As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
TPA INFLIGHT JAX-DFW. INTERMITTENT FIRE INDICATIONS ON LT ENGINE. BRINGING LT THROTTLE BACK SILENCED WARNING. EMERGENCY DECLARED FLIGHT DIVERTED TPA LANDED WITHOUT INCIDENT. AIRCRAFT REMOVED FROM SERVICE. REPLACED RUPTURED LT COWL ANTI ICING DUCT. SYSTEM GROUND CHECKED NORMAL OPERATION CLOSED.