# NTSB SEA67F0020: Aeronca 15AC, N1164H, Fort Benton, MT, June 16, 1966

- Type: NTSB accident investigation
- Classification: Accident · No injuries · Closed
- Date: June 16, 1966
- Place: Fort Benton, MT · FORT BENTON, MT
- Location: 47.8288° N, 110.6561° W: Placed by OpenAirDocs: center of Fort Benton, MT, within about 6 miles (OpenAirDocs)
- Nearby events: https://openairdocs.org/map.md?lat=47.8288&lon=-110.6561&mi=10
- Phase of flight: [Maneuvering](https://openairdocs.org/ntsb-phases/450) (OpenAirDocs' grouping)
- Highest injury: No injuries
- Injuries: 1 uninjured
- Status: Completed, report December 21, 1966
- Report: Brief approved by the director
- NTSB case key (mKey): 122799
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=SEA67F0020
- Page: https://openairdocs.org/ntsb/SEA67F0020

## NTSB brief

```
----------------------------------------------------------------------------------------------------------------------------
 FILE    DATE          LOCATION          AIRCRAFT DATA       INJURIES       FLIGHT                        PILOT DATA
                                                               F  S M/N     PURPOSE
----------------------------------------------------------------------------------------------------------------------------
3-3037  66/6/16    FORT BENTON MONT    AERONCA 15AC        CR-  0  0  1  COMMERCIAL                COMMERCIAL, AGE 42, 1509
        TIME - 1945                    N1164H              PX-  0  0  0  AERIAL APPLICATION        TOTAL HOURS, 31 IN TYPE,
                                       DAMAGE-SUBSTANTIAL  OT-  0  0  0                            NOT INSTRUMENT RATED.
        TYPE OF ACCIDENT                                         PHASE OF OPERATION
           STALL: MUSH                                              IN FLIGHT: PROCEDURE TURNAROUND
        PROBABLE CAUSE(S)
           PILOT IN COMMAND - FAILED TO OBTAIN/MAINTAIN FLYING SPEED
        FACTOR(S)
           WEATHER - DOWNDRAFT,UPDRAFTS
           WEATHER - HIGH DENSITY ALTITUDE
        WEATHER BRIEFING - NO RECORD OF BRIEFING RECEIVED
        SKY CONDITION                                            CEILING AT ACCIDENT SITE
          CLEAR                                                    UNLIMITED
        VISIBILITY AT ACCIDENT SITE                              PRECIPITATION AT ACCIDENT SITE
          5 OR OVER(UNLIMITED)                                     NONE
        OBSTRUCTIONS TO VISION AT ACCIDENT SITE                  TEMPERATURE-F
          NONE                                                      75
        WIND DIRECTION-DEGREES                                   WIND VELOCITY-KNOTS
          135                                                       5
        TYPE OF WEATHER CONDITIONS                               TYPE OF FLIGHT PLAN
          VFR                                                      NONE
         SPECIAL DATA
          TOTAL HOURS IN CROP CONTROL -  400                       KIND OF OPERATION - SPRAYING CROPS
          KIND OF CROP - GRAIN FIELDS                              TYPE OF CHEMICAL USED - LIQUID CHEMICAL-NONTOXIC
          PILOT' S SEAT BELT -FASTENED-PROPERLY                    GLOVES - NOT USED
          GOGGLES - NOT USED                                       CRASH HELMET - AVAILABLE USED
          COCKPIT CRASHPAD - NOT INSTALLED                         CRASH BAR - NOT INSTALLED
          TANK/HOPPER-LOCATION - FORWARD OF PILOT                  TERRAIN-TYPE -HILLY
          ELEVATION-AREA BEING TREATED-FEET -  3200                SWATH RUN-HOW FLOWN - CROSSWIND
          PROCEDURE TURNAROUND - ENTRY TO PROCEDURE TURN
```

## Aircraft

- Registration: [N1164H](https://openairdocs.org/aircraft/N1164H), registered now, S/N 15AC-179, built 1948 (OpenAirDocs)
- Reported make and model: AERONCA 15AC
- Registry model: [Aeronca 15AC](https://openairdocs.org/model/aeronca-15ac) (registry code 0191202) (OpenAirDocs)
- Registry engine: [Continental C145 series](https://openairdocs.org/engine/continental-c145-series) (registry code 17012, reciprocating) (OpenAirDocs)
- Category: Airplane
- Engines: reciprocating
- Damage: 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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