What was found
HEAVY CHECK, MAJOR REPAIR. LEFT WING FWD SPAR LOWER STRIP SLAT HAS FRETTING DAMAGE RIB 13 - RIB 15. REPAIR IAW SRAS S572R0320 8066.
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
HEAVY CHECK, MAJOR REPAIR. LEFT WING FWD SPAR LOWER STRIP SLAT HAS FRETTING DAMAGE RIB 13 - RIB 15. REPAIR IAW SRAS S572R0320 8066.