# NTSB ANC70A0003: Hiller Acft UH12E, N5362V, Bettles, AK, July 9, 1969

- Type: NTSB accident investigation
- Classification: Accident · No injuries · Closed
- Date: July 9, 1969
- Place: Bettles, AK · BETTLES, AK
- Location: 66.9073° N, 151.5381° W: Placed by OpenAirDocs: center of Bettles, AK, within about 6 miles (OpenAirDocs)
- Nearby events: https://openairdocs.org/map.md?lat=66.9073&lon=-151.5381&mi=10
- Phase of flight: [Enroute](https://openairdocs.org/ntsb-phases/400) (OpenAirDocs' grouping)
- Highest injury: No injuries
- Injuries: 3 uninjured
- Status: Completed, report April 6, 1970
- Report: Brief approved by the director
- NTSB case key (mKey): 162670
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=ANC70A0003
- Page: https://openairdocs.org/ntsb/ANC70A0003

## NTSB brief

```
----------------------------------------------------------------------------------------------------------------------------
 FILE    DATE          LOCATION          AIRCRAFT DATA       INJURIES       FLIGHT                        PILOT DATA
                                                               F  S M/N     PURPOSE
----------------------------------------------------------------------------------------------------------------------------
3-3527   69/7/9  NR.BETTLES,ALAS       HILLER ACFT UH12E   CR-  0  0  1  COMMERCIAL                COMMERCIAL, AGE 36, 4212
        TIME - 0845                    N5362V              PX-  0  0  2  AIR TAXI-PASSG            TOTAL HOURS, 470 IN TYPE,
                                       DAMAGE-SUBSTANTIAL  OT-  0  0  0                            NOT INSTRUMENT RATED.
        DEPARTURE POINT             INTENDED DESTINATION
          ERNIE LAKE,ALAS             SIXTY MILE CK,ALAS
        TYPE OF ACCIDENT                                         PHASE OF OPERATION
           ENGINE FAILURE OR MALFUNCTION                            IN FLIGHT: NORMAL CRUISE
           HARD LANDING                                             LANDING: POWER-OFF AUTOROTATIVE LANDING
        PROBABLE CAUSE(S)
           POWERPLANT - ENGINE STRUCTURE: MASTER AND CONNECTING RODS
           MISCELLANEOUS ACTS,CONDITIONS - FATIGUE FRACTURE
           PILOT IN COMMAND - FAILED TO MAINTAIN ADEQUATE ROTOR R.P.M.
        COMPLETE POWER LOSS - COMPLETE ENGINE FAILURE/FLAMEOUT-1 ENGINE
        EMERGENCY CIRCUMSTANCES - FORCED LANDING OFF AIRPORT ON LAND
        REMARKS- NR 5 CYL CON ROD CAP AND BOLTS FAILED.
```

## Aircraft

- Registration: [N5362V](https://openairdocs.org/aircraft/N5362V), registered now, S/N 2050 (OpenAirDocs)
- Reported make and model: HILLER ACFT UH12E
- Registry model: [Hiller UH-12E](https://openairdocs.org/model/hiller-uh-12e) (registry code 4360122) (OpenAirDocs)
- Registry engine: [Lycoming VO-540 series](https://openairdocs.org/engine/lycoming-vo-540-series) (registry code 41534, reciprocating) (OpenAirDocs)
- Category: Helicopter
- Engines: reciprocating
- Damage: 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.

---
OpenAirDocs.org is an independent research project of [Contrail Labs](https://contraillabs.com/). It is not affiliated with the FAA or the NTSB. Source documents are U.S. government works in the public domain.