As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
APU WILL NOT START. COUT RESISTANCE CHK OF FUEL CLUSTER UNIT PIN 9 AND 10 FUEL CLUSTER RECEPTACLE FOUND MORE THAN 1000 OHMS (32000 OHMS) SUSPECT FUEL CLUSTER. APU FUEL CLUSTER REPLACED. ACCOMPLISHED SUCCESSFUL START AT ALTITUDE. CREW COMMENTS: APU STARTED NORMALLY AT FL 340 AND OPERATED NORMALLY FOR 5 MIN. APU OPERATIONS NOW OKAY.