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The Cause for the A380 Delivery Slippage?? Could it be....

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The Cause for the A380 Delivery Slippage?? Could it be....

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Old 16th May 2005, 17:33
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The Cause for the A380 Delivery Slippage?? Could it be....

Wonder whether this delay is related to the Wall St Journal Article below? Whistleblower claims that his company just quietly slipped in some COTS program to run a critical part of the CPCS (Cabin PPressure Control System) without qualifying it under DO-178(B). Naughty naughty.... particularly as the software had some unresolved bugs that had produced undesired results in its bespoke ground-bound application. All to save a few millions..

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Airbus to postpone deliveries of A380 until second half of 2006, report says

Airlines say Airbus will delay deliveries of its A380 superjumbo jet until the second half of 2006, the Wall Street Journal reports. The
manufacturer previously expected to deliver the planes in the first half of the year. Airbus would not comment on the delays. Engineers say efforts to reduce the weight of the plane and technical issues are stalling the program. They added that the delays do not signal fundamental problems with the plane. [The Wall Street Journal]


Airbus Software Feud Lands in Court

Subcontractor’s Ex-Staffer Alleges Moves to Mislead On Product in Superjumbo

By DANIEL MICHAELS and MATTHEW KARNITSCHNIG

Staff Reporters of THE WALL STREET JOURNAL

April 28, 2005; Page B4

VIENNA --Armies of engineers write software for all kinds of transportation applications. So why not borrow some of it, make the necessary adjustments and use it on a multibillion dollar jetliner? The question is central to a court battle over software re-engineering and the complicated process of certifying its safety for aerospace use. And the case has implications for Airbus's massive new jet, the 555-seat A380, which took its successful maiden flight yesterday and is awaiting certification to go into service next year.

Aircraft designers make a point of worrying about the safety of software and circuits in jetliners, whose electronic systems have gotten increasingly complex and integrated in the past 20 years. The avionics industry and regulators have responded with strict rules for jetliner software and electronic equipment -- and mountains of paperwork are required to back it up. Thanks to that rigor, computer circuits have never been implicated in a major plane crash. Still, electronic glitches have led to crashes of jetfighters and spacecraft and there have been some close calls with commercial airliners.

On Feb. 8, a Virgin Atlantic Airways flight to London from Hong Kong with 293 passengers and 18 crew on board made an emergency landing in Amsterdam after bugs in the computerized fuel-management system of the Airbus A340-600 starved one engine of fuel and almost shut down a second. British investigators are still analyzing the "serious incident," but Airbus reprogrammed the system at their urging. Now, a former employee of a subcontractor to Airbus on its A380 super-jumbo jet alleges that company managers misled Airbus and authorities about shortcomings in the certification paperwork for a chip and software to be used on the plane. The former employee also claims the software -- which was adapted from earlier off-the-shelf products -- has flaws that could endanger passengers. The subcontractor, closely held TTTech Computertechnik AG of Vienna, denies the allegations of the former employee, Joseph Mangan. TTTech's chief executive, Stefan Poledna, says he fired the engineer in October for poor job performance and contends Mr. Mangan now wants revenge. TTTech has brought both a criminal and a civil suit against him for defamation and has taken legal steps to stop him from making claims about TTTech and its products, which Mr. Poledna said caused TTTech "considerable damage."

Attempts to settle out of court have failed. TTTech's suits against Mr. Mangan, a 40-year-old American, as well his own suit against the company, are playing out in Vienna district court. Mr. Mangan, a freelance aerospace and software specialist who worked for TTTech for six months, contends that certain potential problems in TTTech's products, if they arise, could ripple throughout the cabin-air system and cause passenger injuries or even a crash. Officials at both Airbus and the contractor that hired TTTech say they have studied the system and found no safety issues. They say even if issues arise, the equipment doesn't play a critical enough role in the A380 to endanger the plane. Airbus, which is owned by European Aeronautic Defence & Space Co. and Britain's BAE Systems PLC, adds that its suppliers will meet all certification requirements. A spokesman for the European Aviation Safety Agency, which is in the process of certifying the A380, said EASA "is aware of the case and has reacted accordingly."

After a preliminary hearing in December, the next hearing in the case is due in coming weeks. Mr. Mangan, who seeks compensation for wrongful dismissal, faces a hefty fine and up to six months in jail if he can't prove his charges. He concedes it will be hard. But so is proving the products are safe, he argues, due to the complexity of software certification. TTTech is supplying a microchip and software that handle data communication within the system that controls the air pressure inside the two-deck A380. TTTech was hired in July 2002 by Nord-Micro AG in Frankfurt, a subsidiary of U.S. conglomerate United Technologies Corp.'s Hamilton Sundstrand division, which is developing the A380's cabin-pressure control system. A pivotal issue in the case is that TTTech's system was developed using commercial off-the-shelf, or COTS, systems that were designed for other purposes, rather than custom aviation software developed from scratch. TTTech developed its COTS equipment in the 1990s mainly for cars and trains, and more recently adapted it for aviation.

