A LEARJET CREW OVERSHOOTS THEIR TURN TO MARIT INTXN AND EXCEEDS THE 250 KT SPD RESTR AT THAT INTXN NW OF IAH; TX.

Narrative

WHILE FLYING AN APPROX 030 DEG COURSE TO TNV VOR; WE RECEIVED A CLRNC FROM ZHU TO FLY DIRECT TO MARIT INTXN; THEN PROCEED ON THE STRUK 8 STAR AND CONTACT HOUSTON APCH. WE ATTEMPTED TO PROGRAM OUR GPS TO MARIT INTXN. THE INITIAL ATTEMPT FAILED AND WE AGAIN ATTEMPTED TO PROGRAM THE GPS TO THE INTXN. THIS ATTEMPT WAS SUCCESSFUL. THE TOTAL TIME REQUIRED FOR THE PROGRAMMING PROC WAS APPROX 1 - 1 1/2 MINS. AT THAT TIME WE REALIZED THAT THE CLRNC TO MARIT HAD BEEN ISSUED VERY CLOSE TO THE INTXN AND WE HAD ACTUALLY FLOWN PAST THE INTXN. WE STARTED A HARD R TURN TO ESTABLISH A DIRECT COURSE TO THE INTXN. AT THAT TIME HOUSTON APCH ISSUED INSTRUCTIONS TO TURN R TO A HDG OF 180 DEGS TO INTERCEPT THE STRUK 8 ARR (127 DEG RADIAL TNV) AND REQUESTED OUR INDICATED AIRSPD. WE RPTED OUR SPD AS 300 KTS. APCH INQUIRED IF ZHU HAD ISSUED A 250 KT AIRSPD RESTR. WE HAD NOT BEEN ISSUED AN ASSIGNED SPD FROM ZHU; HOWEVER; THE PUBLISHED SPD AT MARIT INTXN IS 250 KTS. HOUSTON APCH WAS VERY CONCERNED ABOUT OUR EXCESSIVE SPD. AS STATED ABOVE; THE PUBLISHED SPD AT MARIT IS 250 KTS. DUE TO THE DELAY IN PROGRAMMING THE GPS AND THE FACT THAT THE 'DIRECT MARIT CLRNC' WAS ISSUED VERY CLOSE TO THE INTXN; WE NEVER ACTUALLY CROSSED MARIT. WE KNEW THE PUBLISHED SPD AT MARIT WAS 250 KTS AND SHOULD HAVE BEGUN SLOWING SOONER. WE SHOULD HAVE BEEN BETTER ORIENTED AS TO OUR POS FROM MARIT. DUE TO THE FACT WE WERE VERY CLOSE TO THE FIX WHEN THE CLRNC WAS ISSUED IT WOULD HAVE BEEN HELPFUL IF ZHU WOULD HAVE ISSUED AN INITIAL HDG TO MARIT AND REQUESTED WE REDUCE OUR SPD PRIOR TO HANDING US OVER TO HOUSTON APCH.