As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
(LOG 1007562) AFT CARGO COMP. WASTE TANK AREA, INTERCOSTAL AT STA 907 TO STA 927 HAS CORROSION LOCATED BETWEEN S-25L AND S-24L. LOCATED AND DRILLED NEW INTERCOSTAL IAW B737-800 SRM 51-40-05,TREATED AND PRIMED NEW HOLES IAW B737-800 SRM 51-20-01,INSTALLED NEW INTERCOSTAL IAW B737 SRM 51-40-02.