As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING MTC SETUP INSPECTION OF NR 1 ENG S/N 727524 AND NR 2 ENG S/N 724314, FOUND EEC CONTROL WIRING CHAFFED THROUGH INSULATION ONLY, AT CLAMPS LOCATED AT HYD PRESS LINE MOUNT POINT IN PYLONS UNDER PANELS 432FR AND 442FL. MADE APPROVED REPAIR PER BOEING WIRING STD. PRACTICE MANUAL.