As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING HEAVY MAINTENANCE INSPECTION CORROSION WAS FOUND TO BE OUT OF LIMITS ALONG THE RECESS AND TEE CAP ON THE OUTBOARD SEAT TRACK AT STA 340 THROUGH 360. REMOVED CORROSION IAW B727 SRM 511006. REMOVED SEAT TRACK IAW B727 SRM 513002. FABRICATED NEW SEAT TRACK PER SAMPLE FROM BAC1520792. TREATED AND PRIMED IAW B727 SRM 511002 AND MM 512002. INSTALLED IAW B727 SRM 513002.