As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
INTERNAL STRUCTURE HAS SMALL CRACKS EMINATING FROM A RIVET AT LOWER AFT CORNER ON LT MID EMERGENCY EXIT. FURTHER INSP FOUND STRUCTURE AT HOLE BOWED OUT, CAUSING EDGE CRACKS. COLD WORKED METAL BACK INTO SHAPE, UPSIZED HOLE 1 STANDARD SIZE, WHICH CLEANED UP DAMAGE AND INSTALLED NEW RIVET IN HOLE.