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Close proximity air carrier-medium large transport GA-small aircraft northwest of dtw at TCA boundary.
| Attributes | |
| ACN | 188495 |
| Time | |
| Date | 199109 |
| Day | Sun |
| Local Time Of Day | 1201 To 1800 |
| Place | |
| Locale Reference | airport : dtw |
| State Reference | MI |
| Altitude | msl bound lower : 6000 msl bound upper : 7200 |
| Environment | |
| Flight Conditions | VMC |
| Light | Daylight |
| Aircraft 1 | |
| Controlling Facilities | tracon : dtw |
| Operator | common carrier : air carrier |
| Make Model Name | Medium Large Transport, Low Wing, 2 Turbojet Eng |
| Flight Phase | descent other |
| Route In Use | enroute : on vectors |
| Flight Plan | IFR |
| Aircraft 2 | |
| Make Model Name | Small Aircraft |
| Flight Phase | cruise other |
| Flight Plan | VFR |
| Person 1 | |
| Affiliation | company : air carrier |
| Function | flight crew : captain oversight : pic |
| Qualification | pilot : atp |
| Experience | flight time last 90 days : 120 flight time total : 18000 |
| ASRS Report | 188495 |
| Person 2 | |
| Affiliation | company : air carrier |
| Function | flight crew : first officer |
| Qualification | pilot : atp |
| Events | |
| Anomaly | altitude deviation : undershoot conflict : airborne less severe other spatial deviation |
| Independent Detector | aircraft equipment other aircraft equipment : unspecified |
| Resolutory Action | flight crew : took evasive action |
| Consequence | faa : reviewed incident with flight crew |
| Miss Distance | horizontal : 0 vertical : 550 |
| Supplementary | |
| Primary Problem | Flight Crew Human Performance |
| Air Traffic Incident | other |
Narrative:
Flight was being vectored for an ILS 21R approach dtw. We were at 8000 ft heading 150 degree. We were given a left turn to 120 degree and descend to 6000 ft. While in the turn and descending we were given VFR traffic estimated at 6300 ft wbound with no radio contact. Soon after that we got a TCASII TA followed by a RA. We stopped our descent at approximately 7200 ft and started a turn back to the right. The traffic passed below us approximately 500-600 ft with no visual contact. TCASII worked as advertised. I was asked to call dtw approach on the ground at dtw. I reported the above narrative to them.
Original NASA ASRS Text
Title: CLOSE PROX ACR-MLG GA-SMA NW OF DTW AT TCA BOUNDARY.
Narrative: FLT WAS BEING VECTORED FOR AN ILS 21R APCH DTW. WE WERE AT 8000 FT HDG 150 DEG. WE WERE GIVEN A L TURN TO 120 DEG AND DSND TO 6000 FT. WHILE IN THE TURN AND DSNDING WE WERE GIVEN VFR TFC ESTIMATED AT 6300 FT WBOUND WITH NO RADIO CONTACT. SOON AFTER THAT WE GOT A TCASII TA FOLLOWED BY A RA. WE STOPPED OUR DSCNT AT APPROX 7200 FT AND STARTED A TURN BACK TO THE R. THE TFC PASSED BELOW US APPROX 500-600 FT WITH NO VISUAL CONTACT. TCASII WORKED AS ADVERTISED. I WAS ASKED TO CALL DTW APCH ON THE GND AT DTW. I RPTED THE ABOVE NARRATIVE TO THEM.
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.