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Technical Discussions
Rolf Diederichs
Director,
NDT.net, Germany, Joined Nov 1998, 609

Rolf Diederichs

Director,
NDT.net,
Germany,
Joined Nov 1998
609
00:34 May-06-1999
ICE Eschede Accident in ZDF-TV Today: Die Todesfahrt des ICE 884

A report will be broadcasted via ZDF-TV at May 6., 20:15 - 21:25.
More background of the broken wheel will be presented with a main focus
on the question "was it possible to prevent this accident",
according to a ZDF-TV preview [1][2].
Obviously it will not be very technical, but in respect to responsibility
and ethics of NDT, it's may be worthwhile to see it.

I was contacted a lot during the days after the accident in May 1998 from
a ZDF-TV journalist, however, so far no information had been broadcasted.
Only Focus-TV broadcasted our interview /news/1998/bahn_tv.htm.
In one of my former comments I suspected that ZDF-TV was manipulated by
the railway lobby [2].
It will be interesting to see today if now objective information will be shown.

In a coincidence of this topic some railway news are part of this month's issue,
e.g. "Continuing Railway Accidents Show the Importance of NDT".

Rolf Diederichs

References
[1] ZDF Press Preview
http://www.zdf.de/programm/tv_programm/07471/content.asp?pa1nr=B1E4A6E9943D5000

[2] Snap shoot of the wheel in breaking according to a ZDF animation
http://www.ndt.net/wshop/attach/zdfanim.jpg

[3] Summary of NDT response to the train accident
http://www.ndt.net/news/1998/bahn107.htm

[4] Continuing Railway Accidents Show the Importance of NDT
http://www.ndt.net/news/1999/rail05.htm

[5] Rolf Diederichs in an Interview with Focus-TV on PRO 7
http://www.ndt.net/news/1998/bahn_tv.htm


 
 Reply 
 
Rolf Diederichs
Director,
NDT.net, Germany, Joined Nov 1998, 609

Rolf Diederichs

Director,
NDT.net,
Germany,
Joined Nov 1998
609
03:05 May-11-1999
Re: ICE Eschede Accident in ZDF-TV Today: Die Todesfahrt des ICE 884
I would like to inform you about the essential findings the TV report mentioned.

- With a wrong construction of the traveling gear (axle) the problems started.
- Mono-block wheels have been replaced in an early stage because of to much vibrations.
- The new wheel with a ring and rubber attachment was a safety risk.
- The Deutsche Bahn knew about the safety risk (inner surface fatigue cracks),
however did not applied appropriated in-service inspections e.g. ultrasonic testing.

The report did NOT mentioned that the DB recognized the weakness of its in-service inspection,
however, developed a wrong concept (ultrasonic surface wave method).

Rolf Diederichs

----------
: A report will be broadcasted via ZDF-TV at May 6., 20:15 - 21:25.
: More background of the broken wheel will be presented with a main focus
: on the question "was it possible to prevent this accident",
: according to a ZDF-TV preview [1][2].
: Obviously it will not be very technical, but in respect to responsibility
: and ethics of NDT, it's may be worthwhile to see it.

: I was contacted a lot during the days after the accident in May 1998 from
: a ZDF-TV journalist, however, so far no information had been broadcasted.
: Only Focus-TV broadcasted our interview /news/1998/bahn_tv.htm.
: In one of my former comments I suspected that ZDF-TV was manipulated by
: the railway lobby [2].
: It will be interesting to see today if now objective information will be shown.

: In a coincidence of this topic some railway news are part of this month's issue,
: e.g. "Continuing Railway Accidents Show the Importance of NDT".

: Rolf Diederichs

: References
: [1] ZDF Press Preview
: http://www.zdf.de/programm/tv_programm/07471/content.asp?pa1nr=B1E4A6E9943D5000

: [2] Snap shoot of the wheel in breaking according to a ZDF animation
: http://www.ndt.net/wshop/attach/zdfanim.jpg

: [3] Summary of NDT response to the train accident
: http://www.ndt.net/news/1998/bahn107.htm

: [4] Continuing Railway Accidents Show the Importance of NDT
: http://www.ndt.net/news/1999/rail05.htm

: [5] Rolf Diederichs in an Interview with Focus-TV on PRO 7
: http://www.ndt.net/news/1998/bahn_tv.htm




 
 Reply 
 

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