As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
NR 4 PYLON MOUNT YOKE HAS THE PYLON DRAIN LINE CHAFING ON ITS RIGHT SIDE TOP SURFACE. REMOVED NR 4 PYLON ENGINE FRONT MOUNT YOKE. INSPECTED AND FOUND CHAFEAGE TO BE WITHIN 146 SRM 54-50-41 LIMITS. BLENDED AREA AND REINSTALLED MOUNT YOKE IAW MM 71-10-11. (M)