CPR MDT UNAUTH LNDG AT BOS CAUSES ACR GO AROUND.

Narrative

WHILE ON APCH TO THE ILS 22L AT BOS WE WERE IN CONTINUOUS RADIO CONTACT WITH THE APCH CTLR. WE WERE GIVEN HDGS TO INTERCEPT THE FINAL APCH PATH AND ALSO TO HOLD SHORT OF AN INTERSECTING RWY (27). WE ACKNOWLEDGED ALL TRANSMISSIONS TO CTLRS; PROVIDED ADEQUATE SEP BTWN OURSELVES AND THE WDB WE WERE FOLLOWING. DURING THIS PERIOD; TFC WAS VERY HEAVY AND CTLRS WERE DEPARTING AND LNDG TFC ON DIFFERENT INTERSECTING RWYS. WE WERE TOLD TO HOLD SHORT OF RWY 27 AT LEAST 3 TIMES; EACH TIME WE RESPONDED AND READ BACK THE DIRECTIVE. UPON LNDG WE DID HOLD SHORT OF RWY 27 BUT DID NOT MAKE THE SECOND HIGH SPD TURNOFF WE HAD WANTED TO (WE WERE NOT TOLD TO DO THIS HOWEVER). AT THIS TIME THE TWR CTLR STARTED SAYING WE WERE NO RADIO AND WE CAUSED 3 OTHER AIRPLANES TO GO-AROUND. AFTER LNDG WE DID NOT MOVE HOPING TO GET INSTRUCTION FROM THE CTLR (TWR). I TRIED TO CALL HIM BUT ALL MY ATTEMPTS WERE STEPPED ON BY OTHER CTLR CONVERSATION OR PLT CONVERSATION. FINALLY WE WERE INSTRUCTED TO DO A '180' AND CLR THE RWY; I BELIEVE THE PROB MAY HAVE BEEN ELIMINATED SOMEWHAT BY BETTER APCH CTL AND TWR COM. AN ACR PLT BEHIND US HAD TO GO-AROUND; BUT THAT WAS PROBABLE ANYWAY BECAUSE WE DID NOT HAVE INSTRUCTION WHILE ON THE RWY AS TO WHAT TO DO. I SINCERELY REGRET THIS OCCURRENCE BUT DO NOT FEEL WE AS A CREW DID ANYTHING OUT OF LINE. CALLBACK CONVERSATION WITH RPTR REVEALED FOLLOWING INFO. THE F/O IS SURE HE DID NOT CALL THE TWR UNTIL AFTER LNDG. THE INCIDENT IS STILL WITH THE BOS FSDO AND THE FLT CREW HAS NOT HEARD FROM THEM YET. F/O SAYS HE WAS TALKING TO THE APCH CTLR UNTIL CLOSE IN AND THINKS THERE COULD HAVE BEEN BETTER COORD BTWN THE TWR AND TRACON. SAYS HE TRIED TO GET THE PIC PF TO MAKE THE SECOND HIGH SPD BUT HE WAS SO INTENT ON A SMOOTH LNDG THAT HE LET THE ACFT FLOAT TOO FAR.