# NTSB DEN81FA009: Hiller Acft 12E, N57972, Blanding, UT, November 5, 1980

- Type: NTSB accident investigation
- Classification: Accident · No injuries · Closed
- Date: November 5, 1980
- Place: Blanding, UT · BLANDING, UT
- Location: 37.6187° N, 109.5095° W: Placed by OpenAirDocs: center of Blanding, UT, within about 6 miles (OpenAirDocs)
- Nearby events: https://openairdocs.org/map.md?lat=37.6187&lon=-109.5095&mi=10
- Phase of flight: [Emergency descent](https://openairdocs.org/ntsb-phases/600) (OpenAirDocs' grouping)
- Highest injury: No injuries
- Injuries: 2 uninjured
- Status: Completed, report March 1, 1982
- Report: Brief approved by the director
- NTSB case key (mKey): 128448
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=DEN81FA009
- Page: https://openairdocs.org/ntsb/DEN81FA009

## NTSB brief

```
----------------------------------------------------------------------------------------------------------------------------
 FILE    DATE          LOCATION          AIRCRAFT DATA       INJURIES       FLIGHT                        PILOT DATA
                                                               F  S M/N     PURPOSE
----------------------------------------------------------------------------------------------------------------------------
3-3785   80/11/5   BLANDING,UT         HILLER ACFT 12E     CR-  0  0  2  INSTRUCTIONAL             COMMERCIAL, AGE 48, 4072
        TIME - 1620                    N57972              PX-  0  0  0  CHECK                     TOTAL HOURS, 257 IN TYPE,
                                       DAMAGE-SUBSTANTIAL  OT-  0  0  0                            INSTRUMENT RATED.
        NAME OF AIRPORT - BLANDING MUNI
        DEPARTURE POINT             INTENDED DESTINATION
          BLANDING,UT                 LOCAL
        TYPE OF ACCIDENT                                         PHASE OF OPERATION
           ENGINE FAILURE OR MALFUNCTION                            IN FLIGHT: AUTOROTATIVE DESCENT
           HARD LANDING                                             IN FLIGHT: AUTOROTATIVE DESCENT
        PROBABLE CAUSE(S)
           POWERPLANT - FUEL SYSTEM: CARBURETOR
           MISCELLANEOUS ACTS,CONDITIONS - IMPROPER ALIGNMENT/ADJUSTMENT
           MISCELLANEOUS ACTS,CONDITIONS - EXCESSIVE-WEAR/PLAY
           MISCELLANEOUS ACTS,CONDITIONS - FUEL STARVATION
        FACTOR(S)
           MISCELLANEOUS ACTS,CONDITIONS - SIMULATED CONDITIONS
        PARTIAL POWER LOSS - PARTIAL LOSS OF POWER - 1 ENGINE
        EMERGENCY CIRCUMSTANCES - FORCED LANDING OFF AIRPORT ON LAND
        REMARKS- PRACTICE AUTOROTATION.ENG SPUTTERED.ECON VALVES OUT OF ADJ.MIX BUSHING WORN.O-RING SEALS LEAKING.
```

## Aircraft

- Registration: [N57972](https://openairdocs.org/deregistered/N57972-2012-06-21), registration cancelled 2012-06-21, S/N 1345, built 1962 (OpenAirDocs)
- Reported make and model: HILLER ACFT 12E
- Registry model: [Hiller UH-12E](https://openairdocs.org/model/hiller-uh-12e) (registry code 4360122) (OpenAirDocs)
- Registry engine: [Lycoming VO-435 series](https://openairdocs.org/engine/lycoming-vo-435-series) (registry code 41525, reciprocating) (OpenAirDocs)
- Category: Helicopter
- Engines: reciprocating
- Damage: Substantial damage
- Airport: Blanding Muni

## 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 19801105073949A](https://openairdocs.org/incident/19801105073949A), Nov 5, 1980: Hiller UH12D, Blanding, UT, Substantial damage. Engine sputtered at termination of flight test autorotation. Found stuck carb float, worn jets, leaky "o" rings.

## Other investigations on N57972 (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 CHI91LA245](https://openairdocs.org/ntsb/CHI91LA245), Aug 3, 1991: Hiller 1345 (N57972), Michigan City, IN, substantial damage. Probable cause: FUEL EXHAUSTION DUE THE PILOT'S DELAY IN REFUELING. FACTORS RELATED TO THE ACCIDENT WERE PRESSURE INDUCED BY OTHERS (PASSENGER), AND THE ABSENCE OF SUITABLE TERRAIN.

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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