a few minutes actual manual piloting in alternate law at cruise level?
So when everything goes pear shaped - the crew are dropped into a situation that they have NO consistent experience of even in straight and level flight - but here they are in an upset that possibly gave one chance at recovery.


Second note:

From the latest release, the aircraft went into a condition of unreliable airspeed. What leaped out at BEA was that (if I read this rightly) the crew didn't progress to the unreliable airspeed checklist/procedure as was standard practice at the time. (If I misunderstand that, my apologies).

The information released shows me a PNF who had to focus on flying problems rather abruptly. His requirement to assist (rather than take over from??) the PF, to include the switch to (F/O 3 on the ATT select?? takata's illustration informs this) indicates to me that he felt that the PF was having difficulty with his PFD. Given the number of things going wrong on displays, and the PF being unclear on what he was seeing (from PNF perspective) giving the PF a better inertial unit to run his would be a helpful copilot (role) assisting PF. (If this guess is off, apologies).

In the meantime, hand flying at altitude with UAS in Alt 2: is this trained for?

If not, the PF was playing catch up.
This raises another issue that I have not seem mentioned much here. A 'constituted crew' where the Captain and FOs have flown together for some time and know each other and how they work will almost ALWAYS be better in an emergency than a random selection by roster. It may suit the bean-counters to have freedom to vary crew composition but it fails to engender team spirit. More importantly, when you have flown with someone for sometime you can both react and work-together almost intuitively. Someone should really quantify this teamwork effect in monetary terms as the accountants do not understand anything else.



A human factors question arises that may be answered by AF SOPs or habits, or it may not have an answer.

With what appears to be the senior pilot between the two recognizing a pilot who was fighting the aircraft a bit, or chasing it, his initial "talk him back into the scan/situation" is what most of us would do as good copilots ( in terms of our role at the time.)

At what point should/would it have been "I have the controls" when the PF kept chasing the attitude and the PNF kept having to prompt him to go in a different direction? (Aside: Isn't that the question every Captain must have a clear answer to before takeoff, or an instinct for, in terms of his threshold of "that's enough, I have controls" when his copilot is flying?) If the PNF made a number of inputs on the SS but didn't take controls, I know a few CRM people who'd be aghast, as the preference is that one pilot is on controls, the other isn't. (We could probably spend all day debating the intricacies of what's behind that.) WIth a SS, his inputs won't be felt by the PF, so the "summing" function may have less than the desired effect, as opposed to conventional controls where the PF would have felt what PNF was doing. <== Is this a shortcoming of SS, or an advantage? I can see it both ways. (Anyone whose instructor "rode the controls" while you were learning probably sees the issue here).
This dual attempt at controlling the aircraft is probably again a symptom of not having a constituted crew who all know each other well, rather than an administrative 'pecking order' or 'authority gradient' in the cockpit.

The problem of sidesticks and the visibility of what a pilot is doing both for the PNF and perhaps for the pilot himself. is a subject of debate among cockpit designers and pilots. Personally, I would think that for single seat aircraft and for 'flying the computer' a sidestick is probably good. For instances where a dual crew have to fly an aircraft manually (even if through some computer assistance) then the larger central yoke or joystick rapidly shows others what the PF is doing without the need for verbal or instrument clues that may not be easily available due to noise or vibration.


There are a HUGE number of human factors issues that will need to be investigated
  • Multiple Alarms on multiple failures causing cognitive overload
  • (In)Consistency of alarms (the stall warning) poor alarms reinforcing disbelief in instruments
  • Belief in alarms - the crews MUST know which alarms to ALWAYS believe and the system needs to ensure that there are NO false alarms
  • Display of reliable data/information during failures - it is sometimes better to have NO data than BAD data
  • Manual flying of a squirelly aircraft at cruise in bad weather in alternate law (is it possible at all without constant practice?) with limited instrument information. The crew did not have this training. (Does ANY crew?)
  • CRM and crew performance in upsets with constituted crews compared to random selections of front crews.

I am sure that there are more but this crew had EVERY one of those issues and probably 30 seconds at the beginning of the incident to get everything right or it would be too late. It proved too difficult for this crew to manage.

Is everyone sure that the crew they are next flying with would do any better in similar circumstance?

bearfoil 31st July 2011 19:08

Ian W?

SS v Yoke? (at the very end)


CAPTAIN: "PULL UP"

PF: "But I have been pulling for quite awhile"........

something like that?

