As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AFT PIT R/H TRANSITION PANEL STA 727 TO 727E+12 HAS CORROSION. GROUNDED - YES. REMOVED DAMAGE FROM R/H TRANSITION AT STA 727-727E+12 IAW B737-900ER SRM 53-00-53-1A-2.2.D ORIG THICKNESS .040 IAW B737-900ER SRM 53-60-53-OI-2 TABLE 2 100% MAT LOSS AND FOUND TO BE OUT OF LIMITS IAW B737-900ER SRM 53-00-53-1A-2.4.A.2 REPAIRED TRANSITION PANEL USING MAT BAC 1496-377 B737-900ER SRM 53-00-53-2R-5DOT REMOVED.