What was found
AFT MID LAV, AFT IND LOWER CORNER HAS EVIDENCE OF CORROSION. CLEANED LOWER AFT I/B CORNER OF MID LAV FOUND OUT OF LIMITS IAW B757 AMM 51-00-53. REMOVED LOWER SUPPORT FITTING FROM MID LAV AFT LWR SIDE IAW B757 SRM 51-40-02. REMOVED CORROSION FROM SUPPORT FITTINGS MID LAV AFT LWR SIDE PER B757 SRM 51-00-53. FABRICATED FILLER AND V-CHANNEL DOUBLER USING S/S 301 1/2 .071 PO 7481237 AS PER EO 1-2010-39 CONTINUE STEP NR 1 AFTER CLEANING AREA FOUND CORROSION TO BE OUT OF LIMITS, TRIMMED OUT DAMAGED AREA AT FLANGE AS PER EO 1-2010-39 C/W NDT AT CUT-OUT AREA. OK TO TREAT AND PRIME REPAIRED SUPPORT FILLING TREATED WITH ALODINE + PRIMER & PAINTED SUPPORT FITTING AREA AND REPAIR AS PER B757 FOR EO 1-2010-39 AND SRM 51-20-01. INSTALLED REPAIRED SUPPORT FITTING AS PER B757 EA 1-2010-39, INSTALLED SUPPORT FITTING AT WALL OF MID LAV AS PER B757 SRM 51-40-02.