As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AREA OF SUSPECT CORROSION ON WING CENTER SECTION REAR SPAR LWR CHORD BS 870 RBL36 DUE TO 2 POPPED FASTENER HEADS. PLEASE INVESTIGATE AND RECTIFY AS NECESSARY. AS PER BOEING INSTRUCTIONS THE LWR CHORD WAS REPLACED. NEW CHORD WAS CUT AT RBL 9.5. REPAIR SPLICE ANGLES AND STRAPS INSTALLED IAW SRM51-30-02 AND DWG 65C21566. WCS REPAIR OF WEB CARRIED OUT IAW BOEING REPAIR AND A AAE EO 2005-093-013. UPS AUTHORIZATION NR B727-5710-23321-A.