# NTSB CHI79FEG21: Sikorsky S-55C, N509Y, Chillicothe, OH, July 30, 1979

- Type: NTSB accident investigation
- Classification: Accident · Serious injuries · Closed
- Date: July 30, 1979
- Place: Chillicothe, OH · CHILLICOTHE, OH
- Location: 39.3405° N, 82.9961° W: Placed by OpenAirDocs: center of Chillicothe, OH, within about 6 miles (OpenAirDocs)
- Nearby events: https://openairdocs.org/map.md?lat=39.3405&lon=-82.9961&mi=10
- Phase of flight: [Maneuvering](https://openairdocs.org/ntsb-phases/450) (OpenAirDocs' grouping)
- Highest injury: Serious injuries
- Injuries: 1 serious
- Status: Completed, report September 14, 1979
- Report: Brief approved by the director
- NTSB case key (mKey): 135208
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=CHI79FEG21
- Page: https://openairdocs.org/ntsb/CHI79FEG21

## NTSB brief

```
----------------------------------------------------------------------------------------------------------------------------
 FILE    DATE          LOCATION          AIRCRAFT DATA       INJURIES       FLIGHT                        PILOT DATA
                                                               F  S M/N     PURPOSE
----------------------------------------------------------------------------------------------------------------------------
3-1834  79/7/30    CHILLICOTHE,OH      SIKORSKY S-55C      CR-  0  1  0  COMMERCIAL                COMMERCIAL, AGE 40, 2204
        TIME - 0950                    N509Y               PX-  0  0  0  AERIAL APPLICATION        TOTAL HOURS, 277 IN TYPE,
                                       DAMAGE-DESTROYED    OT-  0  0  0                            NOT INSTRUMENT RATED.
        DEPARTURE POINT             INTENDED DESTINATION
          CHILLICOTHE,OH              LOCAL
        TYPE OF ACCIDENT                                         PHASE OF OPERATION
           COLLIDED WITH: WIRES/POLES                               IN FLIGHT: SWATH RUN
        PROBABLE CAUSE(S)
           PILOT IN COMMAND - FAILED TO SEE AND AVOID OBJECTS OR OBSTRUCTIONS
         SPECIAL DATA
          TOTAL HOURS IN CROP CONTROL - UNKNOWN/NOT REPORTED       KIND OF OPERATION - SPRAYING CROPS
          KIND OF CROP - BEANS                                     TYPE OF CHEMICAL USED - LIQUID CHEMICAL-NONTOXIC
          PILOT' S SEAT BELT -FASTENED-PROPERLY                    GLOVES - USED
          GOGGLES - USED                                           CRASH HELMET - AVAILABLE USED
          COCKPIT CRASHPAD - NOT INSTALLED                         CRASH BAR - NOT INSTALLED
          TANK/HOPPER-LOCATION - BELLY                             TERRAIN-TYPE -LEVEL,FLAT
          ELEVATION-AREA BEING TREATED-FEET -  610                 SWATH RUN-HOW FLOWN - DOWNWIND
         FIRE AFTER IMPACT
```

## Aircraft

- Registration: [N509Y](https://openairdocs.org/deregistered/N509Y-2018-07-12), registration cancelled 2018-07-12, S/N 55691, built 1958 (OpenAirDocs)
- Reported make and model: SIKORSKY S-55C
- Registry model: [Sikorsky S-55C](https://openairdocs.org/model/sikorsky-s-55c) (registry code 8141606) (OpenAirDocs)
- Registry engine: [Pratt & Whitney R1340 series](https://openairdocs.org/engine/pratt-whitney-r1340-series) (registry code 52016, reciprocating) (OpenAirDocs)
- Category: Helicopter
- Engines: reciprocating
- Damage: Destroyed

## 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 19790730019359A](https://openairdocs.org/incident/19790730019359A), Jul 30, 1979: Skrsky S55C, Chillicothe, OH, Destroyed. Helicopter hit wire while spraying a field.

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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