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One wonders how much the setbacks in Boeing's 787 program are a result
of the whistle-blowing former Boeing engineer's comments to the FAA citing shortcuts and unsound engineering decisions for the 787. Here's the link to the document: http://seattletimes.nwsource.com/ABP...2003889769.pdf ----------------- Boeing press Release ---------------------- The Boeing Company http://www.boeing.com/news/releases/index.html Boeing Reschedules Initial 787 Deliveries and First Flight * Financial impact not material to earnings * Earnings guidance unchanged for 2007 and 2008 CHICAGO, Oct. 10, 2007 -- The Boeing Company [NYSE:BA] today announced a six-month delay in its planned initial deliveries of the 787 Dreamliner due to continued challenges completing assembly of the first airplanes. Deliveries of the strong-selling Dreamliner are now slated to begin in late November or December 2008, versus an original target of May 2008. First flight is now anticipated around the end of first quarter 2008. The company said the financial impact of the delay would not be material to earnings and that its earnings guidance for 2007 and 2008 remained unchanged. "We are disappointed over the schedule changes that we are announcing today," said Boeing Chairman, President and Chief Executive Officer Jim McNerney. "Notwithstanding the challenges that we are experiencing in bringing forward this game-changing product, we remain confident in the design of the 787, and in the fundamental innovation and technologies that underpin it." Early last month, Boeing announced a delay in the planned first flight of the 787 citing ongoing challenges with out-of-sequence production work, including parts shortages, and remaining software and systems integration activities. The company also acknowledged increasing risk to the delivery schedule, indicating that the margin to accommodate unexpected issues had been eliminated. The newly revised schedule for first flight and first delivery addresses the production challenges and restores margin for the program to deal with issues that may be uncovered in final ground or flight testing. Boeing also said today that flight control software and systems integration activities are not pacing items in the revised schedule for first flight. "While we have made some progress over the past several weeks completing work on our early production airplanes and improving parts availability across the production system, the pace of that progress has not been sufficient to support our previous plans for first delivery or first flight," said Scott Carson, president and CEO of Boeing Commercial Airplanes. "We deeply regret the impact these delays will have on our customers, and we are committed to working with them to minimize any disruption to their plans. "The most important commitment we've made to our customers is to deliver an airplane that performs to their expectations over the long life of the program. These changes to our schedule will help ensure we do just that," Carson said. The company will hold a conference call to discuss the 787 schedule changes today at 12:30 p.m. Central Time, which will be accessible at the company's website http://phx.corporate-ir.net/phoenix....ails&c=85482&e ventID=1667937 . Boeing will provide its next quarterly financial performance update as planned on October 24. |
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On Oct 10, 9:01 pm, Larry Dighera wrote:
One wonders how much the setbacks in Boeing's 787 program are a result of the whistle-blowing former Boeing engineer's comments to the FAA citing shortcuts and unsound engineering decisions for the 787. Here's the link to the document:http://seattletimes.nwsource.com/ABP...2003889769.pdf Regardless of the alleged whistle blowing, program delays don't surprise me considering the complexity of 787. I hope we don't see a repeat of the A380 debacle. |
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On Thu, 11 Oct 2007 02:01:04 GMT, Larry Dighera wrote:
One wonders how much the setbacks in Boeing's 787 program are a result of the whistle-blowing former Boeing engineer's comments to the FAA citing shortcuts and unsound engineering decisions for the 787. There was skepticism in the Seattle press about Boeing meeting the 787 first-flight date far, far before the public comments by the former employee. With the first airplane so close to completion, why would Boeing delay its completion over this? The prototype *is* an experimental category aircraft, after all; it's not like it requires much more than cursory FAA approval. If the guy is right, the program's screwed, but the aerodynamics probably wouldn't change much. The company could get a lot of useful data by flying the prototype during any redesign effort. And if the guy is wrong, Boeing would take a huge loss in delaying the program needlessly. Ron Wanttaja |
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On Wed, 10 Oct 2007 23:00:18 -0700, Ron Wanttaja
wrote in : With the first airplane so close to completion, why would Boeing delay its completion over this? If design changes need to be implemented to meet FAA certification standards, it would be foolish to test an aircraft that doesn't employee them, IMO. I suppose the final rule will reveal just how much the former Boeing engineer's revelations changed the standards the design will be held to. |
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On Thu, 11 Oct 2007 09:36:02 GMT, Larry Dighera wrote:
