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Close proximity commuter small transport on visual approach to mdw and a second commuter small transport departing meigs.
| Attributes | |
| ACN | 190520 |
| Time | |
| Date | 199109 |
| Day | Mon |
| Local Time Of Day | 1201 To 1800 |
| Place | |
| Locale Reference | airport : mdw |
| State Reference | IL |
| Altitude | msl bound lower : 3500 msl bound upper : 3500 |
| Environment | |
| Flight Conditions | VMC |
| Light | Daylight |
| Aircraft 1 | |
| Controlling Facilities | tracon : ord |
| Operator | common carrier : air carrier |
| Make Model Name | Small Transport |
| Flight Phase | descent other |
| Route In Use | approach : visual |
| Flight Plan | IFR |
| Aircraft 2 | |
| Operator | common carrier : air carrier |
| Make Model Name | Small Transport, Low Wing, 2 Turboprop Eng |
| Flight Phase | climbout : intermediate altitude |
| Flight Plan | VFR |
| Person 1 | |
| Affiliation | company : air carrier |
| Function | flight crew : captain oversight : pic |
| Qualification | pilot : atp pilot : cfi |
| Experience | flight time last 90 days : 210 flight time total : 3150 flight time type : 2200 |
| ASRS Report | 190520 |
| Person 2 | |
| Affiliation | company : air carrier |
| Function | flight crew : first officer |
| Qualification | pilot : instrument pilot : commercial |
| Events | |
| Anomaly | conflict : nmac |
| Independent Detector | other flight crewa |
| Resolutory Action | none taken : insufficient time |
| Consequence | Other |
| Miss Distance | horizontal : 0 vertical : 100 |
| Supplementary | |
| Primary Problem | Flight Crew Human Performance |
Narrative:
We were cleared the visual to 22L at mdw and were descending through 3500 ft MSL. First officer said woo! And I looked and saw an small transport Y of another airline pass just under our nose. I believe he was banking. I'm not sure if it was to avoid us. We asked the controller if he had the small transport Y on scope, he said he saw something then turned his head away from scope and when he turned back the target was gone. I believe the small transport Y was VFR off meigs with no transponder on with mode C or the transponder and mode C were inoperative or, the small transport Y was VFR and just stayed too close to the ord TCA and mdw arsa boundaries. The problem is VFR aircraft too close to TCA and arsa airspace when not communicating with the facility.
Original NASA ASRS Text
Title: CLOSE PROX COMMUTER SMT ON VISUAL APCH TO MDW AND A SECOND COMMUTER SMT DEPARTING MEIGS.
Narrative: WE WERE CLRED THE VISUAL TO 22L AT MDW AND WERE DSNDING THROUGH 3500 FT MSL. FO SAID WOO! AND I LOOKED AND SAW AN SMT Y OF ANOTHER AIRLINE PASS JUST UNDER OUR NOSE. I BELIEVE HE WAS BANKING. I'M NOT SURE IF IT WAS TO AVOID US. WE ASKED THE CTLR IF HE HAD THE SMT Y ON SCOPE, HE SAID HE SAW SOMETHING THEN TURNED HIS HEAD AWAY FROM SCOPE AND WHEN HE TURNED BACK THE TARGET WAS GONE. I BELIEVE THE SMT Y WAS VFR OFF MEIGS WITH NO TRANSPONDER ON WITH MODE C OR THE TRANSPONDER AND MODE C WERE INOP OR, THE SMT Y WAS VFR AND JUST STAYED TOO CLOSE TO THE ORD TCA AND MDW ARSA BOUNDARIES. THE PROBLEM IS VFR ACFT TOO CLOSE TO TCA AND ARSA AIRSPACE WHEN NOT COMMUNICATING WITH THE FACILITY.
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.