What was found
DURING ROUTINE C-CHECK INSPECTION, FOUND COCKPIT ESCAPE HATCH FUSELAGE STRUCTURE HAS A HOLE DRILLED THROUGH SKIN AND SKIN BROKEN OUT, FWD LEFT HAND CORNER. REPAIRED COCKPIT ESCAPE HATCH FUSELAGE STRUCTURE FWD LT CORNER IAW AIA/E/2621, AND EA L1-53-005 REV ORIG, 8110-3, SEPT 08, 1997. C-CHECK WORK CARD NUMBER 02-53-1001. NON-ROUTINE TASK CARD NUMBER 000687.