What was found
DURING C18 CHECK AT AIRBORNE TAMPA EXFOLIATION WAS FOUND ON N371CM AT FWD DOOR CUTOUT LO??ER SILL INNER CHORD PIN 143T8204-L APPROX. AT STA 544. THE CORROSION WAS REMOVED PER 767-300 S·RM 51-10-02, GRID MAP WITH UT ACCOMPLISHED SEE FIGURE 1. THE MINIMUM DEEPEST POINT IS .096". THE DAMAGE IS OUT OF LIMITS PER 767-300 SRM 53-00-15 ALLOWABLE DAMAGE 1. BOEING WAS CONTACTED VIA SR 4-5876205052 WITH REPAIR PROPOSAL, AND PERMANENT REPAIR INSTRUCTIONS WERE APPROVED. AIRCRAFT TYPE MODEL: 767-338ER, TC: 30,476 &TH: 88,591:1 REPAIRED IAW ABX-REA-5331-65144-00.