What was found
IAD/SAL - FLT 581 - AT THE GATE, PREVIOUS TO FLIGHT, A TRACTOR HIT THE ENGINE NR 1. A HOLE OF 6 INCHES BY 3 INCHES WAS DONE ON THE FAN COWL AND A HOLE OF 2 INCHES BY 1 INCH WAS DONE ON THE INBOARD FAN COWL. THE AIRCRAFT REMAINED ON GROUND AT IAD STATION FOR COMPLETE INSPECTION AND MAINTENANCE. (X)