# NTSB SEA81DYA24: Grumman G-164, N715Y, Rigby, ID, August 18, 1981

- Type: NTSB accident investigation
- Classification: Accident · No injuries · Closed
- Date: August 18, 1981
- Place: Rigby, ID · RIGBY, ID
- Location: 43.6736° N, 111.9135° W: Placed by OpenAirDocs: center of Rigby, ID, within about 6 miles (OpenAirDocs)
- Nearby events: https://openairdocs.org/map.md?lat=43.6736&lon=-111.9135&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 14, 1981
- Report: Brief approved by the director
- NTSB case key (mKey): 124051
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=SEA81DYA24
- Page: https://openairdocs.org/ntsb/SEA81DYA24

## NTSB brief

```
----------------------------------------------------------------------------------------------------------------------------
 FILE    DATE          LOCATION          AIRCRAFT DATA       INJURIES       FLIGHT                        PILOT DATA
                                                               F  S M/N     PURPOSE
----------------------------------------------------------------------------------------------------------------------------
3-2670  81/8/18  NR.RIGBY,ID           GRUMMAN G-164       CR-  0  0  1  COMMERCIAL                COMMERCIAL, AGE 57, 10720
        TIME - 0700                    N715Y               PX-  0  0  0  AERIAL APPLICATION        TOTAL HOURS, 700 IN TYPE,
                                       DAMAGE-SUBSTANTIAL  OT-  0  0  0                            NOT INSTRUMENT RATED.
        DEPARTURE POINT             INTENDED DESTINATION
         RIGBY,ID                     LOCAL
        TYPE OF ACCIDENT                                         PHASE OF OPERATION
           STALL: MUSH                                              IN FLIGHT: STARTING SWATH RUN
        PROBABLE CAUSE(S)
           PILOT IN COMMAND - MISJUDGED SPEED AND CLEARANCE
        FACTOR(S)
           WEATHER - DOWNDRAFT,UPDRAFTS
           WEATHER - HIGH DENSITY ALTITUDE
           MISCELLANEOUS ACTS,CONDITIONS - JETTISONED LOAD
        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                                                      65
        TYPE OF WEATHER CONDITIONS                               TYPE OF FLIGHT PLAN
          VFR                                                      NONE
         SPECIAL DATA
          TOTAL HOURS IN CROP CONTROL - UNKNOWN/NOT REPORTED       KIND OF OPERATION - SPRAYING CROPS
          KIND OF CROP - POTATOES                                  TYPE OF CHEMICAL USED - LIQUID CHEMICAL-TOXIC
          PILOT' S SEAT BELT -UNKNOWN/NOT REPORTED                 GLOVES - NOT USED
          GOGGLES - NOT USED                                       CRASH HELMET - AVAILABLE USED
          COCKPIT CRASHPAD - INSTALLED                             CRASH BAR - INSTALLED
          TANK/HOPPER-LOCATION - FORWARD OF PILOT                  TERRAIN-TYPE -ROLLING
          ELEVATION-AREA BEING TREATED-FEET -  5500                SWATH RUN-HOW FLOWN - DOWNWIND
          PROCEDURE TURNAROUND - ENTRY TO PROCEDURE TURN
        REMARKS- PLT RPRTD ENCTRG DWNDFT DRG TURN TO START INITIAL SWATH RUN.D/A APRX 7600FT.
```

## Aircraft

- Registration: N715Y (not matched to a registry record)
- Reported make and model: GRUMMAN G-164
- 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 19810818050289A](https://openairdocs.org/incident/19810818050289A), Aug 18, 1981: Gulstm G164, Rigby, ID, Substantial damage. Allowed aircraft to strike ground during start of spray run. Density altitude and pilot fatigue factors.

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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