Background
On the day of the incident, an airport firefighter was dispatched to the terminal in response to a medical aid call. The firefighter parked his crash fire rescue (CFR) vehicle at one of the terminal gates before entering the building.
Accident Details
The driver of the vehicle reported that he did not remember setting the parking brake on his vehicle. Additionally, he forgot to place anti-roll tire chocks under the wheels before leaving the vehicle unattended. Subsequently, the CFR vehicle rolled forward and collided with a jet that was stationary on a taxiway, awaiting instructions from the control tower.
Impact and Damage
Upon impact, the vehicle became lodged between the fuselage and the wing root on the right side of the airplane. The aircraft sustained damage as a result of the collision, though specific damage items are not described in the source.
Conclusion
The accident occurred due to the driver's failure to secure the CFR vehicle before leaving it unattended.