AS A FLT OF 2 REFUELING ACFT WERE LEAVING THE HUNTRESS AR609 REFUELING AREA AS PER CLRNC THE FLT REQUESTED TO RETURN TO THE AREA. HUNTRESS CTL TOLD THE FLT TO STANDBY WHILE SUCCESSFULLY COORDINATED WITH ZBW. DURING THAT INTERVAL OF TIME OUTSIDE THE HUNTRESS AR609 REFUELING AREA THE FLC HAD A NEAR MISS IN ZBW AIRSPACE. THE FLT LEARNED AFTER COMPLETING THE MISSION AND LNDG OF THE NEAR MISS.

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TWO SHIP KC-10 FORMATION IN AR609 WORKING WITH HUNTRESS MIL RADAR. WE FINISHED REFUELING WITH 4 F-16'S AND PROCEEDED TOWARDS HANCOCK VOR. WE WERE CLRED DIRECT TO HANCOCK BY HUNTRESS RADAR. WE ASKED HUNTRESS IF WE COULD GO BACK INTO AR609; HE SAID STANDBY BECAUSE THEY HAD RELEASED THE AREA BACK TO BOSTON ARTCC. WE CONTINUED ON OUR LAST CLRNC BY HUNTRESS TOWARDS HANCOCK UNTIL HUNTRESS GAVE US A TURN TO 010 DEGS BACK TOWARDS AR609. WE WERE IN CONTACT THE WHOLE TIME WITH HUNTRESS. WE WERE INFORMED WHEN WE LANDED THAT ZBW RPTED A NEAR MISS BTWN OUR FORMATION AND A CIVILIAN ACFT. WE HAD MAINTAINED RADIO CONTACT WITH HUNTRESS THE WHOLE TIME AND COMPLIED WITH HUNTRESS'S INSTRUCTION. THERE APPEARS TO BE SOME MISCOM BTWN HUNTRESS AND BOSTON. THE PROX OF AR609 TO BOSTON'S AIRSPACE CREATES THE POTENTIAL FOR TFC CONFLICTS. A POSSIBLE SOLUTION IS TO MONITOR HUNTRESS AND BOSTON ARTCC WHILE ESTABLISHED IN AR609. A POSITIVE HDOF TO BOSTON NEEDS TO BE MADE WHEN WORKING ONLY WITH HUNTRESS. SUPPLEMENTAL INFO FROM ACN 328428: WE WERE INFORMED THAT ZBW HAD RPTED A NEAR MISS BTWN OUR FORMATION AND A CIVILIAN AIRLINER.