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Air carrier takes evasive action to avoid NORDO light aircraft on final to parallel runway. No advisories given by ATC.
| Attributes | |
| ACN | 444777 |
| Time | |
| Date | 199908 |
| Day | Tue |
| Local Time Of Day | 1201 To 1800 |
| Place | |
| Locale Reference | airport : cos.airport |
| State Reference | CO |
| Altitude | agl single value : 900 |
| Environment | |
| Flight Conditions | Mixed |
| Light | Daylight |
| Aircraft 1 | |
| Controlling Facilities | tracon : cos.tracon tower : cos.tower tower : egkk.tower |
| Operator | common carrier : air carrier |
| Make Model Name | A320 |
| Operating Under FAR Part | Part 121 |
| Navigation In Use | ils localizer & glide slope : 17l other |
| Flight Phase | descent : vacating altitude descent : approach |
| Route In Use | approach : instrument precision |
| Flight Plan | IFR |
| Aircraft 2 | |
| Controlling Facilities | tracon : cos.tracon tower : cos.tower |
| Operator | general aviation : personal |
| Make Model Name | Small Aircraft, Low Wing, 1 Eng, Fixed Gear |
| Operating Under FAR Part | Part 91 |
| Flight Phase | descent : approach |
| Route In Use | approach : visual |
| Flight Plan | None |
| Person 1 | |
| Affiliation | company : air carrier |
| Function | flight crew : first officer |
| Qualification | pilot : atp pilot : multi engine |
| Experience | flight time last 90 days : 150 flight time total : 11500 flight time type : 6500 |
| ASRS Report | 444777 |
| Person 2 | |
| Affiliation | company : air carrier |
| Function | flight crew : captain oversight : pic |
| Qualification | pilot : atp pilot : multi engine |
| Events | |
| Anomaly | conflict : airborne critical non adherence : published procedure |
| Independent Detector | other flight crewa |
| Resolutory Action | flight crew : took evasive action |
| Consequence | faa : reviewed incident with flight crew |
| Miss Distance | horizontal : 1000 vertical : 100 |
| Supplementary | |
| Problem Areas | ATC Human Performance |
| Primary Problem | ATC Human Performance |
| Air Traffic Incident | Operational Error |
Narrative:
1 mi final cos. Spotted small low wing aircraft 11 O'clock position. Moved closer 10 O'clock - 9 O'clock slightly above. Did not take evasive action and continued towards us. We veered off 30 degrees from ILS and descended slightly to avoid. It passed behind us and landed runway 17R. No transponder and had radio problems. Tower failed to notify us of traffic. They had a primary target on the small aircraft. There was a lot of small aircraft traffic at meadowland airport. A lot without xponders, not a lot of help from approach or tower with traffic.
Original NASA ASRS Text
Title: ACR TAKES EVASIVE ACTION TO AVOID NORDO LIGHT ACFT ON FINAL TO PARALLEL RWY. NO ADVISORIES GIVEN BY ATC.
Narrative: 1 MI FINAL COS. SPOTTED SMALL LOW WING ACFT 11 O'CLOCK POS. MOVED CLOSER 10 O'CLOCK - 9 O'CLOCK SLIGHTLY ABOVE. DID NOT TAKE EVASIVE ACTION AND CONTINUED TOWARDS US. WE VEERED OFF 30 DEGS FROM ILS AND DSNDED SLIGHTLY TO AVOID. IT PASSED BEHIND US AND LANDED RWY 17R. NO XPONDER AND HAD RADIO PROBS. TWR FAILED TO NOTIFY US OF TFC. THEY HAD A PRIMARY TARGET ON THE SMALL ACFT. THERE WAS A LOT OF SMALL ACFT TFC AT MEADOWLAND ARPT. A LOT WITHOUT XPONDERS, NOT A LOT OF HELP FROM APCH OR TWR WITH TFC.
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.