# NTSB FTW75DPG68: Bell 47G-2, N38926, Denmark, AR, May 26, 1975

- Type: NTSB accident investigation
- Classification: Accident · Minor injuries · Closed
- Date: May 26, 1975
- Place: Denmark, AR · DENMARK, AR
- Location: 35.4842° N, 91.5832° W: Placed by OpenAirDocs: center of Denmark, AR, within about 6 miles (OpenAirDocs)
- Nearby events: https://openairdocs.org/map.md?lat=35.4842&lon=-91.5832&mi=10
- Phase of flight: [Maneuvering](https://openairdocs.org/ntsb-phases/450) (OpenAirDocs' grouping)
- Highest injury: Minor injuries
- Injuries: 1 minor
- Status: Completed, report July 9, 1975
- Report: Brief approved by the director
- NTSB case key (mKey): 148845
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=FTW75DPG68
- Page: https://openairdocs.org/ntsb/FTW75DPG68

## NTSB brief

```
----------------------------------------------------------------------------------------------------------------------------
 FILE    DATE          LOCATION          AIRCRAFT DATA       INJURIES       FLIGHT                        PILOT DATA
                                                               F  S M/N     PURPOSE
----------------------------------------------------------------------------------------------------------------------------
3-1381  75/5/26    DENMARK,AR          BELL 47G-2          CR-  0  0  1  COMMERCIAL                COMMERCIAL, AGE 33, 12000
        TIME - 0845                    N38926              PX-  0  0  0  AERIAL APPLICATION        TOTAL HOURS, 1020 IN
                                       DAMAGE-SUBSTANTIAL  OT-  0  0  0                            TYPE, NOT INSTRUMENT
                                                                                                   RATED.
        DEPARTURE POINT             INTENDED DESTINATION
          DENMARK,AR                  LOCAL
        TYPE OF ACCIDENT                                         PHASE OF OPERATION
           PROPELLER/ROTOR FAILURE: TAIL ROTOR                      IN FLIGHT: PROCEDURE TURNAROUND
        PROBABLE CAUSE(S)
           ROTORCRAFT - ROTOR ASSEMBLIES: OTHER
           MISCELLANEOUS ACTS,CONDITIONS - FATIGUE FRACTURE
        FACTOR(S)
           MISCELLANEOUS ACTS,CONDITIONS - SEPARATION IN FLIGHT
        EMERGENCY CIRCUMSTANCES - FORCED LANDING OFF AIRPORT ON LAND
         SPECIAL DATA
          TOTAL HOURS IN CROP CONTROL - 1020                       KIND OF OPERATION - SPRAYING FORESTS
          KIND OF CROP - FOREST-TREES                              TYPE OF CHEMICAL USED - LIQUID CHEMICAL-TOXIC
          PILOT' S SEAT BELT -FASTENED-PROPERLY                    GLOVES - NOT USED
          GOGGLES - NOT USED                                       CRASH HELMET - AVAILABLE USED
          COCKPIT CRASHPAD - NOT INSTALLED                         CRASH BAR - NOT INSTALLED
          TANK/HOPPER-LOCATION - SIDES                             TERRAIN-TYPE -HILLY
          ELEVATION-AREA BEING TREATED-FEET -  600                               DENSE WITH TREES
          SWATH RUN-HOW FLOWN - UNKNOWN/NOT REPORTED               PROCEDURE TURNAROUND - FIRST 1/3 TURN
        REMARKS- BELL YOKE TAIL ROTOR HUB P/N 47-641-057-009 FAILED.
```

## Aircraft

- Registration: [N38926](https://openairdocs.org/deregistered/N38926-2012-11-14), registration cancelled 2012-11-14, S/N N.A.H.1957-1, built 1973 (OpenAirDocs)
- Reported make and model: BELL 47G-2
- Registry model: [Bell 47G-2](https://openairdocs.org/model/bell-47g-2) (registry code 1181008) (OpenAirDocs)
- Registry engine: [Lycoming VO-435 series](https://openairdocs.org/engine/lycoming-vo-435-series) (registry code 41525, reciprocating) (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 19750526014279A](https://openairdocs.org/incident/19750526014279A), May 26, 1975: Bell 47G2, Denmark, AR, Substantial damage. Bell yoke tail rotor hub p/n 47-641-057-009 failed.

## Other investigations on N38926 (5)

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 SEA05LA138](https://openairdocs.org/ntsb/SEA05LA138), Jul 5, 2005: Bell 47G-2A (N38926), Oroville, WA, substantial damage. Probable cause: The failure of the throttle cable housing, which permitted the engine's RPM to decay to the idle position. Contributing factors were the trees and the lack of suitable terrain for a forced landing.
- [NTSB SEA91LA077](https://openairdocs.org/ntsb/SEA91LA077), Mar 31, 1991: Bell BH-47G2A (N38926), Waitsburg, WA, substantial damage. Probable cause: THE IMPROPER INSTALLATION OF THE MAIN ROTOR MAST NUT AND LOCK WASHER BY MAINTENANCE PERSONNEL WHICH RESULTED IN THE SEPARATION OF THE MAIN ROTOR SYSTEM.
- [NTSB FTW77FPG86](https://openairdocs.org/ntsb/FTW77FPG86), Sep 19, 1977: Bell 47G2H1 (N38926), Mountain View, AR, destroyed
- [NTSB FTW76DRG70](https://openairdocs.org/ntsb/FTW76DRG70), Jul 17, 1976: Bell 47G-2 (N38926), Mcallen, TX, substantial damage
- [NTSB MKC73AK059](https://openairdocs.org/ntsb/MKC73AK059), Apr 6, 1973: Bell 47G-2 (N38926), Owatonna, MN, 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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