# NTSB SEA78DYA10: Bell 47G3B1, N88929, Ukon, ID, June 1, 1978

- Type: NTSB accident investigation
- Classification: Accident · No injuries · Closed
- Date: June 1, 1978
- Place: Ukon, ID · UKON, ID
- Phase of flight: [Taxi](https://openairdocs.org/ntsb-phases/250) (OpenAirDocs' grouping)
- Highest injury: No injuries
- Injuries: 1 uninjured
- Status: Completed, report June 23, 1978
- Report: Brief approved by the director
- NTSB case key (mKey): 141667
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=SEA78DYA10
- Page: https://openairdocs.org/ntsb/SEA78DYA10

## NTSB brief

```
----------------------------------------------------------------------------------------------------------------------------
 FILE    DATE          LOCATION          AIRCRAFT DATA       INJURIES       FLIGHT                        PILOT DATA
                                                               F  S M/N     PURPOSE
----------------------------------------------------------------------------------------------------------------------------
3-1030   78/6/1    UKON,ID             BELL 47G3B1         CR-  0  0  1  INSTRUCTIONAL             STUDENT, AGE 30, 125
        TIME - 1120                    N88929              PX-  0  0  0  TRAINING                  TOTAL HOURS, 60 IN TYPE,
                                       DAMAGE-SUBSTANTIAL  OT-  0  0  0                            NOT INSTRUMENT RATED.
        DEPARTURE POINT             INTENDED DESTINATION
          IDAHO FALLS,ID              LOCAL
        TYPE OF ACCIDENT                                         PHASE OF OPERATION
           COLLISION WITH GROUND/WATER: CONTROLLED                  TAXI: GROUND TAXI TO TAKEOFF
        PROBABLE CAUSE(S)
           PILOT IN COMMAND - FAILED TO MAINTAIN ADEQUATE ROTOR R.P.M.
           PILOT IN COMMAND - IMPROPER OPERATION OF FLIGHT CONTROLS
        FACTOR(S)
           WEATHER - UNFAVORABLE WIND CONDITIONS
        WEATHER BRIEFING - UNKNOWN/NOT REPORTED
        WEATHER FORECAST - UNKNOWN/NOT REPORTED
        SKY CONDITION                                            CEILING AT ACCIDENT SITE
          CLEAR                                                    UNLIMITED
        VISIBILITY AT ACCIDENT SITE                              PRECIPITATION AT ACCIDENT SITE
          5 OR OVER(UNLIMITED)                                     NONE
        OBSTRUCTIONS TO VISION AT ACCIDENT SITE                  TEMPERATURE-F
          NONE                                                      55
        WIND DIRECTION-DEGREES                                   WIND VELOCITY-KNOTS
           30                                                       9
        TYPE OF WEATHER CONDITIONS                               TYPE OF FLIGHT PLAN
          VFR                                                      NONE
```

## Aircraft

- Registration: [N88929](https://openairdocs.org/deregistered/N88929-1994-12-23), registration cancelled 1994-12-23, S/N 364 (OpenAirDocs)
- Reported make and model: BELL 47G3B1
- Registry model: [Bell 47D1](https://openairdocs.org/model/bell-47d1) (registry code 1180802) (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 19780601011369A](https://openairdocs.org/incident/19780601011369A), Jun 1, 1978: Bell 47D1, Ukon, ID, Destroyed

## Other investigations on N88929 (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 MIA87LA116](https://openairdocs.org/ntsb/MIA87LA116), Mar 22, 1987: Bell 47-D1 (N88929), Homosassa, FL, 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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