As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
GRB - FLT 5738 - ON TAKEOFF, NR 1 ENGINE TORQUE DECREASED BY APPROXIMATELY 20 PERCENT. FURTHER POWER LEVEL INCREASES HAD NO EFFECT. MAINTENANCE CLEARED THE NR 1 EEC AND PERFORMED NUMEROUS POWER ASSURANCE RUNS IN TAKEOFF CONFIGURATION FOR 3 MINUTES EACH IAW P&W MM 72-00. ALL INDICATIONS NORMAL, WITH NO DEFECTS NOTED. (X)