# NTSB ATL81FA021: Cessna T210N, N4846C, Tazewell, TN, December 2, 1980

- Type: NTSB accident investigation
- Classification: Accident · Fatal · Closed
- Date: December 2, 1980
- Place: Tazewell, TN · TAZEWELL, TN
- Location: 36.4625° N, 83.5670° W: Placed by OpenAirDocs: center of Tazewell, TN, within about 6 miles (OpenAirDocs)
- Nearby events: https://openairdocs.org/map.md?lat=36.4625&lon=-83.5670&mi=10
- Phase of flight: [Uncontrolled descent](https://openairdocs.org/ntsb-phases/650) (OpenAirDocs' grouping)
- Highest injury: Fatal
- Injuries: 4 fatal
- Status: Completed, report April 17, 1981
- Report: Brief approved by the director
- NTSB case key (mKey): 128094
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=ATL81FA021
- Page: https://openairdocs.org/ntsb/ATL81FA021

## NTSB brief

```
----------------------------------------------------------------------------------------------------------------------------
 FILE    DATE          LOCATION          AIRCRAFT DATA       INJURIES       FLIGHT                        PILOT DATA
                                                               F  S M/N     PURPOSE
----------------------------------------------------------------------------------------------------------------------------
3-3630   80/12/2 NR.TAZEWELL,TN        CESSNA T210N        CR-  1  0  0  NONCOMMERCIAL             PRIVATE, AGE 39, 1283
        TIME - 1008                    N4846C              PX-  3  0  0  BUSINESS                  TOTAL HOURS, 194 IN TYPE,
                                       DAMAGE-DESTROYED    OT-  0  0  0                            INSTRUMENT RATED.
        DEPARTURE POINT             INTENDED DESTINATION
          PEACHTREE CITY,GA           MANSFIELD,OH
        TYPE OF ACCIDENT                                         PHASE OF OPERATION
           AIRFRAME FAILURE: IN FLIGHT                              IN FLIGHT: UNCONTROLLED DESCENT
        PROBABLE CAUSE(S)
           PILOT IN COMMAND - SPATIAL DISORIENTATION
        FACTOR(S)
           POWERPLANT - ENGINE ACCESSORIES: VACUUM PUMPS
           MISCELLANEOUS ACTS,CONDITIONS - MATERIAL FAILURE
           AIRFRAME - WINGS: SPARS
           MISCELLANEOUS ACTS,CONDITIONS - OVERLOAD FAILURE
           MISCELLANEOUS ACTS,CONDITIONS - SEPARATION IN FLIGHT
        REMARKS- VACUUM PUMP VANE FAILED,DRIVE SHAFT SHEARED.
```

## Aircraft

- Registration: [N4846C](https://openairdocs.org/deregistered/N4846C-2014-10-14), registration cancelled 2014-10-14, S/N 21063643, built 1979 (OpenAirDocs)
- Reported make and model: CESSNA T210N
- Registry model: [Cessna T210N](https://openairdocs.org/model/cessna-t210n) (registry code 2073456) (OpenAirDocs)
- Registry engine: [Continental TSIO-520 series](https://openairdocs.org/engine/continental-tsio-520-series) (registry code 17040, reciprocating) (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 19801202090639A](https://openairdocs.org/incident/19801202090639A), Dec 2, 1980: Cessna T210N, Tazewell, TN, Destroyed, 3 fatal. Vacuum pump failed during IFR descent thru cloud layer. Lost control, exceeded design load factor of aircraft.

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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