# NTSB SEA78DYP52: Hiller Acft UH-12E, N48121, Moses Lake, WA, September 9, 1978

- Type: NTSB accident investigation
- Classification: Accident · No injuries · Closed
- Date: September 9, 1978
- Place: Moses Lake, WA · MOSES LAKE, WA
- Location: 47.1279° N, 119.2764° W: Placed by OpenAirDocs: center of Moses Lake, WA, within about 6 miles (OpenAirDocs)
- Nearby events: https://openairdocs.org/map.md?lat=47.1279&lon=-119.2764&mi=10
- Phase of flight: [Maneuvering](https://openairdocs.org/ntsb-phases/450) (OpenAirDocs' grouping)
- Highest injury: No injuries
- Injuries: 1 uninjured
- Status: Completed, report November 13, 1978
- Report: Brief approved by the director
- NTSB case key (mKey): 139762
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=SEA78DYP52
- Page: https://openairdocs.org/ntsb/SEA78DYP52

## NTSB brief

```
----------------------------------------------------------------------------------------------------------------------------
 FILE    DATE          LOCATION          AIRCRAFT DATA       INJURIES       FLIGHT                        PILOT DATA
                                                               F  S M/N     PURPOSE
----------------------------------------------------------------------------------------------------------------------------
3-2913   78/9/9    MOSES LAKE,WA       HILLER ACFT UH-12E  CR-  0  0  1  COMMERCIAL                COMMERCIAL, AGE 32, 11120
        TIME - 0900                    N48121              PX-  0  0  0  AERIAL APPLICATION        TOTAL HOURS, 1100 IN
                                       DAMAGE-SUBSTANTIAL  OT-  0  0  0                            TYPE, NOT INSTRUMENT
                                                                                                   RATED.
        DEPARTURE POINT             INTENDED DESTINATION
          MOSES LAKE,WA               LOCAL
        TYPE OF ACCIDENT                                         PHASE OF OPERATION
           ENGINE FAILURE OR MALFUNCTION                            IN FLIGHT: PROCEDURE TURNAROUND
           ROLL OVER                                                LANDING: POWER-ON LANDING
        PROBABLE CAUSE(S)
           POWERPLANT - IGNITION SYSTEM: SPARK PLUG
           MISCELLANEOUS ACTS,CONDITIONS - ERRATIC
           MISCELLANEOUS ACTS,CONDITIONS - CARBON DEPOSITS
           PILOT IN COMMAND - INADEQUATE PREFLIGHT PREPARATION AND/OR PLANNING
        FACTOR(S)
           TERRAIN - ROUGH/UNEVEN
        PARTIAL POWER LOSS - PARTIAL LOSS OF POWER - 1 ENGINE
        EMERGENCY CIRCUMSTANCES - FORCED LANDING OFF AIRPORT ON LAND
         SPECIAL DATA
          TOTAL HOURS IN CROP CONTROL - 9999                       KIND OF OPERATION - SPRAYING CROPS
          KIND OF CROP - OTHER                                     TYPE OF CHEMICAL USED - LIQUID CHEMICAL-NONTOXIC
          GLOVES - NOT USED                                        GOGGLES - NOT USED
          CRASH HELMET - AVAILABLE USED                            COCKPIT CRASHPAD - NOT INSTALLED
          CRASH BAR - NOT INSTALLED                                TANK/HOPPER-LOCATION - SIDES
          TERRAIN-TYPE -LEVEL,FLAT                                 ELEVATION-AREA BEING TREATED-FEET -  1100
          SWATH RUN-HOW FLOWN - UPWIND                             PROCEDURE TURNAROUND - SECOND 1/3 TURN
        REMARKS- SPARK PLUGS LEAD FOULED. 200 MAG DROP ON RUN UP.
```

## Aircraft

- Registration: [N48121](https://openairdocs.org/deregistered/N48121-2000-05-09), registration cancelled 2000-05-09, S/N 1542 (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)
- 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 19780909030819A](https://openairdocs.org/incident/19780909030819A), Sep 9, 1978: Hiller UH12C, Moses Lake, WA, Substantial damage. Spark plugs lead fouled. 200 mag drop on run up.

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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