While such COTS systems are rare in aerospace, they aren't unheard of. TTTech's system is now also being used in a military aviation application, which doesn't face the same rigors of certification as civil aviation. The U.S. Federal Aviation Administration has conducted several studies of safety and certification issues raised by COTS software in recent years. A group of specialists from the U.S., Europe and Canada in 2003 also studied the issues. Basically, they say that COTS systems should be subjected to the same testing and standards as other systems. The fact that some system may be in use doesn't mean it should be exempted from the same extensive proving as other aviation systems, except in some very rare circumstances. As a result, getting the necessary certification paperwork for COTS software usually requires some reverse-engineering. Such reverse-engineering -- which involves going through the software code line by line and justifying each part -- can be so complicated and time-consuming that adapting COTS electronics ends up costing as much as creating aviation systems from scratch.

Mr. Mangan alleges that TTTech managers knew last spring that their paperwork would be insufficient for the A380, but avoided alerting Airbus or regulators. He says that he revealed the problem to Airbus and EASA in late September and TTTech fired him after that. TTTech disputes Mr. Mangan's account. European regulators and other people familiar with the certification of TTTech's equipment supported some of Mr. Mangan's claims about documentation shortcomings. These people said TTTech and Nord-Micro initially took the position that some equipment required a low level of certification documentation because of its use in other transport applications. Regulators said documentation was insufficient and have asked the companies to meet higher certification standards. The companies are now preparing the documentation. Mr. Mangan says that doesn't address software flaws that he alleges exist. Mr. Poledna, TTTech's CEO, says the company identified and fixed a glitch, as happens during software development and review. Mr. Poledna says that TTTech's equipment is safe and that the company is on track to meet all certification requirements.

Last edited by UNCTUOUS; 17th May 2005 at 03:09.
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Old 16th May 2005, 20:13
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...probably not. In software in general, one of the advantages of a COTS solution is that it's already undergone extensive testing in real world conditions. By the sounds of it, the folks at TTTech developed the code themselves, and were selling it for other industries. If the regulators are going to require a code review and further documentation, that "paperwork" can be developed very quickly, albeit at some expense. I'm sorry, this is pretty much a non-issue with respect to A380 delivery time. The worst that happens here is TTTech and Sundstrand eat a bunch of cash and cough up the documentation/additional QA review. And at this stage of development, software QA can be scaled to rather large numbers; or at least it would appear.
So worst case, money changes hands. If I were looking for causes for delay, I'd be checking weight issues and the nightmare of a supply/manufacturing chain needed to produce an A380.
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Old 17th May 2005, 03:19
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Obviously doesn't pay to be a whistleblower in the new Europe either- you still end up dismissed, in court, paying out tens of thousands and being counter-sued, even though you are demonstrably correct in your contentions. Don't depend upon any justice in an Austrian Court either. They all pay homage to the almighty Airbus.

There is no latitude in DO-178(B) for any "proven by use in other non-aviation applications" contexts. TTTech and Nord Micro were just trying to make a fast buck by slipping one through. They also worked on the A340 and the Embraer ERJ-170 systems. They probably also did the software with the near fatal flaw in the A340-500/600 fuel system transfer.

You have to wonder what other shonks they've signed off on.
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Old 17th May 2005, 04:20
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The problems of SOUP are well known, but I doubt the system needs to be more than SIL1 or 2.
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Old 17th May 2005, 05:40
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Are the Austrian courts under indirect pressure from the German and French governments? With so many billions of Euros and the Airbus reputation depending on delivery dates, their ability to win battles in the Trans-Atlantik "Battle of the Subsidies" 'Schlachtfeld', there must be some future orders at stake, if potential customers get 'cold feet' about delivery dates .

Would Airbus, through the French or German 'Foreign Office', try to silence the "frechen, beschwerlichen Schuft" as soon as possible, by exerting sharp pressure on their smaller neighbor? Or do politics not work that way?

Last edited by Ignition Override; 17th May 2005 at 07:36.
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Old 17th May 2005, 08:59
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IO,
IŽd doubt it. IŽm very often in Austria and I think they are proud and strong enough to protect their court.

The only field, where "we" (the Germans) could "hit" them, would be tourism - until now, nobody tried to keep us from Austria...
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Old 18th May 2005, 23:37
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Dagger,
Quote:
TTTech and Nord Micro were just trying to make a fast buck by slipping one through.
Unquote
And, of course, you have proof for this.
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Old 19th May 2005, 02:27
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Are the Austrian courts under indirect pressure from the German and French governments?
Are you for real, I-O? Letting the preposterousness of your suggestion, I think (a) the Austrians are about done being told what to do by Germans for a few hundred years to come and (b) what pressure do you think the Frogs can apply?

I am not aware of significant Austrian input in Airbus Industrie or the 380 program so what would they possibly get out of it, even if we were to believe for a second the Austrian judiciary are subject to *any* external pressure.
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