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Cpr helicopter involved in near midair collision with unidented small jet while in class D airspace at 1700 ft MSL.
| Attributes | |
| ACN | 433585 |
| Time | |
| Date | 199904 |
| Day | Fri |
| Local Time Of Day | 1201 To 1800 |
| Place | |
| Locale Reference | airport : mmu.airport |
| State Reference | NJ |
| Altitude | msl bound lower : 1500 msl bound upper : 1700 |
| Environment | |
| Flight Conditions | VMC |
| Weather Elements | Rain |
| Light | Daylight |
| Aircraft 1 | |
| Controlling Facilities | tower : mmu.tower |
| Operator | general aviation : corporate |
| Make Model Name | Helicopter |
| Operating Under FAR Part | Part 91 |
| Navigation In Use | other |
| Flight Phase | climbout : vacating altitude cruise : level |
| Route In Use | arrival : vfr |
| Flight Plan | VFR |
| Aircraft 2 | |
| Controlling Facilities | tower : mmu.tower |
| Operator | general aviation : corporate |
| Make Model Name | Any Unknown or Unlisted Aircraft Manufacturer |
| Operating Under FAR Part | Part 91 |
| Navigation In Use | other |
| Flight Phase | descent : vacating altitude |
| Person 1 | |
| Affiliation | company : corporate |
| Function | flight crew : captain oversight : pic |
| Qualification | pilot : atp pilot : multi engine |
| Experience | flight time last 90 days : 90 flight time total : 11900 flight time type : 3400 |
| ASRS Report | 433585 |
| Person 2 | |
| Affiliation | company : corporate |
| Function | flight crew : first officer |
| Qualification | pilot : commercial pilot : instrument pilot : multi engine |
| Events | |
| Anomaly | airspace violation : entry conflict : nmac non adherence : published procedure non adherence : far non adherence : required legal separation |
| Independent Detector | aircraft equipment : tcas |
| Resolutory Action | flight crew : took evasive action |
| Miss Distance | horizontal : 0 vertical : 300 |
| Supplementary | |
| Problem Areas | Flight Crew Human Performance ATC Human Performance |
| Primary Problem | Flight Crew Human Performance |
| Air Traffic Incident | Pilot Deviation |
Narrative:
Cleared through mmu class D airspace 1700 ft to prv heliport 3 NM northwest of airport. No TA's from tower. Received TA on our tcasi traffic indicating 400 ft above and descending, 2 mi to approximately our right front. Aircraft (bizjet) came into view in a matter of seconds at 2 O'clock position. We began a descent and it appeared the jet abruptly leveled (perhaps in response to an RA) and passed overhead. End of conflict. Tower told us it appeared to continue descent to 1800 ft but they weren't working it.
Original NASA ASRS Text
Title: CPR HELI INVOLVED IN NMAC WITH UNIDENTED SMALL JET WHILE IN CLASS D AIRSPACE AT 1700 FT MSL.
Narrative: CLRED THROUGH MMU CLASS D AIRSPACE 1700 FT TO PRV HELIPORT 3 NM NW OF ARPT. NO TA'S FROM TWR. RECEIVED TA ON OUR TCASI TFC INDICATING 400 FT ABOVE AND DSNDING, 2 MI TO APPROX OUR R FRONT. ACFT (BIZJET) CAME INTO VIEW IN A MATTER OF SECONDS AT 2 O'CLOCK POS. WE BEGAN A DSCNT AND IT APPEARED THE JET ABRUPTLY LEVELED (PERHAPS IN RESPONSE TO AN RA) AND PASSED OVERHEAD. END OF CONFLICT. TWR TOLD US IT APPEARED TO CONTINUE DSCNT TO 1800 FT BUT THEY WEREN'T WORKING IT.
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.