# NTSB CHI75DEP16: Boeing A75N1, N61836, Friendship, WI, August 17, 1974

- Type: NTSB accident investigation
- Classification: Accident · No injuries · Closed
- Date: August 17, 1974
- Place: Friendship, WI · FRIENDSHIP, WI
- Location: 43.9717° N, 89.8200° W: Placed by OpenAirDocs: center of Friendship, WI, within about 6 miles (OpenAirDocs)
- Nearby events: https://openairdocs.org/map.md?lat=43.9717&lon=-89.8200&mi=10
- Phase of flight: [Maneuvering](https://openairdocs.org/ntsb-phases/450) (OpenAirDocs' grouping)
- Highest injury: No injuries
- Injuries: 1 uninjured
- Status: Completed, report September 20, 1974
- Report: Brief approved by the director
- NTSB case key (mKey): 134529
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=CHI75DEP16
- Page: https://openairdocs.org/ntsb/CHI75DEP16

## NTSB brief

```
----------------------------------------------------------------------------------------------------------------------------
 FILE    DATE          LOCATION          AIRCRAFT DATA       INJURIES       FLIGHT                        PILOT DATA
                                                               F  S M/N     PURPOSE
----------------------------------------------------------------------------------------------------------------------------
3-2352  74/8/17    FRIENDSHIP,WIS      BOEING A75N1        CR-  0  0  1  COMMERCIAL                COMMERCIAL, AGE 30, 3637
        TIME - 1105                    N61836              PX-  0  0  0  AERIAL APPLICATION        TOTAL HOURS, 2250 IN
                                       DAMAGE-DESTROYED    OT-  0  0  0                            TYPE, NOT INSTRUMENT
                                                                                                   RATED.
        DEPARTURE POINT             INTENDED DESTINATION
          COLOMA,WIS                  LOCAL
        TYPE OF ACCIDENT                                         PHASE OF OPERATION
           ENGINE FAILURE OR MALFUNCTION                            IN FLIGHT: SURVEY FIELD/AREA
           COLLIDED WITH: TREES                                     LANDING: OTHER
        PROBABLE CAUSE(S)
           POWERPLANT - MISCELLANEOUS: POWERPLANT FAILURE FOR UNDETERMINED REASONS
           TERRAIN - HIGH OBSTRUCTIONS
        COMPLETE POWER LOSS - COMPLETE ENGINE FAILURE/FLAMEOUT-1 ENGINE
        EMERGENCY CIRCUMSTANCES - FORCED LANDING OFF AIRPORT ON LAND
         SPECIAL DATA
          TOTAL HOURS IN CROP CONTROL - 3637                       KIND OF OPERATION - SPRAYING CROPS
          KIND OF CROP - POTATOES                                  TYPE OF CHEMICAL USED - LIQUID CHEMICAL-TOXIC
          PILOT' S SEAT BELT -FASTENED-PROPERLY                    GLOVES - NOT USED
          GOGGLES - NOT USED                                       CRASH HELMET - AVAILABLE USED
          COCKPIT CRASHPAD - INSTALLED                             CRASH BAR - INSTALLED
          TANK/HOPPER-LOCATION - FORWARD OF PILOT                  TERRAIN-TYPE -LEVEL,FLAT
          ELEVATION-AREA BEING TREATED-FEET -  1250                SWATH RUN-HOW FLOWN - UPWIND
          PROCEDURE TURNAROUND - SECOND 1/3 TURN
         FIRE AFTER IMPACT
```

## Aircraft

- Registration: [N61836](https://openairdocs.org/deregistered/N61836-2018-01-25), registration cancelled 2018-01-25, S/N 75-2127, built 1941 (OpenAirDocs)
- Reported make and model: BOEING A75N1
- Registry model: [Boeing A75N1(PT17)](https://openairdocs.org/model/boeing-a75n1-pt17) (registry code 1380134) (OpenAirDocs)
- Registry engine: [Pratt & Whitney R-985 series](https://openairdocs.org/engine/pratt-whitney-r-985-series) (registry code 52008, reciprocating) (OpenAirDocs)
- Category: Airplane
- 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 19740817027419A](https://openairdocs.org/incident/19740817027419A), Aug 17, 1974: Boeing A75N1, Friendship, WI, 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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