# NTSB SEA75DYC42: Hiller Acft UH-12D, N17714, Manzanita, OR, June 14, 1975

- Type: NTSB accident investigation
- Classification: Accident · No injuries · Closed
- Date: June 14, 1975
- Place: Manzanita, OR · MANZANITA, OR
- Location: 45.7166° N, 123.9351° W: Placed by OpenAirDocs: center of Manzanita, OR, within about 6 miles (OpenAirDocs)
- Nearby events: https://openairdocs.org/map.md?lat=45.7166&lon=-123.9351&mi=10
- Phase of flight: [Maneuvering](https://openairdocs.org/ntsb-phases/450) (OpenAirDocs' grouping)
- Highest injury: No injuries
- Injuries: 1 uninjured
- Status: Completed, report October 8, 1975
- Report: Brief approved by the director
- NTSB case key (mKey): 149075
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=SEA75DYC42
- Page: https://openairdocs.org/ntsb/SEA75DYC42

## NTSB brief

```
----------------------------------------------------------------------------------------------------------------------------
 FILE    DATE          LOCATION          AIRCRAFT DATA       INJURIES       FLIGHT                        PILOT DATA
                                                               F  S M/N     PURPOSE
----------------------------------------------------------------------------------------------------------------------------
3-2612  75/6/14    MANZANITA,OR        HILLER ACFT UH-12D  CR-  0  0  1  COMMERCIAL                COMMERCIAL, FL.INSTR.,
        TIME - 1000                    N17714              PX-  0  0  0  CTR CARGO-D               AGE 27, 2510 TOTAL HOURS,
                                       DAMAGE-SUBSTANTIAL  OT-  0  0  0                            28 IN TYPE, NOT
                                                                                                   INSTRUMENT RATED.
        DEPARTURE POINT             INTENDED DESTINATION
          MANZANITA,OR                LOCAL
        TYPE OF ACCIDENT                                         PHASE OF OPERATION
           MISCELLANEOUS                                            IN FLIGHT: HOVERING
           COLLIDED WITH: OBJECT                                    LANDING: POWER-OFF AUTOROTATIVE LANDING
        PROBABLE CAUSE(S)
           MISCELLANEOUS - UNDETERMINED
        FACTOR(S)
           TERRAIN - HIDDEN OBSTRUCTIONS
           PILOT IN COMMAND - LACK OF FAMILIARITY WITH AIRCRAFT
           MISCELLANEOUS ACTS,CONDITIONS - VIBRATION,EXCESSIVE
           MISCELLANEOUS ACTS,CONDITIONS - CIRCUIT BREAKER POPPED
        EMERGENCY CIRCUMSTANCES - PRECAUTIONARY LANDING OFF AIRPORT
                                  LATERAL CONTROL PROBLEM
                                  PITCH CONTROL PROBLEM
        REMARKS- EXT LOAD LOGGING OPN.VIOLENT SHAKING IN HOVER,ELECT TRIM CB POPPED.EMERG LDG,KEEL HIT 12INCH STUMP
```

## Aircraft

- Registration: [N17714](https://openairdocs.org/deregistered/N17714-2012-08-13), registration cancelled 2012-08-13, S/N 1010, built 1958 (OpenAirDocs)
- Reported make and model: HILLER ACFT UH-12D
- Registry model: [Hiller UH-12D](https://openairdocs.org/model/hiller-uh-12d) (registry code 4360118) (OpenAirDocs)
- Registry engine: [Lycoming 0-435A/0-435C](https://openairdocs.org/engine/lycoming-0-435a-0-435c) (registry code 41517, reciprocating) (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 19750614019209A](https://openairdocs.org/incident/19750614019209A), Jun 14, 1975: Hiller UH12D, Manzanita, OR, Substantial damage. Ext load logging opn. Violent shaking in hover,elect trim cb popped. Emerg ldg,keel hit 12INCH stump

## Other investigations on N17714 (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 SEA76FYC26](https://openairdocs.org/ntsb/SEA76FYC26), Dec 11, 1975: Hiller Acft UH-12D (N17714), Nehalem, OR, destroyed

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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