Narrative:

We taxied out to the holding point for runway 12. We were #1 for departure. I was taxiing the aircraft and the first officer was handling the communications. A radio call came over our headsets 'cleared for takeoff. Fly heading 105 degrees, a B767 is departing runway 9L.' the first officer read back our call sign with the takeoff clearance and heading. I started to taxi out to the threshold of runway 12 when I saw a B737 on approximately 3 mi final. I asked the first officer to confirm our clearance. He called the tower for clarification. The tower responded with 105 degrees on the heading. I was still moving into position and realized 105 degrees was an unusual heading for our destination and keyed the microphone and heard a partial block, so I released the microphone and heard tower tell us to clear the runway. We taxied clear. The tower gave us no further instructions. I believe we were cleared into position and for takeoff, but did not receive information about the aircraft on final. I also believe the heading was confused by the tower which added to the confusion we were having.

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Original NASA ASRS Text

Title: A BEECH 1900 FLC ACCEPTED A CLRNC INTENDED FOR ANOTHER ACFT AND TAXIED ONTO THE ACTIVE RWY AT MIA.

Narrative: WE TAXIED OUT TO THE HOLDING POINT FOR RWY 12. WE WERE #1 FOR DEP. I WAS TAXIING THE ACFT AND THE FO WAS HANDLING THE COMS. A RADIO CALL CAME OVER OUR HEADSETS 'CLRED FOR TKOF. FLY HDG 105 DEGS, A B767 IS DEPARTING RWY 9L.' THE FO READ BACK OUR CALL SIGN WITH THE TKOF CLRNC AND HDG. I STARTED TO TAXI OUT TO THE THRESHOLD OF RWY 12 WHEN I SAW A B737 ON APPROX 3 MI FINAL. I ASKED THE FO TO CONFIRM OUR CLRNC. HE CALLED THE TWR FOR CLARIFICATION. THE TWR RESPONDED WITH 105 DEGS ON THE HDG. I WAS STILL MOVING INTO POS AND REALIZED 105 DEGS WAS AN UNUSUAL HDG FOR OUR DEST AND KEYED THE MIKE AND HEARD A PARTIAL BLOCK, SO I RELEASED THE MIKE AND HEARD TWR TELL US TO CLR THE RWY. WE TAXIED CLR. THE TWR GAVE US NO FURTHER INSTRUCTIONS. I BELIEVE WE WERE CLRED INTO POS AND FOR TKOF, BUT DID NOT RECEIVE INFO ABOUT THE ACFT ON FINAL. I ALSO BELIEVE THE HDG WAS CONFUSED BY THE TWR WHICH ADDED TO THE CONFUSION WE WERE HAVING.

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.