What was found
FUSELAGE / C1 DOOR OPENING / LOWER SILL AND FS 620 FRAME : CORROSION REPAIR THE OUTER CHORD OF THE C1 DOOR OPENING LOWER SILL WAS FOUND DAMAGED DUE TO CORROSION. TO FACILITATE REPLACEMENT OF THE CHORD, THE FS 620 FRAME OUTER CHORD AND WEB WERE CUT BETWEEN STRINGERS 25R & 26R AND LOWER ENDS REMOVED. A NEW SILL CHORD WAS INSTALLED AND THE FRAME CHORD AND WEB SPLICED BACK IN PLACE WITH ALUMINUM REPAIR DOUBLERS AND ANGLES PER ER/A 383668-14, REV A.