# NTSB FTW86LA148: Cessna P210N, N731RR, Altus, OK, August 13, 1986

- Type: NTSB accident investigation
- Classification: Accident · Serious injuries · Limited investigation · Final report
- Date: August 13, 1986, 17:22 local (22:22 UTC)
- Place: Altus, OK
- Location: 34.6571° N, 99.3090° W: Placed by OpenAirDocs: center of Altus, OK, within about 6 miles (OpenAirDocs)
- Nearby events: https://openairdocs.org/map.md?lat=34.6571&lon=-99.3090&mi=10
- Phase of flight: [Enroute](https://openairdocs.org/ntsb-phases/400) (OpenAirDocs' grouping)
- Highest injury: Serious injuries
- Injuries: 2 serious, 1 uninjured
- Status: Completed
- Report: Approved by Office Director
- NTSB case key (mKey): 22074
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=FTW86LA148
- NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/22074/pdf
- Page: https://openairdocs.org/ntsb/FTW86LA148

## 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, cruise - normal
  - engine assembly,crankshaft - failure,total (cause)
- Forced landing, descent - emergency
  - approach control procedure - inaccurate (cause)
- Nose over, landing - roll
  - terrain condition - rough/uneven (contributing factor)
  - terrain condition - soft (contributing factor)

## Analysis

THE ENGINE FAILED AT 10,500 FEET MSL AND THE PILOT WAS VECTORED TO A SMALL PRIVATE SOD STRIP. HOWEVER, THIS STRIP HAD BEEN CLOSED AND PLOWED UP FOR ABOUT A YEAR AND WAS NOT LISTED ON THE CURRENT AERONAUTICAL CHARTS. THE PILOT WAS THEN REVECTORED TO ANOTHER AIRPORT WHICH ORIGINALLY WOULD HAVE BEEN WITHIN GLIDING DISTANCE FOR THE AIRCRAFT. HOWEVER, BY THIS TIME ALTITUDE WAS INADEQUATE AND THE PLT COULD NOT REACH THE AIRPORT. THE AIRCRAFT CRASH LANDED ABOUT SIX MILES SHORT IN A PLOWED FIELD WHERE THE AIRCRAFT NOSED OVER. POST ACCIDENT INVESTIGATION REVEALED THE ENGINE CRANK SHAFT HAD FAILED.

## Aircraft

- Registration: [N731RR](https://openairdocs.org/aircraft/N731RR), registered now, S/N P21000538, built 1980 (OpenAirDocs)
- Reported make and model: CESSNA P210N
- Registry model: [Cessna P210N](https://openairdocs.org/model/cessna-p210n) (registry code 2073454) (OpenAirDocs)
- Registry engine: [Continental TSIO-520 series](https://openairdocs.org/engine/continental-tsio-520-series) (registry code 17040, reciprocating) (OpenAirDocs)
- Category: Airplane
- Serial number: P21000538
- Airframe hours: 479
- Engines: CONTINENTAL TSIO-520-P 310 horsepower reciprocating
- Damage: Destroyed
- Flight: Personal, Part 91
- Operator: Victor S. Frigon
- Registered owner: Vico Leasing Co.
- Airworthiness certificate: Standard, Normal
- Last inspection: Annual, October 9, 1985
- Departed: ICT, WICHITA, KS
- Destination: MAF, MIDLAND, TX

## Flight crew

As NTSB recorded them. NTSB leaves out names.

- Pilot; private; airplane ratings: single-engine land; medical: class 2, valid medical--w/ waivers/lim; seat: left; flight hours: 803 total, 690 in this make and model, 710 as pilot in command, 32 in the last 90 days, 5 in the last 24 hours

## Weather

- Conditions: Visual (VMC), Day
- Wind: 150° at 10 knots, gusting 15
- Visibility: 20 statute miles
- Lowest ceiling: none
- Temperature: 97 °F, dew point 64 °F
- Altimeter: 29.00 inHg
- Observed at: LTS, 6 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 19860813040079A](https://openairdocs.org/incident/19860813040079A), Aug 13, 1986: Cessna P210N, Altus, OK, Destroyed. Engine failed en route. Vectored to a closed airport. Landed in a field and flipped over. Crankshaft broken.

## Other investigations on N731RR (1)

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 DFW06CA134](https://openairdocs.org/ntsb/DFW06CA134), May 21, 2006: Cessna P210N (N731RR), Weslaco, TX, substantial damage. Probable cause: The loss of engine power due to fuel exhaustion as a result of the pilot's inadequate preflight planning. A contributing factor was the lack of suitable terrain available to the pilot for the forced…

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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