RetiredF4 31st July 2011 19:15


Originally Posted by grity
the stick move of first 10 sec. after AP disconect 2:10:07 --- 2:10:18
the moves are more or less horizontal so I think he did not realise that he pulled, just fight with the rolling ship....left right left right left right.... realising that he had no longer correct speed at this time
Graph by grity


Initial grip to the SS was with the intention to counter the roll to the right. Thereby he overcontrolled or he chased the roll like in an PIO. During each reversal from left to right or vv PF induced a pitch change as well.

The initial grip had also a big NU input, which brought the plane of the later left / right movements considerably in the NU region, with only two considerable ND inputs but only enough to reach the neutral SS pitch position.

The assumption, that those NU inputs where associated with the aim to climb to a higher FL is IMHO obsolete (i didn´t believe in it anyway). PF might have intended to counter a sinking tendency as described by hazelnuts39, but i meanwhile doubt that.

The whole mess might as well have started with
- not being prepared for the situation
- being surprised by the dropout of AP + ATHR,
- PF gripping SS in a hastily and unsuitable mannor
- and thereby implementing unwanted and anneccessary steering inputs
- chasing the roll and missing the pitch (PNF might have noticed it)
- and loosing instrument cross check and SA all together
- and PNF on the LH seat not seeing the need to take over
- or not willing due to expierience in LH seat LH SS
- stall warning triggered the TOGA initiation in PF´s intinctive reaction
- and pitch control stayed as bad as before.

Was the seat position not suitable for the correct operation of SS?
Training issues had been mentioned month before already.

Unfortunately the graphs in the report are not good quality, i hope they show up some time in a higher resolution. There i a lot of info in them, and we will have lots of discussions about them.

In Phase 3, there are a few points where vertical speed goes close to zero, in one time at 02:14:15 (page 113 of the report) and also some 17 sec. before that it even shows positive climb.
Other times descent rate is more than 15.000 fpm.

Do we know, that those values are valid indications or are those values wrong?

It will be much enlighting to understand the behaviour of the crew in phase 3, because most probably their reactions based on things they saw. If those above mentioned VV values are correct, then they saw a drastic increase of descent rate when pitching down and a reduction of descent rate when pitching up with TOGA, with the expectation to get the ship flying again. We know that they had been stalled completely and that this increase in descent rate was a necessary tradeoff to achieve recovery, they probably didn´t.

DozyWannabe 31st July 2011 19:25


Originally Posted by CONF iture (Post 6610013)
THS trace is absent from page 31 and 32 graphics ... Why is that ?
ELEVATORS traces are also absent from those graphics ... Why is that ?

Because that part of the document is dealing with control responses to instrument displays as opposed to flight surface responses to commands, it would appear.

I'm therefore presuming it can be inferred from the statement that the aircraft performed as designed that the control surfaces responded to the commands given in the correct manner, for which you'd need to get your Airbus manuals out to correlate. Remember that this is an interim rather than a final report, and that hopefully the FDR traces you would like to see will be included in that document.

Ian W 31st July 2011 19:36

Operations Attitude a Causal Factor
 
vanHorck


Whilst you are essentially correct, you are at risk of being side-lined as an old-school pilot who refuses to see the advantages of modern technology....

To further enhance your argument: There are now automatic messages for pilots exceeding the narrowest of tolerances during hand flying, resulting in gentle phone calls from ops to the PF and/or the captain urging them at the very lest caution if not nudging them to use the automation rather than flying by hand. This clearly results in less hand flying than would otherwise be the case.
If anyone from Ops has made such a call then they should consider themselves a causal factor in this type of incident.

If they are so insistent that automation should always be used then perhaps the airlines should order fully automated aircraft. Then they can dispense with the expensive instrument monitors that they appear to want in the cockpit.

wozzo 31st July 2011 19:57

Longitudinal sidestick deflection (left/right), elevators, THS 2:09:00 - 2:14:30 (page 114).

http://img846.imageshack.us/img846/4897/screen01v.png

vanHorck 31st July 2011 20:02

Old Carthusian,

Let's not fight, read my last sentence.

Many lives have been saved through automation so I am all for it and a bus fan as well, but I dislike the (in my view insufficient hand-fly) training and I dislike even more the reluctance of (some) carriers to allow their pilots to hand fly both in the cruise as well as in the approach in varying circumstances.

Ian W

It's easily checked.... Ask the FO's in your fleet what percentage of captains allows them to hand fly in anything but the smoothest CAVOK weather (better even is a captain who asks his FO to hand fly), although I suspect it varies from airline to airline
(and I am certainly not implying AF have such a policy as I don't know)

bearfoil 31st July 2011 20:06

What's that smell?

