Narrative:

Just prior to reaching our second fix on track a; we were contacted by an air carrier Y aircraft to contact scottish center. We did and were told that had been try to get a hold of us for some time. We never heard them. They asked for an explanation and having not heard them; I am afraid; did have a good explanation. There were multiple similar call signs also in the area. We were at crossing altitude and speed with our clearance. We were then told to contact shanwick where we got out HF frequencys and continued. No traffic or altitude issues were noted. I did make the mistake of not having the volume on the second radio with 121.5 turned up loud enough. So when they tried to reach us there; we could not hear them. There were several calls from the back of the airplane and perhaps with all this we missed 2 calls.

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Original NASA ASRS Text

Title: A B777 IN INTL AIRSPACE MISSED SEVERAL RADIO CALLS FROM SCOTTISH CTL.

Narrative: JUST PRIOR TO REACHING OUR SECOND FIX ON TRACK A; WE WERE CONTACTED BY AN ACR Y ACFT TO CONTACT SCOTTISH CTR. WE DID AND WERE TOLD THAT HAD BEEN TRY TO GET A HOLD OF US FOR SOME TIME. WE NEVER HEARD THEM. THEY ASKED FOR AN EXPLANATION AND HAVING NOT HEARD THEM; I AM AFRAID; DID HAVE A GOOD EXPLANATION. THERE WERE MULTIPLE SIMILAR CALL SIGNS ALSO IN THE AREA. WE WERE AT XING ALT AND SPD WITH OUR CLRNC. WE WERE THEN TOLD TO CONTACT SHANWICK WHERE WE GOT OUT HF FREQS AND CONTINUED. NO TFC OR ALT ISSUES WERE NOTED. I DID MAKE THE MISTAKE OF NOT HAVING THE VOLUME ON THE SECOND RADIO WITH 121.5 TURNED UP LOUD ENOUGH. SO WHEN THEY TRIED TO REACH US THERE; WE COULD NOT HEAR THEM. THERE WERE SEVERAL CALLS FROM THE BACK OF THE AIRPLANE AND PERHAPS WITH ALL THIS WE MISSED 2 CALLS.

Data retrieved from NASA's ASRS site as of January 2009 and automatically converted to unabbreviated mixed upper/lowercase text. This report is for informational purposes with no guarantee of accuracy. See NASA's ASRS site for official report.