Narrative:

Departed teb IFR for bdl in instrument WX. Departure cleared us from 3000 ft to 4000 ft and gave us a new heading and frequency. My co-captain (chief pilot) was the PNF, contacted the departure controller. We advised we were leveling at 4000 ft. Then we were given a 270 degree heading and climb to 8000 ft for a short cut. My co-captain read it back and I started a turn and climb. After leaving 4000 ft the controller came on and asked if we were on frequency. My co-captain responded we were 270 degree heading climbing to 8000 ft. The controller advised us we had someone else's clearance and told us to descend to 7000 ft and turn to 040 degrees. I feel that frequency congestion and the controller's non standard terminology ('short cut' instead of a fix) were factors in this event. Supplemental information from acn 475030: it was my belief that we had been cleared to climb to 8000 ft and that the controller was responding to my call in. Either he misidented our call sign or vice versa.

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Original NASA ASRS Text

Title: A C560 FLC ACCEPT A CLRNC FOR ANOTHER ACFT WHILE UNDER RADAR VECTORING NW OF TEB, NJ.

Narrative: DEPARTED TEB IFR FOR BDL IN INST WX. DEP CLRED US FROM 3000 FT TO 4000 FT AND GAVE US A NEW HEADING AND FREQ. MY CO-CAPT (CHIEF PLT) WAS THE PNF, CONTACTED THE DEP CTLR. WE ADVISED WE WERE LEVELING AT 4000 FT. THEN WE WERE GIVEN A 270 DEG HDG AND CLB TO 8000 FT FOR A SHORT CUT. MY CO-CAPT READ IT BACK AND I STARTED A TURN AND CLB. AFTER LEAVING 4000 FT THE CTLR CAME ON AND ASKED IF WE WERE ON FREQ. MY CO-CAPT RESPONDED WE WERE 270 DEG HDG CLBING TO 8000 FT. THE CTLR ADVISED US WE HAD SOMEONE ELSE'S CLRNC AND TOLD US TO DSND TO 7000 FT AND TURN TO 040 DEGS. I FEEL THAT FREQ CONGESTION AND THE CTLR'S NON STANDARD TERMINOLOGY ('SHORT CUT' INSTEAD OF A FIX) WERE FACTORS IN THIS EVENT. SUPPLEMENTAL INFO FROM ACN 475030: IT WAS MY BELIEF THAT WE HAD BEEN CLRED TO CLB TO 8000 FT AND THAT THE CTLR WAS RESPONDING TO MY CALL IN. EITHER HE MISIDENTED OUR CALL SIGN OR VICE VERSA.

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.