# NTSB CHI73DEP66: Bell 47G-5, N7840S, Appleton, WI, June 24, 1973

- Type: NTSB accident investigation
- Classification: Accident · Minor injuries · Closed
- Date: June 24, 1973
- Place: Appleton, WI · APPLETON, WI
- Location: 44.2798° N, 88.3883° W: Placed by OpenAirDocs: center of Appleton, WI, within about 6 miles (OpenAirDocs)
- Nearby events: https://openairdocs.org/map.md?lat=44.2798&lon=-88.3883&mi=10
- Phase of flight: [Maneuvering](https://openairdocs.org/ntsb-phases/450) (OpenAirDocs' grouping)
- Highest injury: Minor injuries
- Injuries: 1 minor
- Status: Completed, report July 26, 1973
- Report: Brief approved by the director
- NTSB case key (mKey): 190546
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=CHI73DEP66
- Page: https://openairdocs.org/ntsb/CHI73DEP66

## NTSB brief

```
----------------------------------------------------------------------------------------------------------------------------
 FILE    DATE          LOCATION          AIRCRAFT DATA       INJURIES       FLIGHT                        PILOT DATA
                                                               F  S M/N     PURPOSE
----------------------------------------------------------------------------------------------------------------------------
3-1239  73/6/24    APPLETON,WIS        BELL 47G-5          CR-  0  0  1  COMMERCIAL                COMMERCIAL, AGE 33, 3500
        TIME - 1815                    N7840S              PX-  0  0  0  AERIAL APPLICATION        TOTAL HOURS, 85 IN TYPE,
                                       DAMAGE-SUBSTANTIAL  OT-  0  0  0                            NOT INSTRUMENT RATED.
        DEPARTURE POINT             INTENDED DESTINATION
          APPLETON,WIS                LOCAL
        TYPE OF ACCIDENT                                         PHASE OF OPERATION
           COLLIDED WITH: WIRES/POLES                               IN FLIGHT: SWATH RUN
        PROBABLE CAUSE(S)
           PILOT IN COMMAND - MISJUDGED CLEARANCE
        FACTOR(S)
           TERRAIN - HIGH OBSTRUCTIONS
         SPECIAL DATA
          TOTAL HOURS IN CROP CONTROL - 2000                       KIND OF OPERATION - SPRAYING CROPS
          KIND OF CROP - PEAS                                      TYPE OF CHEMICAL USED - LIQUID CHEMICAL-NONTOXIC
          PILOT' S SEAT BELT -UNKNOWN/NOT REPORTED                 GLOVES - NOT USED
          GOGGLES - NOT USED                                       CRASH HELMET - AVAILABLE USED
          COCKPIT CRASHPAD - NOT INSTALLED                         CRASH BAR - NOT INSTALLED
          TANK/HOPPER-LOCATION - SIDES                             TERRAIN-TYPE -LEVEL,FLAT
          ELEVATION-AREA BEING TREATED-FEET -  750                 SWATH RUN-HOW FLOWN - CROSSWIND
        REMARKS- WIRES 20FT AGL,AT END OF 2ND PASS HOOKED TELEPHONE LINES ABV SKID AREA.
```

## Aircraft

- Registration: [N7840S](https://openairdocs.org/deregistered/N7840S-2018-03-06), registration cancelled 2018-03-06, S/N 7861, built 1967 (OpenAirDocs)
- Reported make and model: BELL 47G-5
- 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 19730624017859A](https://openairdocs.org/incident/19730624017859A), Jun 24, 1973: Bell 47G5, Appleton, WI, Substantial damage. Wires 20FT AGL,at end of 2nd pass hooked telephone lines abv skid area.

## Other investigations on N7840S (4)

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 CHI86FA017](https://openairdocs.org/ntsb/CHI86FA017), Oct 27, 1985: Bell 47G-5 (N7840S), Plainfield, WI, destroyed, 1 fatal
- [NTSB MKC73FER04](https://openairdocs.org/ntsb/MKC73FER04), Jul 5, 1972: EL Tomcat MK6B (N7840S), Miesville, MN, destroyed
- [NTSB MKC72DER18](https://openairdocs.org/ntsb/MKC72DER18), Aug 25, 1971: Bell 47G-5 (N7840S), Blomkist, MN, destroyed
- [NTSB LAX71DUM06](https://openairdocs.org/ntsb/LAX71DUM06), Jul 19, 1970: Bell 47G5 (N7840S), Imperial, CA, 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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