Last week, a TriMet MAX train traveled between the Hollywood station and Lloyd Center with a door open.

KATU News reports Roz Miller posted video on You Tube that shows the door open while the train traveled along I-84.

TriMet spokeswoman Mary Fetsch said once the train’s operator was alerted the door was immediately disabled.
 
Miller wrote in the comments of his video that people tried to hit the emergency button. The door eventually closed when the train pulled into the Lloyd Center station.
 
“This type of failure is rare and the train has been pulled from service as crews investigate,” Fetsch said in a statement. “We always encourage the public to immediately alert the operator if they see any safety concern.”