As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
APPROX .375 INCH DIAM ARCING BURN-THROUGH DAMAGE TO NR 2 PYLON FWD MID SPAR WEB AT CORNER OF LIGHTENING HOLE. DAMAGE WAS DUE TO ARCING BURN-THROUGH OF WORN GENERATOR FEED CABLE TO NR 2 PYLON FWD MID SPAR WEB (P/N: 311U4156-1). A WEB DOUBLER REPAIR ADAPTED FROM SRM 51-70-13 WAS INSTALLED PRIOR TO FURTHER FLIGHT AND A NEW GENERATOR FEEDER CABLE WAS INSTALLED.