# NTSB MKC90LA118: Grumman G-164A, N6636Q, Morton, AR, May 26, 1990

- Type: NTSB accident investigation
- Classification: Accident · No injuries · Limited investigation · Final report
- Date: May 26, 1990, 18:00 local (23:00 UTC)
- Place: Morton, AR
- Coordinates: 34.91016, -91.10099 (estimated)
- Nearby events: https://openairdocs.org/map.md?lat=34.9102&lon=-91.1010&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 10, 1992
- Report: Approved by Office Director
- NTSB case key (mKey): 34989
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=MKC90LA118
- NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/34989/pdf
- Page: https://openairdocs.org/ntsb/MKC90LA118

## Probable cause

THE PILOT'S FAILURE TO MAINTAIN DIRECTIONAL CONTROL DUE TO INADEQUATE COMPENSATION FOR WIND CONDITIONS.

## 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
  - weather condition - crosswind (contributing factor)
  - compensation for wind conditions - inadequate, pilot in command (cause)
  - directional control - not maintained, pilot in command (cause)
  - ground loop/swerve - inadvertent, pilot in command (cause)
- On ground/water encounter with terrain/water, landing - roll
  - terrain condition - ditch
- Nose over, landing - roll

## Analysis

THE COMMERCIAL PILOT SAID THAT HE WAS UNABLE TO MAINTAIN DIRECTIONAL CONTROL DURING A LANDING WITH A CROSSWIND. SUBSEQUENTLY, THE AIRCRAFT VEERED OFF THE RUNWAY, COLLIDED WITH A DITCH AND NOSED OVER.

## Aircraft

- Registration: [N6636Q](https://openairdocs.org/deregistered/N6636Q-2013-10-24), registration cancelled 2013-10-24, S/N 1694, built 1976 (OpenAirDocs)
- Reported make and model: GRUMMAN G-164A
- Registry model: [Grumman Acft ENG Cor-Schweizer G-164A](https://openairdocs.org/model/grumman-acft-eng-cor-schweizer-g-164a) (registry code 3952801) (OpenAirDocs)
- Registry engine: [Amateur-built UNKNOWN ENG](https://openairdocs.org/engine/amateur-built-unknown-eng) (registry code 99999) (OpenAirDocs)
- Category: Airplane
- Serial number: 1694
- Engines: P&W R-1340-AN1 600 horsepower reciprocating
- Damage: Substantial damage
- Flight: Aerial application, Part 137
- Operator: Cain Flying Service Inc.
- Registered owner: Unknown
- Airport: NONE, Cain, runway 7, 2,600 × 75 ft, grass/turf

## Flight crew

As NTSB recorded them. NTSB leaves out names.

- Pilot; age 60; commercial; airplane ratings: multi-engine land, single-engine land; instrument ratings: airplane; medical: class 2, valid medical--w/ waivers/lim; flight hours: 11,852 total, 8,100 in this make and model, 11,000 as pilot in command, 84 in the last 90 days, 36 in the last 30 days, 8 in the last 24 hours

## Weather

- Conditions: Visual (VMC), Day
- Wind: 310° at 10 knots
- Visibility: 10 statute miles
- Lowest ceiling: 8,000 ft broken
- Temperature: -0 °F, dew point -0 °F
- Observed at: LIT, 60 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 19900526020329A](https://openairdocs.org/incident/19900526020329A), May 26, 1990: Scwzer G164A, Morton, AR, Substantial damage. Unable maintain directional control landing in crosswind. Exited runway. Hit ditch. Nosed over.

## Other investigations on N6636Q (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 FTW95LA317](https://openairdocs.org/ntsb/FTW95LA317), Jul 27, 1995: Grumman G-164A (N6636Q), Mccrory, AR, substantial damage. Probable cause: THE LOSS OF ENGINE POWER DUE TO A CRACKED CYLINDER. A FACTOR WAS THE LACK OF SUITABLE TERRAIN FOR THE FORCED LANDING.
- [NTSB FTW92DPG12](https://openairdocs.org/ntsb/FTW92DPG12), Aug 10, 1992: Grumman G-164A (N6636Q), Mc Crory, AR, substantial damage. Probable cause: THE PILOTS FAILURE TO MAINTAIN DIRECTIONAL CONTROL.

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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