Evidently OZONE. Noted by the crew, one is allowed to associate OZONE with WRG.....? That would explain the dire need to recover the avionics bay.

Can anyone devise a way to recover an a/c via Inertial Cues? Those boys from the Segway scooter should give it a go.

ChristiaanJ 31st July 2011 20:22


Originally Posted by bearfoil (Post 6610236)
What's that smell?
Evidently OZONE. Noted by the crew, one is allowed to associate OZONE with WRG.....?

You can associate anything with anything to demonstrate your ignorance.
Real avionics faults stink, but not of ozone.....
Since ther was a mention of St.Elmo's fire, that sounds as a more plausible explanation.....

T56 31st July 2011 20:29

Going back to link 959 and subsequent discussions:


Now, I understand also why the BEA would like to have the whole scene with all pannels filmed as many things said all along are related to instruments and very hard to guess what it was exactly.

The desire to capture cockpit video has been around for a long time. Now that we have glass cockpits, the ability to capture these now exists as well. One point missed in discussing all of this is that it does not need to be captured in "real time," which would in fact require large amounts of memory. If there were two image streams, one of the cockpit, and one composite of all of the glass displays (direct content), these could be captured with quite high resolution, but only at a rate of one capture per second. Nothing will change so rapidly that 1PPS will miss much of significance, and with a modest (in today's terms) amount of memory, one or two hours (or perhaps even an entire flight) could be captured for future reference if needed. The technology now exists. It should be done.

Thoughts.

bearfoil 31st July 2011 20:38

Citing a "more plausible" explanation than another somehow gives one the right to be insulting?

Electric motors produce OZONE, as does welding, Heating, Lightning, etc.

Sparking of any kind produces OZONE. Dismissing causes other than Saint Elmo's Fire strikes me as more consistent with, erm.....ignorance.

Can you please refrain from personal insult?

DozyWannabe 31st July 2011 20:43

Bear, I don't think CJ was trying to be insulting, but I can understand his frustration. Hanging on to every last thing you can trying to prove a hardware/software fault is one thing, but spamming two threads with the same post smacks of desperation.

vanHorck 31st July 2011 20:46

"...demonstrate your ignorance....."
 
What is it with this thread?

The whole series on the search for the truth about AF447 was one of the highest standing ones EVER with magnificent contributions from many mm43 just to name one.

So please let's have respect, and continue the good work with debate not insults.

I am sure I speak on behalf of many.

bearfoil 31st July 2011 20:50

I tried to accommodate the different fora with a question I thought more consistent with the foundation.

I am not desperate to prove anything. On the contrary, I am trying to unstick some narrow thinking that seems to be herding itself into the corral being built by partisans.

The BOEING 787 recently had a serious inflight electrical Malfunction/Fire.
The a/c was nearly lost.

Do you know what those on board were breathing? You talk of frustration? Tedium is listening to the same old suspects gather around the 'B'anner and sing the 'A'nthem.

take care friend

KBPsen 31st July 2011 20:53


Originally Posted by vanHorck
The whole series on the search for the truth about AF447 was one of the highest standing ones EVER

Sure, if you ignore the 90% of it that wasn't.

ChristiaanJ 31st July 2011 20:54


Originally Posted by bearfoil (Post 6610307)
Can you please refrain from personal insult?

By all means, on condition you refrain from polluting what is supposed to be a serious discussion about a real aircraft accident with fatuous nonsense and 'theories' without any factual and argued base.

bearfoil 31st July 2011 20:59

Christiaan

You are not moderator, and have no business 'judging' the relative 'purity' of anyone's input.

You have control issues, my friend. 'I' is for ignore.......

DozyWannabe 31st July 2011 21:01


Originally Posted by bearfoil (Post 6610326)
The BOEING 787 recently had a serious inflight electrical Malfunction/Fire.

So if you can explain to me what the correlation between an early production B787 on flight tests experiencing a fire in the electronics bay that was clearly visible and a production A330 that suffered a crash due to excursion from controlled flight following a UAS that has shown no evidence whatsoever of in-flight fire actually *is*, then I'm sure we'd see the relevance.

PS. CJ is a former Concorde engineer, so I'd think *very* carefully before tangling with him.

[EDIT : Misunderstood KBPsen's post - my apologies, sir.]

ChristiaanJ 31st July 2011 21:15

Thanks, DW !

