As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
L/H MAIN CABIN SEAT TRACKS HAVE WEAR MARKS AND CORROSION THROUGHOUT. GROUNDED - YES. REMOVED DAMAGE AND CORROSION AS REQD. ORIG MAT. THICKNESS IS .230", REMOVED .031" AT DEEPEST POINT WITH 0.199" REMAINING. FOUND WITHIN ALLOWABLE LIMITS IAW B737-900ER SRM 53-00-52. RESTORED FINISH AS REQD IAW B737-900ER SRM 53-00-52.