# NTSB MKC86LA161: Grumman G-164B, N6997K, Lewisville, AR, July 24, 1986

- Type: NTSB accident investigation
- Classification: Accident · Minor injuries · Limited investigation · Final report
- Date: July 24, 1986, 15:00 local (20:00 UTC)
- Place: Lewisville, AR
- Coordinates: 33.359981, -93.570541 (estimated)
- Nearby events: https://openairdocs.org/map.md?lat=33.3600&lon=-93.5705&mi=10
- Phase of flight: [Landing](https://openairdocs.org/ntsb-phases/550) (OpenAirDocs' grouping)
- Highest injury: Minor injuries
- Injuries: 1 minor
- Status: Completed
- Report: Approved by Office Director
- NTSB case key (mKey): 34223
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=MKC86LA161
- NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/34223/pdf
- Page: https://openairdocs.org/ntsb/MKC86LA161

## Sequence of events

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

- Nose over, landing - roll
  - terrain condition - soft (contributing factor)
  - terrain condition - wet (contributing factor)
  - terrain condition - rough/uneven (contributing factor)
  - in-flight planning/decision - inadequate, pilot in command (cause)
  - unsuitable terrain or takeoff/landing/taxi area - selected, pilot in command (cause)

## Analysis

THE PIC MADE A LANDING TO A RAIN SOAKED SOD RWY WHEN THE ACFT'S RIGHT MAIN GEAR FELL INTO A LARGE MUD HOLE DURING THE LANDING ROLL AND THE ACFT FLIPPED INVERTED. THE SUBSEQUENT FLIPPING ACTION SUBSTANTIALLY DAMAGED THE ACFT.

## Aircraft

- Registration: N6997K (not matched to a registry record)
- Reported make and model: GRUMMAN G-164B
- Category: Airplane
- Serial number: 534B
- Engines: P&W R1340 SERIES 600 horsepower reciprocating
- Damage: Substantial damage
- Flight: Aerial application, Part 137
- Operator: Hornbeck Fly Service,Inc.
- Airworthiness certificate: Special, Restricted (Special)
- Departed: LEWISVILLE, AR
- Airport: Private

## Flight crew

As NTSB recorded them. NTSB leaves out names.

- Pilot; age 33; commercial; airplane ratings: single-engine land; medical: class 2, valid medical--no waivers/lim.; flight hours: 7,000 total, 5,000 in this make and model, 300 in the last 90 days

## Weather

- Conditions: Visual (VMC), Day
- Wind: 200° at 8 knots
- Visibility: 5 statute miles
- Temperature: 97 °F, dew point 73 °F
- Altimeter: 30.00 inHg
- Observed at: TXK, 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 19860724036529A](https://openairdocs.org/incident/19860724036529A), Jul 24, 1986: Scwzer G164B, Lewisville, AR, Substantial damage. Aircraft flipped over after encountering a soft spot on a grass runway.

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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