As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
HEAVY CORROSION ON BUTT STRAP BETWEEN STATIONS 4214.0 AND 4992.0 AT PASSENGER DOOR ENTRY WAY FORWARD FUSELAGE. (SERVICE) REPLACED TWO LEFT CENTER FORWARD BUTT STRAPS BETWEEN FRAMES 13A AND 21, LEFT CENTER T-PROFILE FLOOR SUPPORT IN REFERENCE TO 120 SRM.