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HU16 pilot on approach at 61B, lake unicom, encounters near midair collision with atx helicopter on airport unicom at 61B.
| Attributes | |
| ACN | 500172 |
| Time | |
| Date | 200102 |
| Day | Sun |
| Local Time Of Day | 1201 To 1800 |
| Place | |
| Locale Reference | airport : 61b.airport |
| State Reference | NV |
| Altitude | msl single value : 3200 |
| Environment | |
| Flight Conditions | VMC |
| Light | Daylight |
| Aircraft 1 | |
| Operator | general aviation : personal |
| Make Model Name | Grumman Corp Undifferentiated or Other Model |
| Operating Under FAR Part | Part 91 |
| Flight Phase | descent : approach |
| Route In Use | approach : traffic pattern |
| Flight Plan | None |
| Aircraft 2 | |
| Operator | common carrier : air taxi |
| Make Model Name | Helicopter |
| Operating Under FAR Part | Part 91 |
| Flight Phase | descent : approach |
| Route In Use | approach : traffic pattern |
| Person 1 | |
| Affiliation | other |
| Function | flight crew : captain |
| Qualification | pilot : multi engine pilot : cfi pilot : atp pilot : flight engineer |
| Experience | flight time last 90 days : 300 flight time total : 17000 flight time type : 400 |
| ASRS Report | 500172 |
| Person 2 | |
| Affiliation | company : air taxi |
| Function | flight crew : single pilot |
| Qualification | pilot : commercial |
| Events | |
| Anomaly | non adherence : published procedure non adherence : far other spatial deviation |
| Independent Detector | other flight crewa |
| Miss Distance | horizontal : 100 vertical : 100 |
| Supplementary | |
| Problem Areas | Flight Crew Human Performance Airport |
Narrative:
We were approaching 61B for landing. The helicopter passed below and behind our 5 O'clock position. We had announced our position on lake frequency 122.75, and immediately changed over to 122.70 for unicom advisories. We were on a steady course and altitude. Helicopter failed to see and avoid until last moment. He was on boulder dam frequency 120.65. There are numerous operations in the boulder dam vicinity. The necessity to monitor appropriate frequencys is crucial. However, the primary responsibility of every pilot is 'see and avoid,' due to the close proximity of lake, dam, and airport, there can be gaps and/or lapses in monitoring.
Original NASA ASRS Text
Title: HU16 PLT ON APCH AT 61B, LAKE UNICOM, ENCOUNTERS NMAC WITH ATX HELI ON ARPT UNICOM AT 61B.
Narrative: WE WERE APCHING 61B FOR LNDG. THE HELI PASSED BELOW AND BEHIND OUR 5 O'CLOCK POS. WE HAD ANNOUNCED OUR POS ON LAKE FREQ 122.75, AND IMMEDIATELY CHANGED OVER TO 122.70 FOR UNICOM ADVISORIES. WE WERE ON A STEADY COURSE AND ALT. HELI FAILED TO SEE AND AVOID UNTIL LAST MOMENT. HE WAS ON BOULDER DAM FREQ 120.65. THERE ARE NUMEROUS OPS IN THE BOULDER DAM VICINITY. THE NECESSITY TO MONITOR APPROPRIATE FREQS IS CRUCIAL. HOWEVER, THE PRIMARY RESPONSIBILITY OF EVERY PLT IS 'SEE AND AVOID,' DUE TO THE CLOSE PROX OF LAKE, DAM, AND ARPT, THERE CAN BE GAPS AND/OR LAPSES IN MONITORING.
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.