FLC OF A B767 FAILED TO MAKE ALT XING RESTR AND SPD RESTR DURING DSCNT ON STAR ARR.

Narrative

WHILE FLYING AT FL350 CHINN 3 ARR INTO SEATTLE; CTR TOLD US TO DSND TO FL240; PLT'S DISCRETION AFTER FL310. AS WE WERE NEAR COMPUTED TOP OF DSCNT POINT FOR EXPECTED CLRNC LIMIT AT SNOWY INTXN (12000 FT/250 KT); WE CONTINUED DSCNT TO FL240. THEN CLRED TO CROSS SNOWY AT 12000 FT/250 KTS. WITH VNAV ENGAGED; ACFT INCREASED SPD TO COMPUTED 327 KIAS FOR DSCNT. AT APPROX FL200; APCH CTL TOLD US TO SLOW TO 300 KIAS (SLOW DOWN WHILE DSNDING). AFTER MANUALLY SETTING 300 KIAS IN AUTOPLT WINDOW; ACFT BEGAN TO LEVEL OFF TO SLOW DOWN. IMMEDIATELY GREEN END DSCNT ARC ON HSI INDICATED WE WOULD BE FAST OR HIGH AT SNOWY. AS WE STARTED TO CONTACT APCH TO ADVISE WE MIGHT NOT MAKE THE 12000 FT/250 KT RESTR AT SNOWY (PASSING THROUGH FL180); APCH ASKED IF WE WOULD MAKE THE RESTR. WE INFORMED APCH WE WOULD BE HIGH ON AIRSPD; ALSO WE COULD MAKE 13000 FT ON AIRSPD OF 250 KTS. WE WERE INFORMED NOT TO ACCELERATE TO MAKE THE ALT; POSSIBLY DUE TO TFC AHEAD OF US AT SNOWY. WE WERE GIVEN A SHORT VECTOR S FOR SPACING THEN CLRED US DIRECT TO SNOWY. ABOUT 1 MI FROM SNOWY; WE WERE ASKED OUR SPD. WE WERE AT 270 KIAS AND SLOWING. WE ACTUALLY CROSSED SNOWY AT 12000 FT/250 KT. I AM SUBMITTING THIS BECAUSE AFTER WE CROSSED SNOWY THE CTLR TOLD US THAT WE MISSED BOTH RESTRS OF 12000/250 KTS. WE ACKNOWLEDGE OF BEING SLIGHT; FAST (260 KT); BUT ON ALT. WHEN ACFT LEVELED OFF WHEN DIRECTED TO SLOW TO 300 KIAS; WE MADE EVERY EFFORT TO MAINTAIN TRACK AND COMPLY. OUR ONLY OPTION WAS TO USE FULL SPD BRAKES. WE ALSO HAD AN 18 KT TAILWIND WHICH MADE THE SIT WORSE.