As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
APU FIRE INDICATION. AS PER QRH FIRE BOTTLE WAS DISCHARGED. APU OFF - 35,000 FEET. T/S PER MM REF 26-15-00. FOUND M515 AND M334 RESISTANCE OUT OF RANGE. REPLACED SAME PER MM REF 26-15-14. FOUND HIGH RESISTANCE TO GROUND AT CONN D982. REPLACED SAME PER SWP 20-62-16. SYS OPS NORM.