The visitors racked up 122-2 with Matthew Corner cracking
an undefeated half-century and Niall Cutter adding 26.
At present the team has only focused on detecting defects near the surface of the railhead such as gauge corner cracking
, where a shallow crack can block the ultrasound from penetrating down to a deeper crack behind it.
The first discovery of dangerous gauge corner cracking
(GCC) on the East Coast mainline at Aycliffe was a "dress rehearsal" for the fatal smash in October 2000.
It highlighted the problem of gauge corner cracking
(GCC) - a metal fatigue which was known to cause broken rails - and recommended that checking procedures on tracks should be stepped up.
He told the Echo: ``A lot of progress has been made by Railtrack and the train com-panies in pulling performance back from the days of Hatfield and gauge corner cracking
Byers said that "gauge corner cracking
" - the cause of the Hatfield derailment - had been identified on rails near Potters Bar last year.
The Virgin intercity lines and Connex South Central, which runs the Rugby to Clapham Junction service, are suffering no delays due to the "gauge corner cracking
" which led to the Hatfield rail crash last October.
That in turn, made the corner cracking
problem worse so we got even more downtime.
The court heard the affected track was suffering from GCC - gauge corner cracking
- where the metal is "literally fatigued and tired out by contact with the rolling stock".
Railtrack refused to confirm or deny the existence of a warning letter but admitted that there had been "major problems" with the track around Potters Bar - referring to the gauge corner cracking
``The report was to find out the causes of gauge corner cracking
-- the issue that caused the Hatfield accident.