As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
FLT # 1097, BOS-ATL (DIVERTED TO BNA). UPON DESCENT L ENG OPER DEGRADED ON EICAS ECL FOLLOWED AVOIDED ICING CONDITIONS ENGINE OPERATED NORMALLY WITH AT OFF; AFTER RESET PERFORMED OPERATIONAL TEST OF LH ENG EEC IAW BD500-A-373-21-00-00-AAA-320A-A. TEST OK. NO FAULT NOTED. A/C OK FOR SERVICE