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Certainly is - the derailment occurred as a result of the trap points working as intentioned - the question is - as Bryson says - WHY the SPAD occurred.
The 197 was booked only for yesterday in preparation for the TT change, believe it will be 2x 197 and 1x 230, with it swapping to 1x 197 and 2x 230 if reliability improves.