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Pilot reports an near midair collision at apa when the other aircraft overshot final approach course on a parallel runway at 600 ft. Both aircraft on different ATC frequencys.
| Attributes | |
| ACN | 768668 |
| Time | |
| Date | 200712 |
| Local Time Of Day | 0601 To 1200 |
| Place | |
| Locale Reference | airport : apa.airport |
| State Reference | CA |
| Altitude | agl bound lower : 500 agl bound upper : 600 |
| Environment | |
| Flight Conditions | VMC |
| Light | Daylight |
| Aircraft 1 | |
| Controlling Facilities | tower : apa.tower |
| Operator | common carrier : air carrier other |
| Make Model Name | Skyhawk 172/Cutlass 172 |
| Operating Under FAR Part | Part 91 |
| Flight Phase | descent : approach ground : maintenance |
| Route In Use | approach : traffic pattern |
| Flight Plan | None |
| Aircraft 2 | |
| Controlling Facilities | tower : apa.tower |
| Operator | general aviation : personal |
| Make Model Name | Skyhawk 172/Cutlass 172 |
| Operating Under FAR Part | Part 91 |
| Flight Phase | descent : approach |
| Route In Use | approach : traffic pattern |
| Person 1 | |
| Affiliation | other |
| Function | flight crew : single pilot |
| Qualification | pilot : instrument pilot : commercial |
| Experience | flight time last 90 days : 19 flight time total : 264 flight time type : 30 |
| ASRS Report | 768668 |
| Events | |
| Anomaly | conflict : nmac |
| Independent Detector | other flight crewa |
| Resolutory Action | flight crew : took evasive action |
| Miss Distance | horizontal : 100 vertical : 100 |
| Supplementary | |
| Problem Areas | Flight Crew Human Performance ATC Human Performance Airport |
| Primary Problem | Flight Crew Human Performance |
Narrative:
My designated examiner and I were turning from base to final when another C172 skyhawk flew over us and cut in front of us. The other aircraft missed us by no more than 100 ft vertically and 100 ft horizontally. As it turns out the other C172 overshot his approach for the parallel runway. I was operating on 1 tower frequency while the other C172 was on the other frequency. When I saw the other C172 overtake me I pulled back on the throttle and input the controls to evade to the right enough to not be an issue for that C172; or any other traffic in the pattern. The C172 did meander over to his cleared runway and I did a routine landing. Possible issues: split tower frequencys; lack of airport environment familiarity by other pilot; lack of TA. When I told the tower that I had been cut off it seemed that they didn't even know what I meant.
Original NASA ASRS Text
Title: PLT REPORTS AN NMAC AT APA WHEN THE OTHER ACFT OVERSHOT FINAL APCH COURSE ON A PARALLEL RWY AT 600 FT. BOTH ACFT ON DIFFERENT ATC FREQS.
Narrative: MY DESIGNATED EXAMINER AND I WERE TURNING FROM BASE TO FINAL WHEN ANOTHER C172 SKYHAWK FLEW OVER US AND CUT IN FRONT OF US. THE OTHER ACFT MISSED US BY NO MORE THAN 100 FT VERTICALLY AND 100 FT HORIZONTALLY. AS IT TURNS OUT THE OTHER C172 OVERSHOT HIS APCH FOR THE PARALLEL RWY. I WAS OPERATING ON 1 TWR FREQ WHILE THE OTHER C172 WAS ON THE OTHER FREQ. WHEN I SAW THE OTHER C172 OVERTAKE ME I PULLED BACK ON THE THROTTLE AND INPUT THE CTLS TO EVADE TO THE R ENOUGH TO NOT BE AN ISSUE FOR THAT C172; OR ANY OTHER TFC IN THE PATTERN. THE C172 DID MEANDER OVER TO HIS CLRED RWY AND I DID A ROUTINE LNDG. POSSIBLE ISSUES: SPLIT TWR FREQS; LACK OF ARPT ENVIRONMENT FAMILIARITY BY OTHER PLT; LACK OF TA. WHEN I TOLD THE TWR THAT I HAD BEEN CUT OFF IT SEEMED THAT THEY DIDN'T EVEN KNOW WHAT I MEANT.
Data retrieved from NASA's ASRS site as of January 2009 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.