As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AFT PIT L/H TRANSITION HAS AREAS OF CORROSION ON UPPER AND LOWER SURFACES STA 727A TO 827. GROUNDED - YES. REMOVED CORROSION AND CHECKED LIMITS. FOUND TWO AREAS OUT OF LIMITS FS 727H - FS 727I AND FS 747-787. ALL OTHER AREAS ARE IN LIMITS IAW B737-800 SRM 53-00-53-1A-2. REFINISHED IN LIMITS AREAS IAW B737-800 SRM 53-00-53-1A-2. REPAIRED FS727H - FS787 IAW B737-800 SRM 53-00-53-2R-6W- 1.0" O- .040 R- .031 L- 20.0" D- .009.