# NTSB CHI91DEP02: Cessna 172P, N64406, Hayward, WI, November 9, 1990

- Type: NTSB accident investigation
- Classification: Accident · Serious injuries · Final report
- Date: November 9, 1990, 01:22 local (07:22 UTC)
- Place: Hayward, WI
- Coordinates: 46.010425, -91.480773 (estimated)
- Nearby events: https://openairdocs.org/map.md?lat=46.0104&lon=-91.4808&mi=10
- Phase of flight: [Enroute](https://openairdocs.org/ntsb-phases/400) (OpenAirDocs' grouping)
- Highest injury: Serious injuries
- Injuries: 1 serious
- Status: Completed, report March 12, 1993
- Report: Approved by Office Director
- NTSB case key (mKey): 14835
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=CHI91DEP02
- NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/14835/pdf
- Page: https://openairdocs.org/ntsb/CHI91DEP02

## Probable cause

THE PILOT-IN-COMMAND'S INTENTIONAL FLIGHT INTO KNOWN ADVERSE WEATHER.

## Sequence of events

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

- In flight encounter with weather, cruise
  - flight into known adverse weather - intentional, pilot in command (cause)
- In flight collision with object, cruise
  - light condition - dark night
  - weather condition - clouds
  - object - tree(s)
  - proper altitude - not maintained, pilot in command (cause)
- In flight collision with terrain/water, descent - uncontrolled

## Analysis

THE PRIVATE NON-INSTRUMENT RATED PILOT RECEIVED A 'VFR NOT RECOMMENDED' WEATHER BRIEFING FOR THE PROPOSED FLIGHT INCLUDING THE FORECAST FOR WIDESPREAD IMC CONDITIONS.  THE PILOT REPORTED ENCOUNTERING SNOW SHOWERS DURING THE NIGHT FLIGHT, HOWEVER DOES NOT RECALL DETAILS OF THE IMPACT.  HE MADE ONE INFLIGHT CALL TO A FSS INQUIRING ABOUT THE WEATHER.  IMPACT SCARS INDICATE CONTROLLED FLIGHT INTO THE TREES AND TERRAIN.

## Aircraft

- Registration: [N64406](https://openairdocs.org/deregistered/N64406-1992-02-03), registration cancelled 1992-02-03, S/N 17275556 (OpenAirDocs)
- Reported make and model: CESSNA 172P
- Registry model: [Cessna 172P](https://openairdocs.org/model/cessna-172p) (registry code 2072436) (OpenAirDocs)
- Category: Airplane
- Serial number: 17275556
- Engines: LYCOMING O-320-02J 160 horsepower reciprocating
- Damage: Destroyed
- Flight: Personal, Part 91
- Registered owner: Crystal Shamrock, Inc
- Airworthiness certificate: Standard, Normal; Standard, Utility
- Departed: MQT, MARQUETTE, MI
- Destination: MIC, CRYSTAL, MN
- Flight plan: VFR
- Airport: 06

## Flight crew

As NTSB recorded them. NTSB leaves out names.

- Pilot; age 39; private; airplane ratings: single-engine land; medical: class 3, valid medical--no waivers/lim.; flight hours: 184 total, 86 in this make and model

## Weather

- Conditions: Instrument (IMC), Night/dark
- Wind: 190° at 7 knots
- Visibility: 2 statute miles
- Temperature: 30 °F, dew point -0 °F
- Observed at: MQT, 160 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 19901109052229A](https://openairdocs.org/incident/19901109052229A), Nov 9, 1990: Cessna 172P, Hayward, WI, Destroyed. Struck trees trying to maintain ground contact at night in snow rain and fog. Carb icing conditions existed.

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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