What was found
DURING 'C' CHECK, MAINTENANCE FOUND LEFT FRAME CHORD STA 1342, LBL 20, WL 228 CORRODED. INSTALLED REPAIR IAW BOEING DWG 69-15405 AND SRM 51-30-2.
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
DURING 'C' CHECK, MAINTENANCE FOUND LEFT FRAME CHORD STA 1342, LBL 20, WL 228 CORRODED. INSTALLED REPAIR IAW BOEING DWG 69-15405 AND SRM 51-30-2.