June 17, 2009
Posted: 1902 GMT

PARIS, France – I met up with affable Airbus flight test engineer Fernando Alonso a few minutes before our scheduled 15-minute interview in the cockpit of the first A380 to fly.

Jim Boulden takes to the flight deck.
Jim Boulden takes to the flight deck.

Alonso has worked on the development of nearly all the airplanes produced by the 40-year-old aerospace giant.

He proudly recalls that he was the engineer on the first A380 flight back in 2005. He also reminded me not to touch any buttons without asking first.

During our all too brief conversation he explained the benefits of fly-by-wire technology first introduced by Airbus in the 1980s and now used in all new planes.

When the pilot or auto pilot wants the plane to bank or descend or whatever, in the older planes he or she would actually manipulate the wings or tail through levers and pulleys.

Now the computer does all that by interpreting the actions of the pilot or auto pilot.

With the crash of Air France 447 on June 1 (an Airbus A330) still a mystery the possible actions of the pilot in response to any potential systems failures is a hot topic.

Alonso explained to me that fly-by-wire works by interpreting the data the computer receives on speed, weight, fuel consumption etc. So, the computer would then give back certain duties to the pilots if there were computer or systems failures.

I asked him what - as an engineer - his gut instincts are about what brought down the Air France plane.

He said not knowing was the worst part of this tragedy for an engineer as the industry can learn so much about safety and can make changes accordingly.

But he is confident lessons will be learnt from Flight 447.

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Stuart   June 17th, 2009 2312 GMT

Praise the Lord Guys,
I only hope and pray that this mishap is not given a so called name as 'PILOT ERROR'. We do understand that us Pilots, are well trained with hours of experience under different circumstances, keeping in mind there is more than one pilot in the flight deck, communicating with each other and knowing what they do. At the same time the Airlines always keep up with the Aviation safety requirements, especially being the country's Flag Carrier. Not forgetting the Airbus is very reliable Aircraft type in the Industry. These aircrafts go through extensive tests in all aspects before they are launched in the market..
These situations are very difficult for anybody to deal with but we have to accept the fact that as humans we are very limited. The least we can do is pray for the loved ones and their families, that situations like these can be avoided in future.
All the best in locating the BLACKBOX, and God Bless.

J. Zagar   June 18th, 2009 2047 GMT

Reportedly up to 25 computer generated system failure messages were transmitted from Flight 447 via satellite to Air France's computer system in Paris minutes before break up of the aircraft. Why are not the plane's location (latitude & longitude) similarly transmitted automatically say every 10 or 15 minutes during the normal course of flight operations? And if this can be done, why is all the important flight data at the bottom of the Atlantic in the so-called Black Box? Such telemetry data should be streamed from aircraft to land computer servers via satellite where it can easily and quickly be used to assist rescue and recovery and to aid in prevention of similar catastrophes.

Benjamin   June 19th, 2009 820 GMT

Pray for the families that God grants to them peace at this time. I trust and strongly believe that God had been their with all of the passengers and flight staff in their 'darkest hour'.
God Bless and may the Peace of God be a source of comfort to all of the families that have lost their loved ones.

Nick   June 19th, 2009 1200 GMT

To ZAGAR: You're right when you ask why the data is not transmitted to the ground. In the old days – the time from which the black-box system dates – that wasn't possible. Nowadays, with our modern communication technology, such a solution – or backup system if you want – most be feasible. Hopefully, the industry takes up this suggestion.

Ri Ho   June 19th, 2009 1318 GMT

So...how come God didn't intervene to keep this from happening???

SA   June 19th, 2009 1646 GMT

I agree that in this day and age the data should be transmitted to the servers on the ground. I cant imagine the costs are prohibitive.

Frank   June 19th, 2009 2231 GMT

GPS's provide speed as well. Why isn't the GPS speed constantly compared to the measured "mechanical" airspeed and sets alarms off whenever there's a major mismatch? Not that I think the pitot's were 447's problem.

