As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AIRCRAFT WAS NOT GROUNDED: ON DECENT IDLE THRUST N1 % #1 ENGINE 31.7%, #2 ENGINE 71.7 OBVIOUS SPLIT, IN CRUISE N1 & N2 EQUAL. MAINTENANCE FOUND THE #2 ENGINE FUEL TEMPERATURE SENSOR NUTS 8 AND 9 LOOSE. RE-TORQUED NUTS AND ACCOMPLISHED A SATISFACTORY OPERATIONAL CHECK PER AMM 73-35-15.