What happened
The FAA’s narrative, in sentence case. The FAA writes it in capitals and removes private details.
Ship 603 was on an active taxiway holding short of a service road with the parking brake set. A delta B757 was positioned in front of incident aircraft. When the B757 received taxi clearance, a tug and train of baggage carts were driving on the service road. As the 757 increased thrust to move it is believed the jet blast broke one of the carts loose and sent the cart into the cowling of the #1 engine.
As the FAA filed it
SHIP 603 WAS ON AN ACTIVE TAXIWAY HOLDING SHORT OF A SERVICE ROAD WITH THE PARKING BRAKE SET. A DELTA B757 WAS POSITIONED IN FRONT OF INCIDENT AIRCRAFT. WHEN THE B757 RECEIVED TAXI CLEARANCE, A TUG AND TRAIN OF BAGGAGE CARTS WERE DRIVING ON THE SERVICE ROAD. AS THE 757 INCREASED THRUST TO MOVE IT IS BELIEVED THE JET BLAST BROKE ONE OF THE CARTS LOOSE AND SENT THE CART INTO THE COWLING OF THE #1 ENGINE.