# NTSB CHI84LA284: Cessna 172M, N6700H, Lake Geneva, WI, July 8, 1984

- Type: NTSB accident investigation
- Classification: Accident · No injuries · Limited investigation · Final report
- Date: July 8, 1984, 12:15 local (17:15 UTC)
- Place: Lake Geneva, WI
- Coordinates: 42.579101, -88.420829 (estimated)
- Nearby events: https://openairdocs.org/map.md?lat=42.5791&lon=-88.4208&mi=10
- Phase of flight: [Approach](https://openairdocs.org/ntsb-phases/500) (OpenAirDocs' grouping)
- Highest injury: No injuries
- Injuries: 4 uninjured
- Status: Completed
- Report: Approved by Office Director
- NTSB case key (mKey): 12688
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=CHI84LA284
- NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/12688/pdf
- Page: https://openairdocs.org/ntsb/CHI84LA284

## Sequence of events

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

- Loss of control - in flight, approach - vfr pattern - final approach
  - weather condition - turbulence (contributing factor)
  - control interference - inadvertent, passenger (cause)
  - remedial action - inadequate, pilot in command (cause)
- Hard landing, landing
  - recovery from bounced landing - performed, pilot in command
- Nose gear collapsed, landing
  - landing gear,nose gear - overload

## Analysis

ACCORDING TO THE PLT, HE WAS ON A SHORT FINAL APCH TO LAND WHEN THE ACFT ENCOUNTERED SUDDEN TURBULENCE. AT THAT TIME, THE PASSENGER IN THE RIGHT FRONT SEAT LURCHED AGAINST THE CONTROL WHEEL, CAUSING THE NOSE TO PITCH DOWN & THE ACFT TO BANK LEFT. SUBSEQUENTLY, THE ACFT BOUNCED ON THE RWY & WAS THEN LANDED. AFTER A SHORT ROLL, THE NOSE GEAR COLLAPSED. THE PLT REPORTED THAT THE ARPT WAS LOCATED IN THE BOTTOM OF A SMALL VALLEY & HAD TREES ALONG THE SOUTH SIDE OF THE RWY. ABOUT 1 HR AFTER THE OCCURRENCE, 2 OTHER PLTS FLEW THERE & BOTH STATED THAT THEY ENCOUNTERED TURBULENCE & WIND SHEAR. ALSO, THE PLT OF N6700H STATED THAT THE RIGHT FRONT SEAT PLT WAS USING THE SHOULDER HARNESS & HAD HIS SEAT FORWARD FOR MORE LEG ROOM FOR A PASSENGER IN THE BACK.

## Aircraft

- Registration: [N6700H](https://openairdocs.org/aircraft/N6700H), registered now, S/N 17265543, built 1975 (OpenAirDocs)
- Reported make and model: CESSNA 172M
- Registry model: [Cessna 172M](https://openairdocs.org/model/cessna-172m) (registry code 2072418) (OpenAirDocs)
- Registry engine: [Lycoming 0-320 series](https://openairdocs.org/engine/lycoming-0-320-series) (registry code 41508, reciprocating) (OpenAirDocs)
- Category: Airplane
- Serial number: 17265543
- Airframe hours: 4491
- Engines: LYCOMING O-320-E2D 150 horsepower reciprocating
- Damage: Substantial damage
- Flight: Personal, Part 91
- Registered owner: Stick & Rudder Club, Inc.
- Airworthiness certificate: Standard, Normal
- Last inspection: Annual, October 20, 1983
- Departed: UGN, WAUKEGAN, IL
- Airport: CO2, Americana, runway 23, 4,000 × 75 ft, asphalt

## Flight crew

As NTSB recorded them. NTSB leaves out names.

- Pilot; age 50; private; airplane ratings: single-engine land; medical: class 3, valid medical--no waivers/lim.; seat: left; flight hours: 302 total, 101 in this make and model, 190 as pilot in command, 2 in the last 90 days, 1 in the last 24 hours

## Weather

- Conditions: Visual (VMC), Day
- Wind: 170° at 15 knots, gusting 25
- Visibility: 12 statute miles
- Lowest ceiling: 10,000 ft broken
- Altimeter: 30.00 inHg
- Observed at: JVL, 29 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 19840708033659A](https://openairdocs.org/incident/19840708033659A), Jul 8, 1984: Cessna 172M, Lake Geneva, WI, Substantial damage. Made a hard landing. Impact collapsed the nose wheel. Blamed severe turbulence during leveloff.

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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