As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
WHILE PERFORMING L1 DOOR LOWER BEAM REWORK, CORROSION FOUND ON FWD AND AFT LOWER GIRT BAR CUT OUT AREAS. REMOVED AND INSTALLED NEW L1 DOOR THRESHOLD REF: SRM 51-40-08. SEE W/O H6951 SN 610 FOR WORK DETAILS. AIRCRAFT REMAINS IN HEAVY CHECK BNA.