What was found
FOUND CORROSION INSIDE LEFT FUEL FEEDER TANK BETWEEN RIBS 4 AND 5. THERE WERE SEVERAL AREAS FROM STIFFENER 1 TO STIFFENER 10. CORROSION REMOVED AS PER SRM ATR72 CH 51-21-42. APPLIED TREATMENT TO NEUTRALIZE ANY HEDDIN CORROSION. PERFORMED FINAL BLEND OUT IAW SRM ATR72 CH 51-21-58. CONFIRMED THAT REMAINING THICKNESS OF BLEADED AREAS HAVE NOT CHANGED REF TABLE 1 OF ATR SRI NUMBER DO/TS-4240/08-10776. CONFIRMED THE ABSENCES OF CRACKS BY USE OF HF EDDY CURRENT. RESTORED PROTECTION OF REWORKED AREAS WITH ALODINE 1200 IAW SRM ATR72 CH 51-21-17 AND CH 51-21-28. REFERENCE ANA/E/4462/2008/E-001 AND ANA/E/4462/2008/E-003.