As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
APU B-FIRE DETECTION FAULT LIGHT, AND APU FIRE WARNING LIGHT ILLUMINATED INTERMITTENTLY. COM PROCEDURE ACCOMPLISHED. AIRCRAFT CONTINUED AND LANDED WITHOUT INCIDENT. LAX COMPLIED WITH MEL. NRT MAINTENANCE REPLACED APU LOWER SENSING ELEMENT 13SEP05. OPERATIONAL CHECK GOOD.