As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
(LOG 1891771) DURING INSPECTION FOUND CORROSION ON LH WING FUEL ACCESS CUTOUT NBR 531AB,531BB AND 532AB. CORROSION ON LH WING FUEL ACCESS CUTOUT NBR 531AB,531BB AND 532AB WERE REMOVED PER B737-900ER SRM 57-20-01-REPAIR 1 PROCEDURE 1. AND SRM 51-10-02.