# NTSB NYC72FNA05: Bell 47D, N177B, Carver, MA, August 4, 1971

- Type: NTSB accident investigation
- Classification: Accident · No injuries · Closed
- Date: August 4, 1971
- Place: Carver, MA · CARVER, MA
- Location: 41.8834° N, 70.7625° W: Placed by OpenAirDocs: center of Carver, MA, within about 6 miles (OpenAirDocs)
- Nearby events: https://openairdocs.org/map.md?lat=41.8834&lon=-70.7625&mi=10
- Phase of flight: [Maneuvering](https://openairdocs.org/ntsb-phases/450) (OpenAirDocs' grouping)
- Highest injury: No injuries
- Injuries: 1 uninjured
- Status: Completed, report March 16, 1972
- Report: Brief approved by the director
- NTSB case key (mKey): 162946
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=NYC72FNA05
- Page: https://openairdocs.org/ntsb/NYC72FNA05

## NTSB brief

```
----------------------------------------------------------------------------------------------------------------------------
 FILE    DATE          LOCATION          AIRCRAFT DATA       INJURIES       FLIGHT                        PILOT DATA
                                                               F  S M/N     PURPOSE
----------------------------------------------------------------------------------------------------------------------------
3-2832   71/8/4    CARVER,MASS         BELL 47D            CR-  0  0  1  COMMERCIAL                COMMERCIAL, FL.INSTR.,
        TIME - 1410                    N177B               PX-  0  0  0  AERIAL APPLICATION        AGE 51, 16700 TOTAL
                                       DAMAGE-SUBSTANTIAL  OT-  0  0  0                            HOURS, 4100 IN TYPE, NOT
                                                                                                   INSTRUMENT RATED.
        NAME OF AIRPORT - PLYMOUTH
        DEPARTURE POINT             INTENDED DESTINATION
          CARVER,MASS                 LOCAL
        TYPE OF ACCIDENT                                         PHASE OF OPERATION
           MISCELLANEOUS                                            IN FLIGHT: SWATH RUN
           COLLISION WITH GROUND/WATER: UNCONTROLLED                LANDING: OTHER
        PROBABLE CAUSE(S)
           ROTORCRAFT - FLIGHT CONTROL SYSTEMS: CYCLIC PITCH CONTROL SYSTEM
           MISCELLANEOUS ACTS,CONDITIONS - MATERIAL FAILURE
         SPECIAL DATA
          TOTAL HOURS IN CROP CONTROL - 4100                       KIND OF OPERATION - SPRAYING CROPS
          KIND OF CROP - OTHER                                     TYPE OF CHEMICAL USED - LIQUID CHEMICAL-TOXIC
          PILOT' S SEAT BELT -FASTENED-PROPERLY                    GLOVES - USED
          GOGGLES - NOT USED                                       CRASH HELMET - AVAILABLE USED
          COCKPIT CRASHPAD - NOT INSTALLED                         CRASH BAR - NOT INSTALLED
          TANK/HOPPER-LOCATION - AFT OF PILOT                      TERRAIN-TYPE -LEVEL,FLAT
          ELEVATION-AREA BEING TREATED-FEET -  180                 SWATH RUN-HOW FLOWN - WIND CALM
        REMARKS- CYCLIC CTL LOST WHEN FORE/AFT CYC CTL ASMBY FAILED.LWR ATCH PTS LOOSE.CRASHED IN FLD.
```

## Aircraft

- Registration: [N177B](https://openairdocs.org/deregistered/N177B-2013-11-08), registration cancelled 2013-11-08, S/N 31, built 1948 (OpenAirDocs)
- Reported make and model: BELL 47D
- Registry model: [Bell 47D1](https://openairdocs.org/model/bell-47d1) (registry code 1180802) (OpenAirDocs)
- Registry engine: [Franklin 6V 350 series](https://openairdocs.org/engine/franklin-6v-350-series) (registry code 27043, reciprocating) (OpenAirDocs)
- Category: Helicopter
- Engines: reciprocating
- Damage: Substantial damage
- Airport: Plymouth

## Other investigations on N177B (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 NYC72FNA41](https://openairdocs.org/ntsb/NYC72FNA41), May 12, 1972: Bell 47D (N177B), Accord, MA, destroyed

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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