As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
WHILE PERFORMING L2 DOOR LOWER BEAM REWORK, CORROSION FOUND ON TOP OF SILL AT AFT GIRT BAR FITTING. REMOVED AND INSTALLED NEW L2 DOOR LOWER BEAM REF: SRM 51-40-08. SEE W/O H6951 SN 606 FOR WORK DETAILS. AIRCRAFT REMAINS IN HEAVY CHECK BNA.