What was found
CORROSION ON MAIN DECK COURIER AREA SEAT TRACK FR16 TO FR18 Y450. CORROSION BLEND OUT EXCEEDED SRM ALLOWABLE LIMTS, REMOVED AND REPLACED SEAT TRACK SEGMENT FROM FR14 TO FR18 Y 450 IAW A300-600 SRM 51-40-00-001 USING ALTERNATE FASTENERS IAW FED EX EA NO. 6- 5310 5310-T0342516 P1 FUSELAGE-MAIN STRUCTURE: SEAT TRACK INSTALLATION, FR14 AND FR18, Y= 450, FASTENERS INSTALLATION/SUBSTITUTION.