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… the disappearance from view of either the crew member or lights by which signals controlling the movement are being … headlight on a movement fails and repairs cannot be made, ditch lights will be used in lieu of the headlight and the movement may proceed. (b) If all headlights and ditch lights have failed, such lights as are available must …
11.143
… by the Special Control System. 352. Supervision Movements and track work protection will, unless otherwise provided, be … will be issued. Except as affected by such instructions and Rules 351 and 352, all Operating Rules remain in force. … Special …
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