Sharon   June 20th, 2009 1933 GMT

My comment may or may not help. Considering the weather at the time of the crash, I will often wonder if weather input could of delayed the flight, or flying east or west of the grid line. Weather reports often advise of "lightening in the area", thus the delay of the flight, to avoid damage of the electrical system on the plane, I believe that once the electrical system failed all other systems failed. Thus would explain the 23 other error messages. I also think the pilot may have tried to turn the plane around putting the crash site closer to Brazil than we realize. Stats show the plane was 3 hours North, then water current pushing plane and debris South. I still hope the "black box" can be found so we will have closesure, so we can know not guess this happended, and then this. ect. Prayers to all affected by this tragedy, you won't be forgotten.

Steve Spears   June 22nd, 2009 652 GMT

No one, media included is remembering the BOAC (British Overseas Air) 707 that was shredded to pieces on the downwind side of Mt Fuji, in Japan, in the 60's. A passenger had an 8 MM movie camera running and the run button was latched down (as they could be). Japanese television ran the film, as the camera tumbled down. It showed pieces of the plane, seats, passengers and everything falling, in bright daylight. The BOAC pilot had decided to take the folks on a closeup look at Mt Fuji. The plane flew into a downwind cyclone cloud and the rest is history. I was living over there at the time and remember the whole event quite clearly.

When I was wrapping up my pilot training in 1977, I had an FAA weather training manual to study from. They put a sort of cartoon drawing graphic on the thunderstorm page, of an airplane with a face on it, and it's wings drawn way back and a real scared expression on the face. It was right in front of a giant thunderstorm cloud that had a big fist raised up, ready to to slam the plane down.

The bottom line. Whether a little Cessna, or a modern airliner, you just don't fly through thunderstorms. You don't fly by on the downwind side of mountain, where a cyclone cloud might be residing. The outcome can be pretty much predicted.

Brain Trust   June 22nd, 2009 2230 GMT

This plane by all standards must have blown apart. I spent years working with aircraft on Radar Control and for a plane of this size to just vanish from the scope, even it quit squawking, is not factual as this plane would make quit a "blip" on the scoop to an experienced Radar man. I remind you that enemy aircraft do not reveal their position by electronics by by a return signal which a good operator can see. This plane was totally wiped out suddenly and without warning. By the way, automatic transmission continue even if the plane is no more as the equipment is usually battery backed up for that reason. It takes pieces a long time to hit the water from 40,000 feet in the air. Question is was this a natural problem or a terrorist attack.....again!

Frank C   June 23rd, 2009 059 GMT

May the grace of God be with all the victims and their families. But for people like me that have to constantly fly overseas for a living this incident leaves even more questions about airplane safety and pilot decision making than ever before. The pictures of flight AA587 that crashed in NYC are still vivid in my head, another Airbus (A300) and if these airplanes are so safe and sophisticated, how come the flight computer allowed the pilots on this A300 to yank the rudder so hard that the tail was ripped apart?! Also, since pilots receive an in-route weather briefing before and after take off, why not choose a different route? Initial investigations clearly show flight AF447 was at the wrong place, at the wrong time, an area of heavy towering stoms. Personally I think having so much technology gives pilots a dose of false sense of security, and many times (some of them with me as a passenger) pilots decide to fly through weather that turns to be more serious than expected. Afterall, these machines are not flying tanks, and this humble passenger thinks that many storm systems should be avoided, and not flown thru. Deep inside my head, I hate to think that there may be some flaws with Airbus airplane designs under certain circumstances, the only two airplanes that I know in recent times have broken apart in mid-air. Safety first!

Manu Gomez   June 23rd, 2009 840 GMT

Just now i read in france24.com that the french navy have picked up signals from the black box of AF447....and send a sub to find it

Vincent u   June 23rd, 2009 929 GMT

Lets pray for the souls of people on that plane.

May the God Almighty the creator of all things,giver of wisdom and gift(talent on building the plane 'air france flight 447)lay his infinite mercy and joy to the souls of our brothers and sisters on that plane so they shall rest in peace each on their desire place of joy forever, Amen.

Note:there's nobody to blame,its just the way life keeps it,regards and well wishes to the families of the lost.

Vincent u.
Nigerian

Dave   June 24th, 2009 240 GMT

>>there’s nobody to blame

Yeah right – God wanted this plane to explode in mid air – come on.

As an engineer myself (mechanical and electrical) there is a very real reason why this plane apparently blew up in midair. Things just don't happen.

