# NTSB FTW70FPA07: Bell 47D1, N74121, Howe, TX, March 4, 1970

- Type: NTSB accident investigation
- Classification: Accident · No injuries · Closed
- Date: March 4, 1970
- Place: Howe, TX · HOWE, TX
- Location: 33.5075° N, 96.6155° W: Placed by OpenAirDocs: center of Howe, TX, within about 6 miles (OpenAirDocs)
- Nearby events: https://openairdocs.org/map.md?lat=33.5075&lon=-96.6155&mi=10
- Phase of flight: [Enroute](https://openairdocs.org/ntsb-phases/400) (OpenAirDocs' grouping)
- Highest injury: No injuries
- Injuries: 1 uninjured
- Status: Completed, report July 27, 1970
- Report: Brief approved by the director
- NTSB case key (mKey): 140838
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=FTW70FPA07
- Page: https://openairdocs.org/ntsb/FTW70FPA07

## NTSB brief

```
----------------------------------------------------------------------------------------------------------------------------
 FILE    DATE          LOCATION          AIRCRAFT DATA       INJURIES       FLIGHT                        PILOT DATA
                                                               F  S M/N     PURPOSE
----------------------------------------------------------------------------------------------------------------------------
3-0537   70/3/4    HOWE,TEX            BELL 47D1           CR-  0  0  1  COMMERCIAL                COMMERCIAL, AGE 33, 4600
        TIME - 1630                    N74121              PX-  0  0  0  ASSOC CROP CTL ACTIVITY   TOTAL HOURS, 2500 IN
                                       DAMAGE-SUBSTANTIAL  OT-  0  0  0                            TYPE, NOT INSTRUMENT
                                                                                                   RATED.
        NAME OF AIRPORT - SHERMAN
        DEPARTURE POINT             INTENDED DESTINATION
          HOWE,TEX                    HOWE,TEX
        TYPE OF ACCIDENT                                         PHASE OF OPERATION
           ENGINE FAILURE OR MALFUNCTION                            IN FLIGHT: NORMAL CRUISE
           HARD LANDING                                             LANDING: POWER-OFF AUTOROTATIVE LANDING
        PROBABLE CAUSE(S)
           POWERPLANT - ENGINE STRUCTURE: CYLINDER ASSEMBLY
           MISCELLANEOUS ACTS,CONDITIONS - MATERIAL FAILURE
           PILOT IN COMMAND - IMPROPER OPERATION OF FLIGHT CONTROLS
        PARTIAL POWER LOSS - PARTIAL LOSS OF POWER - 1 ENGINE
        EMERGENCY CIRCUMSTANCES - FORCED LANDING OFF AIRPORT ON LAND
         SPECIAL DATA
          TOTAL HOURS IN CROP CONTROL - UNKNOWN/NOT REPORTED       KIND OF OPERATION - FERTILIZING (LIQUID)
          KIND OF CROP - PASTURE                                   TYPE OF CHEMICAL USED - LIQUID CHEMICAL-NONTOXIC
          GLOVES - USED                                            GOGGLES - NOT USED
          CRASH HELMET - AVAILABLE USED                            COCKPIT CRASHPAD - NOT INSTALLED
          CRASH BAR - NOT INSTALLED                                TANK/HOPPER-LOCATION - SIDES
          TERRAIN-TYPE -ROLLING                                    ELEVATION-AREA BEING TREATED-FEET -  800
        REMARKS- FLANGE OF NR 5 CYL FAILED.
```

## Aircraft

- Registration: [N74121](https://openairdocs.org/deregistered/N74121-2013-05-08), registration cancelled 2013-05-08, S/N WH-5006, built 1963 (OpenAirDocs)
- Reported make and model: BELL 47D1
- Registry model: [Bell 47D1](https://openairdocs.org/model/bell-47d1) (registry code 1180802) (OpenAirDocs)
- Registry engine: [Franklin 6V4 series](https://openairdocs.org/engine/franklin-6v4-series) (registry code 27033, reciprocating) (OpenAirDocs)
- Category: Helicopter
- Engines: reciprocating
- Damage: Substantial damage
- Airport: Sherman

## Other investigations on N74121 (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 CHI75DEV36](https://openairdocs.org/ntsb/CHI75DEV36), Jun 6, 1975: Bell 47D-1 (N74121), Carmi, IL, destroyed
- [NTSB FTW73FPD37](https://openairdocs.org/ntsb/FTW73FPD37), May 21, 1973: Bell 47D1 (N74121), Decatur, TX, substantial damage
- [NTSB FTW72DPD40](https://openairdocs.org/ntsb/FTW72DPD40), May 8, 1972: Bell 47D1 (N74121), Glen Rose, TX, substantial damage
- [NTSB DEN66A0089](https://openairdocs.org/ntsb/DEN66A0089), Jun 19, 1966: Bell 47D1 (N74121), Hyattville, WY, substantial damage
- [NTSB DEN66A0080](https://openairdocs.org/ntsb/DEN66A0080), May 6, 1966: Bell 47D1 (N74121), Albuquerque, NM, 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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