Page:NTSB RAR-73-5.pdf/5

TABLE OF CONTENTS

1. Page

2. FOREWORD ................................................................................................................................................................................................................................................................................................................................................................................................

   iii

3. I.

   SYNOPSIS ................................................................................................................................................................................................................................................................................................................................................................................................

   1

4. II.

   FACTS ................................................................................................................................................................................................................................................................................................................................................................................................

   2

5. The Accident ................................................................................................................................................................................................................................................................................................................................................................................................

   2

6. Method of Operation ................................................................................................................................................................................................................................................................................................................................................................................................

   7

7. Train Equipment ................................................................................................................................................................................................................................................................................................................................................................................................

   8

8. Accident Losses ................................................................................................................................................................................................................................................................................................................................................................................................

   12

9. Crewmembers ................................................................................................................................................................................................................................................................................................................................................................................................

   12

10. Postaccident Tests and Inspection ................................................................................................................................................................................................................................................................................................................................................................................................

    15

11. Applicable Standards ................................................................................................................................................................................................................................................................................................................................................................................................

    17

12. ICG Operating Rules and Practices ................................................................................................................................................................................................................................................................................................................................................................................................

    19

13. III.

    ANALYSIS ................................................................................................................................................................................................................................................................................................................................................................................................

    24

14. Operation of Train 720 ................................................................................................................................................................................................................................................................................................................................................................................................

    24

15. Operation of Train 416 ................................................................................................................................................................................................................................................................................................................................................................................................

    25

16. Rule Interpretation ................................................................................................................................................................................................................................................................................................................................................................................................

    26

17. Management Practices ................................................................................................................................................................................................................................................................................................................................................................................................

    27

18. Systems Failure ................................................................................................................................................................................................................................................................................................................................................................................................

    28

19. Crash Factors ................................................................................................................................................................................................................................................................................................................................................................................................

    29

20. IV.

    CONCLUSIONS ................................................................................................................................................................................................................................................................................................................................................................................................

    31

21. V.

    PROBABLE CAUSE ................................................................................................................................................................................................................................................................................................................................................................................................

    34

22. VI.

    RECOMMENDATIONS ................................................................................................................................................................................................................................................................................................................................................................................................

    35

23. APPENDICES

24. Appendix A: Excerpts from ICG Chicago Division Electric Train Timetable No. 5 ................................................................................................................................................................................................................................................................................................................................................................................................

    37

25. Appendix B: Stopping Distance of Train 720 from Various Speeds ................................................................................................................................................................................................................................................................................................................................................................................................

    38

26. Appendix C: Excerpts from ICG Rules Regulations of the Operating Department ................................................................................................................................................................................................................................................................................................................................................................................................

    39

27. Appendix D: Results of ICG Efficiency Tests ................................................................................................................................................................................................................................................................................................................................................................................................

    43

28. Appendix E: Excerpts from the Code of Federal Regulations ................................................................................................................................................................................................................................................................................................................................................................................................

    45

29. Appendix F: Safety Board Recommendations to ICG and Chicago South Suburban Mass Transit District, November 30, 1972 ................................................................................................................................................................................................................................................................................................................................................................................................

    46

30. Appendix G: Safety Board Recommendation to FRA, April 25, 1973 ................................................................................................................................................................................................................................................................................................................................................................................................

    49

31. Appendix H: Safety Board Recommendation to UTMA,, April 25th, 1973 ................................................................................................................................................................................................................................................................................................................................................................................................

    56

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