What was found
UPPER AFT FUSELAGE CABIN, RT, INBD SEAT TRACK CORROSION NOTED AT THE AFT END, RBL 23, FR 74. REPLACED SEAT TRACK RBL 23 BTW FR 61 TO FR 74 IAW ASRP BD500-A-J51-42-20-00AAA-078A-A, ASRP BD500-A-J51-42-06-00AAA-078A-A AND DWG C01342701, REV G. (LP 1744624 - AIRCRAFT WAS GROUNDED)