Narrative:

Bay approach cleared us from a high right base for runway 28R VFR approach. Our PF noted we were high and advised that approach could be made but speed would have to be kept higher than normal. Bay approach said keep speed up. They also advised us that a jetstream was making an approach to runway 28L and did we have him in sight. We said yes we did. On final approach we were handed over to tower. On tower they asked us to start slowing for approach, which we did. We passed the jetstream on the right and he was given a go around as a precaution for our jetwash/vortex generation. Solution: bay approach is a bit too aggressive in trying to maximize number of lndgs. Heavy aircraft should be given intentional wide patterns and sequence them into pattern properly. They should avoid 'slam dunk' of heavy aircraft.

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Original NASA ASRS Text

Title: A B747-400 FLC PASSED AN ACFT ON A PARALLEL APCH TO SFO, WHICH REQUIRED THE PASSED ACFT TO GO AROUND AS A PRECAUTION AGAINST WAKE TURB.

Narrative: BAY APCH CLRED US FROM A HIGH R BASE FOR RWY 28R VFR APCH. OUR PF NOTED WE WERE HIGH AND ADVISED THAT APCH COULD BE MADE BUT SPD WOULD HAVE TO BE KEPT HIGHER THAN NORMAL. BAY APCH SAID KEEP SPD UP. THEY ALSO ADVISED US THAT A JETSTREAM WAS MAKING AN APCH TO RWY 28L AND DID WE HAVE HIM IN SIGHT. WE SAID YES WE DID. ON FINAL APCH WE WERE HANDED OVER TO TWR. ON TWR THEY ASKED US TO START SLOWING FOR APCH, WHICH WE DID. WE PASSED THE JETSTREAM ON THE R AND HE WAS GIVEN A GAR AS A PRECAUTION FOR OUR JETWASH/VORTEX GENERATION. SOLUTION: BAY APCH IS A BIT TOO AGGRESSIVE IN TRYING TO MAXIMIZE NUMBER OF LNDGS. HVY ACFT SHOULD BE GIVEN INTENTIONAL WIDE PATTERNS AND SEQUENCE THEM INTO PATTERN PROPERLY. THEY SHOULD AVOID 'SLAM DUNK' OF HVY ACFT.

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.