On Wed, 10 Oct 2007 23:00:18 -0700, Ron Wanttaja wrote in : With the first airplane so close to completion, why would Boeing delay its completion over this? If design changes need to be implemented to meet FAA certification standards, it would be foolish to test an aircraft that doesn't employee them, IMO. Prototypes rarely match the production models; that's one reason why companies like Boeing retain them for company "hacks." The allegations have nothing to do with how the airplane's going to fly; any changes will be internal. Yet the test period does typically reveal the need for mechanical/aerodynamic changes. *If* there are delays triggered by the allegations, flight testing the prototype would allow *other* changes to be incorporated in parallel. I suppose the final rule will reveal just how much the former Boeing engineer's revelations changed the standards the design will be held to. I suspect you mean, "Final ruling," rather than "final rule." AFAIK, there's no change in FAA policy pending over the allegations. The controversy is over a difference in engineering opinion, rather than a revelation of hidden flaws. Ron Wanttaja |
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On Thu, 11 Oct 2007 07:19:04 -0700, Ron Wanttaja
wrote in : On Thu, 11 Oct 2007 09:36:02 GMT, Larry Dighera wrote: On Wed, 10 Oct 2007 23:00:18 -0700, Ron Wanttaja wrote in : With the first airplane so close to completion, why would Boeing delay its completion over this? If design changes need to be implemented to meet FAA certification standards, it would be foolish to test an aircraft that doesn't employee them, IMO. Prototypes rarely match the production models; That's understandable given the reasons for testing in the first place, and serves little disincentive for aiming for a prototype as close as possible to the final design goal as it is envisioned at the time of testing. that's one reason why companies like Boeing retain them for company "hacks." The allegations have nothing to do with how the airplane's going to fly; any changes will be internal. The response to the FAA Rules Docket cites concerns with the structural integrity of composite materials Boeing has specified for the Dreamliner, as I recall. Because of that, Boeing may choose to refine its engineering in that area. Yet the test period does typically reveal the need for mechanical/aerodynamic changes. *If* there are delays triggered by the allegations, flight testing the prototype would allow *other* changes to be incorporated in parallel. It's my understanding that flight testing isn't the only thing being delayed. I suppose the final rule will reveal just how much the former Boeing engineer's revelations changed the standards the design will be held to. I suspect you mean, "Final ruling," rather than "final rule." AFAIK, there's no change in FAA policy pending over the allegations. Until the final ruling is published, how would you know the effect on the FAA of 46-year former Boeing employee Weldon's seventeen page comment? The controversy is over a difference in engineering opinion, rather than a revelation of hidden flaws. There are a number of points raised in Weldon's comment: 1. The large number of failure modes for the relatively brittle composite structure used in the 787. 2. The difficulty in testing the composite structure used in the 787. 4. The FAA's apparent intent to not thoroughly test Boeing's prototype that represents a re-definition of jetliner design. 5. Boeing's corporate policy of intimidation of employees who raise ethical questions about design and testing issues. 6. The sensitivity to hot/wet and freeze/thaw conditions an through-thickness crack growth that represent fatigue-like failure modes thought to be nonexistent in composites. 7. Visually undetectable impact caused micro-cracking as might occur with hail damage. 8. The combustibility of composite materials reduces the evacuation time window. 9. The design decision not to continuously electrically bond the Faraday cage along the length of the joints of adjacent major structural segments which may result in composite damage due to arcing. 10. Lack of adequate testing of the system for nitrogen inerting the fuel vapor above the liquid level in fuel tanks. 11. The FAA's issuance of crash worthiness special conditions and inadequate testing requirements. 12. The smoke from burning carbon-epoxy composite structure of the type used in the 787 is so toxic that it has been banned from use in the interior of aluminum jetliners. 13. ... Ron Wanttaja |
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On Oct 10, 8:01 pm, Larry Dighera wrote:
One wonders how much the setbacks in Boeing's 787 program are a result of the whistle-blowing former Boeing engineer's comments to the FAA citing shortcuts and unsound engineering decisions for the 787. Here's the link to the document:http://seattletimes.nwsource.com/ABP...2003889769.pdf None... the whistle blower has nothing to do with it. The delays are all due to systems integration problems... Dean |
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On Oct 11, 2:23 pm, Larry Dighera wrote:
On Thu, 11 Oct 2007 12:43:43 -0700, wrote in . com: None... the whistle blower has nothing to do with it. The delays are all due to systems integration problems... What is your source for that information? Friends (former co-workers) who work on the 787 program at Boeing. I have known that this was coming for about a year now, so I wasn't at all surprised by the announcement. |
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