Commercial Fixed Wing
Flight Crew Air Transport Pilot (ATP); Flight Crew Multiengine; Flight Crew Instrument
Confusion; Distraction
Ground Event / Encounter Vehicle
Aircraft Aircraft Damaged; General Flight Cancelled / Delayed
Aircraft; Human Factors
While performing preflight duties the Captain and myself were in the cockpit when the whole plane shook abnormally during the boarding process. I looked out my side window and witnessed a deice truck under our right wing. The deicer backed out from under the wing causing more shuddering of the aircraft. I called company ops to let them know what happened then went down on the ramp to see the damage. Not sure why; we did not even call for deicing.
First Officer reported that their aircraft was truck by a de-icing truck during boarding.