Narrative:

Long final on runway 12, slowed to follow B757 for same runway. Initially 5 mi in trail on a VFR day. Approach asked if we had the B757 in sight, we said we did. Cleared visual behind the B757, speed 190 KTS to the marker. Normally that would not be too much of a problem. Contacted the tower and now realized the B757 was slowing. Tower cleared us to land and turn off at taxiway Q4. With calm winds, and now barely 3 mi behind the B757, we advised ATC that we would be slowing below the assigned speed in order to maintain adequate separation. Additionally we advised them, that due to the proximity of the B757, and the concern about his wake turbulence, we would be unable to turn off at taxiway Q4 because we would be landing above the B757 wake. Tower understood and approved taxiway Z turnoff if needed. In the flare we did encounter some wake turbulence, but it would have been worse if landing had been more on GS. Due to our need to turn off at taxiway Z, the tower told the next airplane to go around. We were being squeezed by ATC to keep the speed high, close in to an airplane with wake turbulence concerns, and to try to make a turnoff at ATC's request. We felt the prudent thing to do was fly above the wake and take a later turnoff.

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Original NASA ASRS Text

Title: CLRED FOR A VISUAL APCH TO FOLLOW A B757 AN AIRBUS SLOWS WHEN UNABLE TO MAINTAIN SPACING AS THE PRECEDING B757 BEGAN TO SLOW. ATC IS NOTIFIED OF A SPD REDUCTION BELOW ASSIGNED AND LONG LNDG WAS REQUESTED. A THIRD (FOLLOWING) ACFT WAS DIRECTED TO GO AROUND BY ATC.

Narrative: LONG FINAL ON RWY 12, SLOWED TO FOLLOW B757 FOR SAME RWY. INITIALLY 5 MI IN TRAIL ON A VFR DAY. APCH ASKED IF WE HAD THE B757 IN SIGHT, WE SAID WE DID. CLRED VISUAL BEHIND THE B757, SPD 190 KTS TO THE MARKER. NORMALLY THAT WOULD NOT BE TOO MUCH OF A PROB. CONTACTED THE TWR AND NOW REALIZED THE B757 WAS SLOWING. TWR CLRED US TO LAND AND TURN OFF AT TXWY Q4. WITH CALM WINDS, AND NOW BARELY 3 MI BEHIND THE B757, WE ADVISED ATC THAT WE WOULD BE SLOWING BELOW THE ASSIGNED SPD IN ORDER TO MAINTAIN ADEQUATE SEPARATION. ADDITIONALLY WE ADVISED THEM, THAT DUE TO THE PROX OF THE B757, AND THE CONCERN ABOUT HIS WAKE TURB, WE WOULD BE UNABLE TO TURN OFF AT TXWY Q4 BECAUSE WE WOULD BE LNDG ABOVE THE B757 WAKE. TWR UNDERSTOOD AND APPROVED TXWY Z TURNOFF IF NEEDED. IN THE FLARE WE DID ENCOUNTER SOME WAKE TURB, BUT IT WOULD HAVE BEEN WORSE IF LNDG HAD BEEN MORE ON GS. DUE TO OUR NEED TO TURN OFF AT TXWY Z, THE TWR TOLD THE NEXT AIRPLANE TO GO AROUND. WE WERE BEING SQUEEZED BY ATC TO KEEP THE SPD HIGH, CLOSE IN TO AN AIRPLANE WITH WAKE TURB CONCERNS, AND TO TRY TO MAKE A TURNOFF AT ATC'S REQUEST. WE FELT THE PRUDENT THING TO DO WAS FLY ABOVE THE WAKE AND TAKE A LATER TURNOFF.

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.