Oh, and, bearfoil, if it wasn't for your pollution showing up in other peoples posts, I'd have pushed the "I" button long ago.

bearfoil 31st July 2011 21:24

CJ

Now it's alliances and feudal warfare?

Again, it is not for you to 'judge'. How about principles, rather than personalities?

You are indeed a valued resource here, and my goal is not to annoy.

Doze, B787 has neglected a serious flaw in their certification program, and no one notices. Airbus clearly has ignored some critical flaws in their product's performance relative to operator proficiency.

That's called an opinion, and is neither desperate, not personal.

gpc62 31st July 2011 21:27

unofficial CVR transcript translation - plus VS
 
Based on Lemurian's post #958, in turn based on spagiola's #940:

I've added the synthetic voice (VS) announcements and stall warnings, from pages 91-104 of the report in French.

I wanted to see where the stall warnings occurred in relation to the pilots' conversation, but it adds some other info as well -- eg, warnings about dual inputs toward the end, and the final "pull up"s.

And there's a puzzling (to me anyway) VS announcement at 2 h 12 min 17: « Priority right »
Just before that, the column of notes about FDR parameters has:

2 h 12 min 16
Le pilote en place OPL prend la priorité.
The pilot in place OPL takes precedence.

According to the key on page 89, "OPL" is the PF:
Copilote en place droite (PF) pilotant avec le manche OPL

Was the "PF" (sitting in place OPL) not actually the one with "la priorité" up until that moment??

Anyway, on with the unofficial transcript translation:

=====

gpc62: Added synthetic voice (VS) announcements. A few other minor additions/trivial corrections.

Lemurian: To spagiola
I took the liberty to proof-read your very good translation and this is how it is :

spagiola:
I'm a native French speaker and have a PPL, but have no further relevant qualifications, so caveat emptor.

=====

2 h 10 min 05
Cavalry charge (Alarme de déconnexion du pilote automatique)
Cavalry charge (Autopilot disconnect alarm)

2 h 10 min 06
PF: J’ai les commandes
I have control

2 h 10 min 09
PF: Ignition start
Ignition start

02 h 10 min 10.4 :
VS : « Stall, stall » (sans cricket)
VS: "Stall, stall" (without cricket)

2 h 10 min 11
PNF: Qu’est ce que c’est que ça ?
What's that ?

2 h 10 min 13
VS : « Stall, S »
VS: "Stall, S"

2 h 10 min 14
PF: On n’a pas une bonne… On n’a pas une bonne annonce de…
We don't have a good... we don't have a good indication of ...

2 h 10 min 17
PNF: On a perdu les les les vitesses alors… engine thrust A T H R engine lever thrust
We've lost the the the speeds so ... engine thrust A T H R (off) engine lever thrust

2 h 10 min 18
PF: … de vitesse
... of speed

2 h 10 min 22
PNF: Alternate law protections
Alternate law protections

2 h 10 min 24
PNF: Attends on est en train de perdre…
Wait we're losing...

2 h 10 min 25
PNF: Wing anti-ice
Wing anti-ice

2 h 10 min 27 to 2 h 10 min 31
PNF: Fais attention à ta vitesse Fais attention à ta vitesse
Watch your speed Watch your speed

PF: Okay, okay okay je redescends
ok ok ok I'm going back down

PNF: Tu stabilises
stabilize (“stay there”)

PF: Ouais
Yeah

PNF: Tu redescends
You're going back down

2 h 10 min 33
PNF: Selon les trois tu montes donc tu redescends
According to the three you're going up, so you go back down (meaning the three vertical speed indicators... )

2 h 10 min 35
PF: D’accord
Agreed

2 h 10 min 36
PNF: T’es à ... Redescends
You're at ... go back down !

PF: C’est parti on (re)descend
On our way we're going (back) down

2 h 10 min 39 to 2 h 10 min 46
PNF: Je te mets en en A T T
I'm putting you in in A T T

2 h 10 min 42
PF: On est en ouais on est en climb
We're in yeah we're in climb

2 h 10 min 49
PNF: (…) il est où euh ?
Uh, where is he?

2 h 10 min 51
VS : « Stall, stall » + cricket en continu
Stall alarm starts [continues until 2 h 11 min 45]

2 h 10 min 56
PF: (TOGA)
(TOGA)

2 h 11
PNF: Surtout essaie de toucher le moins possible les commandes en en latéral hein
Above all, try to touch the controls as little as possible in in lateral, hey ?!

2 h 11 min 03
PF: Je suis en TOGA hein ?
I'm in TOGA, no ?

