As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
FLT 174 - STL - DURING CRUISE NR 2 ENGINE, S/N 4614, WAS RETARDED DURING MINOR TURBULENCE AND WOULD NOT RETURN TO NORMAL EPR. REMOVED AND REPLACED NR 2 ENGINE FUEL FILTER, MFG P/N 7583149, SUMPED TANKS AND ADJUSTED MINIMUM FLT IDLES. OPERATIONAL CHECKS AND ENGINE RUN NORMAL. (M)