# NTSB DEN74DTE80: Piper PA-18, N333TM, Two Buttes, CO, June 10, 1974

- Type: NTSB accident investigation
- Classification: Accident · No injuries · Closed
- Date: June 10, 1974
- Place: Two Buttes, CO · TWO BUTTES, CO
- Location: 37.5607° N, 102.3966° W: Placed by OpenAirDocs: center of Two Buttes, CO, within about 6 miles (OpenAirDocs)
- Nearby events: https://openairdocs.org/map.md?lat=37.5607&lon=-102.3966&mi=10
- Phase of flight: [Maneuvering](https://openairdocs.org/ntsb-phases/450) (OpenAirDocs' grouping)
- Highest injury: No injuries
- Injuries: 1 uninjured
- Status: Completed, report August 9, 1974
- Report: Brief approved by the director
- NTSB case key (mKey): 128247
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=DEN74DTE80
- Page: https://openairdocs.org/ntsb/DEN74DTE80

## NTSB brief

```
----------------------------------------------------------------------------------------------------------------------------
 FILE    DATE          LOCATION          AIRCRAFT DATA       INJURIES       FLIGHT                        PILOT DATA
                                                               F  S M/N     PURPOSE
----------------------------------------------------------------------------------------------------------------------------
3-1778  74/6/10    TWO BUTTES,COLO     PIPER PA-18         CR-  0  0  1  COMMERCIAL                COMMERCIAL, AGE 26, 3290
        TIME - 1600                    N333TM              PX-  0  0  0  AERIAL APPLICATION        TOTAL HOURS, 3235 IN
                                       DAMAGE-SUBSTANTIAL  OT-  0  0  0                            TYPE, NOT INSTRUMENT
                                                                                                   RATED.
        DEPARTURE POINT             INTENDED DESTINATION
          TWO BUTTES,COLO             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)
           TERRAIN - HIGH OBSTRUCTIONS
         SPECIAL DATA
          TOTAL HOURS IN CROP CONTROL - 2500                       KIND OF OPERATION - SPRAYING CROPS
          KIND OF CROP - GRAIN FIELDS                              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 - AFT OF PILOT                      TERRAIN-TYPE -LEVEL,FLAT
          ELEVATION-AREA BEING TREATED-FEET -  4100                SWATH RUN-HOW FLOWN - WIND CALM
        REMARKS- HIT GUY WIRE
```

## Aircraft

- Registration: [N333TM](https://openairdocs.org/aircraft/N333TM), registered now, S/N 18-8939, built 1971 (OpenAirDocs)
- Reported make and model: PIPER PA-18
- Registry model: [Piper PA-18-150](https://openairdocs.org/model/piper-pa-18-150) (registry code 7101828) (OpenAirDocs)
- Registry engine: [Lycoming 0-320 series](https://openairdocs.org/engine/lycoming-0-320-series) (registry code 41508, reciprocating) (OpenAirDocs)
- Category: Airplane
- 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 19740610020489A](https://openairdocs.org/incident/19740610020489A), Jun 10, 1974: Piper PA18150, Two Buttes, CO, Substantial damage. Hit guy wire

## Other investigations on N333TM (1)

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 WPR25LA155](https://openairdocs.org/ntsb/WPR25LA155), May 10, 2025: Piper PA-18-150 (N333TM), Enumclaw, WA, substantial damage, investigation ongoing

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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