What was found
(CAN) A/C EXPERIENCED A THRUST REVERSER UNLOCK IN FLIGHT AT A CRUISE FLIGHT LEVEL OF 16000 FEET WITH AN APPROXIMATE SPEED OF 280 KNOTS. A SMALL VIBRATION IN THE AIRFRAME WAS FELT BY THE CREW PRIOR TO RECEIVING THE (REVERSER UNLOCK) MSG, FOLLOWED BY A LOUD BANG, WITH THE AIRCRAFT PITCHING UP AND ROLLING LT. THE CREW STOWED THE REVERSER AND VIBRATIONS SUBSEQUENTLY STOPPED. UPON LANDING INTO ORD UNDER A DECLARED EMERGENCY, IT WAS NOTE THAT T/R TRANSLATING COWLS WERE MISSING, ALONG WITH THE STRUCTURAL DAMAGE TO THE VERTICAL AND HORIZONTAL STAB. LIST OF AFFECTED COMPONENT TO FOLLOW. (TC NR 20070413001)