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An A330 TCAS issued RA warnings inside the outer marker so a go around was executed and the crew determined the warnings were false.
| Attributes | |
| ACN | 968777 |
| Time | |
| Date | 201109 |
| Local Time Of Day | 1201-1800 |
| Place | |
| Locale Reference | ZZZ.Airport |
| State Reference | US |
| Environment | |
| Light | Daylight |
| Aircraft 1 | |
| Make Model Name | A330 |
| Operating Under FAR Part | Part 121 |
| Flight Phase | Initial Approach |
| Flight Plan | IFR |
| Component | |
| Aircraft Component | Traffic Collision Avoidance System (TCAS) |
| Person 1 | |
| Function | Captain Pilot Flying |
| Qualification | Flight Crew Air Transport Pilot (ATP) |
| Events | |
| Anomaly | Aircraft Equipment Problem Critical |
Narrative:
Inside the outer marker traffic popped up on TCAS 200 ft below us. We were told to climb; then traffic showed at our altitude and we were told to descend. By then we were climbing. Then traffic jumped to 6 miles away and TCAS said clear of traffic. During go around traffic showed in our position again then jumped away. Tower reported helicopter traffic at first and then said it was clear. The TCAS was showing false traffic through out our go around. The traffic was always within 200 ft or at our altitude and then would jump away. We went around and made an uneventful approach and landing and wrote up the TCAS. I chose to go around because I did not know if there was traffic or not. I did not want to ignore the TCAS and could not get away from the traffic.
Original NASA ASRS Text
Title: An A330 TCAS issued RA warnings inside the outer marker so a go around was executed and the crew determined the warnings were false.
Narrative: Inside the outer marker traffic popped up on TCAS 200 FT below us. We were told to climb; then traffic showed at our altitude and we were told to descend. By then we were climbing. Then traffic jumped to 6 miles away and TCAS said clear of traffic. During go around traffic showed in our position again then jumped away. Tower reported helicopter traffic at first and then said it was clear. The TCAS was showing false traffic through out our go around. The traffic was always within 200 FT or at our altitude and then would jump away. We went around and made an uneventful approach and landing and wrote up the TCAS. I chose to go around because I did not know if there was traffic or not. I did not want to ignore the TCAS and could not get away from the traffic.
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.