As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING GROUND RUN CHECKS ON AIRCRAFT FOLLOWING AN ENGINE MODULE CHANGE, AN ENGINE FIRE OCCURRED AFTER ENGINE SHUTDOWN. FIRE MASTER CAUTION WAS ILLUMINATED AFTER SHUTDOWN THAT THE PILOT AND MECHANIC TO SHUT DOWN THE NR 2 ENGINE. POST INCIDENT INSPECTION REVEALED THAT THE MO1 IS SEIZED.