# NTSB LAX82FVD07: Cessna T210F, N6171R, Penngrove, CA, December 10, 1981

- Type: NTSB accident investigation
- Classification: Accident · No injuries · Closed
- Date: December 10, 1981
- Place: Penngrove, CA · PENNGROVE, CA
- Location: 38.3006° N, 122.6706° W: Placed by OpenAirDocs: center of Penngrove, CA, within about 6 miles (OpenAirDocs)
- Nearby events: https://openairdocs.org/map.md?lat=38.3006&lon=-122.6706&mi=10
- Phase of flight: [Enroute](https://openairdocs.org/ntsb-phases/400) (OpenAirDocs' grouping)
- Highest injury: No injuries
- Injuries: 2 uninjured
- Status: Completed, report January 18, 1982
- Report: Brief approved by the director
- NTSB case key (mKey): 123522
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=LAX82FVD07
- Page: https://openairdocs.org/ntsb/LAX82FVD07

## NTSB brief

```
----------------------------------------------------------------------------------------------------------------------------
 FILE    DATE          LOCATION          AIRCRAFT DATA       INJURIES       FLIGHT                        PILOT DATA
                                                               F  S M/N     PURPOSE
----------------------------------------------------------------------------------------------------------------------------
3-3009  81/12/10   PENNGROVE,CA        CESSNA T210F        CR-  0  0  1  NONCOMMERCIAL             COMMERCIAL, AGE 20, 862
        TIME - 1829                    N6171R              PX-  0  0  1  PLEASURE/PERSONAL TRANSP  TOTAL HOURS, 59 IN TYPE,
                                       DAMAGE-DESTROYED    OT-  0  0  0                            INSTRUMENT RATED.
        DEPARTURE POINT             INTENDED DESTINATION
          SAN JOSE,CA                 SANTA ROSA,CA
        TYPE OF ACCIDENT                                         PHASE OF OPERATION
           PROPELLER/ROTOR FAILURE: PROPELLER                       IN FLIGHT: NORMAL CRUISE
           NOSE OVER/DOWN                                           LANDING: ROLL
        PROBABLE CAUSE(S)
           POWERPLANT - PROPELLER AND ACCESSORIES: OTHER
           MISCELLANEOUS ACTS,CONDITIONS - MATERIAL FAILURE
        FACTOR(S)
           MISCELLANEOUS ACTS,CONDITIONS - VIBRATION,EXCESSIVE
           TERRAIN - WET,SOFT GROUND
        EMERGENCY CIRCUMSTANCES - FORCED LANDING OFF AIRPORT ON LAND
                                  SUSPECTED MECHANICAL DISCREPANCY
                                  PROP/ENGINE VIBRATION
        REMARKS- LOUD KNOCKING SOUND FLWD BY SVR VIB DRG FLT.FOUND 1 PROP BLADE FEATHERED & FREE TO TURN IN HUB.
```

## Aircraft

- Registration: [N6171R](https://openairdocs.org/deregistered/N6171R-1983-11-05), registration cancelled 1983-11-05, S/N T210-0071 (OpenAirDocs)
- Reported make and model: CESSNA T210F
- Registry model: [Cessna T210F](https://openairdocs.org/model/cessna-t210f) (registry code 2073422) (OpenAirDocs)
- Category: Airplane
- Engines: reciprocating
- Damage: Destroyed

## 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 19811210082369A](https://openairdocs.org/incident/19811210082369A), Dec 10, 1981: Cessna T210F, Pennegrove, CA, Substantial damage. Loud knocking sound. Severe vibration at night en route. Shutdown engine. Nosed over landing. One prop blade loose

## Other investigations on N6171R (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 NYC68F0397](https://openairdocs.org/ntsb/NYC68F0397), Mar 13, 1968: Cessna 210 (N6171R), Wilkes-Barre, PA, 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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