# NTSB UNK64X2017: Bell 47G3B, N8491E, Muldoon, ID, May 30, 1964

- Type: NTSB accident investigation
- Classification: Accident · Minor injuries · Closed
- Date: May 30, 1964
- Place: Muldoon, ID · MULDOON, ID
- Phase of flight: [Landing](https://openairdocs.org/ntsb-phases/550) (OpenAirDocs' grouping)
- Highest injury: Minor injuries
- Injuries: 1 minor
- Status: Completed, report August 25, 1964
- Report: Brief approved by the director
- NTSB case key (mKey): 183573
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=UNK64X2017
- Page: https://openairdocs.org/ntsb/UNK64X2017

## NTSB brief

```
----------------------------------------------------------------------------------------------------------------------------
 FILE    DATE          LOCATION          AIRCRAFT DATA       INJURIES       FLIGHT                        PILOT DATA
                                                               F  S M/N     PURPOSE
----------------------------------------------------------------------------------------------------------------------------
2-0336  64/5/30    MULDOON ID          BELL 47G3B          CR-  0  0  1  COMMERCIAL                COMMERCIAL, AGE 42, 4170
        TIME - 0628                    N8491E              PX-  0  0  0  AERIAL APPLICATION        TOTAL HOURS, 2000 IN
                                       DAMAGE-SUBSTANTIAL  OT-  0  0  0                            TYPE, NOT INSTRUMENT
                                                                                                   RATED.
        TYPE OF ACCIDENT                                         PHASE OF OPERATION
           HARD LANDING                                             LANDING: POWER-ON LANDING
           COLLIDED WITH: FENCE,FENCEPOSTS                          LANDING: POWER-ON LANDING
        PROBABLE CAUSE(S)
           INSTRUMENTS/EQUIPMENT AND ACCESSORIES - MISCELLANEOUS EQUIPMENT: SPRAY,DUSTING EQUIPMENT
           MISCELLANEOUS - FOREIGN MATERIAL AFFECTING NORMAL OPERATIONS
        EMERGENCY CIRCUMSTANCES - FORCED LANDING OFF AIRPORT ON LAND
                                  LATERAL CONTROL PROBLEM
         SPECIAL DATA
          TOTAL HOURS IN CROP CONTROL - UNKNOWN/NOT REPORTED       KIND OF OPERATION - DEFOLIATION (LIQUID)
          KIND OF CROP - PASTURE                                   TYPE OF CHEMICAL USED - LIQUID CHEMICAL-NONTOXIC
          TANK/HOPPER-LOCATION - SIDES                             ELEVATION-AREA BEING TREATED-FEET -  6900
        REMARKS- UNEVEN SPRAY FLOW CAUSED LATERAL UNCONTROLABILITY MATERIAL BLOCKING FLOW UNK
```

## Aircraft

- Registration: [N8491E](https://openairdocs.org/deregistered/N8491E-2018-01-26), registration cancelled 2018-01-26, S/N 2712, built 1961 (OpenAirDocs)
- Reported make and model: BELL 47G3B
- Registry model: [Bell 47G-3B](https://openairdocs.org/model/bell-47g-3b) (registry code 1181026) (OpenAirDocs)
- Registry engine: [Lycoming TVO-435-GIA](https://openairdocs.org/engine/lycoming-tvo-435-gia) (registry code 41526, turbo-prop) (OpenAirDocs)
- Category: Helicopter
- Engines: reciprocating
- Damage: Substantial damage

## Other investigations on N8491E (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 SEA97LA112](https://openairdocs.org/ntsb/SEA97LA112), May 15, 1997: Bell 47G-3B (N8491E), Snohomish, WA, substantial damage. Probable cause: the pilot's encounter with of a loss of tail rotor effectiveness (LTE) situation, and his subsequent inadequate remedial action. Related factors included: wind conditions that were conducive to an…
- [NTSB SEA69A0012](https://openairdocs.org/ntsb/SEA69A0012), Aug 13, 1968: Bell 47G-3B (N8491E), Twin Falls, ID, 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.

---
OpenAirDocs.org is an independent research project of [Contrail Labs](https://contraillabs.com/). It is not affiliated with the FAA or the NTSB. Source documents are U.S. government works in the public domain.