# NTSB SEA67A0042: Hiller UH-12C, N5316V, Rosalia, WA, December 12, 1966

- Type: NTSB accident investigation
- Classification: Accident · No injuries · Closed
- Date: December 12, 1966
- Place: Rosalia, WA · ROSALIA, WA
- Location: 47.2363° N, 117.3765° W: Placed by OpenAirDocs: center of Rosalia, WA, within about 6 miles (OpenAirDocs)
- Nearby events: https://openairdocs.org/map.md?lat=47.2363&lon=-117.3765&mi=10
- Phase of flight: [Maneuvering](https://openairdocs.org/ntsb-phases/450) (OpenAirDocs' grouping)
- Highest injury: No injuries
- Injuries: 1 uninjured
- Status: Completed, report June 1, 1967
- Report: Brief approved by the director
- NTSB case key (mKey): 120066
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=SEA67A0042
- Page: https://openairdocs.org/ntsb/SEA67A0042

## NTSB brief

```
----------------------------------------------------------------------------------------------------------------------------
 FILE    DATE          LOCATION          AIRCRAFT DATA       INJURIES       FLIGHT                        PILOT DATA
                                                               F  S M/N     PURPOSE
----------------------------------------------------------------------------------------------------------------------------
2-1053  66/12/12   ROSALIA WASH        HILLER UH-12C       CR-  0  0  1  COMMERCIAL                COMMERCIAL, FL.INSTR.,
        TIME - 0830                    N5316V              PX-  0  0  0  ASSOC CROP CTL ACTIVITY   AGE 31, 2500 TOTAL HOURS,
                                       DAMAGE-SUBSTANTIAL  OT-  0  0  0                            170 IN TYPE, NOT
                                                                                                   INSTRUMENT RATED.
        TYPE OF ACCIDENT                                         PHASE OF OPERATION
           PROPELLER/ROTOR FAILURE: TAIL ROTOR                      IN FLIGHT: SURVEY FIELD/AREA
           HARD LANDING                                             LANDING: LEVEL OFF/TOUCHDOWN
        PROBABLE CAUSE(S)
           ROTORCRAFT - TRANSMISSION ROTOR DRIVE SYSTEM: TAIL ROTOR GEAR BOX
           MISCELLANEOUS ACTS,CONDITIONS - IMPROPERLY SECURED
           PERSONNEL - MAINTENANCE,SERVICING,INSPECTION: INADEQUATE MAINTENANCE AND INSPECTION
        EMERGENCY CIRCUMSTANCES - FORCED LANDING OFF AIRPORT ON LAND
                                  DIRECTIONAL CONTROL PROBLEM
        REMARKS- TAIL ROTOR GEAR BOX PINION SHAFT LOCKNUT LOOSE.
```

## Aircraft

- Registration: [N5316V](https://openairdocs.org/deregistered/N5316V-2020-02-03), registration cancelled 2020-02-03, S/N 762, built 1956 (OpenAirDocs)
- Reported make and model: HILLER UH-12C
- Registry model: [Hiller UH-12C](https://openairdocs.org/model/hiller-uh-12c) (registry code 4360116) (OpenAirDocs)
- Registry engine: [Franklin 6V4 series](https://openairdocs.org/engine/franklin-6v4-series) (registry code 27033, reciprocating) (OpenAirDocs)
- Category: Helicopter
- Engines: reciprocating
- Damage: Substantial damage

## Other investigations on N5316V (2)

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 DEN83LA007](https://openairdocs.org/ntsb/DEN83LA007), Oct 12, 1982: Hiller UH-12C (N5316V), Blanding, UT, destroyed
- [NTSB DEN76FTE32](https://openairdocs.org/ntsb/DEN76FTE32), Oct 19, 1975: Hiller Acft UH-12C (N5316V), Nucla, CO, 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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