What was found
THE ACFT INPUT FOR 6C CHK ON DEC 10, 2009. DURING CPCP, THE INSPECTOR PERFORMED VISUAL INSP AND FOUND LEVEL 2 CORROSION ON LT WING FRONT SPAR WEB BETWEEN WS 508 AND WS 517; LENGTH:3.75"; WIDTH:2.5"; THICKNESS OF ORIGINAL:0.370"; THICKNESS OF CORROSION REMOVED:0.272". AFTER (OWNER) VERIFY AS A MAJOR REPAIR ON JAN 29, 2010, THE SPAR WEB CORROSION HAS BEEN REPAIRED IAW FAA DER APPROVED DATA AND FORM 337 WILL BE SUBMITTED TO FAA FOR FINAL RESULT OF CORRECTIVE ACTION DETAIL.