What was found
WEAR MARK ON C CHANNEL SECTION BETWEEN L/H FRAMES 17-20. R&R WITH P/N: 212-23201-03-1 IRW CASA 212 SRM SECTION IV FIGURE 4.28 PAGES 0A-02 & INSTALLED WITH FASTENERS AN470E5, AN470E6, AN426E4, AN426E5, HL18-5, HL18-6, HL70-5, & HL70-6. IRW AC-43.13-1 B SECTION 4-57 PAGES 4-14 TO 4-17 & SECTION 4-57 PARAGRAPH E PAGES 4-19. USED PREVIOUS C-CHANNEL'S EXISTING HOLES FOR RIVET SPACING & SIZE. NEW C-CHANNEL WAS ALODINED, PRIMED, INSTALLED WET WITH PR1425 SEALANT AND PAINTED. CONTINUED AIRWORTHINESS WILL BE MAINTAINED IN ACCORDANCE WITH CURRENT INSPECTION PROGRAM OR A/C MANUFACTURERS INSPECTION PROGRAM.