What was found
DURING HEAVY MAINTENANCE: WINGS / LH WING / BOTTOM SKIN PANEL 3 / RIBS 6A, REAR SPAR-FALSE REAR SPAR / CORROSION - TEMPORARY REPAIR; REFERENCES: /1/ AEROMAN EA 57-0122-25 COVER & PARTS 1-11 /2/ AIRBUS RDAF 81692663/023/2025 ISSUE A /3/ AIRBUS TD/81692663/012/2025 ISSUE F /4/ REPAIR DWG R572-41044 ISSUE B /5/ MX244. DESCRIPTION: DURING HEAVY CHECK ON AIRCRAFT N587JB (MSN 02177) IN AEROMAN (SAL), WHILE PERFORMING MPD TASK 575167-01, CORROSION WAS FOUND ON THE LH WING BOTTOM SKIN PANEL 3 RIBS 6A BETWEEN REAR SPAR AND FALSE REAR SPAR. SEE REF /1/ EA FOR DETAILS. CORROSION WAS REMOVED VIA BLEND OUT. THE MINIMUM REMAINING THICKNESSES WERE MEASURED AND CONFIRMED TO BE OUT OF SRM SCOPE. AIRBUS WAS CONTACTED FOR REPAIR DISPOSITION. THE REF /3/ TD WAS RELEASED WITH REPAIR INSTRUCTIONS CONSIST OF TRIM OUT OF SKIN WITH LESS THAN 1 MM THICKNESS, FABRICATE & INSTALL REPAIR PLATE IAW REF /4/ REPAIR DWG AND RESTORE SURFACE PROTECTION. EC A26-080-01 IS ISSUED TO PERFORM TEMPORARY REPAIR IAW REF /1/ EA & COMPLIES WITH REF /2/ RDAF WITHOUT DEVIATIONS. EC A26-080-02 IS ISSUED TO TRACK 6 MONTHS DTA. SUBSTANTIATION: THIS REPAIR IS APPROVED PER REF /2/ RDAF AND IT IS CLASSIFIED AS MAJOR IAW REF /5/ MX244 GUIDELINES. (E/C: A26-080-01)