# NTSB UNK64X0923: Cessna 182, N6243A, Shelbyville, TN, March 15, 1964

- Type: NTSB accident investigation
- Classification: Accident · No injuries · Closed
- Date: March 15, 1964
- Place: Shelbyville, TN · SHELBYVILLE, TN
- Location: 35.5013° N, 86.4529° W: Placed by OpenAirDocs: center of Shelbyville, TN, within about 6 miles (OpenAirDocs)
- Nearby events: https://openairdocs.org/map.md?lat=35.5013&lon=-86.4529&mi=10
- Phase of flight: [Enroute](https://openairdocs.org/ntsb-phases/400) (OpenAirDocs' grouping)
- Highest injury: No injuries
- Injuries: 2 uninjured
- Status: Completed, report September 8, 1964
- Report: Brief approved by the director
- NTSB case key (mKey): 185436
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=UNK64X0923
- Page: https://openairdocs.org/ntsb/UNK64X0923

## NTSB brief

```
----------------------------------------------------------------------------------------------------------------------------
 FILE    DATE          LOCATION          AIRCRAFT DATA       INJURIES       FLIGHT                        PILOT DATA
                                                               F  S M/N     PURPOSE
----------------------------------------------------------------------------------------------------------------------------
3-0760  64/3/15    SHELBYVILLE TENN    CESSNA 182          CR-  0  0  1  NONCOMMERCIAL             PRIVATE, AGE 40, 600
        TIME - 1450                    N6243A              PX-  0  0  1  PLEASURE/PERSONAL TRANSP  TOTAL HOURS, 400 IN TYPE,
                                       DAMAGE-SUBSTANTIAL  OT-  0  0  0                            NOT INSTRUMENT RATED.
        TYPE OF ACCIDENT                                         PHASE OF OPERATION
           ENGINE FAILURE OR MALFUNCTION                            IN FLIGHT: NORMAL CRUISE
           NOSE OVER/DOWN                                           LANDING: ROLL
        PROBABLE CAUSE(S)
           POWERPLANT - ENGINE STRUCTURE: VALVE ASSEMBLIES
           MISCELLANEOUS ACTS,CONDITIONS - MATERIAL FAILURE
           TERRAIN - WET,SOFT GROUND
        COMPLETE POWER LOSS - COMPLETE ENGINE FAILURE/FLAMEOUT-1 ENGINE
        EMERGENCY CIRCUMSTANCES - FORCED LANDING OFF AIRPORT ON LAND
        REMARKS- FAILURE OF NO 1 CYLINDER EXHAUST VALVE
```

## Aircraft

- Registration: [N6243A](https://openairdocs.org/aircraft/N6243A), registered now, S/N 33043, built 1956 (OpenAirDocs)
- Reported make and model: CESSNA 182
- Registry model: [Cessna 182](https://openairdocs.org/model/cessna-182) (registry code 2072702) (OpenAirDocs)
- Registry engine: [Continental O-470 series](https://openairdocs.org/engine/continental-o-470-series) (registry code 17026, reciprocating) (OpenAirDocs)
- Category: Airplane
- Engines: reciprocating
- Damage: Substantial damage

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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