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Large transport given widebody transport as traffic during descent. TCASII gave RA to climb, large transport turned instead as had widebody transport in sight.
| Attributes | |
| ACN | 193839 |
| Time | |
| Date | 199111 |
| Day | Sat |
| Local Time Of Day | 1801 To 2400 |
| Place | |
| Locale Reference | airport : msp |
| State Reference | MN |
| Altitude | msl bound lower : 5000 msl bound upper : 6300 |
| Environment | |
| Flight Conditions | Marginal |
| Light | Night |
| Aircraft 1 | |
| Controlling Facilities | tracon : msp |
| Operator | common carrier : air carrier |
| Make Model Name | Large Transport, Low Wing, 3 Turbojet Eng |
| Flight Phase | descent other |
| Route In Use | approach : visual enroute : on vectors |
| Flight Plan | IFR |
| Aircraft 2 | |
| Operator | common carrier : air carrier |
| Make Model Name | Widebody, Low Wing, 3 Turbojet Eng |
| Navigation In Use | Other |
| Flight Phase | descent other |
| Route In Use | approach : visual |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | company : air carrier |
| Function | flight crew : captain oversight : pic |
| Qualification | pilot : atp |
| Experience | flight time last 90 days : 180 flight time total : 8000 flight time type : 2400 |
| ASRS Report | 193839 |
| Person 2 | |
| Affiliation | company : air carrier |
| Function | flight crew : first officer |
| Qualification | pilot : atp |
| Events | |
| Anomaly | conflict : airborne less severe other anomaly other other spatial deviation |
| Independent Detector | other controllera other flight crewa |
| Resolutory Action | flight crew : took evasive action |
| Consequence | Other |
| Miss Distance | horizontal : 6000 vertical : 300 |
| Supplementary | |
| Primary Problem | Flight Crew Human Performance |
| Air Traffic Incident | Pilot Deviation |
Narrative:
We were being radar vectored to final approach (runway 22) at msp. We were descending to 5000 ft. Passing approximately 6000 ft we had a TCASII RA to climb. The traffic showed approximately 1 mi and 300 ft above us (descending) on TCASII. I elected to turn right to avoid the traffic, as we had visual contact with the widebody transport Y. Approach had previously called the widebody transport Y to us and we had a visual on him. There was a potential conflict, however, it was not a near miss. Approach control should have provided better separation between the 2 aircraft.
Original NASA ASRS Text
Title: LGT GIVEN WDB AS TFC DURING DSCNT. TCASII GAVE RA TO CLB, LGT TURNED INSTEAD AS HAD WDB IN SIGHT.
Narrative: WE WERE BEING RADAR VECTORED TO FINAL APCH (RWY 22) AT MSP. WE WERE DSNDING TO 5000 FT. PASSING APPROX 6000 FT WE HAD A TCASII RA TO CLB. THE TFC SHOWED APPROX 1 MI AND 300 FT ABOVE US (DSNDING) ON TCASII. I ELECTED TO TURN R TO AVOID THE TFC, AS WE HAD VISUAL CONTACT WITH THE WDB Y. APCH HAD PREVIOUSLY CALLED THE WDB Y TO US AND WE HAD A VISUAL ON HIM. THERE WAS A POTENTIAL CONFLICT, HOWEVER, IT WAS NOT A NEAR MISS. APCH CTL SHOULD HAVE PROVIDED BETTER SEPARATION BTWN THE 2 ACFT.
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.