As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
RT FS 280 WEB ANGLE HAS FILIFORM CORROSION AROUND FLOORBOARD FASTENER. UPON REMOVAL OF WEB ANGLE, NO CORROSION FOUND. CORROSION WAS FOUND ON RT FS 280 CROSS BEAM. REMOVED AND REPLACED CROSS BEAM IAW SRM 51-42-06-001-001-A01, 51-42-21-001-001-A01 AND 51-42-22-001-001-A01.