As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AFT PIT RH TRANSITION FROM FS 727 TO FS 767 CORRODED IN MULTIPLE LOCATIONS. GROUNDED - YES. REMOVED CORROSION FROM AFT PIT RH TRANSITION FROM FS 727 TO FC 767 AND TRANSITION WAS FOUND TO BE OUT OF LIMITS IAW B737-800 SRM 53-00-53-1A-2. FABRICATED AND INSTALLED NEW RH TRANSITION IAW B737-800 SRM 51-40-02-0G-0W=2" O=.040" R=.018" L=8" D=.022".