# NTSB MKC88LA158: Grumman G-164B, N8405K, Humphrey, AR, August 16, 1988

- Type: NTSB accident investigation
- Classification: Accident · No injuries · Limited investigation · Final report
- Date: August 16, 1988, 07:10 local (12:10 UTC)
- Place: Humphrey, AR
- Coordinates: 34.41957, -91.700798 (estimated)
- Nearby events: https://openairdocs.org/map.md?lat=34.4196&lon=-91.7008&mi=10
- Phase of flight: [Landing](https://openairdocs.org/ntsb-phases/550) (OpenAirDocs' grouping)
- Highest injury: No injuries
- Injuries: 1 uninjured
- Status: Completed, report October 2, 1989
- Report: Approved by Office Director
- NTSB case key (mKey): 34631
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=MKC88LA158
- NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/34631/pdf
- Page: https://openairdocs.org/ntsb/MKC88LA158

## Sequence of events

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

- Loss of control - on ground/water, landing - roll
  - terrain condition - high vegetation (contributing factor)
  - unsuitable terrain or takeoff/landing/taxi area - selected, pilot in command (cause)
  - clearance - misjudged, pilot in command (cause)
- Nose over, landing - roll
  - terrain condition - ditch (contributing factor)

## Analysis

WHILE ATTEMPTING TO LAND ON A NARROW DIRT ROAD BORDERED BY CROPS, THE PLT SAID HE CONTACTED THE HIGH VEGETATION ON THE RIGHT SIDE. THE ACFT BEGAN TO VEER TO THE RIGHT. THE PLT ATTEMPTED TO STEER TO THE LEFT AND VEERED OFF THE ROADWAY INTO A DITCH AND NOSED OVER. THE PLT FELT THAT ACFT SHOULD NOT BE OPERATED OFF TERRAIN THAT WAS NOT SUITED FOR AIRCRAFT OPERATIONS.

## Aircraft

- Registration: [N8405K](https://openairdocs.org/aircraft/N8405K), registered now, S/N 688B, built 1982 (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: [Pratt & Whitney R1340 series](https://openairdocs.org/engine/pratt-whitney-r1340-series) (registry code 52016, reciprocating) (OpenAirDocs)
- Category: Airplane
- Serial number: 688B
- Airframe hours: 2352
- Engines: P&W R-1340-AN1 600 horsepower reciprocating
- Damage: Substantial damage
- Flight: Aerial application, Part 137
- Operator: Farmers Aerial Seeders
- Registered owner: Farmers Aerial Seeders, Inc
- Airworthiness certificate: Special, Restricted (Special)
- Last inspection: Annual, June 28, 1988, 170 hours before
- Departed: SGT, STUTTGART, AR
- Destination: HUMPHREY, AR
- Airport: NONE, Humphrey, runway 36, dirt

## Flight crew

As NTSB recorded them. NTSB leaves out names.

- Pilot; age 30; commercial; airplane ratings: multi-engine land, single-engine land; medical: class 2, valid medical--no waivers/lim.; seat: left; flight hours: 4,087 total, 3,170 in this make and model, 4,021 as pilot in command, 250 in the last 90 days, 125 in the last 30 days

## Weather

- Conditions: Visual (VMC), Day
- Wind: 60° at 3 knots
- Visibility: 5 statute miles
- Lowest ceiling: none
- Temperature: 86 °F, dew point 73 °F
- Altimeter: 30.00 inHg
- Observed at: PBF, 25 nm away

## 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 19880816033529A](https://openairdocs.org/incident/19880816033529A), Aug 16, 1988: Scwzer G164B, Humphrey, AR, Substantial damage. A wing caught on mature rice causing pilot to over control and run off side of runway into soft field. Nosed over.

## Other investigations on N8405K (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 CEN23LA228](https://openairdocs.org/ntsb/CEN23LA228), May 31, 2023: Grumman Acft ENG Cor-Schweizer G-164 (N8405K), Saffell, AR, substantial damage. Probable cause: The airplane’s encounter with a dust devil after takeoff, which resulted in a loss of lift, and a subsequent loss of control. Contributing to the accident was the presence of a dust devil in the…
- [NTSB FTW93LA167](https://openairdocs.org/ntsb/FTW93LA167), May 26, 1993: Grumman G-164B (N8405K), Stuttgart, AR, destroyed. Probable cause: PILOT'S FAILURE TO MAINTAIN CLEARANCE FROM THE ELECTRICAL WIRES.

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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