What was found
DURING DESCENT, FELT WHAT WAS LIKE WAKE TURBULANCE. UPON POST FLIGHT FOUND TOP OF RT ENGINE COWL MISSING. PERFORMED INSPECTIONS OF ENGINE, PYLON, AND EMPENNAGE AE, REF L/P'S 667135 AND 667141, NO FAULTS NOTED. INSTALLED NEW COWL IPC 71--14-01 ITEM 5 IAW AMM 71-14-01. OK FOR SERVICE.