# NTSB UNK64X2004: Piper J3, N3666K, Winifred, MT, May 29, 1964

- Type: NTSB accident investigation
- Classification: Accident · No injuries · Closed
- Date: May 29, 1964
- Place: Winifred, MT · WINIFRED, MT
- Location: 47.5613° N, 109.3765° W: Placed by OpenAirDocs: center of Winifred, MT, within about 6 miles (OpenAirDocs)
- Nearby events: https://openairdocs.org/map.md?lat=47.5613&lon=-109.3765&mi=10
- Phase of flight: [Initial climb](https://openairdocs.org/ntsb-phases/350) (OpenAirDocs' grouping)
- Highest injury: No injuries
- Injuries: 1 uninjured
- Status: Completed, report September 28, 1964
- Report: Brief approved by the director
- NTSB case key (mKey): 183758
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=UNK64X2004
- Page: https://openairdocs.org/ntsb/UNK64X2004

## NTSB brief

```
----------------------------------------------------------------------------------------------------------------------------
 FILE    DATE          LOCATION          AIRCRAFT DATA       INJURIES       FLIGHT                        PILOT DATA
                                                               F  S M/N     PURPOSE
----------------------------------------------------------------------------------------------------------------------------
3-1462  64/5/29    WINIFRED MONT       PIPER J3            CR-  0  0  1  COMMERCIAL                COMMERCIAL, FL.INSTR.,
        TIME - 1820                    N3666K              PX-  0  0  0  ASSOC CROP CTL ACTIVITY   AGE 47, 12000 TOTAL
                                       DAMAGE-SUBSTANTIAL  OT-  0  0  0                            HOURS, ALL IN TYPE, NOT
                                                                                                   INSTRUMENT RATED.
        TYPE OF ACCIDENT                                         PHASE OF OPERATION
           STALL                                                    TAKEOFF: INITIAL CLIMB
           COLLIDED WITH: DITCHES                                   TAKEOFF: ABORTED
        PROBABLE CAUSE(S)
           PILOT IN COMMAND - FAILED TO OBTAIN/MAINTAIN FLYING SPEED
           PILOT IN COMMAND - SELECTED UNSUITABLE TERRAIN
        FACTOR(S)
           TERRAIN - WET,SOFT GROUND
         SPECIAL DATA
          TOTAL HOURS IN CROP CONTROL - UNKNOWN/NOT REPORTED       KIND OF OPERATION - FERTILIZING (LIQUID)
          KIND OF CROP - UNKNOWN/NOT REPORTED                      TYPE OF CHEMICAL USED - LIQUID CHEMICAL-NONTOXIC
          PILOT' S SEAT BELT -FASTENED-PROPERLY                    CRASH HELMET - AVAILABLE USED
          COCKPIT CRASHPAD - NOT INSTALLED                         CRASH BAR - NOT INSTALLED
          TANK/HOPPER-LOCATION - UNKNOWN/NOT REPORTED              ELEVATION-AREA BEING TREATED-FEET -  3200
```

## Aircraft

- Registration: [N3666K](https://openairdocs.org/aircraft/N3666K), registered now, S/N 22356, built 1946 (OpenAirDocs)
- Reported make and model: PIPER J3
- Registry model: [Piper J3C-65](https://openairdocs.org/model/piper-j3c-65) (registry code 7100510) (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

## Other investigations on N3666K (2)

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 WPR22LA268](https://openairdocs.org/ntsb/WPR22LA268), Jul 22, 2022: Piper J3C-65 (N3666K), Huntington Beach, CA, substantial damage. Probable cause: A total loss of engine power due to fuel starvation and the pilot’s mismanagement of the available fuel at an altitude too low for recovery. Contributing was the pilot’s delayed decision to switch…
- [NTSB MIA87LA076](https://openairdocs.org/ntsb/MIA87LA076), Jan 19, 1987: Piper J3-C65 (N3666K), Pembroke Pines, FL, 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.

---
OpenAirDocs.org is an independent research project of [Contrail Labs](https://contraillabs.com/). It is not affiliated with the FAA or the NTSB. Source documents are U.S. government works in the public domain.