# NTSB FTW83LA239: Grumman G-164A, N9805, Hayes, LA, May 17, 1983

- Type: NTSB accident investigation
- Classification: Accident · No injuries · Limited investigation · Final report
- Date: May 17, 1983, 06:30 local (11:30 UTC)
- Place: Hayes, LA
- Coordinates: 30.09995, -92.920837 (estimated)
- Nearby events: https://openairdocs.org/map.md?lat=30.0999&lon=-92.9208&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): 20905
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=FTW83LA239
- NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/20905/pdf
- Page: https://openairdocs.org/ntsb/FTW83LA239

## Sequence of events

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

- Airframe/component/system failure/malfunction, landing - roll
  - landing gear,normal brake system - leak (cause)
  - landing gear,normal brake system - failure,partial (cause)
  - directional control - not possible, pilot in command (cause)
- On ground/water encounter with terrain/water, landing - roll
  - terrain condition - dirt bank/rising embankment (contributing factor)
- Nose down, landing - roll

## Analysis

THE ACFT RAN OFF THE RT SIDE OF THE RWY AND COLLIDED WITH A DIRT EMBANKMENT DRNG LNDG ROLL. BRAKE FLUID WAS FOUND ON THE L MAIN GEAR FOLLOWING THE ACCD. INVESTIGATION REVEALED THE SOURCE OF THE LEAK TO BE A POPPED O-RING IN THE BRAKE ACTUATING CYLINDER.

## Aircraft

- Registration: [N9805](https://openairdocs.org/aircraft/N9805), registered now, S/N 1272, built 1974 (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: [Pratt & Whitney R1340 series](https://openairdocs.org/engine/pratt-whitney-r1340-series) (registry code 52016, reciprocating) (OpenAirDocs)
- Category: Airplane
- Serial number: 1272
- Airframe hours: 2000
- Engines: P&W R-1340-AN1 600 horsepower reciprocating
- Damage: Substantial damage
- Flight: Aerial application, Part 137
- Operator: Lake Air Service
- Registered owner: Donald Waguespack
- Airworthiness certificate: Special, Restricted (Special)
- Last inspection: 100 hour, March 4, 1983
- Departed: NONE, LAKE ARTHUR, LA
- Airport: None, runway 20, 2,100 × 50 ft, grass/turf

## Flight crew

As NTSB recorded them. NTSB leaves out names.

- Pilot; age 24; commercial; airplane ratings: single-engine land; medical: class 2, valid medical--no waivers/lim.; seat: front; flight hours: 889 total, 520 in this make and model, 790 as pilot in command, 100 in the last 90 days, 10 in the last 24 hours

## Weather

- Conditions: Visual (VMC), Day
- Wind: 60° at 10 knots
- Visibility: 5 statute miles
- Lowest ceiling: none
- Temperature: 61 °F

## 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 19830517074699A](https://openairdocs.org/incident/19830517074699A), May 17, 1983: Scwzer G164A, Hayes, LA, Substantial damage. Left brake failure on landing. Ran off the strip into an enbankment. A popped brake cylinder o ring responsible.

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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