# NTSB ANC79FA060: Cessna 207, N6255H, Platinum, AK, June 11, 1979

- Type: NTSB accident investigation
- Classification: Accident · No injuries · Closed
- Date: June 11, 1979
- Place: Platinum, AK · PLATINUM, AK
- Location: 59.0131° N, 161.8164° W: Placed by OpenAirDocs: center of Platinum, AK, within about 6 miles (OpenAirDocs)
- Nearby events: https://openairdocs.org/map.md?lat=59.0131&lon=-161.8164&mi=10
- Phase of flight: [Enroute](https://openairdocs.org/ntsb-phases/400) (OpenAirDocs' grouping)
- Highest injury: No injuries
- Injuries: 1 uninjured
- Status: Completed, report January 25, 1980
- Report: Brief approved by the director
- NTSB case key (mKey): 135486
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=ANC79FA060
- Page: https://openairdocs.org/ntsb/ANC79FA060

## NTSB brief

```
----------------------------------------------------------------------------------------------------------------------------
 FILE    DATE          LOCATION          AIRCRAFT DATA       INJURIES       FLIGHT                        PILOT DATA
                                                               F  S M/N     PURPOSE
----------------------------------------------------------------------------------------------------------------------------
3-2974  79/6/11    PLATINUM,AK         CESSNA 207          CR-  0  0  1  COMMERCIAL                COMMERCIAL, FL.INSTR.,
        TIME - 1855                    N6255H              PX-  0  0  0  COMMUTER AIR CARRIER      AGE 28, 1175 TOTAL HOURS,
                                       DAMAGE-SUBSTANTIAL  OT-  0  0  0  AIR TAXI-CARGO S-D        205 IN TYPE, INSTRUMENT
                                                                                                   RATED.
        DEPARTURE POINT             INTENDED DESTINATION
          PLATINUM,AK                 QUINHAGAK,AK
        TYPE OF ACCIDENT                                         PHASE OF OPERATION
           ENGINE FAILURE OR MALFUNCTION                            IN FLIGHT: NORMAL CRUISE
           NOSE OVER/DOWN                                           LANDING: LEVEL OFF/TOUCHDOWN
        PROBABLE CAUSE(S)
           POWERPLANT - ENGINE STRUCTURE: MASTER AND CONNECTING RODS
           MISCELLANEOUS ACTS,CONDITIONS - MATERIAL FAILURE
        FACTOR(S)
           TERRAIN - ROUGH/UNEVEN
        COMPLETE POWER LOSS - COMPLETE ENGINE FAILURE/FLAMEOUT-1 ENGINE
        EMERGENCY CIRCUMSTANCES - FORCED LANDING OFF AIRPORT ON LAND
        REMARKS- NO 3 ROD FAILED AT CRANKSHAFT ATCH END.THREADS STRIPPED ON 1 BOLT,OTHER BOLT NOT FND.HOLE IN ENG.
```

## Aircraft

- Registration: [N6255H](https://openairdocs.org/aircraft/N6255H), registered now, S/N 20700452 (OpenAirDocs)
- Reported make and model: CESSNA 207
- Registry model: [Cessna 207A](https://openairdocs.org/model/cessna-207a) (registry code 2073604) (OpenAirDocs)
- Registry engine: [Continental IO-520 series](https://openairdocs.org/engine/continental-io-520-series) (registry code 17032, reciprocating) (OpenAirDocs)
- Category: Airplane
- Engines: reciprocating
- Damage: Substantial damage

## 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 19790611036489A](https://openairdocs.org/incident/19790611036489A), Jun 11, 1979: Cessna 207, Platinum, AK, Substantial damage. #3 Rod failed at crankshaft attach end. Found looseness of torque of crankcase halves.

## Other investigations on N6255H (2)

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 ANC91LA066](https://openairdocs.org/ntsb/ANC91LA066), Jun 6, 1991: Cessna 207A (N6255H), Eek, AK, substantial damage. Probable cause: WAS FUEL CONTAMINATION. CONTRIBUTING FACTORS ARE THE ENGINE VIBRATIONS AND THE ROUGH VEGETATION UPON WHICH THE AIRPLANE LANDED.
- [NTSB ANC90LA012](https://openairdocs.org/ntsb/ANC90LA012), Nov 7, 1989: Cessna 207 (N6255H), Quinhagak, AK, substantial damage. Probable cause: FATIGUE FAILURE OF THE RIGHT RUDDER BAR. A FACTOR RELATED TO THE ACCIDENT WAS: ROUGH/UNEVEN TERRAIN BESIDE THE RUNWAY.

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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