Narrative:

On approach to sfo runway 28L, outside of bridge, traffic was pointed out to us (an air carrier Y B757). That traffic was going to runway 28R. Each of the aircraft acknowledged the other in sight. Air carrier Y was cleared for the visual approach to runway 28L. Air carrier Y was instructed to keep air carrier X in sight. At the bridge, air carrier X flight got a TCASII traffic alert off our right side and behind. Then a TCASII RA inside bridge and air carrier Y is directly off our right side approximately 500 ft and passed us. There is no way air carrier Y kept us in sight and created an unsafe flight condition by passing us on the final approach. Approach control and tower had staggered the aircraft for the approach. In summary: aircraft should not pass on the approach because of the close lateral separation. This action by air carrier Y created a TCASII RA and is a direct deviation from the sfo charted visual flight procedures, which state: heavy aircraft and B757's will not be authority/authorized to overtake another aircraft on the adjacent final approach course.

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Original NASA ASRS Text

Title: B757 PLT IS CONCERNED WITH AN ADJACENT B757 PASSING ON FINAL AT SFO.

Narrative: ON APCH TO SFO RWY 28L, OUTSIDE OF BRIDGE, TFC WAS POINTED OUT TO US (AN ACR Y B757). THAT TFC WAS GOING TO RWY 28R. EACH OF THE ACFT ACKNOWLEDGED THE OTHER IN SIGHT. ACR Y WAS CLRED FOR THE VISUAL APCH TO RWY 28L. ACR Y WAS INSTRUCTED TO KEEP ACR X IN SIGHT. AT THE BRIDGE, ACR X FLT GOT A TCASII TFC ALERT OFF OUR R SIDE AND BEHIND. THEN A TCASII RA INSIDE BRIDGE AND ACR Y IS DIRECTLY OFF OUR R SIDE APPROX 500 FT AND PASSED US. THERE IS NO WAY ACR Y KEPT US IN SIGHT AND CREATED AN UNSAFE FLT CONDITION BY PASSING US ON THE FINAL APCH. APCH CTL AND TWR HAD STAGGERED THE ACFT FOR THE APCH. IN SUMMARY: ACFT SHOULD NOT PASS ON THE APCH BECAUSE OF THE CLOSE LATERAL SEPARATION. THIS ACTION BY ACR Y CREATED A TCASII RA AND IS A DIRECT DEV FROM THE SFO CHARTED VISUAL FLT PROCS, WHICH STATE: HVY ACFT AND B757'S WILL NOT BE AUTH TO OVERTAKE ANOTHER ACFT ON THE ADJACENT FINAL APCH COURSE.

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.