What was found
ON DECENT, NR 3 ENGINE BECAME UNCONTROLLABLE, A/T OFF OR A/T ON, ENGINE SURGE +/- 20 PERCENT ALL INDICATION. ENGINE SHUTDOWN PERFORMED AND WINDMILLED APPROX 20 MINUTES. R & R NR 3 ENGINE CIT SENSOR, REF AMM 73-20-02-2. INSTALLED NR 3 ENGINE MEC AND FUEL PUMP REF AMM 73-20-01-2 AND 73-12-02-2. VSV RIG CHECKED GOOD. PERFORMED IDLE RUN AND LEAK CHECK IAW JRH. NO LEAKS NOTED. PERFORMED GROUND IDLE, FLIGHT IDLE AND MAX POWER ASSURANCE IAW JRH CHAPTERS 4, 5 AND 7. ALL CHECKS WITHIN PARAMETERS. OK FOR SERVICE.