What was found
CORROSION ON BORE INNER AND OUTER SURFACE OF RIBS FROM STA XOS= 380 AND 429 AT LT SLAT PANEL NR 4. CORROSION WAS REMOVED IAW SRM 51-10-3 PAR 26 WAS ACCOMPLISHED ORIGINAL THICKNESS ON RIB AT STA XOS=380 IS .270" AND MINIMUM REMAINING THICKNESS IS 0.259" WAS ACCOMPLISHED ORIGINAL THICKNESS ON RIB AT STA XOS= 429 IS 0.420" AND MINIMUM REMAINING THICKNESS IS 0.413" THEREFORE IT'S WITHIN OF LIMITS IAW SRM 57-01 FIG 1 REWORKED AREAS WRER TREATED AND PAINTED IAW SRM 51-10-3 PAR 14/21. DAMAGE ON STA XOS= 429 WAS REWORKED AND MEASURED, WITH I.D. HOLE 0.9365 (4 HOLES) THEREFORE WITH LIMITS OF MAXIMUM REWORK HOLE DIAMETER IAW SRM 57-02 PAR 9 C (1). BUSHINGS WERE FABRICATED (4 EAS) IAW SRM 57-02 PAR 9 C (2). DAMAGE ON RIB STA XOS= 380 WILL BE PERFORMED WITH CARD NO 16 A/C ZONE 11. AND BUSHINGS WERE INSTALLED IAW SRM 51-30-10 PAR 7.