What was found
MAIN CABIN AFT WET AREA, SEAT TRACK FLANGE CORRODED ON UPPER SURFACE BETWEEN BS 847 AND BS 867 APPROX. LBL25, MARKED. GROUNDED - YES. REMOVED DAMAGE FROM SEAT TRACK AS REQURIED. ORIGINAL THICKNESS 0.070" REMOVED 0.035", REMAINING 0.035" FOUND OUT OF LIMITS IAW B737-800 SRN 53-00-52-1A-1. REMOVED SEAT TRACK FROM STA. 817 - STA. 867 LBL24.75 AND REPLACED WITH NEW SEGMENT IAW B737-800 SRM 53-00-52-2R-T8334P DUE 03/JAN/24.