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A flight crew responded to TCASII RA commands after the controller's vector failed to keep the proximity of aircraft from triggering an RA. The flight crew climbed 900 ft before they were able to see the traffic visually.
| Attributes | |
| ACN | 335660 |
| Time | |
| Date | 199605 |
| Day | Sat |
| Local Time Of Day | 0601 To 1200 |
| Place | |
| Locale Reference | atc facility : sug |
| State Reference | NC |
| Altitude | msl bound lower : 10000 msl bound upper : 10900 |
| Environment | |
| Flight Conditions | VMC |
| Light | Daylight |
| Aircraft 1 | |
| Controlling Facilities | tracon : avl |
| Operator | common carrier : air carrier |
| Make Model Name | Commercial Fixed Wing |
| Operating Under FAR Part | Part 121 |
| Flight Phase | cruise other |
| Route In Use | enroute : on vectors enroute airway : avl |
| Flight Plan | IFR |
| Aircraft 2 | |
| Make Model Name | Any Unknown or Unlisted Aircraft Manufacturer |
| Operating Under FAR Part | other : unknown |
| Flight Phase | climbout : intermediate altitude |
| Person 1 | |
| Affiliation | company : air carrier |
| Function | flight crew : first officer |
| Qualification | pilot : commercial pilot : instrument |
| Experience | flight time last 90 days : 150 flight time total : 4000 |
| ASRS Report | 335660 |
| Person 2 | |
| Affiliation | company : air carrier |
| Function | flight crew : captain oversight : pic |
| Qualification | pilot : atp |
| Events | |
| Anomaly | conflict : airborne less severe other anomaly other |
| Independent Detector | aircraft equipment other aircraft equipment : unspecified other controllera |
| Resolutory Action | controller : issued new clearance flight crew : took evasive action |
| Consequence | Other |
| Miss Distance | horizontal : 6000 vertical : 300 |
| Supplementary | |
| Air Traffic Incident | other |
Narrative:
ATC called and TCASII pop-up traffic was at 5 mi, 12 O'clock, 500 ft low and closing. At 3 1/2 NM on TCASII, I requested a turn from our assigned 270 degree heading. ATC issued 300 degrees. In the turn, at 2 NM on TCASII, traffic showed 300 ft low. The TCASII RA commanded climb, climb, now. We complied with the RA and climbed to 10900 ft without further incident. Low risk. Upon reaching 10900 ft traffic was visual to us.
Original NASA ASRS Text
Title: A FLC RESPONDED TO TCASII RA COMMANDS AFTER THE CTLR'S VECTOR FAILED TO KEEP THE PROX OF ACFT FROM TRIGGERING AN RA. THE FLC CLBED 900 FT BEFORE THEY WERE ABLE TO SEE THE TFC VISUALLY.
Narrative: ATC CALLED AND TCASII POP-UP TFC WAS AT 5 MI, 12 O'CLOCK, 500 FT LOW AND CLOSING. AT 3 1/2 NM ON TCASII, I REQUESTED A TURN FROM OUR ASSIGNED 270 DEG HDG. ATC ISSUED 300 DEGS. IN THE TURN, AT 2 NM ON TCASII, TFC SHOWED 300 FT LOW. THE TCASII RA COMMANDED CLB, CLB, NOW. WE COMPLIED WITH THE RA AND CLBED TO 10900 FT WITHOUT FURTHER INCIDENT. LOW RISK. UPON REACHING 10900 FT TFC WAS VISUAL TO US.
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.