As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
PER EA WORK INSTRUCTIONS SILL P/N ARC0639-3 REQUIRES FABRICATION FABRICATED SILL ARC0639-3 PER DAC DRAWING ARC0639 AND SAMPLE PER EA 1-5710-T0372370 P3; WINGS - BASIC WING STRUCTURE - LH WING REAR SPAR UPPER CAP AFT LEG. (NOTE: INSTALLATION IN EA) MAJOR REPAIR.