# NTSB CHI83FA258: Cessna T210L, N732CD, Porter Township, WI, June 15, 1983

- Type: NTSB accident investigation
- Classification: Accident · Fatal · Field investigation · Final report
- Date: June 15, 1983, 16:26 local (21:26 UTC)
- Place: Porter Township, WI
- Coordinates: 42.679141, -89.009918 (estimated)
- Nearby events: https://openairdocs.org/map.md?lat=42.6791&lon=-89.0099&mi=10
- Phase of flight: [Maneuvering](https://openairdocs.org/ntsb-phases/450) (OpenAirDocs' grouping)
- Highest injury: Fatal
- Injuries: 2 fatal
- Status: Completed
- Report: Approved by Office Director
- NTSB case key (mKey): 11998
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=CHI83FA258
- NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/11998/pdf
- Page: https://openairdocs.org/ntsb/CHI83FA258

## Sequence of events

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

- Airframe/component/system failure/malfunction, maneuvering
  - maneuver - excessive (contributing factor)
  - design stress limits of aircraft - exceeded, pilot in command (cause)
  - wing - overload
  - flight control,aileron - overload
  - door,exterior crew - overload
- In flight collision with terrain/water, descent - uncontrolled

## Analysis

BOTH OCCUPANTS WERE RATED PLTS. THE PLT IN THE RIGHT FRONT SEAT OF THE ACFT HAD APPLIED FOR MEMBERSHIP WITH THE ORGANIZATION THAT OWNED THE PLANE. HE MAY HAVE BEEN RECEIVING INFORMAL INSTRUCTION IN THE OPERATION OF THE ACFT. DURING FLT, THE ACFT WAS OBSERVED IN MANEUVERS WHICH WERE DESCRIBED AS STALLS. AN AIRLINE PLT WHO OBSERVED THE STALLS DESCRIBED THEM AS VIOLENT. AS THE ACFT'S NOSE CAME THRU THE HORIZON, IT REPORTEDLY DROPPED MORE THAN 45 DEG & THE ACFT ENTERED A RAPID LEFT BANK. ANOTHER WITNESS WHO SAW THE ACCIDENT, SAID THE ACFT WENT INTO A 3 TURN SPIN. WHEN THE PLT WAS RECOVERING, THE WITNESS HEARD A 'POP' & SAW SOMETHING TRAIL FROM THE ACFT. ALSO, HE HEARD THE ENG ACCELERATE DURING THE OCCURRENCE. AFTER THE ACFT CRASHED, AN EXAM OF THE CRASH AREA REVEALED THE ACFT BROKE UP IN FLT. MAJOR COMPONENTS THAT SEPARATED INCLUDED A 6 FT OUTBOARD SECTION OF THE LEFT WING, RIGHT AILERON & THE RIGHT DOOR. ALL SEPARATED METAL STRUCTURE DISPLAYED BENDING, TEARING & OVERLOAD FAILURE INDICATIONS.

## Aircraft

- Registration: [N732CD](https://openairdocs.org/deregistered/N732CD-1984-03-30), registration cancelled 1984-03-30, S/N 21061402 (OpenAirDocs)
- Reported make and model: CESSNA T210L
- Registry model: [Cessna T210L](https://openairdocs.org/model/cessna-t210l) (registry code 2073449) (OpenAirDocs)
- Category: Airplane
- Engines: CONTINENTAL TSIO-520 285 horsepower reciprocating
- Damage: Destroyed
- Flight: Personal, Part 91
- Departed: JVL, JANESVILLE, WI
- Destination: MSN, MADISON, WI

## Flight crew

As NTSB recorded them. NTSB leaves out names.

- Pilot; age 53; private; airplane ratings: single-engine land, multi-engine land, single-engine sea; instrument ratings: airplane; medical: unknown, unknown; flight hours: 1,430 total, 112 in this make and model, 90 in the last 90 days

## Weather

- Conditions: Visual (VMC), Day
- Wind: 180° at 18 knots
- Visibility: 15 statute miles
- Lowest ceiling: 15,000 ft broken
- Temperature: -0 °F, dew point -0 °F
- Altimeter: 29.00 inHg
- Observed at: JVL

## 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 19830615025229A](https://openairdocs.org/incident/19830615025229A), Jun 15, 1983: Cessna T210L, Porter Township, WI, Destroyed, 1 fatal. Aircraft was observed in a spin and witnesses saw aircraft parts fall from plane

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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