# NTSB CHI83LA081: Cessna 172 RG, N9916B, Green Bay, WI, January 14, 1983

- Type: NTSB accident investigation
- Classification: Accident · Serious injuries · Limited investigation · Final report
- Date: January 14, 1983, 09:39 local (15:39 UTC)
- Place: Green Bay, WI
- Coordinates: 44.539382, -88.050712 (estimated)
- Nearby events: https://openairdocs.org/map.md?lat=44.5394&lon=-88.0507&mi=10
- Phase of flight: [Enroute](https://openairdocs.org/ntsb-phases/400) (OpenAirDocs' grouping)
- Highest injury: Serious injuries
- Injuries: 1 serious, 1 minor
- Status: Completed
- Report: Approved by Office Director
- NTSB case key (mKey): 12067
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=CHI83LA081
- NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/12067/pdf
- Page: https://openairdocs.org/ntsb/CHI83LA081

## Sequence of events

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

- In flight encounter with weather, cruise - normal
  - wing - ice (contributing factor)
  - flight into known adverse weather - attempted, pilot in command (cause)
  - weather condition - icing conditions (contributing factor)
  - judgment - poor, pilot in command (cause)
  - weather forecast - disregarded, pilot in command (cause)
  - weather evaluation - poor, pilot in command (cause)
- In flight collision with terrain/water, approach - faf/outer marker to threshold (ifr)
  - window,flight compartment window/windshield - ice (contributing factor)
  - visual lookout - attempted, pilot in command (cause)
  - stall - inadvertent, pilot in command (cause)

## Analysis

THE ACFT COLLIDED WITH THE GROUND DURING AN ILS APPROACH. THE WEATHER WAS IMC AT THE TIME AND AN IFR FLT PLAN WAS FILED.THE PILOT WAS INSTRUMENT RATED AND HAD RECEIVED A WEATHER BRIEFING WHICH FORECAST ICING AND FREEZING DRIZZLE. THE PILOT TOLD THE WEATHER BRIEFER HE DID NOT THINK IT SOUNDED TOO BAD. THE FSS BRIEFER STATED ITS NOT THAT GREAT. THE PILOT ELECTED TO GO AND AFTER CLIMBING TO 8000 FT BEGAN TO GET STRUCTURAL ICING. LOWER ALT WAS TRIED WITHOUT SUCCESS IN AVOIDING ICING. AT THE SUGGESTION OF GREEN BAY ATCT THE PILOT ACCEPTED VECTORS TO AN ILS APPROACH TO AUSTIN STRAUBEL ARPT 50 MINUTES AFTER INITIAL DEPARTURE. THE PLT COULD NOT SEE THE RWY AT DECISION HEIGHT DUE TO WINDSHIELD ICE. VECTORSWERE GIVEN FOR ANOTHER APPROACH. THE PLT SAID HE HOPED TO SEE OUT OF THE SIDE WINDOW. AT DECISION HEIGHT HE SAW THE RWY TO THE LEFT OUT OF SIDE WINDOW. HE SAID HE TURNED LEFT AND THE RIGHT WING DROPPED AND HE CAME DOWN. THE ACFT CAME TO REST 500 FT SHORT OF THE RWY AND 100 TO 150 FT RIGHT OF CENTERLINE.

## Aircraft

- Registration: [N9916B](https://openairdocs.org/deregistered/N9916B-2009-08-12), registration cancelled 2009-08-12, S/N 172RG1079, built 1982 (OpenAirDocs)
- Reported make and model: CESSNA 172 RG
- Registry model: [Cessna 172RG](https://openairdocs.org/model/cessna-172rg) (registry code 2072438) (OpenAirDocs)
- Registry engine: [Lycoming O&VO-360 series](https://openairdocs.org/engine/lycoming-o-vo-360-series) (registry code 41514, reciprocating) (OpenAirDocs)
- Category: Airplane
- Serial number: 172RG1079
- Airframe hours: 174
- Engines: LYCOMING O-360-F1A6 180 horsepower reciprocating
- Damage: Substantial damage
- Flight: Personal, Part 91
- Registered owner: Avico North Ltd
- Airworthiness certificate: Standard, Normal
- Last inspection: 100 hour, October 29, 1982, 47 hours before
- Departed: MKE, MILWAUKEE, WI
- Destination: IMT, IRON MOUNTAIN, MI
- Flight plan: IFR
- Airport: GRB, Austin Straubel, runway 6R, 7,699 × 150 ft, concrete

## Flight crew

As NTSB recorded them. NTSB leaves out names.

- Pilot; age 33; private; airplane ratings: single-engine land; instrument ratings: airplane; medical: class 3, unknown; seat: left; flight hours: 369 total, 39 in this make and model, 226 as pilot in command, 41 in the last 90 days, 1 in the last 24 hours

## Weather

- Conditions: Instrument (IMC), Day
- Wind: 30° at 17 knots
- Lowest ceiling: 600 ft
- Temperature: 28 °F, dew point 27 °F
- Altimeter: 29.00 inHg
- Observed at: GRB

## 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 19830114001059A](https://openairdocs.org/incident/19830114001059A), Jan 14, 1983: Cessna 172G, Green Bay, WI, Substantial damage. Departed into known icing. Needed to land en route due to ice. Stalled and crached short of runway. Trip not advised

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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