Unexplained , intermittent failures persist despite repairs , Metro official says . Nine people were killed in the June 22 accident . Passenger hears loud noises , ` ` accordion - like '' collapse of floor , screams . Passenger chides Metro for making high - speed , ` ` impossible '' possible . 9 people killed , 20 injured in June 22 crash near Red Line 's Fort Totten station .
Unexplained , intermittent failures persist despite repairs , Metro official says . Passenger hears loud noises , ` ` accordion - like '' collapse of floor , screams . Passenger chides Metro for making high - speed , ` ` impossible '' possible . 9 people killed , 20 injured in June 22 crash near Red Line 's Fort Totten station .