As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
SEAT TRACK - CORROSION LOCATION: STA 1640 RT OUTBD TRACK POS: AFT CLEANED TRACK AND FOUND TO BE OUT OF LIMITS PER B757 SRM 53-00-52 AND REMOVED TRACK SECTION FROM STA 1540 -1640 SEAT TRACK FABRICATED ON SHOP ORDER EY7737 BEGAN DRILLING SEAT TRACK. OK TO INSTALL NEW TRACK. REPLACED SEAT TRACK REF BAC DWG 146N5120.