As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
FOUND LEFT AFT CHILLER WIRE HARNESS BURNT THROUGH DUE CHAFFING ON CHILLER RACK FRAME. SECURED HARNESS ASSY AND PULLED C/B'S. VERIFIED NO POWER TO HARNESS ASSY. WILL NEED WIRE HARNESS W284 REF IPC 25-33-02-01. ALSO WILL NEED DISCONNECT D2650DPN 014206555. TMC NOTIFIED FOR POSSIBLE ENGINEERING REROUTING/REPAIR OF HARNESS. FWD TO MCO.