As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
FLT 3158 - EWR - CREW REPORTED THAT ENGINE NR 1 WOULD NOT SHUT-DOWN, E1 NO DISPATCH ON EICS. CREW USED T-HANDLE TO SHUT DOWN THE ENGINE. EWR MX REMOVED AND REPLACED POWER PLANT CONTROL MODULE AND PERFORMED OPERATIONAL CHECK SUCCESSFULLY. ACFT WAS APPROVED TO RETURN TO SERVICE.