# NTSB CHI06CA171: Croke Zenith CH 701, N701US, Brussels, WI, June 27, 2006

- Type: NTSB accident investigation
- Classification: Accident · Serious injuries · Data collection · Final report
- Date: June 27, 2006, 13:35 local (18:35 UTC)
- Place: Brussels, WI
- Coordinates: 44.77, -87.580001
- Nearby events: https://openairdocs.org/map.md?lat=44.7700&lon=-87.5800&mi=10
- Phase of flight: [Approach](https://openairdocs.org/ntsb-phases/500) (OpenAirDocs' grouping)
- Highest injury: Serious injuries
- Injuries: 1 serious
- Status: Completed, report October 3, 2006
- Report: Approved by Office Director
- Parties: Federal Aviation Administration - Milwaukee FSDO
- NTSB case key (mKey): 64183
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=CHI06CA171
- NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/64183/pdf
- Page: https://openairdocs.org/ntsb/CHI06CA171

## Probable cause

The pilot not maintaining clearance from the trees during final approach.  The trees located along the final approach course were a factor in the accident.

## Sequence of events

In NTSB's coding before 2008 (https://www.ntsb.gov/GILS/Documents/codman.pdf).

- In flight collision with object, approach - vfr pattern - base leg/base to final
  - clearance - not maintained, pilot in command (cause)
  - object - tree(s) (contributing factor)
- In flight collision with terrain/water, descent - uncontrolled
  - terrain condition - ground

## Analysis

The amateur-built airplane impacted trees while on final approach to the pilot's private airstrip.  The pilot reported that he has no memory of the accident.  According to the Federal Aviation Administration inspector who responded to the accident site, the airplane impacted a tree situated near the final approach path to the airstrip,

## Factual narrative

The amateur-built airplane impacted trees while on final approach to the pilot's private airstrip.  The pilot reported that he has no memory of the accident.  According to the Federal Aviation Administration inspector who responded to the accident site, the airplane impacted a tree situated near the final approach path to the airstrip,

## Aircraft

- Registration: [N701US](https://openairdocs.org/deregistered/N701US-2014-08-04), registration cancelled 2014-08-04, S/N 7-4514, built 2003 (OpenAirDocs)
- Reported make and model: Croke Zenith CH 701
- Registry model: [Croke Jonathon P ZENITH CH 701](https://openairdocs.org/model/croke-jonathon-p-zenith-ch-701) (registry code 05615YS) (OpenAirDocs)
- Registry engine: [Bombardier ROTAX (ALL)](https://openairdocs.org/engine/bombardier-rotax-all) (registry code 09050, reciprocating) (OpenAirDocs)
- Category: Airplane, amateur-built
- Serial number: 7-4514
- Airframe hours: 12
- Engines: Rotax 912 UL 80 horsepower reciprocating
- Damage: Substantial damage
- Flight: Personal, Part 91
- Airworthiness certificate: Special, Experimental (Special)
- Last inspection: Condition, June 1, 2006
- Departed: PVT, Brussels, WI
- Destination: PVT
- Airport: PVT, Private Airstrip

## Flight crew

As NTSB recorded them. NTSB leaves out names.

- Pilot; age 49; injuries: serious; private; airplane ratings: single-engine land; medical: class 3, with waivers/limitations; last flight review June 1, 2006; seat: left; flight hours: 100 total, 12 in this make and model, 100 as pilot in command, 13 in the last 90 days, 3 in the last 30 days, 0 in the last 24 hours

## Weather

- Conditions: Visual (VMC), Day
- Wind: 70° at 5 knots
- Visibility: 8 statute miles
- Lowest ceiling: none
- Temperature: 70 °F, dew point 57 °F
- Altimeter: 29.94 inHg
- Observed at: SUE, 12 nm away

## FAA reports on this event (1)

The FAA's own accident and incident reports, matched to the aircraft by N-number and date (OpenAirDocs).

- [Accident 20060627013949A](https://openairdocs.org/incident/20060627013949A), Jun 27, 2006: Amtr ZENITHCH701, Brussels, WI, Destroyed. (-23) Aircraft landing on Private airstrip impacted branches of tree located 100 feet beyond centerline of runway with left wingtip. Aerodynamic effect of…

## Other investigations on N701US (1)

From the NTSB's public API. Aircraft are matched to registry aircraft by N-number and event date, checked against the reported serial number, make and model; the registry's history has gaps, so older matches can be wrong. Compare the reported make and model.

- [NTSB CHI04LA014](https://openairdocs.org/ntsb/CHI04LA014), Oct 16, 2003: Croke Zenith CH 701 (N701US), Brussels, WI, substantial damage. Probable cause: A partial loss of engine power for undetermined reasons.

From the NTSB's public API. Aircraft are matched to registry aircraft by N-number and event date, checked against the reported serial number, make and model; the registry's history has gaps, so older matches can be wrong. Compare the reported make and model.

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