# NTSB CHI90LA219: Grumman G-164B, N6745K, Columbus, NE, August 9, 1990

- Type: NTSB accident investigation
- Classification: Accident · No injuries · Limited investigation · Final report
- Date: August 9, 1990, 16:30 local (21:30 UTC)
- Place: Columbus, NE
- Coordinates: 41.430835, -97.350921 (estimated)
- Nearby events: https://openairdocs.org/map.md?lat=41.4308&lon=-97.3509&mi=10
- Phase of flight: [Landing](https://openairdocs.org/ntsb-phases/550) (OpenAirDocs' grouping)
- Highest injury: No injuries
- Injuries: 1 uninjured
- Status: Completed, report September 28, 1992
- Report: Approved by Office Director
- NTSB case key (mKey): 14741
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=CHI90LA219
- NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/14741/pdf
- Page: https://openairdocs.org/ntsb/CHI90LA219

## Probable cause

STANDING WATER ON THE APPROACH END OF THE RUNWAY.

## Sequence of events

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

- On ground/water encounter with terrain/water, landing - roll
  - terrain condition - grass (contributing factor)
  - terrain condition - water (cause)
  - aircraft control - not possible, pilot in command (contributing factor)
- Nose over, landing - roll

## Analysis

CORN FIELD IRRIGATORS HAD FLOODED THE APPROACH END OF THE LANDING STRIP. THE PILOT SAID THAT HE WAS UNABLE TO SEE THE WATER, DUE TO THE HEIGHT OF THE GRASS, AND SHORTLY AFTER TOUCHDOWN, THE ACFT FLIPPED INVERTED.

## Aircraft

- Registration: [N6745K](https://openairdocs.org/aircraft/N6745K), registered now, S/N 446B (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: 446B
- Engines: P&W R-1340-AN1 600 horsepower reciprocating
- Damage: Substantial damage
- Flight: Aerial application, Part 137
- Operator: Sedlak Aerial Spraying Ltd.
- Airport: NONE, Miller "Pvt"

## Flight crew

As NTSB recorded them. NTSB leaves out names.

- Pilot; age 49; commercial; airplane ratings: single-engine land; medical: class 2, valid medical--w/ waivers/lim; flight hours: 10,088 total, 5,668 in this make and model, 9,991 as pilot in command, 124 in the last 90 days, 83 in the last 30 days, 5 in the last 24 hours

## Weather

- Conditions: Visual (VMC), Day
- Wind: 80° at 5 knots
- Visibility: 7 statute miles
- Lowest ceiling: none
- Temperature: -0 °F, dew point -0 °F
- Observed at: OLU, 5 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 19900809031829A](https://openairdocs.org/incident/19900809031829A), Aug 9, 1990: Scwzer G164B, Columbus, NE, Substantial damage. Landed on irrigation flooded runway and flipped over. Reported tall grass hid water until landing committed.

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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