As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING CPCP INSPECTION FOUND LEVEL 2 CORROSION. CORROSION ON SEAT TRACK FLANGES AT RBL 11 BS 1283 TO 1335. REMOVED SEAT TRACK BS 1283 TO 1335 RBL 11 IAW SRM 51-30-02. REPLACED SEAT TRACK IAW B747 SRM 51-30-02 AND 51-10-01. CORROSION TASK CARD NUMBER C53-210-06 PART 1 OF 1. NON-ROUTINE TASK CARD NUMBER 12876.