What was found
CORROSION ON BORE/INNER AND OUTER SURFACE OF RIBS FROM STA XIS=83,136 AND 186 AT SLAT PANEL LT NR 1. CORROSION ON OUTER SURFACE OF RIBS WERE REMOVED IAW SRM 51-10-3. RIBS WERE MESURED AS FOLLOWS ORIGINAL THICKNESS IS 0.320" REMAINING THICKNESS IS 0.277", THEREFORE IT'S WITHIN LIMITS IAW SRM 57-01, FIG 1. REWORKED AREA ON OUTER SURFACE WAS TREATED AND PAINTED IAW SRM 51-10-3. DAMAGE ON BORE OF RIBS WERE REMOVED AND MEASURED; STA XOS=83 HOLES AFT AND FWD ID 1.063" AND FWD INBD ID 1.062", STA XOS=136 HOLES AFT 0.938" AND HOLES FWD 0.950", XOS=186, HOLES FWD 0.938" THEREFORE WITHIN LIMIT OF MAXIMUM REWORK HOLES DIAMETER IAW SRM 57-02, PAR 9. BUSHING WERE FABRICATED AND INSTALLED IAW SRM 57-02, PAR 9 C 1, 2.