What was found
CORROSION AROUND FASTENER AT BS 907+4, BL 0, WL 306.5 ON FUSELAGE SKIN UNDER DORSAL FIN. REMOVED THE ONE FASTENER IAW SRM 51-40-02. REMOVED CORROSION, PERFORMED VISUAL INSPECTION WITH 10-POWER MAGNIFYING GLASS IAW SRM 51-10-02, PARAGRAPH 15 A 6 A. NO ADDITIONAL DAMAGE NOTED. HFEC INSPECTED SKIN BLENDOUT AREA IAW NDTM P6, 51-00-00, PROC 23. NO DISCREPANCIES NOTED. INSPECTED OPEN HOLE IAW NDTM P6, 51-00-00, PROC 16. NO CRACKS NOTED. FOUND OUT OF LIMITS IAW SRM 5-00-01-1A-1, FIG 103, DETAIL D. INSTALLED THE FASTENER ACCOMPLISHED ON EA 21-153-02635-WIP1.