2 h 11 min 06
PNF: (…) il vient ou pas
Is he coming or not ?

2 h 11 min 21
PF: On a pourtant les moteurs qu’est-ce qui se passe (…) ?
We've got the engines yet (nothing is happening...),. what's going on (...)?

2 h 11 min 32
PF: (…) je n’ai plus le contrôle de l’avion là J’ai plus du tout le contrôle de l’avion
I no longer have control of the plane; I no longer have any control at all of the plane

2 h 11 min 38
PNF: Commande à gauche
Controls to the left

2 h 11 min 41
PF: J’ai l’impression (qu’on a de) la vitesse
I have the impression (that we have) some speed

2 h 11 min 43
[Bruit d’ouverture de la porte du cockpit]
[Sound of the cockpit door opening]

CAP: Eh qu’est-ce que vous (faites) ?
Hey what are you doing?

PNF: Qu’est-ce qui se passe ? Je ne sais pas je sais pas ce qui se passe
What's happening? I don't know I don't know what's happening

2 h 11 min 45
Fin de l’alarme « Stall, stall » + cricket
Stall alarm stops

2 h 11 min 52
CAP: Alors tiens prends prends ça
So here take take that

2 h 11 min 53
VS : « Stall, stall » + cricket incomplet
VS: "Stall, stall" + cricket, incomplete

2 h 11 min 55
VS : « Stall, stall » + cricket incomplet
VS: "Stall, stall" + cricket, incomplete

2 h 11 min 58
PF: J’ai un problème c’est que j’ai plus de vario là
I have a problem it's that I no longer have vertical speed
CAP: D’accord
OK

PF: J’ai plus aucune indication
I no longer have any indication

2 h 12 min 04 to 2 h 12 min 07
PF: J’ai l’impression qu’on a une vitesse de fou non qu’est-ce que vous en pensez ?
I have the impression that we have some crazy speed, don’t we ?.. what do you think ?


2 h 12 min 07
PNF: Non surtout ne ne (les) sors pas
No, in any case, don't don't extend them

VS : « Stall, stall »

2 h 12 min 10
VS : « Stall, stall » + cricket incomplet

2 h 12 min 13
PNF: Qu’est-ce que tu en penses qu’est-ce que tu en penses, qu’est-ce qu’il faut faire ?
What do you think ?what do you think ? what do we have to do?

2 h 12 min 15 to 2 h 12 min 19
CAP: Là je sais pas là ça descend
I don't know we're going down


2 h 12 min 17
VS : « Priority right »

2 h 12 min 19 to 2 h 12 min 45
PF: Là c’est bon là on serait revenu les ailes à plat, non il veut (pas)
there ! that's good ! we'd be back to wings level, no he (doesn't) wan't to

CAP: Les ailes à plat ... l’horizon l’horizon de secours
Wings level ... the horizon the backup horizon

PNF: L’horizon
The horizon

2 h 12 min 26
PNF: La vitesse ?
The speed?

2 h 12 min 27
PNF: Tu montes ...
You're going up ...

VS : « Stall, stall »

PNF: Tu descends descends descends descends
go down go down go down go down

2 h 12 min 30
PF: Je suis en train de descendre là ?
Am I going down?

PNF: Descend !
Go down

2 h 12 min 32
CAP: Non tu montes là
No you're going up, now

2 h 12 min 33
PF: Là je monte okay alors on descend
There I'm going up ok so let's go down

2 h 12 min 34
VS : « Stall, stall » + cricket incomplet

2 h 12 min 39
PF: Okay on est en TOGA
ok, we're in TOGA

2 h 12 min 40
VS : « Stall, stall » + cricket en continu
Stall alarm starts [continues until 2 h 12 min 46]

2 h 12 min 42
PF: En alti on a quoi là ?
In alti[tude] we're at what, here?

2 h 12 min 44
CAP: (…) C’est pas possible
It's not possible

2 h 12 min 45
PF: En alti on a quoi ?
In alti[tude] we're at what ?

[*** during the following 19 seconds of speech, the stall alarm stops for 3 seconds, and then restarts for another 8 seconds. The transcript does not indicate the exact times for the pilots' speech, or where these stops and starts occur in relation to the speech: ***]

2 h 12 min 46
Fin de l’alarme « Stall, stall » + cricket
Stall alarm stops

2 h 12 min 49
VS : « Stall, stall » + cricket en continu
Stall alarm starts

2 h 12 min 57
Fin de l’alarme « Stall, stall » + cricket
Stall alarm stops

[*** now here's the pilots' speech for that time interval: ***]

2 h 12 min 45 to 2 h 13 min 04
PNF: Comment ça en altitude ?
What do you mean in altitude?

