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Medium large transport has less than standard separation from large transport during runway change vectors. TCASII RA alerted flight crew.
| Attributes | |
| ACN | 280797 |
| Time | |
| Date | 199408 |
| Day | Mon |
| Local Time Of Day | 1801 To 2400 |
| Place | |
| Locale Reference | airport : clt |
| State Reference | NC |
| Altitude | msl bound lower : 6000 msl bound upper : 6000 |
| Environment | |
| Flight Conditions | Marginal |
| Light | Dusk |
| Aircraft 1 | |
| Controlling Facilities | tracon : clt |
| Operator | common carrier : air carrier |
| Make Model Name | Commercial Fixed Wing |
| Operating Under FAR Part | Part 121 |
| Flight Phase | descent : approach |
| Route In Use | enroute : on vectors |
| Flight Plan | IFR |
| Aircraft 2 | |
| Operator | common carrier : air carrier |
| Make Model Name | B757 Undifferentiated or Other Model |
| Operating Under FAR Part | Part 121 |
| Navigation In Use | Other Other |
| Flight Phase | descent : approach |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | company : air carrier |
| Function | flight crew : first officer |
| Qualification | pilot : cfi pilot : atp |
| Experience | flight time last 90 days : 200 flight time total : 7500 flight time type : 3000 |
| ASRS Report | 280797 |
| Person 2 | |
| Affiliation | company : air carrier |
| Function | flight crew : captain oversight : pic |
| Qualification | pilot : atp |
| Events | |
| Anomaly | non adherence : required legal separation other anomaly other |
| Independent Detector | aircraft equipment other aircraft equipment : unspecified |
| Resolutory Action | flight crew : took evasive action |
| Consequence | Other |
| Miss Distance | horizontal : 5000 vertical : 200 |
| Supplementary | |
| Primary Problem | ATC Human Performance |
| Air Traffic Incident | Operational Error |
Narrative:
During approach to clt we were being vectored to land runway 23 when an aircraft blew a tire and closed the runway. We were on a northeast heading (050 degrees), approach then changed our runway to runway 18L and turned us to a 360 heading. As we rolled out of the turn we received an RA on TCASII and saw a target at 2 O'clock and 2 mi. We looked out and saw a 757 at our altitude and converging. We rolled right and kept the traffic in sight. We contacted the controller and advised him of our new heading 050 degrees. The reason I saw this near midair collision was approach control was traffic saturated and was vectoring aircraft away from runway 23 to runway 18L. Because of this saturation the controller was overwhelmed and ended up putting 2 aircraft in the sky at the same altitude on a converging course. If it were not for TCASII, I can say the results could have been devastating.
Original NASA ASRS Text
Title: MLG HAS LTSS FROM LGT DURING RWY CHANGE VECTORS. TCASII RA ALERTED FLC.
Narrative: DURING APCH TO CLT WE WERE BEING VECTORED TO LAND RWY 23 WHEN AN ACFT BLEW A TIRE AND CLOSED THE RWY. WE WERE ON A NE HDG (050 DEGS), APCH THEN CHANGED OUR RWY TO RWY 18L AND TURNED US TO A 360 HDG. AS WE ROLLED OUT OF THE TURN WE RECEIVED AN RA ON TCASII AND SAW A TARGET AT 2 O'CLOCK AND 2 MI. WE LOOKED OUT AND SAW A 757 AT OUR ALT AND CONVERGING. WE ROLLED R AND KEPT THE TFC IN SIGHT. WE CONTACTED THE CTLR AND ADVISED HIM OF OUR NEW HDG 050 DEGS. THE REASON I SAW THIS NMAC WAS APCH CTL WAS TFC SATURATED AND WAS VECTORING ACFT AWAY FROM RWY 23 TO RWY 18L. BECAUSE OF THIS SATURATION THE CTLR WAS OVERWHELMED AND ENDED UP PUTTING 2 ACFT IN THE SKY AT THE SAME ALT ON A CONVERGING COURSE. IF IT WERE NOT FOR TCASII, I CAN SAY THE RESULTS COULD HAVE BEEN DEVASTATING.
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.