As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
IN ICING CONDITIONS UNTIL 12,000 FT LEAVING FL 18.0 ENG 2 RPM LOW. ILLUMINATED FUEL FLOW NR 2 WENT TO 70 N2 RPM WAS 20 PERCENT, SELECTED ENGINE IGN OVRD ON AND ENGINE RECOVERED. ACCOMPLISHED NR 2 ENGINE BOROSCOPE AS A PRECAUTION. ACFT OK FOR SERVICE.