The correct answer is A. T-509.
A T-509 is a form that is used to report a station in rear issue for passing an Approach stop signal at ON. The form must be completed by the train crew and submitted to the railroad’s dispatcher. The dispatcher will then investigate the incident and take appropriate action.
A T-369(3b) is a form that is used to report a train movement violation. This form is used to report violations of train movement rules, such as passing a stop signal. The form must be completed by the train crew and submitted to the railroad’s dispatcher. The dispatcher will then investigate the incident and take appropriate action.
A T-369(1) is a form that is used to report a train accident. This form is used to report accidents that involve trains, such as derailments or collisions. The form must be completed by the train crew and submitted to the railroad’s dispatcher. The dispatcher will then investigate the incident and take appropriate action.
A simple memo is a document that is used to communicate information. A simple memo can be used to report a station in rear issue for passing an Approach stop signal at ON. However, a simple memo is not the most appropriate form to use for this type of report. A T-509 is the most appropriate form to use for this type of report.