As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
MAIN CABIN STUB FRAME AT STA 600 LOWER AFT FLANGE HAS 2 OPEN EXISTING HOLES WITH SHORT PITCH AND RADIUS LOCATION AND 2 EXISTING FASTENER HOLES WITH LIGHT GOUGES IN RADIUS APPROX LBL 51. R&R MAIN CABIN STUB BEAM, FRAME STA 600 LT IAW DWG 657N4311 REV -. MAJOR REPAIR.