# NTSB MKC84LA255: Grumman G-164B, N6730K, Marianna, AR, August 16, 1984

- Type: NTSB accident investigation
- Classification: Accident · No injuries · Limited investigation · Final report
- Date: August 16, 1984, 12:30 local (17:30 UTC)
- Place: Marianna, AR
- Coordinates: 34.770652, -90.760467 (estimated)
- Nearby events: https://openairdocs.org/map.md?lat=34.7707&lon=-90.7605&mi=10
- Phase of flight: [Maneuvering](https://openairdocs.org/ntsb-phases/450) (OpenAirDocs' grouping)
- Highest injury: No injuries
- Injuries: 1 uninjured
- Status: Completed
- Report: Approved by Office Director
- NTSB case key (mKey): 33776
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=MKC84LA255
- NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/33776/pdf
- Page: https://openairdocs.org/ntsb/MKC84LA255

## Sequence of events

In NTSB's coding before 2008 (https://www.ntsb.gov/GILS/Documents/codman.pdf).

- In flight collision with terrain/water, maneuvering - aerial application
  - terrain condition - crop
  - proper altitude - not maintained, pilot in command (cause)
  - clearance - misjudged, pilot in command (cause)
- Nose over, maneuvering - aerial application

## Analysis

THE LANDING GEAR CONTACTED THE BEAN CROP WHICH WAS BEING SPRAYED WITH SODIUM CHLORATE AND THE ACFT NOSED OVER.

## Aircraft

- Registration: [N6730K](https://openairdocs.org/aircraft/N6730K), registered now, S/N 441 B, built 1978 (OpenAirDocs)
- Reported make and model: GRUMMAN G-164B
- Registry model: [Grumman Acft ENG Cor-Schweizer G-164B](https://openairdocs.org/model/grumman-acft-eng-cor-schweizer-g-164b) (registry code 3952802) (OpenAirDocs)
- Registry engine: [Continental R-975 series](https://openairdocs.org/engine/continental-r-975-series) (registry code 17037, reciprocating) (OpenAirDocs)
- Category: Airplane
- Serial number: 441B
- Engines: P&W R1340 600 horsepower reciprocating
- Damage: Substantial damage
- Flight: Aerial application, Part 137
- Registered owner: Gibson Flying Service, Inc.
- Airworthiness certificate: Special, Restricted (Special)
- Departed: 6M7, MARIANNA, AR

## Flight crew

As NTSB recorded them. NTSB leaves out names.

- Pilot; age 22; commercial; airplane ratings: single-engine land, single-engine sea; medical: class 2, valid medical--w/ waivers/lim; seat: center; flight hours: 2,257 total, 1,619 in this make and model, 2,257 as pilot in command, 300 in the last 90 days, 4 in the last 24 hours

## Weather

- Conditions: Visual (VMC), Day
- Visibility: 10 statute miles
- Lowest ceiling: none
- Temperature: 90 °F

## 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 19840816041509A](https://openairdocs.org/incident/19840816041509A), Aug 16, 1984: Scwzer G164B, Marianna, AR, Substantial damage. Ag aircrafts wheels touched milo crop during a spray run. Aircraft flipped over.

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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