As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
UPON TRIAL, APU FAULT LIGHT ILLUMINATED AT 380 0AT -54C FAULT LIGHT WENT OUT AFTER A MIN. ACFT GROUNDED. TROUBLESHOT APU REF FIM 49-30-803, STEP H, REPLACED APU FUEL FLOW DIVIDER REF AMM 49-31-15-000-801 & 49-31-15-400-801. NO LEAKS NOTED. FAULT MSG 49-31010 DOES NOT SHOW CDU AFTER BITE TEST.