As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
(LOG 2464188) DURING INSPECTION FOUND CORROSION ON INTERCOSTALES (1EA) BELOW RH SIDE PLATE BTW STA 500A AND 500B AT FWD CARGO COMPARTMENT. INTERCOSTAL WAS REPLACED PER B737-900ER SRM 51-40-02-0G PAR 4 AND PAR 7 AND B737-900ER SRM 53-00-53-1A.