Late last night (Saturday, May 15th) shortly before midnight, 8310 on the 27 struck a utility pole and brought down power lines at Ridge and Butler Pikes in Plymouth Township, Montgomery County. Power was knocked out in the area and was restored around 1:00 this morning. The two people on the bus were not injured.
Story: http://abclocal.go.com/wpvi/story?section=news/local&id=7444380
Note: The last 27 on Saturday nights from Plymouth Meeting leaves the mall at 11:20 PM, thus placing this accident around that time.