What was found
WHILE AC WAS IN FOR HEAVY CHECK FOUND LT SEAT TRACK CTR FUSELAGE 1 FR 23-43 CORROSION FOUND. AAR MX REPLACED SEAT TRACK PN 170-67358-007, IAW EMB SRM 51-43-04, 51-43-03, 51-41-02. SEE AAR NRC 4500833-2000-0022 FOR WORK PERFORMED. AC REMAINS IN YQG FOR COMPLETION.