# NTSB MKC90LA079: Rockwell S-2R, N4183X, Des Arc, AR, April 3, 1990

- Type: NTSB accident investigation
- Classification: Accident · No injuries · Limited investigation · Final report
- Date: April 3, 1990, 15:00 local (20:00 UTC)
- Place: Des Arc, AR
- Coordinates: 34.969299, -91.50077 (estimated)
- Nearby events: https://openairdocs.org/map.md?lat=34.9693&lon=-91.5008&mi=10
- Phase of flight: [Takeoff](https://openairdocs.org/ntsb-phases/300) (OpenAirDocs' grouping)
- Highest injury: No injuries
- Injuries: 1 uninjured
- Status: Completed, report March 5, 1993
- Report: Approved by Office Director
- NTSB case key (mKey): 34955
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=MKC90LA079
- NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/34955/pdf
- Page: https://openairdocs.org/ntsb/MKC90LA079

## Probable cause

FAILURE OF THE ENGINE FUEL PUMP.

## Sequence of events

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

- Loss of engine power, takeoff - roll/run
  - fuel system,pump - failure,total (cause)
- On ground/water encounter with terrain/water, takeoff - aborted
  - terrain condition - ditch (contributing factor)

## Analysis

THE PLT RPRTD THAT DRG THE TAKEOFF ROLL FOR AN AERIAL APPLICATION OPN, THERE WAS A LOSS OF ENG POWER.  BEFORE STOPPING, THE ACFT COLLIDED WITH A DITCH, TEARING OFF THE TAIL & SUSTAINING ADDITIONAL SUBSTANTIAL DAMAGE.  A POST-ACDNT INVESTIGATION REVEALED THE ENG FUEL PUMP HAD FAILED.

## Aircraft

- Registration: [N4183X](https://openairdocs.org/aircraft/N4183X), registered now, S/N 1944R, built 1974 (OpenAirDocs)
- Reported make and model: Rockwell S-2R
- 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: 1944R
- Airframe hours: 6171
- Engines: P&W R-1340-AN1 600 horsepower reciprocating
- Damage: Substantial damage
- Flight: Aerial application, Part 137
- Registered owner: Bell'S Ag Service, Inc.
- Airworthiness certificate: Special, Restricted (Special)
- Last inspection: Annual, February 6, 1990, 71 hours before
- Departed: NONE, DES ARC, AR
- Airport: runway 18, 2,680 × 75 ft, grass/turf

## Flight crew

As NTSB recorded them. NTSB leaves out names.

- Pilot; age 46; commercial; airplane ratings: multi-engine land, single-engine land; instrument ratings: airplane; medical: class 2, valid medical--no waivers/lim.; seat: left; flight hours: 15,000 total, 5,000 in this make and model, 14,500 as pilot in command, 90 in the last 90 days, 90 in the last 30 days

## Weather

- Conditions: Visual (VMC), Day
- Wind: 290° at 8 knots
- Visibility: 25 statute miles
- Lowest ceiling: none
- Temperature: 64 °F, dew point 30 °F
- Altimeter: 30.00 inHg
- Observed at: LIT, 30 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 19900403007469A](https://openairdocs.org/incident/19900403007469A), Apr 3, 1990: Ayres S2RR3SRESTD, Des Arc, AR, Substantial damage. Engine lost power on liftoff. Landed. Ran off end dirt runway into a ditch. Fuel pump had failed.

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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