As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
FUEL NOTED AT PRESSURE SWITCH OF APU DC FUEL PUMP AT LT FWD SPAR AREA. REPLACED APU PUMP SWITCH PER MM. NO FUEL LEAK FOUND AFTER RE-ACTIVATING PUMP AND FUEL PRESS SWITCH O-RING REPLACED. SWITCH WAS NOT FULLY SECURED UPON REMOVAL, SEAL WAS PINCHED.