PF: Ouais ouais ouais j’descends là non ?
yeah yeah yeah i'm going down now, no?

PNF: Là tu descends oui
You're going down now, yes

CAP: Hé tu ... tu es en… Mets mets les ailes horizontales
hey you ... you're in ... put put the wings level

PNF: Mets les ailes horizontales
Put the wings level

C’est ce que je cherche à faire
That's what I'm trying to do

CAP: Mets les ailes horizontales
Put the wings level

2 h 12 min 59
PF: Je suis à fond à… avec du gauchissement
I'm at the limit of the stick... to the left

CAP: Le palonnier
Rudder pedals

2 h 13 min 23 :
VS : « Dual input »

2 h 13 min 25
PF: Qu’est-ce qu’y… comment ça se fait qu’on continue à descendre à fond là?
What is... how come we're continuing to descend so fast?

2 h 13 min 28
PNF: Essaye de trouver ce que tu peux faire avec tes commandes là-haut Les primaires et cetera
Try to see what you can do with your controls up there. The primaries etc

2 h 13 min 32
PF: au niveau cent
At level 100

2 h 13 min 36
PF: Neuf mille pieds
9000 feet

2 h 13 min 38
CAP: Doucement avec le palonnier là
Easy with the rudder

2 h 13 min 39
PNF: Remonte remonte remonte remonte
Climb climb climb climb (literally, "remonte" is "climb back up")

[*** another sequence where the transcript does not splice the VS and the pilots' speech together: ***]

2 h 13 min 41 :
VS : « Dual input »

2 h 13 min 43 :
VS : « Dual input »

2 h 13 min 45 :
VS : « Dual input »

2 h 13 min 47 :
VS : « Dual input »

2 h 13 min 40
PF: Mais je suis à fond à cabrer depuis tout à l’heure
But I've been pulling to the back stop for a good while

CAP: Non non non ne remonte pas
No no no don't climb back up

PNF: Alors descend
Go down, then

2 h 13 min 45
PNF: Alors donne-moi les commandes à moi les commandes
So give the me controls. I have control

PF: Vas-y tu as les commandes on est en TOGA toujours hein
Go on, you have control. We're still in TOGA, right ?

2 h 13 min 55
VS : « Stall, stall » + cricket en continu
Stall alarm starts

2 h 14 min 03
Fin de l’alarme « Stall, stall » + cricket
Stall alarm stops

2 h 14 min 05
CAP: Attention tu cabres là
Watch it, you're pitching up

PNF: Je cabre ?
I'm pitching up?

PF: Ben il faudrait on est à quatre mille pieds
Well, we should, we're at 4000 feet

2 h 14 min 17
VS : « Sink rate »
VS : « Pull up » (3x)

2 h 14 min 18
CAP: Allez tire
Go on, pull

PF: Allez on tire on tire on tire on tire
Go on, we're pulling we're pulling we're pulling we're pulling !

2 h 14 min 21 to end
VS : « Pull up » (4x)

2 h 14 min 26 to end
CAP: (Dix) degrés d’assiette
(Ten) degrees of trim

2 h 14 min 28.4
[Fin des enregistrements]
[End of data]

=====

DozyWannabe 31st July 2011 21:41


Originally Posted by bearfoil (Post 6610396)
Now it's alliances and feudal warfare?

May I answer? I assure you it's nothing of the sort, but this is the most recent of many times where you've said you were going to go away, have a break and regroup only to come bouncing back on within 24 hours with a new "lead" to throw into the mix.



You are indeed a valued resource here, and my goal is not to annoy.
You might want to think about that then.


Doze, B787 has neglected a serious flaw in their certification program, and no one notices.
I'm sure Boeing are taking it *very* seriously, which is why the 787 program has been somewhat slower than anticipated since the incident.


Airbus clearly has ignored some critical flaws in their product's performance relative to operator proficiency.

That's called an opinion, and is neither desperate, not personal.
So let me get this straight, you're trying to say that *Airbus* is responsible for the airlines' policies on training and any deficiencies within?

A note to anyone who wants to bring up Ziegler and concierges again - that was a *very long time ago* - please don't! The "race to the bottom" is a corporate disease that affects many more industries than aviation, and automation (and Airbus's role in the advances made within) is a factor, not a culprit.


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