What was found
DURING CURRENT C CHECK, FOUND LT STABILIZER REAR SPAR CORRODED AT STABILIZER B/L 372, STA 550. NO ESTABILISHED LEVEL OF CORROSION DECLARED SINCE ITEM DISCOVERED DURING ROUTINE INSPECTION. REMOVED EXISTING SPAR SPLICES LOCATED AT STAB STA. 525 AND 570. REMOVED SPAR SECTION TO EXISTING SPLICES. FABRICATED REPLACEMENT SPAR SECTION, SPLICE STRAP SEGMENTS AND FILLER STRIPS. INSTALLED REPAIR PARTS IAW SRM.