As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
UNSCHEDULED MAINTENANCE: RED BAGGAGE FIRE WARNING AT FL 430. DECLARED EMERGENCY AND RAN QRH. BLEW BOTH BOTTLES AND RED BAGGAGE FIRE INDICATION STAYED ON FOR ABOUT 10 MINUTES. LANDED WITHOUT INCIDENT AND FIRE TRUCKS MET PLANE. THEY SEEMED TO THINK THERE WAS AN ELECTRICAL FIRE OF SOME SORT WITH RELATED STAIN. NO FIRE WAS VISABLE. REPLACED APU FIRE BOTTLE. OPS CHECK GOOD. IAW AMM 26-25-05