As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING DE-ICE AFT LOWER CARGO FIRE WARNING AND BELL, DISPLAY READ AFT FIRE. VISUALLY INSPECTED AFT LOWER CARGO AREA, ALL CLEAR. NO DEFECTS. PERFORMED SYSTEMS CHECK OF LOWER AFT PIT FIRE DETECTION SYSTEM. OPS CHECK GOOD IAW SECURE-A-PLANE TECHNOLOGY MANUAL. A/C OK FOR SERVICE.