The derailment of a six-car diesel passenger train followed the dropping of a diesel engine and its torque converter onto the track under the leading power coach. It was caused by the working loose and subsequent loss of the bolts securing the torque converter end of No. 1 engine assembly to the outside suspension bracket. It is not possible to detect this looseness of these bolts visually due to the static load on the bracket, but it should have been apparent to a fitter trying them with a spanner after the recent overhaul or just two days previously. As a result of this accident, examination of all similar bolts was carried out, and a number were found loose or missing. Instructions were then issued for subsequent examination at intervals of 20-24000 miles. In view of the inaccessibility of these bolts on this type of power car, it was further recommended that a bolt with a turned shank and more positive locking than Grover washers be investigated.

  • Corporate Authors:

    Temple Press Limited

    161-166 Fleet Street
    Longon EC4,   England 
  • Authors:
    • McNaughton, IKA
  • Publication Date: 1964-12-18

Media Info

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Filing Info

  • Accession Number: 00037234
  • Record Type: Publication
  • Files: TRIS
  • Created Date: Dec 4 1994 12:00AM