Narrative:

This was a situation in which I'm not sure we deviated from a clearance but I felt uneasy due to the circumstances. I am flying new aircraft. This day I was flying aircraft A1 for the first time. We were on a maintenance flight and had been cleared down to 4000 ft out of 9500 ft in a descent. At 6500 ft, approach reclred us to 5000 ft. They had done this to us a couple of times during the arrival due to our accelerated descent rate (4000-6000 FPM). I didn't think much about it until I heard 'A2' at 4000 ft to the same airport. I then wondered if I had picked up their clearance to 4000 ft and not ours. No conflict and approach didn't say anything so I probably am just paranoid. But it did make me pay more attention to the call signs.

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Original NASA ASRS Text

Title: A CPR FO RPT ON POSSIBLY ACCEPTING ANOTHER COMPANY ACFT'S TAIL NUMBER IN THE CLRNC ISSUED TO 4000 FT E OF GVT, TX.

Narrative: THIS WAS A SIT IN WHICH I'M NOT SURE WE DEVIATED FROM A CLRNC BUT I FELT UNEASY DUE TO THE CIRCUMSTANCES. I AM FLYING NEW ACFT. THIS DAY I WAS FLYING ACFT A1 FOR THE FIRST TIME. WE WERE ON A MAINT FLT AND HAD BEEN CLRED DOWN TO 4000 FT OUT OF 9500 FT IN A DSCNT. AT 6500 FT, APCH RECLRED US TO 5000 FT. THEY HAD DONE THIS TO US A COUPLE OF TIMES DURING THE ARR DUE TO OUR ACCELERATED DSCNT RATE (4000-6000 FPM). I DIDN'T THINK MUCH ABOUT IT UNTIL I HEARD 'A2' AT 4000 FT TO THE SAME ARPT. I THEN WONDERED IF I HAD PICKED UP THEIR CLRNC TO 4000 FT AND NOT OURS. NO CONFLICT AND APCH DIDN'T SAY ANYTHING SO I PROBABLY AM JUST PARANOID. BUT IT DID MAKE ME PAY MORE ATTN TO THE CALL SIGNS.

Data retrieved from NASA's ASRS site as of July 2007 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.