As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AFTER FUEL FILTER CHANGE FOUND FUEL PRESSURE SWITCH TO HAVE LEAK AT O-RING. REMOVED AND REPLACED O-RING ON FUEL PRESSURE SWITCH IAW AMM 73-34-01. LEAK CHECK GOOD FOR PRESSURE SWITCH. OPS CHECK GOOD LEAK CHECK GOOD FOR FUEL FILTER CHANGE LOG PAGE 894584 ITEM M5 IAW AMM 73-11-02.