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Air carrier descending on the FMS bridge arrival into sfo was issued conflicting VFR traffic by ATC and issued an avoidance turn; TCAS TA/RA was received; the reporter noting ATC should have issued a level off altitude.
| Attributes | |
| ACN | 911242 |
| Time | |
| Date | 201009 |
| Local Time Of Day | 1201-1800 |
| Place | |
| Locale Reference | NCT.TRACON |
| State Reference | CA |
| Aircraft 1 | |
| Make Model Name | B757-200 |
| Operating Under FAR Part | Part 121 |
| Flight Phase | Descent |
| Person 1 | |
| Function | Captain Pilot Flying |
| Events | |
| Anomaly | ATC Issue All Types Conflict Airborne Conflict |
Narrative:
Cleared direct archi intersection to join FMS bridge RNAV final; descending to 11;000. ATC called traffic at our 10:00 at 11;000 ft. They said they were not talking to the traffic. Next gave us a clearance to turn 25 left. As we turned we got a 'traffic traffic'; TA and we were approximately 11;300 descending. The turn aimed us directly at the target. We next got a monitor vertical speed RA; which lasted 2 seconds then got the climb RA. Informed ATC; climbed to around 11;800; got clear of traffic TA; then direct archi descend to 8;000. Nothing more said. System worked as advertised. ATC should have stopped our descent at 12;000 would be my guess.
Original NASA ASRS Text
Title: Air Carrier descending on the FMS Bridge arrival into SFO was issued conflicting VFR traffic by ATC and issued an avoidance turn; TCAS TA/RA was received; the reporter noting ATC should have issued a level off altitude.
Narrative: Cleared direct ARCHI Intersection to join FMS bridge RNAV final; descending to 11;000. ATC called traffic at our 10:00 at 11;000 FT. They said they were not talking to the traffic. Next gave us a clearance to turn 25 left. As we turned we got a 'traffic traffic'; TA and we were approximately 11;300 descending. The turn aimed us directly at the target. We next got a monitor vertical speed RA; which lasted 2 seconds then got the climb RA. Informed ATC; climbed to around 11;800; got clear of traffic TA; then direct ARCHI descend to 8;000. Nothing more said. System worked as advertised. ATC should have stopped our descent at 12;000 would be my guess.
Data retrieved from NASA's ASRS site as of April 2012 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.