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… Instructions may be issued by a signalman when necessary. 602. Proper Signal Indications Required (a) Except in case of …
3
… movement(s). TOP when SCT is applicable or specified by special instructions. Other forms of protection when specified by special instructions. On tracks where kicking is permitted … NMT Rule 841 TOP when SCT is applicable or specified by special instructions. Other forms of protection when …
21
… a valid certificate of rules; and (b) when conditions permit, require those to whom the TOP is read aloud, to read …
54.29
… by wheel flange, a member of the crew must manually line the switch and ensure the points are properly lined …
9.845
… fire is closed to all aircraft not directly involved in firefighting operations. Background: Disrupting air traffic … increases the likelihood of a midair collision with firefighting aircraft, forcing response teams to ground their …
3