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During a visual approach to a class B primary airport, an air carrier flight crew received a TCASII TA regarding a light aircraft.
| Attributes | |
| ACN | 303198 |
| Time | |
| Date | 199505 |
| Day | Tue |
| Local Time Of Day | 1201 To 1800 |
| Place | |
| Locale Reference | airport : msp |
| State Reference | MN |
| Altitude | msl bound lower : 2800 msl bound upper : 2800 |
| Environment | |
| Flight Conditions | VMC |
| Light | Daylight |
| Aircraft 1 | |
| Controlling Facilities | tracon : msp |
| Operator | common carrier : air carrier |
| Make Model Name | A320 |
| Operating Under FAR Part | Part 121 |
| Navigation In Use | Other Other |
| Flight Phase | descent : approach |
| Route In Use | approach : visual |
| Flight Plan | IFR |
| Aircraft 2 | |
| Make Model Name | Any Unknown or Unlisted Aircraft Manufacturer |
| Operating Under FAR Part | other : unknown |
| Person 1 | |
| Affiliation | company : air carrier |
| Function | flight crew : captain oversight : pic |
| Qualification | pilot : atp |
| Experience | flight time total : 10000 |
| ASRS Report | 303198 |
| Person 2 | |
| Affiliation | company : air carrier |
| Function | flight crew : first officer |
| Qualification | pilot : atp |
| Events | |
| Anomaly | conflict : nmac other anomaly other |
| Independent Detector | aircraft equipment other aircraft equipment : unspecified other flight crewa |
| Resolutory Action | none taken : anomaly accepted |
| Consequence | faa : reviewed incident with flight crew |
| Miss Distance | horizontal : 200 vertical : 300 |
| Supplementary | |
| Primary Problem | Flight Crew Human Performance |
Narrative:
Near miss with light airplane on approach to msp runway 11R. From cedar intersection on bunkr 7 arrival the flight from phx-msp was given direct wayza. Then given visual approach to runway 11R with a 090 degree heading to final. This put us on a ground track slightly south of the runway 11R ILS course. We intercepted ILS GS with A320 approach mode activated autoplt #1 and #2 engaged. Had TCASII TA and amber aircraft symbol appear with approximately minus 300 shown for tgt. Scanned visually and saw light aircraft hook in from left side approximately 300 ft below us and just slightly aft of our wing line. No TA from ATC. I discussed the incident with msp approach control supervisor approximately 15 min after getting on ground. The consensus was that the light aircraft was very slightly out of the class B airspace and was legal to be where he was. In my view, if the class B airspace in msp is designed that way then we should look at a restructuring. To have both aircraft legal in a high capacity arena such as msp is a certain recipe for a mid-air. We need to change the msp approach airspace.
Original NASA ASRS Text
Title: DURING A VISUAL APCH TO A CLASS B PRIMARY ARPT, AN ACR FLC RECEIVED A TCASII TA REGARDING A LIGHT ACFT.
Narrative: NEAR MISS WITH LIGHT AIRPLANE ON APCH TO MSP RWY 11R. FROM CEDAR INTXN ON BUNKR 7 ARR THE FLT FROM PHX-MSP WAS GIVEN DIRECT WAYZA. THEN GIVEN VISUAL APCH TO RWY 11R WITH A 090 DEG HDG TO FINAL. THIS PUT US ON A GND TRACK SLIGHTLY S OF THE RWY 11R ILS COURSE. WE INTERCEPTED ILS GS WITH A320 APCH MODE ACTIVATED AUTOPLT #1 AND #2 ENGAGED. HAD TCASII TA AND AMBER ACFT SYMBOL APPEAR WITH APPROX MINUS 300 SHOWN FOR TGT. SCANNED VISUALLY AND SAW LIGHT ACFT HOOK IN FROM L SIDE APPROX 300 FT BELOW US AND JUST SLIGHTLY AFT OF OUR WING LINE. NO TA FROM ATC. I DISCUSSED THE INCIDENT WITH MSP APCH CTL SUPVR APPROX 15 MIN AFTER GETTING ON GND. THE CONSENSUS WAS THAT THE LIGHT ACFT WAS VERY SLIGHTLY OUT OF THE CLASS B AIRSPACE AND WAS LEGAL TO BE WHERE HE WAS. IN MY VIEW, IF THE CLASS B AIRSPACE IN MSP IS DESIGNED THAT WAY THEN WE SHOULD LOOK AT A RESTRUCTURING. TO HAVE BOTH ACFT LEGAL IN A HIGH CAPACITY ARENA SUCH AS MSP IS A CERTAIN RECIPE FOR A MID-AIR. WE NEED TO CHANGE THE MSP APCH AIRSPACE.
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.