# NTSB FTW83LA402: Grumman G-164B, N6714K, North Lacassine, LA, August 27, 1983

- Type: NTSB accident investigation
- Classification: Accident · No injuries · Limited investigation · Final report
- Date: August 27, 1983, 08:00 local (13:00 UTC)
- Place: North Lacassine, LA
- Coordinates: 30.230672, -93.009445 (estimated)
- Nearby events: https://openairdocs.org/map.md?lat=30.2307&lon=-93.0094&mi=10
- Phase of flight: [Landing](https://openairdocs.org/ntsb-phases/550) (OpenAirDocs' grouping)
- Highest injury: No injuries
- Injuries: 1 uninjured
- Status: Completed
- Report: Approved by Office Director
- NTSB case key (mKey): 21033
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=FTW83LA402
- NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/21033/pdf
- Page: https://openairdocs.org/ntsb/FTW83LA402

## 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
  - terrain condition - high vegetation (contributing factor)
  - clearance - inadequate, pilot in command (cause)
- Loss of control - on ground/water, landing - roll
  - airport facilities,runway/landing area condition - wet (contributing factor)
  - directional control - not possible, pilot in command (contributing factor)
  - ground loop/swerve - uncontrolled, pilot in command (contributing factor)
- On ground/water encounter with terrain/water, landing - roll
  - terrain condition - ditch (contributing factor)
- Gear collapsed, landing - roll
  - landing gear - overload

## Analysis

THE PLT REPORTED THAT DURING THE LANDING, THE LEFT WING STRUCK TALL GRASS AT THE SIDE OF THE STRIP & THE ACFT SWERVED TO THE LEFT. HE TRIED TO CORRECT THE SITUATION BY APPLYING RIGHT BRAKING ACTION, BUT HIS BRAKING WAS INEFFECTIVE ON WET GRASS. SUBSEQUENTLY, THE ACFT GROUND LOOPED & SKIDDED INTO A DITCH WHERE THE GEAR COLLAPSED.

## Aircraft

- Registration: [N6714K](https://openairdocs.org/aircraft/N6714K), registered now, S/N 433B, 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: [Pratt & Whitney R1340 series](https://openairdocs.org/engine/pratt-whitney-r1340-series) (registry code 52016, reciprocating) (OpenAirDocs)
- Category: Airplane
- Serial number: 433B
- Airframe hours: 2055
- Engines: P&W R-1340 1340 horsepower reciprocating
- Damage: Substantial damage
- Flight: Positioning, Part 91
- Registered owner: O'Brien Flying Service
- Airworthiness certificate: Standard, Utility
- Last inspection: Annual, March 1, 1983
- Departed: IOWA, LA
- Airport: La Mott, runway 27, 1,400 ×  ft, grass/turf

## Flight crew

As NTSB recorded them. NTSB leaves out names.

- Pilot; age 32; commercial; airplane ratings: single-engine land; medical: class 2, valid medical--no waivers/lim.; seat: front; flight hours: 9,000 total, 6,500 in this make and model, 150 in the last 90 days, 6 in the last 24 hours

## Weather

- Conditions: Visual (VMC), Day
- Wind: 20° at 6 knots
- Visibility: 5 statute miles
- Lowest ceiling: 25,000 ft broken
- Temperature: 79 °F, dew point 73 °F
- Altimeter: 30.00 inHg

## 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 19830827044539A](https://openairdocs.org/incident/19830827044539A), Aug 27, 1983: Scwzer G164B, N Lacassine, LA, Substantial damage. Wing caught on high vegetation during landing causing aircraft to veer into ditch.

## Other investigations on N6714K (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 FTW90DRD04](https://openairdocs.org/ntsb/FTW90DRD04), Apr 3, 1990: Grumman G-164B (N6714K), Fenton, LA, destroyed. Probable cause: FAILURE OF THE ELEVATOR CONTROL ROD END BEARING.
- [NTSB FTW79DRA12](https://openairdocs.org/ntsb/FTW79DRA12), Mar 17, 1979: Grumman G-164B (N6714K), Rosharon, TX, substantial damage

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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