What was found
FORWARD FUSELAGE FLOOR STRUCTURE, RT INBD SEAT TRACK CORROSION NOTED AT THE FORWARD END, RBL 23, FR 20. REPLACED SEAT TRACK FROM FR 20 - FR 30 RBL23 IAW ASRP BD500-J51-42-20-00AAA-078A-A AND DWG C02312600, REV-J. (LP 1743765 - AIRCRAFT WAS GROUNDED)