As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AT FL 350 TAT -14 C , NR 2 EPR FLUCTUATED UP TO +.10 FUEL FLOW + 200 LBS FROM CRUISE SETTINGS WITH FRICTION LOCK SET CRUISE EPR INCREASED .02 OVER 10 MINUTE PERID. ALL OTHER ENGINES PARAMETERS APPEARED NORMAL. FLUCTUATIONS CONTINUED AT REDUCED POWER SETTINGS DURING DESCENT. REPLACED FUEL FLOW POWER SUPPLY, SERVICE FCU BURNER PRESSURE BELLOWS.