# NTSB SEA76DYG67: Hiller Acft UH-12E, N62409, Clark Fork, ID, September 27, 1976

- Type: NTSB accident investigation
- Classification: Accident · No injuries · Closed
- Date: September 27, 1976
- Place: Clark Fork, ID · CLARK FORK, ID
- Location: 48.1473° N, 116.1722° W: Placed by OpenAirDocs: center of Clark Fork, ID, within about 6 miles (OpenAirDocs)
- Nearby events: https://openairdocs.org/map.md?lat=48.1473&lon=-116.1722&mi=10
- Phase of flight: [Landing](https://openairdocs.org/ntsb-phases/550) (OpenAirDocs' grouping)
- Highest injury: No injuries
- Injuries: 1 uninjured
- Status: Completed, report November 17, 1976
- Report: Brief approved by the director
- NTSB case key (mKey): 155669
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=SEA76DYG67
- Page: https://openairdocs.org/ntsb/SEA76DYG67

## NTSB brief

```
----------------------------------------------------------------------------------------------------------------------------
 FILE    DATE          LOCATION          AIRCRAFT DATA       INJURIES       FLIGHT                        PILOT DATA
                                                               F  S M/N     PURPOSE
----------------------------------------------------------------------------------------------------------------------------
3-3085  76/9/27    CLARK FORK,ID       HILLER ACFT UH-12E  CR-  0  0  1  NONCOMMERCIAL             COMMERCIAL, AGE UNK/NR,
        TIME - 0715                    N62409              PX-  0  0  0  PRACTICE                  3005 TOTAL HOURS, 104 IN
                                       DAMAGE-SUBSTANTIAL  OT-  0  0  0                            TYPE, NOT INSTRUMENT
                                                                                                   RATED.
        DEPARTURE POINT             INTENDED DESTINATION
          CLARK FORK,ID               LOCAL
        TYPE OF ACCIDENT                                         PHASE OF OPERATION
           HARD LANDING                                             LANDING: POWER-OFF AUTOROTATIVE LANDING
        PROBABLE CAUSE(S)
           PILOT IN COMMAND - FAILED TO MAINTAIN ADEQUATE ROTOR R.P.M.
           PILOT IN COMMAND - MISJUDGED SPEED AND ALTITUDE
        FACTOR(S)
           MISCELLANEOUS ACTS,CONDITIONS - SIMULATED CONDITIONS
        REMARKS- PRACTICE AUTOROTATION.
```

## Aircraft

- Registration: [N62409](https://openairdocs.org/aircraft/N62409), registered now, S/N 1455, built 1962 (OpenAirDocs)
- Reported make and model: HILLER ACFT UH-12E
- Registry model: [Hiller OH-23G](https://openairdocs.org/model/hiller-oh-23g) (registry code 4360121) (OpenAirDocs)
- Registry engine: [Allison 250 series](https://openairdocs.org/engine/allison-250-series) (registry code 03014, turbo-prop) (OpenAirDocs)
- Category: Helicopter
- 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 19760927030189A](https://openairdocs.org/incident/19760927030189A), Sep 27, 1976: Hiller OH23G, Clark Fork, ID, Substantial damage. Practice autorotation.

## Other investigations on N62409 (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 LAX81DVD28](https://openairdocs.org/ntsb/LAX81DVD28), May 30, 1981: Hiller Acft UH-12E (N62409), Orleans, CA, 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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