As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
FCA- ON FLIGHT 2271 NR 2 ENGINE FIRE WARNING ON GROUND. PULLED 'T' HANDLE AFTER ENGINE SHUTDOWN. DID NOT FIRE EXTINGUISHER. THERE WAS NO VISABLE SIGN OF A FIRE. FIRE WARNING WENT OUT AFTER 'T' HANDLE WAS PULLED. INSPECTED ENGINE NACELLE, NO EVIDENCE OF FIRE. TESTED NACELLE FIRE DETECTION SYSTEM IAW Q400 AMM 26-005 TASK 26-11-00-710-801. NO PARTS REPLACED. OPERATIONAL CHECKS GOOD. AIRCRAFT RETURNED TO SERVICE.