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Flight crew of MD80 level at 12000 ft responded to TCASII RA triggered by reported climbing VFR traffic. RA 'climb' command to MD80 continued until 12800 ft.
| Attributes | |
| ACN | 585721 |
| Time | |
| Date | 200306 |
| Day | Mon |
| Local Time Of Day | 0001 To 0600 |
| Place | |
| Locale Reference | intersection : tenco |
| State Reference | CA |
| Altitude | msl bound lower : 12000 msl bound upper : 12900 |
| Environment | |
| Flight Conditions | VMC |
| Aircraft 1 | |
| Controlling Facilities | artcc : zoa.artcc tracon : nct.tracon |
| Operator | common carrier : air carrier |
| Make Model Name | MD-83 |
| Operating Under FAR Part | Part 121 |
| Flight Phase | descent : intermediate altitude |
| Route In Use | arrival star : flunk 3 |
| Flight Plan | IFR |
| Aircraft 2 | |
| Operator | general aviation : personal |
| Make Model Name | Any Unknown or Unlisted Aircraft Manufacturer |
| Operating Under FAR Part | Part 91 |
| Flight Phase | climbout : intermediate altitude |
| Flight Plan | None |
| Person 1 | |
| Affiliation | company : air carrier |
| Function | flight crew : captain oversight : pic |
| Qualification | pilot : atp |
| ASRS Report | 585721 |
| Person 2 | |
| Affiliation | company : air carrier |
| Function | flight crew : first officer |
| Events | |
| Anomaly | conflict : airborne critical other anomaly other |
| Independent Detector | aircraft equipment : tcas |
| Resolutory Action | flight crew : took evasive action flight crew : returned to assigned altitude |
| Supplementary | |
| Problem Areas | Airspace Structure Flight Crew Human Performance ATC Human Performance |
| Primary Problem | Flight Crew Human Performance |
| Air Traffic Incident | Pilot Deviation |
Narrative:
We were on the flunk 3 arrival, 20 mi east of tenco fix descending to 12000 ft when ZOA advised us of VFR traffic at 12 O'clock position climbing to 11000 ft. As we leveled off at 12000 ft we watched the traffic approaching us on TCASII. We received a TA alert followed by an RA as the target aircraft continued its climb to at least 11700 ft. We initiated a climb maneuver as instructed by the TCASII RA up to approximately 12900 ft before getting a 'clear of conflict' command from the TCASII. We immediately notified ZOA who then handed us over to norcal approach control for approach and landing at smf. Descent and approach checklist had been completed with the proper altimeter set as per the ATIS.
Original NASA ASRS Text
Title: FLT CREW OF MD80 LEVEL AT 12000 FT RESPONDED TO TCASII RA TRIGGERED BY RPTED CLBING VFR TFC. RA 'CLB' COMMAND TO MD80 CONTINUED UNTIL 12800 FT.
Narrative: WE WERE ON THE FLUNK 3 ARR, 20 MI E OF TENCO FIX DSNDING TO 12000 FT WHEN ZOA ADVISED US OF VFR TFC AT 12 O'CLOCK POS CLBING TO 11000 FT. AS WE LEVELED OFF AT 12000 FT WE WATCHED THE TFC APCHING US ON TCASII. WE RECEIVED A TA ALERT FOLLOWED BY AN RA AS THE TARGET ACFT CONTINUED ITS CLB TO AT LEAST 11700 FT. WE INITIATED A CLB MANEUVER AS INSTRUCTED BY THE TCASII RA UP TO APPROX 12900 FT BEFORE GETTING A 'CLR OF CONFLICT' COMMAND FROM THE TCASII. WE IMMEDIATELY NOTIFIED ZOA WHO THEN HANDED US OVER TO NORCAL APCH CTL FOR APCH AND LNDG AT SMF. DSCNT AND APCH CHKLIST HAD BEEN COMPLETED WITH THE PROPER ALTIMETER SET AS PER THE ATIS.
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.