Metro friction ring

• Following Fridays incident -- which also involved a friction ring -- Metro said in a media advisory that 464 rail cars in its 2000-, 3000- and 4000-series rail cars have similar brake assemblies to the train car in question, No. 2072.
(Huffington Post)
• WASHINGTON - Metro has taken 16 rail cars out of service after Tuesdays malfunction on the Blue and Orange lines that resulted in the evacuation of hundreds of passengers.
(FederalNewsRadio.com)
• WASHINGTON - Metro says it will inspect 464 train cars after a brake part fell off an Orange line train Friday afternoon.
(FederalNewsRadio.com)
• Another announcement: We are waiting for trains to turn around at Metro Station, and we will be off-loading This part is called a friction ring, and its kind of like brake discs on a car, according to The Washington Post.
(Abilene Reporter-News)
• Metro is investigating the incident, which seems to have involved a friction ring from the brake system becoming detached from the train. Metro spokesman Dan Stessel told WMAL.
(630 WMAL)
• Agency officials said a problem with a hub appears to have cause a friction ring to come loose from the brake assembly. However, they remain uncertain about what exactly caused the malfunction.
(Washington Times)
• Tesla: http://bit.ly/tOoGFx TRAIN FATIGUE: A faulty friction ring caused a meltdown in midday train service on the D.C.
(Politico.com)