As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING C-CHECK INSPECTION DISCOVERED CHAFING DAMAGE ON THE UPPER EDGE OF THE NR 4 PYLON OUTBOARD SKIN. REPAIRED BY TRIMMING OUT THE DAMAGE, FABRICATING AND INSTALLING REPAIR STRAP AND EXTERNAL DOUBLER. REPAIRED IAW EVERGREEN AIR CENTER, ENGINEERING CHANGE/REPAIR AUTHORIZATION NR N303TW-54-003EAC. (M)