What was found
DISCREPANCY: AT TOP OF DESCENT, AUTO-THROTTLES MOVED THROTTLES TO IDLE, NR 1 ENGINE MADE "POP" NOISE AND SHUTDOWN. PRIOR TO TOP OF DESCENT, ENGINE INDICATIONS WERE NORMAL. PERFORMED ENGINE FAILURE QRH. WAS ABLE TO RESTART ENGINE AND PERFORM NORMAL LANDING. SUBMITTED ENGINE TREND REPORT IN FLIGHT. CORRECTIVE ACTION: PERFORMED TROUBLESHOOTING IAW AMM 71-00-42. REMOVED AND REPLACED NR 1 ENGINE FUEL FILTERS IAW AMM 73-11-02, NO FINDINGS BORESCOPE OF NR 1 ENG ACCOMPLISHED IAW AMM 72-00-00 STAGES 1, 3, AND 8 BY BSI. RESULTS ON FILE. REMOVE AND REPLACE NR 1 ENG MEC IAW AMM 73-21-01-401, NO LEAKS FOUND ON MEC OR NR 1 ENG FUEL FILTERS. ACCOMPLISHED IDLE CHECKS, ACCEL/DECEL CHECK IAW AMM 71-00, OK FOR SERVICE AT THIS TIME.