What was found
MAIN CABIN LH SIDE SEAT RAIL BETWEEN 788.15-797.0 HAS CORROSION. REMOVED L/H SIDE AFT EMERGENCY EXIT LOWER SILL FOR ACCESS. INSTALLED LH AFT EMERGENCY EXIT STEP PLATE REF AMM 20-21-00-910-801-A01 AND SRM 51-41-02-001-001-A01. REMOVED L/H SIDE SEAT TRACK BETWEEN FS 785.15 AND FS 847.00+16.00. REPLACED L/H SEAT BACK BETWEEN FS 785.15 AND FS 847+16.00 IAW AMM 53-00-49-400-801-A02. UPON FURTHER INVESTIGATION, FOUND SEAT TRACK TO BE CORRODED OUT OF LIMITS. REQUIRES REPLACEMENT. REF SRM 53-41-49-101-001-A02.