# NTSB FTW83LA277: Ayres S2R-1820, N4025P, Ville Platte, LA, June 14, 1983

- Type: NTSB accident investigation
- Classification: Accident · No injuries · Limited investigation · Final report
- Date: June 14, 1983, 07:10 local (12:10 UTC)
- Place: Ville Platte, LA
- Coordinates: 30.690391, -92.279296 (estimated)
- Nearby events: https://openairdocs.org/map.md?lat=30.6904&lon=-92.2793&mi=10
- Phase of flight: [Takeoff](https://openairdocs.org/ntsb-phases/300) (OpenAirDocs' grouping)
- Highest injury: No injuries
- Injuries: 1 uninjured
- Status: Completed
- Report: Approved by Office Director
- NTSB case key (mKey): 20931
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=FTW83LA277
- NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/20931/pdf
- Page: https://openairdocs.org/ntsb/FTW83LA277

## Sequence of events

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

- Loss of engine power(partial) - nonmechanical, takeoff - roll/run
  - fluid,fuel - water (cause)
  - aircraft preflight - inadequate, pilot in command (cause)
  - load jettison - performed, pilot in command (contributing factor)
- On ground/water encounter with terrain/water, takeoff - roll/run
  - terrain condition - dirt bank/rising embankment (contributing factor)

## Analysis

THE ACFT COLLIDED WITH A DIRT LEVEE DURING TAKEOFF AFTER AN ENGINE MALFUNCTION. ACCORDING TO THE PLT HE EXPERIENCED A POWER FAILURE AT LIFTOFF. HE DUMPED HIS SPRAY LOAD AND APPLIED BRAKES. THE ENGINE REGAINED PARTIAL POWER AND FAILED AGAIN. AT ABOUT 60 MPH AND 300 FT OFF THE DEPARTURE END OF THE RWY THE ACFT HIT A 2 FT HIGH LEVEL. POST ACCIDENT ENGINE DISASSMBLY REVEALED NO DIFFICULTIES TO CAUSE A POWER LOSS OR ENGINE FAILURE. LATER INSPECTION OF THE CARBURETOR REVEALED A SMALL AMOUNT OF WATER IN THE IDLE SECTION. IT WAS NOT POSSIBLE TO DETERMINE IF SUFFICIENT WATER WAS INGESTED TO CAUSE ENGINE FAILURE OR TO SIMPLY RESULT IN A LEANER THAN NORMAL FUEL MIXTURE.

## Aircraft

- Registration: [N4025P](https://openairdocs.org/aircraft/N4025P), registered now, S/N R1820-018DC, built 1981 (OpenAirDocs)
- Reported make and model: AYRES S2R-1820
- Registry model: [Ayres S2R-R1820](https://openairdocs.org/model/ayres-s2r-r1820) (registry code 0970215) (OpenAirDocs)
- Registry engine: [Wright R-1820 series](https://openairdocs.org/engine/wright-r-1820-series) (registry code 67020, reciprocating) (OpenAirDocs)
- Category: Airplane
- Serial number: R1820-018DC
- Airframe hours: 688
- Engines: WRIGHT R1820 1200 horsepower reciprocating
- Damage: Substantial damage
- Flight: Aerial application, Part 137
- Registered owner: Chataignier Flying Service
- Airworthiness certificate: Special, Restricted (Special)
- Last inspection: Unknown, March 1, 1983
- Airport: runway 18, 1,650 ×  ft, grass/turf

## Flight crew

As NTSB recorded them. NTSB leaves out names.

- Pilot; age 38; commercial; airplane ratings: single-engine land; medical: class 2, valid medical--no waivers/lim.; seat: front; flight hours: 7,500 total, 688 in this make and model, 7,000 as pilot in command, 206 in the last 90 days, 4 in the last 24 hours

## Weather

- Conditions: Visual (VMC), Day
- Wind: 135° at 2 knots
- Visibility: 5 statute miles
- Lowest ceiling: none
- Temperature: 70 °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 19830614025139A](https://openairdocs.org/incident/19830614025139A), Jun 14, 1983: Ayres S2RR1820, Ville Platte, LA, Substantial damage. Power failure occurred during takeoff causing collision with a 2 foot tall levee.

## Other investigations on N4025P (1)

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 FTW87LA114](https://openairdocs.org/ntsb/FTW87LA114), May 7, 1987: Ayres S2R-1820 (N4025P), Ville Platte, LA, 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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