I think that Airbus had better go back over their tests as something failed or else this plane was attacked. The fact that they don't have a good idea where this black box is – is itself nuts. The plane was streaming telemetry to satellites – if they can't understand the data – they were sending the wrong info. Either way this is an indictment of Airbus. We can control robots remotely on Mars but we can't glean info from this planes last transmissions? Either Airbus or Air France is withholding info, or their planes are deficient. We should not be in this "we don't know what happened situation". I think I will stick to flying Boeing planes until they get this matter resolved.

And no – I have nothing to do with Boeing.

Dave

Roger W   June 24th, 2009 1615 GMT

My brother is an A320 pilot and he shared some very interesting facts.

The first is that at that altitude(36,000ft) and aircraft weight(only 3hrs fuel burned), the maximum airpeed and minimum airspeed become very close although still safe. Within the safe range no problems should occur but he has flown with a range of only 20mph between too fast and too slow before now.

The second is that if the autopilot sees an overspeed error, it raises the nose slightly to slow down. This reduces the safe flightspeed range (range gets smaller as you go higher) and often results in a stall warning. At this point the autopilot disengages and tells the pilots that it is flying too slow despite that fact that it just took action for flying too fast.

The third is that this is where the fly-by-wire problem starts as it automatically kicks in with full throttle in a state called "alpha-lock" which forces the pilot to go through a series of actions to unlock.

At this point, the aircraft is now on full throttle, pointing up, flying too high, too fast AND too slow all at the same time. One would expect that those conditions would not be desirable and may be triggered by false airspeed readings.

No evidence to suggest this occurred, but interesting facts from a pilot nonetheless.

Ken   June 24th, 2009 1820 GMT

This particular plane has a compete composite tail section. Given the large pcs of tails section found, and now a galley section, it would seem feasible that the entire tails section broke off of the aircraft -amongst other sections I am sure.

Given that there have been two debris feilds of bodies some 53 miles apart, it would support such a theory. At 550mph, the aircraft is traveling at about 10 miles per minute. At the time of break up – probably around 35000ft, numerous passengers would be surely sucked out the aircraft. as soon as the first large hole was created. Thus the first debris feild containing bodies. The second debris feild would have been created upon impact of the main section of the plane, several minutes later. The temperature would likely kill most passengers if the lack of oxygen didn't. The medical examinations shows no water in the lungs and injuries coincident with automobile crashes.

One writer mentions AA587... Flight AF487 would have experienced a much more dramatic force via windshear or cyclone turbulence in that environment. As we saw form the data from flight 587, loss of rudder in turbulent conditions can be unbelievably catastrophic. Lack of good speed measurement would simply contribute to the calamity.

Back to FLight AA587, the rudder control moved with only 26 lbs of force (foot control) and full rudder (computer limited attack angle) could be achieved at only 32lbs of force. That plane was an A300-600, and while changes were recomended by NTSB, none were ever made by the OEM. Flight AF447 has this same super-sensitive rudder control that might have contributed to this fatal event given the circumstances.

And most still wonder why Boeing continues to delay an almost all composite aircraft – 787. Winboxes, tail sections, wings, – all composite. Hmm. Lnding gear and engines are the only remaining large sections of metal.

-k

King   June 24th, 2009 2036 GMT

I think what happen is a mystery.remember its an ocean,where u have different kind of evil forces.i pray 4d souls of the victim.may there soul rest in perfect peace.Amen. Nigeria

Fabio   June 24th, 2009 2201 GMT

I'm from Brazil and there's a University in northeast with the help of a satelite of Eumetsat (european) they discovered that the time the plane was above the ocean in the storm cloud,

the temperature was -83°C, or -112°F

All Might is our Master

Steve   June 28th, 2009 1556 GMT

Would you religious people please put a sock in it. This was a failure of technology or terrorism, the later would have been by a religious extremists. Look at Iran, look at history, your close little minds and my God is better than yours attitudes are going to get all of us killed.

Bobbid j   June 30th, 2009 1232 GMT

I find it very odd that this modern world, with all of its great minds, can tell us all that happens in space, on the Moon, Mars and the far reaches of space, they can even tell you how old the Earth, Sun and other planets are, but they cannot explain what happen just the other day to the airplane, Air France. What a big bang that is.

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