As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
(CAN) DURING ROUTINE MAINTENANCE, IT WAS FOUND THAT BOTH LT AND RT ENGINE LP FUEL FILTER BOWLS HAD ARCHING DAMAGE. A REPLACEMENT HOUSING WAS ROBBED FROM A SERVICEABLE SPARE POWERPLANT BUT WAS FOUND WITH EVEN MORE SEVERE DAMAGE. ALL DAMAGED HOUSING REPLACED WITH NEW. (TC NR 20091215003)