As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AFTER LANDING BY MOVING THE APU SWITCH IN THE ON POSITION WE RECEIVED A APU FIRE WARNING MOMENTARILY. APU WAS NOT STARTED. AIRCRAFT WAS STOPPED ON TAXI WAY AND SHUT DOWN AND INSPECTED BY FIRE AND RESCUE. NO FIRE DETECTED. APU CONSIDERED INOP. CORRECTIVE ACTION: PERFORMED OPS CHECK OF THE APU FIRE PROTECTION CIRCUIT OPS CHECK GOOD. WORK PERFORMED IN REF TO CE-680A AMM 26-15-00. OSD: 1/27/2025