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Post by kevin5345179 on Sept 28, 2019 2:12:36 GMT 1
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philidor
in service - 6 years
Posts: 8,950
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Post by philidor on Sept 28, 2019 12:38:08 GMT 1
Boeing cannot catch a break this year ! Hopefully this is just a manufacturing defect on a small number of planes, but it's far too early to tell ...
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mjoelnir
in service - 2 years
Posts: 4,089
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Post by mjoelnir on Sept 28, 2019 13:42:37 GMT 1
Boeing cannot catch a break this year ! Hopefully this is just a manufacturing defect on a small number of planes, but it's far too early to tell ... The cracking comes unexpected, if it would be connected to a certain know batch of frames, it would have been expected and especially checked for. I think they have to check quite a lot of frames, even to find out it to being only connected to a certain small batch. and if this should be wider problem on the NG, why should it not crop up on the MAX? |
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Post by kevin5345179 on Sept 28, 2019 19:50:00 GMT 1
Boeing cannot catch a break this year ! Hopefully this is just a manufacturing defect on a small number of planes, but it's far too early to tell ... The cracking comes unexpected, if it would be connected to a certain know batch of frames, it would have been expected and especially checked for. I think they have to check quite a lot of frames, even to find out it to being only connected to a certain small batch. and if this should be wider problem on the NG, why should it not crop up on the MAX? can't imaging MAX log 35k cycles if they can't fly  interesting that they pointed out it is not related to P-8 as well |
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mjoelnir
in service - 2 years
Posts: 4,089
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Post by mjoelnir on Sept 28, 2019 22:41:38 GMT 1
The cracking comes unexpected, if it would be connected to a certain know batch of frames, it would have been expected and especially checked for. I think they have to check quite a lot of frames, even to find out it to being only connected to a certain small batch. and if this should be wider problem on the NG, why should it not crop up on the MAX? can't imaging MAX log 35k cycles if they can't fly interesting that they pointed out it is not related to P-8 as well The only idea I get is, that it is a know problem with the pickle fork and that piece has been changed for the P8 and MAX. But why has it than not been reported before and why is than the lifetime still registered for the whole 90 k cycles? |
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Post by kevin5345179 on Sept 29, 2019 2:52:39 GMT 1
can't imaging MAX log 35k cycles if they can't fly interesting that they pointed out it is not related to P-8 as well The only idea I get is, that it is a know problem with the pickle fork and that piece has been changed for the P8 and MAX. But why has it than not been reported before and why is than the lifetime still registered for the whole 90 k cycles? problem happened on 767 before |
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Post by fanairbus on Sept 29, 2019 7:01:03 GMT 1
Is not a question now looming further into the consciousness of aviation authority minds now? i.e. ' Is Boeing fit any longer for purpose as an aircraft manufacturer?' The control of the technical quality via QC and QA seems to have gone out of the window - if that isn't an unfortunate expression. If this were an airline safety operation review, restrictions on flying to major block areas such as the EU / US etc. would be contemplated until solid proof of performance improvement. How far can a manufacturer depart from technical and quality expectations before intervention on behalf of passenger safety? What next? Boeing running out of small tools because most of their inventory is somewhere within delivered frames?  |
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mjoelnir
in service - 2 years
Posts: 4,089
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Post by mjoelnir on Sept 29, 2019 9:29:41 GMT 1
The only idea I get is, that it is a know problem with the pickle fork and that piece has been changed for the P8 and MAX. But why has it than not been reported before and why is than the lifetime still registered for the whole 90 k cycles? problem happened on 767 before Yes, that was and is in the news. But how does Boeing know, that the pickle fork issue will not hit the P8 or MAX and does only apply to a small number of NG, if this issue is completely new and surprising on the NG bird it was detected on? |
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philidor
in service - 6 years
Posts: 8,950
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Post by philidor on Sept 29, 2019 12:07:15 GMT 1
how does Boeing know, that the pickle fork issue will not hit the P8 or MAX and does only apply to a small number of NG, if this issue is completely new and surprising on the NG bird it was detected on? Whether or not there is a difference in design, no P8 (probably) or MAX (certainly) has logged a number of cycles that could trigger the issue. I don't think Boeing said the problem could not appear on these types in a distant future. |
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mjoelnir
in service - 2 years
Posts: 4,089
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Post by mjoelnir on Sept 29, 2019 12:41:46 GMT 1
how does Boeing know, that the pickle fork issue will not hit the P8 or MAX and does only apply to a small number of NG, if this issue is completely new and surprising on the NG bird it was detected on? Whether or not there is a difference in design, no P8 (probably) or MAX (certainly) has logged a number of cycles that could trigger the issue. I don't think Boeing said the problem could not appear on these types in a distant future. Boeing said the issue will not appear on the P8 or MAX, they did not talk about them being to young. It would imply, that the pickle fork was changed. And if the pickle fork was changed, the question would be why the pickle fork with a lifetime of 90 K cycles, was changed on a grandfathered design, if there was no problem. |
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