What was found
CORROSION AROUND FASTENER AT BS 907+11, BL 0, WL 306.5 ON FUSELAGE SKIN UNDER DORSAL FIN. REMOVED THE FASTENER IAW SRM 51-40-02. REMOVED CORROSION AND 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. UT INSPECTED SKIN BLENDOUT AREA IAW B737 NDTM P4; 51-00-00 PROC 2. REMAINING MAT. 0.069 FOUND OUT OF LIMITS IAW SRM 5-00-01-1A-1, FIG 103 DETAIL D. INSTALLED THE FASTENER WAS ACCOMPLISHED ON EA 21-153-02635-WIP1.