As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
BS 349 - 364 INTERCOSTAL ON STRINGER 27L WAS CORRODED AFT INNER SIDE. THE INERCOSTAL WAS FOUND OUT OF LIMITS, NO DAMAGE ALLOWED TO THE ATTACHING FLANGE OF THE INTERCOSTAL IAW SRM. REMOVED AND REPLACED THE INTERCOSTAL IAW SRM, AND DRAWING.