# NTSB MKC88LA131: Rockwell S2R, N8441V, Swifton, AR, July 18, 1988

- Type: NTSB accident investigation
- Classification: Accident · No injuries · Limited investigation · Final report
- Date: July 18, 1988, 12:30 local (17:30 UTC)
- Place: Swifton, AR
- Coordinates: 35.820411, -91.120628 (estimated)
- Nearby events: https://openairdocs.org/map.md?lat=35.8204&lon=-91.1206&mi=10
- Phase of flight: [Maneuvering](https://openairdocs.org/ntsb-phases/450) (OpenAirDocs' grouping)
- Highest injury: No injuries
- Injuries: 1 uninjured
- Status: Completed, report November 7, 1989
- Report: Approved by Office Director
- NTSB case key (mKey): 34606
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=MKC88LA131
- NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/34606/pdf
- Page: https://openairdocs.org/ntsb/MKC88LA131

## Sequence of events

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

- Loss of engine power, maneuvering - aerial application
  - fuel system,carburetor float - loose (contributing factor)
  - fuel system,carburetor float - disintegrated (cause)
  - fuel system - contamination (cause)
  - maintenance,inspection - inadequate, company maintenance personnel (cause)
- Forced landing, descent - emergency
- On ground/water encounter with terrain/water, landing - roll
  - terrain condition - rough/uneven (contributing factor)
  - terrain condition - soft (contributing factor)

## Analysis

THE PIC WAS CONDUCTING AG-SPRAY MANEUVERS DISPENSING LIQUID FERTILIZER TO RICE. DURING A PROCEDURE TURN TO RETURN TO THE FIELD THE ENG QUIT. THE PIC CHOSE AN OPEN FIELD ABT 60 DEGREES TO HIS RT TO LAND THE AIRCRAFT. THE FIELD WAS WET, SOFT AND ROUGH. THE ACFT TOUCHED DOWN, ROLLED A SHORT DISTANCE AND FLIPPED INVERTED. ENG FAILURE WAS LINKED TO A DETERIORATING CARBURETOR FLOAT SEAT, WHICH WAS ALSO CONTAMINATING THE FUEL SYSTEM WITH METALLIC DEBRIS. THE PIC WAS USING A MIXTURE OF AUTOMOTIVE FUEL TO OPERATE HIS AIRCRAFT.

## Aircraft

- Registration: [N8441V](https://openairdocs.org/aircraft/N8441V), registered now, S/N 2201R, built 1976 (OpenAirDocs)
- Reported make and model: ROCKWELL S2R
- Registry model: [Rockwell International S-2R](https://openairdocs.org/model/rockwell-international-s-2r) (registry code 7630202) (OpenAirDocs)
- Registry engine: [Pratt & Whitney R1340 series](https://openairdocs.org/engine/pratt-whitney-r1340-series) (registry code 52016, reciprocating) (OpenAirDocs)
- Category: Airplane
- Serial number: 2201R
- Airframe hours: 2319
- Engines: P&W R-1340-AN1 600 horsepower reciprocating
- Damage: Substantial damage
- Flight: Aerial application, Part 137
- Operator: Dan'S Flying Service
- Registered owner: Danny Whited
- Airworthiness certificate: Special, Restricted (Special)
- Last inspection: Annual, April 20, 1988, 229 hours before

## Flight crew

As NTSB recorded them. NTSB leaves out names.

- Pilot; age 36; commercial; airplane ratings: single-engine land; instrument ratings: airplane; medical: class 2, valid medical--w/ waivers/lim; seat: center; flight hours: 5,000 total, 1,000 in this make and model, 4,900 as pilot in command, 200 in the last 90 days, 100 in the last 30 days, 8 in the last 24 hours

## Weather

- Conditions: Visual (VMC), Day
- Wind: 230° at 7 knots
- Visibility: 7 statute miles
- Lowest ceiling: 4,000 ft broken
- Temperature: 90 °F, dew point 48 °F
- Altimeter: 29.00 inHg
- Observed at: JBR, 15 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 19880718028459A](https://openairdocs.org/incident/19880718028459A), Jul 18, 1988: Ayres S2RR1340REST, Swifton, AR, Substantial damage. Engine quit on a spray run. Nosed over in a muddy field. Carburetor float seat came loose. Pieces contaminated fuel

## Other investigations on N8441V (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 FTW92DPG10](https://openairdocs.org/ntsb/FTW92DPG10), Jul 24, 1992: Rockwell S2R-R3S (N8441V), Minturn, AR, substantial damage. Probable cause: THE LOSS OF ENGINE POWER AND THE ENCOUNTER WITH UNSUITABLE TERRAIN DURING THE FORCED LANDING.

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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