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Training flight contacted cos TRACON to enter arsa and given a squawk code. Close to airport training flight had near midair collision with medium large transport air carrier.
| Attributes | |
| ACN | 188246 |
| Time | |
| Date | 199109 |
| Day | Thu |
| Local Time Of Day | 0601 To 1200 |
| Place | |
| Locale Reference | atc facility : cos |
| State Reference | CO |
| Altitude | msl bound lower : 8000 msl bound upper : 8000 |
| Environment | |
| Flight Conditions | VMC |
| Light | Daylight |
| Aircraft 1 | |
| Controlling Facilities | tracon : cos |
| Operator | general aviation : instructional |
| Make Model Name | Small Aircraft, High Wing, 1 Eng, Fixed Gear |
| Flight Phase | cruise other descent : approach |
| Route In Use | arrival other |
| Flight Plan | VFR |
| Aircraft 2 | |
| Operator | common carrier : air carrier |
| Make Model Name | Medium Large Transport, Low Wing, 2 Turbojet Eng |
| Flight Phase | descent : approach |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | Other |
| Function | instruction : instructor |
| Qualification | pilot : commercial pilot : instrument pilot : cfi |
| Experience | flight time last 90 days : 100 flight time total : 550 flight time type : 400 |
| ASRS Report | 188246 |
| Person 2 | |
| Affiliation | Other |
| Function | flight crew : single pilot instruction : trainee |
| Qualification | other other : other |
| Events | |
| Anomaly | aircraft equipment problem : less severe conflict : nmac other anomaly other |
| Independent Detector | other flight crewa |
| Resolutory Action | flight crew : took evasive action none taken : detected after the fact |
| Consequence | Other |
| Miss Distance | horizontal : 500 vertical : 0 |
| Supplementary | |
| Primary Problem | Aircraft |
| Air Traffic Incident | Pilot Deviation other |
Narrative:
Approximately 20 mi north of the airport (edge of outer area of arsa), my student contacted approach controller (with ATIS) to enter the arsa and land at the colorado springs airport. Approach advised 'squawk XXXX and standby.' having established radio contact (per aim paragraph 101 M) we proceeded into the arsa towards the airport at 8000 ft MSL. At about 5 mi north of the airport, I was about to query ATC, having heard no further instruction since we were told to standby. At that time, an medium large transport passed approximately 500 ft off our right wing at our altitude, on final approach for runway 17. I made an immediate left turn and queried ATC as to what they intended to do with us. At that time, we were advised to check our squawk. I proceeded to recycle the transponder and verify the code. It was correct. ATC then advised that the transponder was reading 2000 ft low (approximately 6000 ft MSL) and on a different code. We were then given instruction to proceed on final approach for runway 17. Approach control then handed us off to tower, and the flight landed without further incident. It is my belief that the problem arose from a combination of 2 things. First of all, the problem with the transponder caused confusion for ATC. Secondly, ATC would seem to have forgotten about us, and that they established radio contact with us, thus allowing us to enter the arsa.
Original NASA ASRS Text
Title: TRAINING FLT CONTACTED COS TRACON TO ENTER ARSA AND GIVEN A SQUAWK CODE. CLOSE TO ARPT TRAINING FLT HAD NMAC WITH MLG ACR.
Narrative: APPROX 20 MI N OF THE ARPT (EDGE OF OUTER AREA OF ARSA), MY STUDENT CONTACTED APCH CTLR (WITH ATIS) TO ENTER THE ARSA AND LAND AT THE COLORADO SPRINGS ARPT. APCH ADVISED 'SQUAWK XXXX AND STANDBY.' HAVING ESTABLISHED RADIO CONTACT (PER AIM PARAGRAPH 101 M) WE PROCEEDED INTO THE ARSA TOWARDS THE ARPT AT 8000 FT MSL. AT ABOUT 5 MI N OF THE ARPT, I WAS ABOUT TO QUERY ATC, HAVING HEARD NO FURTHER INSTRUCTION SINCE WE WERE TOLD TO STANDBY. AT THAT TIME, AN MLG PASSED APPROX 500 FT OFF OUR R WING AT OUR ALT, ON FINAL APCH FOR RWY 17. I MADE AN IMMEDIATE L TURN AND QUERIED ATC AS TO WHAT THEY INTENDED TO DO WITH US. AT THAT TIME, WE WERE ADVISED TO CHK OUR SQUAWK. I PROCEEDED TO RECYCLE THE TRANSPONDER AND VERIFY THE CODE. IT WAS CORRECT. ATC THEN ADVISED THAT THE TRANSPONDER WAS READING 2000 FT LOW (APPROX 6000 FT MSL) AND ON A DIFFERENT CODE. WE WERE THEN GIVEN INSTRUCTION TO PROCEED ON FINAL APCH FOR RWY 17. APCH CTL THEN HANDED US OFF TO TWR, AND THE FLT LANDED WITHOUT FURTHER INCIDENT. IT IS MY BELIEF THAT THE PROBLEM AROSE FROM A COMBINATION OF 2 THINGS. FIRST OF ALL, THE PROBLEM WITH THE TRANSPONDER CAUSED CONFUSION FOR ATC. SECONDLY, ATC WOULD SEEM TO HAVE FORGOTTEN ABOUT US, AND THAT THEY ESTABLISHED RADIO CONTACT WITH US, THUS ALLOWING US TO ENTER THE ARSA.
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.