What was found
SUPPORT TASK: AFT CARGO INTERCOSTAL STA 1420 TO 1400 BL 0 HAS CORROSION ON LOWER FLANGE AND REQUIRES REMOVAL PER FOM. TRANSCRIBED FROM HAECO GSO NRC 9286543. ESFR COMPLETED REMOVED, FABRICATED, INSTALLED INTERCOSTAL STA 1420 TO 1440 BL 0 CORROSION FOUND OUT LIMIT; ORIGINAL MAT .040, MATERIAL LOSS .030 MATERIAL REMAINED .010, REQ NEW INTERCOSTAL FABRICATED IN LOG PAGE 9286571 JOB NO 26571 IAW B757-200 SRM 51-40-02, 53-00-51, 51-40-03 DWG 145N5399 REV A HAECO GSO MECH V935255 INSP QC204 APPROVED