As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
INSPECTION TYPE:N/A AT TOP OF DESCENT, LWR CARGO FIRE LIGHT ILLUMINATED. MX DISPLAY READ "AFT D FIRE". ACCOPM CKLIST PROCEDURE, FIRE LIGHT EXTINGUISHED AND MX DISPLAY READ "AFT D INOP". MX LIGHT ALSO ILLUMINATED WHEN AFT D INOP MSG APPEARED. FOUND MX FAULT AD2318 AND AD3411 AFT CARGO PIT. AFT D INOP MSG ON CONTROL. GREEN SYST OK LIGHT ON. DEFER AFT CARGO COMP PER 26-10 FIRE DET INOP AFT PIT D.