# NTSB SEA68D0100: Grumman TBM, N68683, Grangeville, ID, August 23, 1967

- Type: NTSB accident investigation
- Classification: Accident · No injuries · Closed
- Date: August 23, 1967
- Place: Grangeville, ID · GRANGEVILLE, ID
- Location: 45.9258° N, 116.1219° W: Placed by OpenAirDocs: center of Grangeville, ID, within about 6 miles (OpenAirDocs)
- Nearby events: https://openairdocs.org/map.md?lat=45.9258&lon=-116.1219&mi=10
- Phase of flight: [Initial climb](https://openairdocs.org/ntsb-phases/350) (OpenAirDocs' grouping)
- Highest injury: No injuries
- Injuries: 1 uninjured
- Status: Completed, report December 11, 1967
- Report: Brief approved by the director
- NTSB case key (mKey): 114468
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=SEA68D0100
- Page: https://openairdocs.org/ntsb/SEA68D0100

## NTSB brief

```
----------------------------------------------------------------------------------------------------------------------------
 FILE    DATE          LOCATION          AIRCRAFT DATA       INJURIES       FLIGHT                        PILOT DATA
                                                               F  S M/N     PURPOSE
----------------------------------------------------------------------------------------------------------------------------
2-0728  67/8/23    GRANGEVILLE,ID      GRUMMAN TBM         CR-  0  0  1  COMMERCIAL                COMMERCIAL, FL.INSTR.,
        TIME - 1120                    N68683              PX-  0  0  0  ASSOC FIRE CTL ACTIVITY   AGE 41, 10000 TOTAL
                                       DAMAGE-SUBSTANTIAL  OT-  0  0  0                            HOURS, 700 IN TYPE,
                                                                                                   INSTRUMENT RATED.
        NAME OF AIRPORT - IDAHO COUNTY
        TYPE OF ACCIDENT                                         PHASE OF OPERATION
           ENGINE FAILURE OR MALFUNCTION                            TAKEOFF: INITIAL CLIMB
           WHEELS-UP                                                LANDING: LEVEL OFF/TOUCHDOWN
        PROBABLE CAUSE(S)
           POWERPLANT - MISCELLANEOUS: DETONATION
           PILOT IN COMMAND - FAILED TO ASSURE THE GEAR WAS DOWN AND LOCKED
        FACTOR(S)
           MISCELLANEOUS ACTS,CONDITIONS - JETTISONED LOAD
        PARTIAL POWER LOSS - PARTIAL LOSS OF POWER - 1 ENGINE
        EMERGENCY CIRCUMSTANCES - PRECAUTIONARY LANDING ON AIRPORT
                                  SUSPECTED MECHANICAL DISCREPANCY
        REMARKS- CAUSE OF DETONATION UNDETERMINED.
```

## Aircraft

- Registration: [N68683](https://openairdocs.org/deregistered/N68683-1972-11-14), registration cancelled 1972-11-14, S/N 6125 (OpenAirDocs)
- Reported make and model: GRUMMAN TBM
- Registry model: [Grumman TBM-3](https://openairdocs.org/model/grumman-tbm-3) (registry code 3950308) (OpenAirDocs)
- Category: Airplane
- Engines: reciprocating
- Damage: Substantial damage
- Airport: Idaho County

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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