As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING HEAVY MAINTENANCE CORROSION WAS FOUND AT RT SEAT TRACK FRAME 12 TO 21, RBL 9.5 TO 12.5 FORWARD WET AREA. REMOVED CORROSION MATERIAL LOSS W= 1.0 L= 1.7 D=0.050. NOMINAL THICKNESS IS 0.070 LOCATION IS 2" AFT OF FR 14, RBL 10. R & R RT SEAT TRACK REFERENCE SRM 51-12-01; 51-41-01; 51-41-02; 51-43-03; 51-23-06; CPM 51-25-00. THIS ITEM HAS BEEN CLASSIFIED AS A LEVEL 2 CORROSION.