# NTSB NYC78FA079: Bell 47G, N8593F, Riverhead, NY, August 13, 1978

- Type: NTSB accident investigation
- Classification: Accident · No injuries · Closed
- Date: August 13, 1978
- Place: Riverhead, NY · RIVERHEAD, NY
- Location: 40.9513° N, 72.6761° W: Placed by OpenAirDocs: center of Riverhead, NY, within about 6 miles (OpenAirDocs)
- Nearby events: https://openairdocs.org/map.md?lat=40.9513&lon=-72.6761&mi=10
- Phase of flight: [Takeoff](https://openairdocs.org/ntsb-phases/300) (OpenAirDocs' grouping)
- Highest injury: No injuries
- Injuries: 1 uninjured
- Status: Completed, report September 25, 1978
- Report: Brief approved by the director
- NTSB case key (mKey): 140054
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=NYC78FA079
- Page: https://openairdocs.org/ntsb/NYC78FA079

## NTSB brief

```
----------------------------------------------------------------------------------------------------------------------------
 FILE    DATE          LOCATION          AIRCRAFT DATA       INJURIES       FLIGHT                        PILOT DATA
                                                               F  S M/N     PURPOSE
----------------------------------------------------------------------------------------------------------------------------
3-2357  78/8/13    RIVERHEAD,NY        BELL 47G            CR-  0  0  1  COMMERCIAL                COMMERCIAL, AGE 25, 2900
        TIME - 1730                    N8593F              PX-  0  0  0  AERIAL APPLICATION        TOTAL HOURS, 1900 IN
                                       DAMAGE-SUBSTANTIAL  OT-  0  0  0                            TYPE, INSTRUMENT RATED.
        DEPARTURE POINT             INTENDED DESTINATION
          RIVERHEAD,NY                LOCAL
        TYPE OF ACCIDENT                                         PHASE OF OPERATION
           HARD LANDING                                             TAKEOFF: RUNNING
        PROBABLE CAUSE(S)
           PILOT IN COMMAND - FAILED TO MAINTAIN ADEQUATE ROTOR R.P.M.
        FACTOR(S)
           WEATHER - HIGH DENSITY ALTITUDE
        SKY CONDITION                                            CEILING AT ACCIDENT SITE
          CLEAR                                                    UNLIMITED
        VISIBILITY AT ACCIDENT SITE                              PRECIPITATION AT ACCIDENT SITE
          3 MILES OR LESS                                          NONE
        OBSTRUCTIONS TO VISION AT ACCIDENT SITE                  TEMPERATURE-F
          HAZE                                                      76
        WIND DIRECTION-DEGREES                                   WIND VELOCITY-KNOTS
          150                                                       7
        TYPE OF WEATHER CONDITIONS                               TYPE OF FLIGHT PLAN
          VFR                                                      NONE
         SPECIAL DATA
          TOTAL HOURS IN CROP CONTROL -  700                       KIND OF OPERATION - SPRAYING CROPS
          KIND OF CROP - POTATOES                                  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
          TERRAIN-TYPE -LEVEL,FLAT                                 ELEVATION-AREA BEING TREATED-FEET -  50
          SWATH RUN-HOW FLOWN - WIND CALM                          PROCEDURE TURNAROUND - ENTRY TO PROCEDURE TURN
        REMARKS- ROTOR RPM DECAYED ON INITIAL LIFT-OFF.ACFT HEAVILY LOADED. D/A 1300.
```

## Aircraft

- Registration: [N8593F](https://openairdocs.org/aircraft/N8593F), registered now, S/N 7820, built 1966 (OpenAirDocs)
- Reported make and model: BELL 47G
- Registry model: [Bell 47G-5](https://openairdocs.org/model/bell-47g-5) (registry code 1181032) (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 19780813030209A](https://openairdocs.org/incident/19780813030209A), Aug 13, 1978: Bell 47B3, Riverhead, NY, Substantial damage. Rotor RPM decayed on initial lift-off. Acft heavily loaded. D/a 13

## Other investigations on N8593F (3)

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 NYC79FHJ21](https://openairdocs.org/ntsb/NYC79FHJ21), Jul 6, 1979: Bell 47G-5 (N8593F), Jamesport, NY, destroyed, 1 fatal
- [NTSB NYC71FHJ07](https://openairdocs.org/ntsb/NYC71FHJ07), Sep 2, 1970: Bell 47-G5 (N8593F), Wading River, NY, substantial damage
- [NTSB NYC70D0002](https://openairdocs.org/ntsb/NYC70D0002-107186), Dec 1, 1969: Bell 47G-5 (N8593F), Clarkstown, NY, 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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