# NTSB MIA77DLG20: Bell 47D, N586T, Oswego, SC, June 25, 1977

- Type: NTSB accident investigation
- Classification: Accident · No injuries · Closed
- Date: June 25, 1977
- Place: Oswego, SC · OSWEGO, SC
- Location: 34.0056° N, 80.2861° W: Placed by OpenAirDocs: center of Oswego, SC, within about 6 miles (OpenAirDocs)
- Nearby events: https://openairdocs.org/map.md?lat=34.0056&lon=-80.2861&mi=10
- Phase of flight: [Maneuvering](https://openairdocs.org/ntsb-phases/450) (OpenAirDocs' grouping)
- Highest injury: No injuries
- Injuries: 1 uninjured
- Status: Completed, report November 14, 1977
- Report: Brief approved by the director
- NTSB case key (mKey): 157221
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=MIA77DLG20
- Page: https://openairdocs.org/ntsb/MIA77DLG20

## NTSB brief

```
----------------------------------------------------------------------------------------------------------------------------
 FILE    DATE          LOCATION          AIRCRAFT DATA       INJURIES       FLIGHT                        PILOT DATA
                                                               F  S M/N     PURPOSE
----------------------------------------------------------------------------------------------------------------------------
3-2435  77/6/25    OSWEGO,SC           BELL 47D            CR-  0  0  1  COMMERCIAL                COMMERCIAL, FL.INSTR.,
        TIME - 1230                    N586T               PX-  0  0  0  AERIAL APPLICATION        AGE 32, 6051 TOTAL HOURS,
                                       DAMAGE-SUBSTANTIAL  OT-  0  0  0                            900 IN TYPE, NOT
                                                                                                   INSTRUMENT RATED.
        NAME OF AIRPORT - LOADING SITE
        DEPARTURE POINT             INTENDED DESTINATION
          OSWEGO,SC                   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
        FACTOR(S)
           MISCELLANEOUS ACTS,CONDITIONS - SEPARATION IN FLIGHT
         SPECIAL DATA
          TOTAL HOURS IN CROP CONTROL -  115                       KIND OF OPERATION - SPRAYING CROPS
          KIND OF CROP - COTTON                                    TYPE OF CHEMICAL USED - LIQUID CHEMICAL-TOXIC
          PILOT' S SEAT BELT -FASTENED-PROPERLY                    GLOVES - NOT USED
          GOGGLES - USED                                           CRASH HELMET - AVAILABLE USED
          COCKPIT CRASHPAD - NOT INSTALLED                         CRASH BAR - NOT INSTALLED
          TANK/HOPPER-LOCATION - FORWARD OF PILOT                  TERRAIN-TYPE -LEVEL,FLAT
          ELEVATION-AREA BEING TREATED-FEET -  195                 SWATH RUN-HOW FLOWN - WIND CALM
        REMARKS- TAIL ROTOR STRUCK WIRE.COMPLETE TAIL ROTOR AND GEARBOX SEPARATED.
```

## Aircraft

- Registration: [N586T](https://openairdocs.org/deregistered/N586T-2013-09-30), registration cancelled 2013-09-30, S/N 207, built 1951 (OpenAirDocs)
- Reported make and model: BELL 47D
- Registry model: [Bell 47D1](https://openairdocs.org/model/bell-47d1) (registry code 1180802) (OpenAirDocs)
- Registry engine: [Amateur-built UNKNOWN ENG](https://openairdocs.org/engine/amateur-built-unknown-eng) (registry code 99999) (OpenAirDocs)
- Category: Helicopter
- Engines: reciprocating
- Damage: Substantial damage
- Airport: Loading Site

## 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 19770625017729A](https://openairdocs.org/incident/19770625017729A), Jun 25, 1977: Bell 47D1, Oswego, SC, Substantial damage. Tail rotor struck wire. Complete tail rotor and gearbox separated.

## Other investigations on N586T (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 MIA85LA214](https://openairdocs.org/ntsb/MIA85LA214), Jul 18, 1985: Bell 47D1 (N586T), Moultrie, GA, substantial damage
- [NTSB MIA84LA134](https://openairdocs.org/ntsb/MIA84LA134), Apr 12, 1984: Bell 47D1 (N586T), Berlin, GA, destroyed
- [NTSB MIA73DLG02](https://openairdocs.org/ntsb/MIA73DLG02), Jul 5, 1972: Bell 47D1 (N586T), Dalzell, NC, substantial damage
- [NTSB MIA72DLG09](https://openairdocs.org/ntsb/MIA72DLG09), Aug 20, 1971: Bell 47D-1 (N586T), Rembert, SC, substantial damage
- [NTSB FTW66A0070](https://openairdocs.org/ntsb/FTW66A0070), Feb 10, 1966: Bell 47G (N586T), Wetmore, TX, 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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