What was found
DURING 'C' CHECK MAINTENANCE FOUND MODERATE CORROSION DAMAGE ON AFT SIDE OF FRAME WEB, LONGERON 36, FS 1890. INSTALLED REPAIR IAW UPS EO DC8-53-1320.
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
DURING 'C' CHECK MAINTENANCE FOUND MODERATE CORROSION DAMAGE ON AFT SIDE OF FRAME WEB, LONGERON 36, FS 1890. INSTALLED REPAIR IAW UPS EO DC8-53-1320.