# NTSB CHI86LA091: Cessna 210M, N761VX, While Lake Twp., MI, February 28, 1986

- Type: NTSB accident investigation
- Classification: Accident · No injuries · Limited investigation · Final report
- Date: February 27, 1986, 22:53 local (Feb 28, 1986, 03:53 UTC)
- Place: While Lake Twp., MI
- Coordinates: 42.499553, -83.289176 (estimated)
- Nearby events: https://openairdocs.org/map.md?lat=42.4996&lon=-83.2892&mi=10
- Phase of flight: [Approach](https://openairdocs.org/ntsb-phases/500) (OpenAirDocs' grouping)
- Highest injury: No injuries
- Injuries: 1 uninjured
- Status: Completed
- Report: Approved by Office Director
- NTSB case key (mKey): 13428
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=CHI86LA091
- NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/13428/pdf
- Page: https://openairdocs.org/ntsb/CHI86LA091

## Sequence of events

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

- Loss of engine power(total) - mech failure/malf, approach - faf/outer marker to threshold (ifr)
  - engine assembly,bearing - disintegrated (cause)
  - engine assembly,crankshaft - overload (cause)
- Forced landing, descent - emergency
- Hard landing, landing - flare/touchdown
- Nose gear collapsed, landing - flare/touchdown

## Analysis

THE ACFT WAS FOUR MILES FROM THE ARPT ON AN ILS APCH WHEN AN ENG FAILURE WAS EXPERIENCED. THE ACFT WAS DAMAGED DURING THE FORCED LANDING ON A FROZEN LAKE. POST ACCIDENT ENG TEARDOWN REVEALED THE ENG FAILURE ORIGINATED FROM MOVEMENT OF THE #2 MAIN BEARING. THIS RESULTED IN A BENDING OVERLOAD OF THE CRANKSHAFT AND EVENTUAL SEPARATION OF THE CRANKSHAFT AT THE #3 CHEEK.

## Aircraft

- Registration: [N761VX](https://openairdocs.org/deregistered/N761VX-2013-04-16), registration cancelled 2013-04-16, S/N 21062563, built 1978 (OpenAirDocs)
- Reported make and model: CESSNA 210M
- Registry model: [Cessna 210M](https://openairdocs.org/model/cessna-210m) (registry code 2073450) (OpenAirDocs)
- Registry engine: [Continental IO-520 series](https://openairdocs.org/engine/continental-io-520-series) (registry code 17032, reciprocating) (OpenAirDocs)
- Category: Airplane
- Serial number: 21062563
- Airframe hours: 6781
- Engines: CONTINENTAL IO-520-L4 300 horsepower reciprocating
- Damage: Substantial damage
- Flight: Positioning, Part 91
- Operator: Pdq Air Service, Inc.
- Airworthiness certificate: Standard, Normal
- Last inspection: Annual, March 2, 1985, 25 hours before
- Departed: DET, DETROIT, MI
- Destination: PTK, PONTIAC, MI
- Flight plan: IFR

## Flight crew

As NTSB recorded them. NTSB leaves out names.

- Pilot; age 29; commercial; airplane ratings: single-engine land, multi-engine land; instrument ratings: airplane; medical: class 2, valid medical--no waivers/lim.; seat: left; flight hours: 4,520 total, 515 in this make and model, 4,390 as pilot in command, 365 in the last 90 days, 10 in the last 24 hours

## Weather

- Conditions: Instrument (IMC), Night/dark
- Wind: 90° at 15 knots
- Visibility: 1 statute miles
- Lowest ceiling: 2,000 ft overcast
- Temperature: -0 °F, dew point -0 °F
- Altimeter: 29.00 inHg
- Observed at: PTK, 3 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 19860227036379A](https://openairdocs.org/incident/19860227036379A), Feb 27, 1986: Cessna 210M, White Lake Town, MI, Substantial damage. Engine quit, landed on frozen lake, sheared off nose gear. Crankshaft failed by unwarranted movement of bearing.

## Other investigations on N761VX (2)

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 MIA97LA118](https://openairdocs.org/ntsb/MIA97LA118), Apr 3, 1997: Cessna 210M (N761VX), Troy, AL, substantial damage. Probable cause: The pilot's failure to obtain the proper touchdown point during an emergency landing resulting in an overrun and subsequent nose over. A factor in the accident was a reported partial loss of engine…
- [NTSB MIA94LA187](https://openairdocs.org/ntsb/MIA94LA187), Jul 29, 1994: Cessna 210-M (N761VX), Orlando, FL, substantial damage. Probable cause: THE IMPROPER INSTALLATION OF A NOSE GEAR ACTUATOR HYDRAULIC LINE BY AN UNKNOWN PERSON THAT BENT IT AT INSTALLATION. CONTRIBUTING TO THE ACCIDENT WAS THE FAILURE OF THE LINE ALLOWING ALL HYDRAULIC…

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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