1. DC WMATA – taking 5000 series cars ( same series that was involved in rear end collision ) due to mechanical problems.
2. DC WMATA — Appears that they are taking very seriously any mechanical / software failures now. Car had brake rigging problem so entire fleet inspected and suspect parts replaced.
http://www.progressiverailroading.com/mechanical/news/WMATA-completes-railcar-inspection--29437