Japan's transport ministry is investigating the minor collision of two cargo jets at Narita airport near Tokyo on Thursday.
The agency says the accident occurred in a parking area at around 8 p.m. between an All Nippon Airways Boeing 767 and a FedEx MD-11. Both planes were bound for Shanghai.
The Boeing 767 was being pushed back by a towing vehicle. It hit the tail of the MD-11, which was moving out for takeoff.
No one was injured in the accident.
A runway was briefly closed. No other flights were affected.