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Flight crew off las unable to initially respond to controller's instructions because they received 2 TCASII alerts during climb out.
| Attributes | |
| ACN | 559061 |
| Time | |
| Date | 200209 |
| Day | Mon |
| Local Time Of Day | 0601 To 1200 |
| Place | |
| Locale Reference | airport : las.airport |
| State Reference | NV |
| Altitude | msl single value : 11000 |
| Environment | |
| Flight Conditions | VMC |
| Light | Daylight |
| Aircraft 1 | |
| Controlling Facilities | tracon : l30.tracon tower : ack.tower |
| Operator | common carrier : air carrier |
| Make Model Name | MD-80 Super 80 |
| Operating Under FAR Part | Part 121 |
| Flight Phase | climbout : intermediate altitude |
| Route In Use | departure : on vectors |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | government : faa |
| Function | controller : departure |
| Qualification | controller : radar |
| Experience | controller radar : 10 |
| ASRS Report | 559061 |
| Person 2 | |
| Affiliation | government : faa |
| Function | controller : handoff position controller : departure |
| Events | |
| Anomaly | conflict : airborne critical other anomaly other |
| Independent Detector | atc equipment other atc equipment : radar aircraft equipment : tcas other controllera other flight crewa |
| Resolutory Action | controller : issued advisory flight crew : took evasive action |
| Miss Distance | horizontal : 12000 vertical : 500 |
| Supplementary | |
| Problem Areas | Flight Crew Human Performance ATC Human Performance |
| Primary Problem | Ambiguous |
Narrative:
While working west departure radar (moderate traffic) I issued air carrier X MD80 a turn heading 290 degrees. Air carrier X acknowledged the instructions. I continued giving instructions to other aircraft and noticed air carrier X not turning. When I questioned air carrier X why he was not turning, he advised me he was getting a TCASII. I advised him he was entering another sector's airspace. My associate pointed air carrier X out to the appropriate sectors and approved a climb to a higher altitude. I then climbed aircraft to 12000 ft, issued traffic at 13000 ft. Air carrier X advised me he was receiving another TCASII and could not accept another turn. Eventually, air carrier X accepted a turn nwbound and I xferred communications to ZLA.
Original NASA ASRS Text
Title: FLC OFF LAS UNABLE TO INITIALLY RESPOND TO CTLR'S INSTRUCTIONS BECAUSE THEY RECEIVED 2 TCASII ALERTS DURING CLBOUT.
Narrative: WHILE WORKING W DEP RADAR (MODERATE TFC) I ISSUED ACR X MD80 A TURN HDG 290 DEGS. ACR X ACKNOWLEDGED THE INSTRUCTIONS. I CONTINUED GIVING INSTRUCTIONS TO OTHER ACFT AND NOTICED ACR X NOT TURNING. WHEN I QUESTIONED ACR X WHY HE WAS NOT TURNING, HE ADVISED ME HE WAS GETTING A TCASII. I ADVISED HIM HE WAS ENTERING ANOTHER SECTOR'S AIRSPACE. MY ASSOCIATE POINTED ACR X OUT TO THE APPROPRIATE SECTORS AND APPROVED A CLB TO A HIGHER ALT. I THEN CLBED ACFT TO 12000 FT, ISSUED TFC AT 13000 FT. ACR X ADVISED ME HE WAS RECEIVING ANOTHER TCASII AND COULD NOT ACCEPT ANOTHER TURN. EVENTUALLY, ACR X ACCEPTED A TURN NWBOUND AND I XFERRED COMS TO ZLA.
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.