As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
LEFT ENGINE FIRE LOOP 2 STATUS MESSAGE ON SHUTDOWN. REMOVED CONNECTOR D4154, VISUAL INSPECTION OF PINS & SOCKETS CHECKED OK. INTEGRITY OF PINS AND SOCKETS CHECKED OK. CLEANED CONNECTOR & REINSTALLED CONNECTOR. ENGINE RAN. ENGINE FIRE DETECT SYSTEM OPS GOOD AFTER 30 MIN ENGINE RUN/TAXI.