What was found
DURING ROUTINE C CHECK INSPECTION, FOUND LEFT HORIZONTAL STABILIZER LOWER SKIN CORRODED FROM STATION XE29.812 TO STATION XE52.825. REMOVED CORROSION. FOUND OUT OF LIMITS. REMOVED CORRODED SKIN. CLEANED, TREATED AND PRIMED AREA AND NEW SKIN. INSTALLED NEW SKIN IAW DC8 SRM 51-1-21, DC8 SRM 51-1-8 PG 17-18, DC8 SRM 55-2-0 PG 12, AND DC8 SRM 51-1-8B.