El Al Flight 324 was preparing to depart from from CDG for a scheduled flight to Tel Aviv. An early report about the accident on the Israeli website YnetNews.com quoted an El Al official who said, "While the plane was being towed ahead of take off, the plane's engine was hit by the towing vehicle. We are now trying to evaluate the damage caused to the engine." However most other reports, including one on the aviation news website FlightGlobal.com, say it was the aircraft that hit the tug, not the other way around.
The article on FlightGlobal.com, which includes two photos, reports:
A spokesman for airports operator Aeroports de Paris says the pushback tractor had been disconnected from the aircraft but was still under the 747 when it started to taxi.One of the photos on FlightGlobal.com clearly shows the tug jammed underneath the number three engine. For more photos (and some discussion, for those who can read French) visit this thread on Avia Passion, a French language aviation forum.
"During the departure the tractor had pushed back the aircraft," he says. "It was still under the aircraft and the pilot decided to go without authorisation from the ground staff. Normally the pilot has to wait for ground staff authorisation before moving."
[Photo Source]