What was found
2 HRS AFTER TAKEOFF, NR 2 ENGINE ROLLED BACK. RPM AND EGT ROLLEDBACK, PERFORMED ENGI 2 SHUTDOWN IN FLIGHT. CHECKED NR 2 EEC A & B, NO CURRENT FAULTS. CARRIED OUT DETAIL AND WINDMILLING INSPECTION, CHECKED ALL MAGNETIC CHIP DETECTORS, NO ABNORMALITIES FOUND. FOR PRECAUTIONARY R & R NR 2 ENGINE MAIN OIL FILTER IAW AMM 79-22-05-4-2, CARRIED OUT ENGINE RAN ON NR 2 AND NR 3 ENGINE ALL PARAMETERS COMPARED ARE WITHIN NORMAL LIMIT. ACFT OK FOR SERVICE.