Remarks: This looks like exactly what it is: the Brasilia is completely off, with its main door open, nobody onboard, and getting pushed backwards towards the maintainence center at PDX before its 4:34 PM showtime to Klamath Falls (KLMT).
Remarks: Lots of employees at work here: the pilots are working on the shut down procedure, the flight attendant has just opened the door, and a ramp agent is setting up cones.