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Near midair collision occurred between aircraft X and Y. This was in addition to losing standard separation.
| Attributes | |
| ACN | 444871 |
| Time | |
| Date | 199907 |
| Day | Thu |
| Local Time Of Day | 0601 To 1200 |
| Place | |
| Locale Reference | atc facility : tncc.artcc |
| State Reference | FO |
| Altitude | msl bound lower : 32000 msl bound upper : 32500 |
| Environment | |
| Flight Conditions | VMC |
| Light | Daylight |
| Aircraft 1 | |
| Operator | common carrier : air carrier |
| Make Model Name | B757 Undifferentiated or Other Model |
| Operating Under FAR Part | Part 121 |
| Flight Phase | climbout : intermediate altitude |
| Route In Use | enroute airway : ua315.airway |
| Flight Plan | IFR |
| Aircraft 2 | |
| Controlling Facilities | artcc : tncc.artcc |
| Operator | common carrier : air carrier |
| Make Model Name | B757 Undifferentiated or Other Model |
| Operating Under FAR Part | Part 121 |
| Flight Phase | cruise : level |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | company : air carrier |
| Function | flight crew : captain oversight : pic |
| Qualification | pilot : atp |
| Experience | flight time last 90 days : 240 flight time total : 22000 flight time type : 180 |
| ASRS Report | 444871 |
| Person 2 | |
| Affiliation | company : air carrier |
| Function | flight crew : first officer |
| Qualification | pilot : commercial pilot : multi engine pilot : instrument pilot : atp |
| Experience | flight time last 90 days : 200 flight time total : 10000 flight time type : 1200 |
| ASRS Report | 445498 |
| Events | |
| Anomaly | conflict : airborne critical conflict : nmac non adherence : required legal separation |
| Independent Detector | aircraft equipment : tcas other flight crewa other flight crewb |
| Resolutory Action | flight crew : returned to intended or assigned course flight crew : took evasive action flight crew : returned to assigned altitude |
| Miss Distance | horizontal : 300 vertical : 200 |
| Supplementary | |
| Problem Areas | ATC Human Performance |
| Primary Problem | ATC Human Performance |
| Air Traffic Incident | Operational Error |
Narrative:
Climb out from svmi, air carrier X cleared to climb to FL350. Over J6 TA then RA sounded. Air carrier X turned 45 degrees right and began a descent. Visually acquired air carrier Y on left of air carrier X 300 ft horizontal, 200 ft vertical. Returned to track.
Original NASA ASRS Text
Title: NMAC OCCURRED BTWN ACFT X AND Y. THIS WAS IN ADDITION TO LOSING STANDARD SEPARATION.
Narrative: CLBOUT FROM SVMI, ACR X CLRED TO CLB TO FL350. OVER J6 TA THEN RA SOUNDED. ACR X TURNED 45 DEGS R AND BEGAN A DSCNT. VISUALLY ACQUIRED ACR Y ON L OF ACR X 300 FT HORIZ, 200 FT VERT. RETURNED TO TRACK.
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.