Photos via Kate
Update 2 from another escalator expert:
What came loose is considered the decking. The decking should be secured by screws to prevent this type of accident. I do not know if this unit was serviced shortly before this accident or not.Update from a source very familiar with escalators:
Sounds like someone didn't put screws in it.Some other good photos here and here.
First off there should not be jagged edges or gaps on an escalator for a bag or clothing to catch. Second, the decking is supposed to be screwed down.
It's too bad more people had to get hurt.
Correction— nbaliga (@nbaliga1) August 7, 2012
@wmata several people injured after escalator accident.Big chunk of steel bent and ripped into people.