ENG DISINTEGRATED TAKING OUT THE HYD SYS; THE THRUST REVERSER; AND THE DRAG CHUTE AND TAIL CONE SO THAT ON LNDG WHILE ATTEMPTING TO TURN ONTO A TXWY THE ACFT WENT OUT INTO THE GRASS.

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WE TOOK OFF FROM LAREDO AT APPROX XA45Z WITH DALLAS LOVE AS OUR INTENDED DEST. ABOUT 50 MI FROM LAREDO AND FL200 WE HEARD A NOISE; THE R ENG SUDDENLY STOPPED AND THE ACFT YAWED TO THE R AND BACK AGAIN VERY RAPIDLY. WE CHKED THE REST OF SYS AND EVERYTHING SEEMED NORMAL. WE REQUESTED FROM ZHU TO MAINTAIN 17000 FT AND TO LAND IN SAN ANTONIO INTL BECAUSE OF AN ENG PROB. WE THEN SAW WE HAD LOST HYD PRESSURE. THEN WE CHKED IF THE ELECTRIC HYD PUMP WAS GOING TO WORK BUT IT DID NOT. WE CONTINUED WITH NORMAL AND EMER CHKLISTS TO LAND WITH 1 ENG AND LOSS OF HYD PRESSURE. WE MADE SURE THE LNDG GEAR WAS DOWN AND I BRIEFED COPLT BEFORE LNDG. WE WERE CLRED BY SAT TWR TO LAND ON RWY 30L. WE TRIED FIRST EMER AIR PRESSURE; SECOND THE CHUTE AND THIRD THRUST REVERSER; NONE WORKED. UPON ATTEMPTING TO USE THE THRUST REVERSER; THE ACFT STARTED TO ACCELERATE TO THE R AND I IMMEDIATELY PUT THE LEVER BACK TO IDLE AND ENGAGED NOSEWHEEL STEERING. WE USED ALMOST THE ENTIRE RWY AND ATTEMPTED TO EXIT THE RWY AT TXWY K. WE WERE UNABLE TO STAY ON THE TXWY AND CAME TO A STOP A FEW YARDS BEYOND THE TXWY IN THE GRASS BTWN TXWY K AND THE END OF THE RWY. WE WERE ASSISTED BY THE FIRE DEPT AND THE POLICE. AFTER EXITING THE ACFT WE DISCOVERED THAT PARTS OF THE ENG HAD COME OUT THROUGH THE NACELLE CAUSING CONSIDERABLE DAMAGE; INCLUDING CUTTING A HYD LINE; AND LOSS OF THE TAIL CONE DOOR AND PARACHUTE.