As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
LAX INFLIGHT T285/20SEP. AT ABOUT 18000 FT ACFT YAWED TO THE LT AND ENGINE INSTRUMENTS SHOWED REDUCED POWER ON NR 1 ENGINE. FUEL FLOW WAS 3000 LBS. LESS ON NR 1 ENGINE. NR 1 ENGINE WOULD NOT PRODUCE FULL POWER WITH LT THROTTLE PUSHED TOWARDS FULL FORWARD. CREW COULD NOT CONTROL YAW. RETURNED TO LAX AND LANDED WITHOUT INCIDENT. REPLACED FUEL FLOW GOVERNOR FOR NR 1 ENGINE. SYSTEM GROUND CHECKED NORMAL OPS.