As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
A/C 938 WAS IN THE PROCESS OF HAVING A NR 2 ENGINE CHANGE. AT THAT TIME THE AIRCRAFT CASE DRAIN FILTERS WERE ALSO CHANGED. THE MECHANIC REPLACING THE FILTERS NOTICED A CHAFED AREA AND BURNT SPOT ON THE CASE DRAIN FILTER HOUSING CAUSED BY THE NR 2 ENGINE GENERATOR FEEDER CABLES. THE FILTER HOUSING WAS REPLACED ALONG WITH THE GENERATOR FEEDER CABLES.