As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AFT PIT TRANSITION L/H SIDE HAS CORROSION FROM STA 727B TO 827. GROUNDED - YES. REMOVED CORROSION AND IS OUT OF LIMIT IAW B737-800 SRM 53-00-53-1A-2, REMOVED AND REPLACED TRANSITION PANELS IAW B737-800 SRM 53-00-53-2R-5W= 1" O= 0.040" R= 0.000 L= 2" D= .040".