As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
ON TAKEOFF FROM COF, NR 3 AND NR 4 ENGINE PRESSURE RATIO INDICATION SYSTEMS READ HIGH COMPARED TO N1 AND THE NR 1 AND NR 2 ENGINES. THE FLIGHT ELECTED TO RETURN TO THE FIELD. MAINTENANCE REMOVED INSECT DEBRIS FROM BOTH ENGINE PT2 SYSTEMS, ACCOMPLISHED A HIGH POWER ENGINE RUN SUCCESSFULLY AND RELEASED THE AIRCRAFT BACK TO SERVICE. (M)