What was found
IN CRUISE FLIGHT FROM DWT TO TYS, THE FLIGHT CREW DETECTED A VIBRATION COMING FROM THE NOSE AREA OF THE AIRCRAFT. NO ABNORMAL INDICATIONS WERE DISPLAYED ON ECAIS. THE FLIGHT ATTENDANT REPORTED THAT THERE WAS NO UNUSUAL NOISE OR VIBRATION IN THE CABIN. THE FLIGHT CREW ELECTED TO CONTINUE THE APPROACH INTO TYS, A MAJOR REPAIR BASE FOR THE AIRLINE. ATC WAS NOTIFIED AND AN OTHERWISE UNEVENTFUL APPROACH AND LANDING WAS MADE AT TYSON-MCGEE. MAINTENANCE DISCOVERED THE AIR DRIVEN GENERATOR PARTIALLY DEPLOYED. THE ADG WAS INSPECTED, TESTED AND RESTOWED.