As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
EWR - FLT 3228 - CREW REPORTED WHILE OPERATING AIRCRAFT IN HOTEL MODE (PROP BRAKE-ON), NACELLE OVERHEAT AND FIRE WARNING ON NR 2 ENGINE. PILOT DISCHARGED BOTH BOTTLES AND EVACUATED AIRCRAFT. MAINTENANCE FOUND, WITH AIRCRAFT OPERATING IN HOTEL MODE AND A TAIL WIND THE OVERHEAT SENSOR WAS SET OFF CAUSING THE FIRE WARNINGS. MAINTENANCE REMOVED AND REPLACED THE FIREBOTTLES AND TESTED THE SYSTEM GOOD. (M)