As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
*** WHILE AIRCRAFT WAS OUT OF SERVICE FOR HEAVY CHECK *** LEVEL 2 CORROSION WAS FOUND ON L1 DOOR LOWER SILL BEAM @ FWD AND AFT GIRT BAR FITTING AREA. SILL BEAM WAS BLENDED AND FOUND WITHIN LIMITS PER SRM 53-10-11, GIRT BAR FITTINGS AREA REPAIRED IAW ETD 2019-170-123413. AIRCRAFT RETURNED TO SERVICE.