What was found
KHA - FLT 432 - CVG TO MKE - ON APPROACH TO MKE, THE NR 2 ENGINE ACCESSORY GEARBOX LOW OIL PRESSURE LIGHT CAME ON. THE FLIGHT CREW SHUT DOWN THE NR 2 ENGINE AND DECLARED AN EMERGENCY. AN UNEVENTFUL LANDING WAS MADE AT MKE. INSPECTION FOUND OIL LEAKING FROM THE ACCESSORY GEARBOX AT THE GENERATOR DRIVE SEAL AND THE OIL QUANTITY WAS LOW. THE SEAL AND THE LOW PRESSURE WARNING SWITCH WERE REPLACED AND THE GEARBOX WAS SERVICED. OPERATIONAL CHECK WAS OK. THE AIRCRAFT WAS RETURNED TO SERVICE. (X)