As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AFT CARGO L/H TRANSITION HAS AREA OF CORRROSION STA 727A TO 807. GROUNDED - YES. REMOVED AND INSTALLED AND FABRICATED NEW TRANSITION DRILLED AND LOCATED L/H FROM STA 727A TO STA 847 IAW B737-900 SRM 51-40-02-06-0 AND SRM 51-40-05-06W= .3" O= .040 R= 0.000 L= 4" D= .040.