As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING HEAVY MAINTENACE INSPECTION CORROSION WAS FOUND OUT OF LIMITS ON INBOARD SIDE OF SEAT TRACK AT BS 380 TO BS 420, RBL 20. REMOVED CORROSION IAW B727 SRM 51-10-06. FABRICATED NEW SEAT TRACK PER SAMPLE FROM BAC 1520792 7075 T6. TREATED AND PRIMED IAW B727 SRM 51-10-02 AND MM 51-20-02. INSTALLED IAW B727 SRM 51-30-02.