# NTSB SEA81DYE08: Hiller Acft UH-12E, N542HA, Forks, WA, November 19, 1980

- Type: NTSB accident investigation
- Classification: Accident · No injuries · Closed
- Date: November 19, 1980
- Place: Forks, WA · FORKS, WA
- Location: 47.9528° N, 124.3902° W: Placed by OpenAirDocs: center of Forks, WA, within about 6 miles (OpenAirDocs)
- Nearby events: https://openairdocs.org/map.md?lat=47.9528&lon=-124.3902&mi=10
- Phase of flight: [Enroute](https://openairdocs.org/ntsb-phases/400) (OpenAirDocs' grouping)
- Highest injury: No injuries
- Injuries: 1 uninjured
- Status: Completed, report May 29, 1981
- Report: Brief approved by the director
- NTSB case key (mKey): 127576
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=SEA81DYE08
- Page: https://openairdocs.org/ntsb/SEA81DYE08

## NTSB brief

```
----------------------------------------------------------------------------------------------------------------------------
 FILE    DATE          LOCATION          AIRCRAFT DATA       INJURIES       FLIGHT                        PILOT DATA
                                                               F  S M/N     PURPOSE
----------------------------------------------------------------------------------------------------------------------------
3-3717  80/11/19 NR.FORKS,WA           HILLER ACFT UH-12E  CR-  0  0  1  COMMERCIAL                COMMERCIAL, AGE 36, 5284
        TIME - 1400                    N542HA              PX-  0  0  0  CTR CARGO-D               TOTAL HOURS, 2001 IN
                                       DAMAGE-SUBSTANTIAL  OT-  0  0  0                            TYPE, NOT INSTRUMENT
                                                                                                   RATED.
        DEPARTURE POINT             INTENDED DESTINATION
         FORKS,WA                     LOCAL
        TYPE OF ACCIDENT                                         PHASE OF OPERATION
           ENGINE FAILURE OR MALFUNCTION                            IN FLIGHT: POWER-ON DESCENT
           ROLL OVER                                                LANDING: POWER-ON LANDING
        PROBABLE CAUSE(S)
           POWERPLANT - FUEL SYSTEM: FUEL CONTROL
           MISCELLANEOUS ACTS,CONDITIONS - IMPROPERLY SECURED
           MISCELLANEOUS ACTS,CONDITIONS - LOOSE,PART/FITTING
           PERSONNEL - MAINTENANCE,SERVICING,INSPECTION: INADEQUATE MAINTENANCE AND INSPECTION
        FACTOR(S)
           TERRAIN - ROUGH/UNEVEN
        PARTIAL POWER LOSS - PARTIAL LOSS OF POWER - 1 ENGINE
        EMERGENCY CIRCUMSTANCES - FORCED LANDING OFF AIRPORT ON LAND
        REMARKS- PG AIR LINE NUT AT FUEL CTL END LOOSE.
```

## Aircraft

- Registration: [N542HA](https://openairdocs.org/deregistered/N542HA-2013-04-18), registration cancelled 2013-04-18, S/N 5042, built 1978 (OpenAirDocs)
- Reported make and model: HILLER ACFT UH-12E
- Registry model: [Hiller UH-12E](https://openairdocs.org/model/hiller-uh-12e) (registry code 4360122) (OpenAirDocs)
- Registry engine: [Allison 250 series](https://openairdocs.org/engine/allison-250-series) (registry code 03014, turbo-prop) (OpenAirDocs)
- Category: Helicopter
- Engines: turbo shaft
- 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 19801119074419A](https://openairdocs.org/incident/19801119074419A), Nov 19, 1980: Hiller UH12E, Forks, WA, Substantial damage. Engine surged, lost power. Helicopter settled to ground. Rolled over. Found loose pg airline nut.

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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