As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING HEAVY CHECK INSP, CORROSION WAS FOUND ON LT WING AFT SPAR UPPER HORIZ FLANGE AND UPPER SKIN AT RIP 29. THE CORROSION WAS REMOVED AND DAMAGE BLENDED IAW ATR S.R.I. DO/TS-3042/11-15468. THE REPAIR WAS PERFORMED BY TECH SERVICES UNDER WO 17010, TASK 323. APPROVED UNDER STRUCTURAL REPAIR APPROVAL SHEET (SRAS) DO/TS-3042/11...6531. SUPPLEMENTARY INSP TASK: DVI OF BLENDED AREAS FOR NEW CORROSION WITH THRESHOLD.