Narrative:

We were on an air ambulance flight from alb to fxe. We were cleared direct to fxe approximately 20 mins after takeoff from albany, ny. We were in the aircraft approximately 2 hours 15 mins when we were told (by ZMA) to turn left to 140 degrees during the descent from 10000 ft to 11000 ft (we had been on approximately a 200 degree bearing direct to fxe at the time) and intercept the mrlin 2 arrival to fxe. The arrival is: intercept the 200 degree bearing to andrew NDB. Because of the thunderstorm and lightning activity in the area, the ADF needle was making wide swings, so it was difficult to judge the 209 degree bearing exactly. The copilot was flying the aircraft and I was monitoring the navigation as best we could under the thunderstorm and lightning situation. We heard center tell another aircraft to turn left immediately, and then center told us to expedite our descent and turn left to 080 degrees, which we did right away. Then center asked us if we were told to intercept the 042 degree radial off fll. I replied 'negative, we were told to intercept the mrlin 2 arrival.' the 042 degree radial is not depicted on the mrlin 2 arrival. In fact, the fll VOR is not depicted on the arrival. The best my copilot and I could figure was perhaps, before andrew VOR came on the air, there may have been an arrival to fxe that depicted the 042 degree radial off of fll and ATC was confused and thought we would fly the old arrival. Whatever, what I should have done is request our life guard priority, and continue to fly direct first officer fxe. Then there would have been no confusion on ATC's part.

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Original NASA ASRS Text

Title: AN AIR AMBULANCE SMT WAS GIVEN THE MRLIN 1 ARR TO FLL. HE WANTED THE OSSON 2 ARR TO FXE.

Narrative: WE WERE ON AN AIR AMBULANCE FLT FROM ALB TO FXE. WE WERE CLRED DIRECT TO FXE APPROX 20 MINS AFTER TKOF FROM ALBANY, NY. WE WERE IN THE ACFT APPROX 2 HRS 15 MINS WHEN WE WERE TOLD (BY ZMA) TO TURN L TO 140 DEGS DURING THE DSCNT FROM 10000 FT TO 11000 FT (WE HAD BEEN ON APPROX A 200 DEG BEARING DIRECT TO FXE AT THE TIME) AND INTERCEPT THE MRLIN 2 ARR TO FXE. THE ARR IS: INTERCEPT THE 200 DEG BEARING TO ANDREW NDB. BECAUSE OF THE TSTM AND LIGHTNING ACTIVITY IN THE AREA, THE ADF NEEDLE WAS MAKING WIDE SWINGS, SO IT WAS DIFFICULT TO JUDGE THE 209 DEG BEARING EXACTLY. THE COPLT WAS FLYING THE ACFT AND I WAS MONITORING THE NAV AS BEST WE COULD UNDER THE TSTM AND LIGHTNING SIT. WE HEARD CTR TELL ANOTHER ACFT TO TURN L IMMEDIATELY, AND THEN CTR TOLD US TO EXPEDITE OUR DSCNT AND TURN L TO 080 DEGS, WHICH WE DID RIGHT AWAY. THEN CTR ASKED US IF WE WERE TOLD TO INTERCEPT THE 042 DEG RADIAL OFF FLL. I REPLIED 'NEGATIVE, WE WERE TOLD TO INTERCEPT THE MRLIN 2 ARR.' THE 042 DEG RADIAL IS NOT DEPICTED ON THE MRLIN 2 ARR. IN FACT, THE FLL VOR IS NOT DEPICTED ON THE ARR. THE BEST MY COPLT AND I COULD FIGURE WAS PERHAPS, BEFORE ANDREW VOR CAME ON THE AIR, THERE MAY HAVE BEEN AN ARR TO FXE THAT DEPICTED THE 042 DEG RADIAL OFF OF FLL AND ATC WAS CONFUSED AND THOUGHT WE WOULD FLY THE OLD ARR. WHATEVER, WHAT I SHOULD HAVE DONE IS REQUEST OUR LIFE GUARD PRIORITY, AND CONTINUE TO FLY DIRECT FO FXE. THEN THERE WOULD HAVE BEEN NO CONFUSION ON ATC'S PART.

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.