As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
THE NR 1 AFT FUEL BOOST PUMP WIRING WAS FOUND CHAFED THROUGH PLASTIC SHEATHING AND INTO WIRING INSULATION WITH BARE WIRING EXPOSED IN THREE AREAS DURING INSPECTION MANDATED BY AD99-21-15 ON UAL JIC 2S124. REPLACED WIRE ASSEMBLY AS REQUIRED PER AD 99-21-15. CONFIRMED CHAFING OF THE TEFLON SLEEVING AND THE OUTER INSULATION OF THE BLUE WIRE WITH NO VISIBLE EXPOSED (BARE) CENTER CONDUCTOR