The Flair Airlines Boeing 737 MAX 8, being prepared for flight F8576 to Canc£n, was damaged after being hit by ground service equipment. Flair Airlines flight F8576, a Boeing 737 MAX 8, was at gate no.3 at the Region of Waterloo International airport (CYKF), ON, undergoing baggage loading. A belt loader at the aft hold of C-FLRS, was inadvertently put into forward gear and maneuvered under the aircraft causing damage to the aircraft belly skin, the cargo door bear strap and the forward and aft scuff plates. The belt loader traveled completely underneath the aircraft with the agent on the unit and exited behind the wing on the left side causing the agent to fall off the loader. The belt loader continued forward across the ramp to gate no.2 striking C-GFEH, a parked Boeing 737-800 aircraft operated by Sunwing Airlines. The agent received minor injuries.