# NTSB MIA66F0372: Navion A, N4896K, Cumblnd City, TN, December 23, 1965

- Type: NTSB accident investigation
- Classification: Accident · Minor injuries · Closed
- Date: December 23, 1965
- Place: Cumblnd City, TN · CUMBLND CITY, TN
- Phase of flight: [Enroute](https://openairdocs.org/ntsb-phases/400) (OpenAirDocs' grouping)
- Highest injury: Minor injuries
- Injuries: 3 minor
- Status: Completed, report February 4, 1966
- Report: Brief approved by the director
- NTSB case key (mKey): 174235
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=MIA66F0372
- Page: https://openairdocs.org/ntsb/MIA66F0372

## NTSB brief

```
----------------------------------------------------------------------------------------------------------------------------
 FILE    DATE          LOCATION          AIRCRAFT DATA       INJURIES       FLIGHT                        PILOT DATA
                                                               F  S M/N     PURPOSE
----------------------------------------------------------------------------------------------------------------------------
3-3671  65/12/23   CUMBLND CITY TENN   NAVION A            CR-  0  0  1  NONCOMMERCIAL             PRIVATE, AGE 33, 96 TOTAL
        TIME - 0904                    N4896K              PX-  0  0  2  PLEASURE/PERSONAL TRANSP  HOURS, 40 IN TYPE, NOT
                                       DAMAGE-SUBSTANTIAL  OT-  0  0  0                            INSTRUMENT RATED.
        TYPE OF ACCIDENT                                         PHASE OF OPERATION
           ENGINE FAILURE OR MALFUNCTION                            IN FLIGHT: NORMAL CRUISE
           COLLIDED WITH: DITCHES                                   LANDING: ROLL
        PROBABLE CAUSE(S)
           POWERPLANT - ENGINE STRUCTURE: VALVE ASSEMBLIES
           MISCELLANEOUS ACTS,CONDITIONS - CARBON DEPOSITS
        EMERGENCY CIRCUMSTANCES - FORCED LANDING OFF AIRPORT ON LAND
        REMARKS- NUMBER 2 CYLINDER EXHAUST AND INTAKE VALVES STUCK IN OPEN POSITION
```

## Aircraft

- Registration: [N4896K](https://openairdocs.org/deregistered/N4896K-1969-07-23), registration cancelled 1969-07-23, S/N NAV-4-1896 (OpenAirDocs)
- Reported make and model: NAVION A
- Registry model: [Navion NAVION A](https://openairdocs.org/model/navion-navion-a) (registry code 6150104) (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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