As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
COE HEAVY CHECK / LEVEL 2 CORROSION: STRINGER 20R JOINT SPLCE BETWEEN FRAMES 12 & 13 HAS LEVEL 2 CORROSION. FOUND TO BE OUT OF LIMITS LENGTH .7", WIDTH .4" AND DEPTH .010". REMOVED AND REPLACED JOINT STRINGER AND STRINGER CLIP IAW ATR SRM.