EMB ERJ 170/175 ER/LR
Communication Breakdown
Ground Event / Encounter Vehicle
Aircraft Aircraft Damaged
Environment - Non Weather Related; Human Factors
I was assigned to de-ice an aircraft. I was currently inspecting the nose of the airplane when I saw a plane coming into [the adjacent] gate. I immediately tried to stop him or give him attention to stop him because I knew he was going to hit the truck. Unfortunately; he continued and hit the left side of the wing on the truck. No gate crew was at that gate when the plane was coming in. I called the lead to report it.
Ramp employee reported an aircraft contacted the parked de-icing truck during taxi into the adjacent gate.