3:06 p.m. - A circuit breaker trips and remains open at the L'Enfant Plaza Station. However power continues to be fed to the third rail from south of electrical arcing location.
3:16 p.m. - Ventilation fans are activated at the L'Enfant Plaza station due to reports of smoke.
3:17 p.m. - Operator of Train 302 contacts Metro's control center to report that the train is stopped. At the same time, smoke can be seen re-emerging from the southern tunnel into the L'Enfant Plaza Station.
3:24 p.m. - Metro requests medics and firefighters; reports smoke in the L'Enfant Plaza Station and patrons in the station who "can barely breathe."
3:24 p.m. - Ventilation fans south of the station are turned on.
3:28 Metro box alarm alerts at L'Enfant Plaza Station
3:46 p.m. Operator of Train 302 reports that one passenger is unconscious
3:49 p.m. - Power is cut off south of the stranded train. At the same time, the operator of Train 302 reports that passengers are "self-evacuating."