As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
FIRE WARNING MASTER LIGHTS ILLUMINATED, INTERMITTENTLY, WITH AUDIO BELL. NO OTHER INDICATIONS. REMOVED AND REPLACED R97 RELAY AND M438, REF WIRING DIAGRAM MANUAL 49-41-01 PAGE 3. NEEDS OPS CHECKS. REF MM 26-15-000, OP CHECK APE FIRE SYSTEM. CHECKS OK.