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rampil
Joined: 04 May 2007
Posts: 870
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 Posted: Wed Jul 18, 2007 1:45 pm Post subject: A request for adequate information from the PFA |
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At the appropriate time of course,
I would greatly appreciate the forebearance of the PFA folks in
providing a complete report on Williams accident. The current
"official" information leaves me wondering what the appropriate
response of Europa owners outside of the UK should be.
The observation that the tailplanes departed is sort of a chicken vs
egg issue. Did they depart from self-excited flutter induced failure,
or was there a mechanical defect (which has been suggested) or was
there perhaps an excessive g command doublet (cf Airbus).
Were the tailplanes recovered and examined? What was their forensic
exam result? We have not heard about whether the pip pins were
still in place or absent. Was the foam pulled through? These would
seem to be vital evidence for what happened.
What were the data from the radar track. I have heard speeds ranging
from 90 to 160 kts. I have also heard straight & level flight vs. probable
high g 180 turn prior to failure. I think these data make a difference.
The wings folded. That is supposed to be a > 13g event. was it the same
event that took the stabs, or is this a theorized contruction defect also?
Were there any contributory pathologic findings? (not a morbid request,
I am an FAA designated examiner)
If changes are needed to the airframe, I'd like to make the right ones.
Until then, I think I will sit back in my plane and await the information
I can act on. Hopefully, this means when I drop in to Oshkosh next
week, it will not be from greater than 500' AGL
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_________________
Ira N224XS |
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gcrowder2
Joined: 09 Jan 2006
Posts: 136
Location: Golden, Colorado USA
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| Posted: Wed Jul 18, 2007 2:03 pm Post subject: A request for adequate information from the PFA |
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In one high speed VNE dive some years ago, I accidently bumped the stick forward. I immediately began I very high speed PIO that could have gotten real ugly. Relax, relax, relax. One more oscillation I could easily see parts leaving the aircraft!
Glenn
| Quote: | Subject: A request for adequate information from the PFA
From: ira.rampil(at)gmail.com
Date: Wed, 18 Jul 2007 14:45:41 -0700
To: europa-list(at)matronics.com
--> Europa-List message posted by: "rampil" <ira.rampil(at)gmail.com>
At the appropriate time of course,
I would greatly appreciate the forebearance of the PFA folks in
providing a complete report on Williams accident. The current
"official" information leaves me wondering what the appropriate
response of Europa owners outside of the UK should be.
The observation that the tailplanes departed is sort of a chicken vs
egg issue. Did they depart from self-excited flutter induced failure,
or was there a mechanical defect (which has been suggested) or was
there perhaps an excessive g command doublet (cf Airbus).
Were the tailplanes recovered and examined? What was their forensic
exam result? We have not heard about whether the pip pins were
still in place or absent. Was the foam pulled through? These would
seem to be vital evidence for what happened.
What were the data from the radar track. I have heard speeds ranging
from 90 to 160 kts. I have also heard straight & level flight vs. probable
high g 180 turn prior to failure. I think these data make a difference.
The wings folded. That is supposed to be a > 13g event. was it the same
event that took the stabs, or is this a theorized contruction defect also?
Were there any contributory pathologic findings? (not a morbid request,
I am an FAA designated examiner)
If changes are needed to the airframe, I'd like to make the right ones.
Until then, I think I will sit back in my plane and await the information
I can act on. Hopefully, this means when I drop in to Oshkosh next
week, it will not be from greater than 500' AGL
--------
Ira N224XS
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=124655#124655
>=======================
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PC Magazine’s 2007 editors’ choice for best web mail—award-winning Windows Live Hotmail. Check it out! [quote][b]
| | - The Matronics Europa-List Email Forum - | | | Use the List Feature Navigator to browse the many List utilities available such as the Email Subscriptions page, Archive Search & Download, 7-Day Browse, Chat, FAQ, Photoshare, and much more:
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simon.miles(at)skynet.be
Guest
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| Posted: Wed Jul 18, 2007 10:21 pm Post subject: A request for adequate information from the PFA |
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Ira,
The accident is being investigated by the AAIB (Air Accidents
Investigation Branch) - it is not within the remit of the PFA to
investigate accidents. You can be assured that the investigation will be
very thorough and will include pathological findings. Their website is
http://www.aaib.dft.gov.uk.
Simon Miles
Builder #508
rampil wrote:
| Quote: |
At the appropriate time of course,
I would greatly appreciate the forebearance of the PFA folks in
providing a complete report on Williams accident. The current
"official" information leaves me wondering what the appropriate
response of Europa owners outside of the UK should be.
The observation that the tailplanes departed is sort of a chicken vs
egg issue. Did they depart from self-excited flutter induced failure,
or was there a mechanical defect (which has been suggested) or was
there perhaps an excessive g command doublet (cf Airbus).
Were the tailplanes recovered and examined? What was their forensic
exam result? We have not heard about whether the pip pins were
still in place or absent. Was the foam pulled through? These would
seem to be vital evidence for what happened.
What were the data from the radar track. I have heard speeds ranging
from 90 to 160 kts. I have also heard straight & level flight vs. probable
high g 180 turn prior to failure. I think these data make a difference.
The wings folded. That is supposed to be a > 13g event. was it the same
event that took the stabs, or is this a theorized contruction defect also?
Were there any contributory pathologic findings? (not a morbid request,
I am an FAA designated examiner)
If changes are needed to the airframe, I'd like to make the right ones.
Until then, I think I will sit back in my plane and await the information
I can act on. Hopefully, this means when I drop in to Oshkosh next
week, it will not be from greater than 500' AGL
--------
Ira N224XS
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=124655#124655
|
| | - The Matronics Europa-List Email Forum - | | | Use the List Feature Navigator to browse the many List utilities available such as the Email Subscriptions page, Archive Search & Download, 7-Day Browse, Chat, FAQ, Photoshare, and much more:
http://www.matronics.com/Navigator?Europa-List |
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