# NTSB MKC89DPG04: Rockwell S-2R, N4943X, Moscow, AR, August 6, 1989

- Type: NTSB accident investigation
- Classification: Accident · Serious injuries · Final report
- Date: August 6, 1989, 10:15 local (16:15 UTC)
- Place: Moscow, AR
- Coordinates: 34.150375, -91.790618 (estimated)
- Nearby events: https://openairdocs.org/map.md?lat=34.1504&lon=-91.7906&mi=10
- Phase of flight: [Maneuvering](https://openairdocs.org/ntsb-phases/450) (OpenAirDocs' grouping)
- Highest injury: Serious injuries
- Injuries: 1 serious
- Status: Completed, report June 18, 1990
- Report: Approved by Office Director
- NTSB case key (mKey): 34662
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=MKC89DPG04
- NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/34662/pdf
- Page: https://openairdocs.org/ntsb/MKC89DPG04

## Probable cause

INADEQUATE VISUAL LOOKOUT BY THE PILOT. THE GUY WIRE WAS A CONTRIBUTING FACTOR.

## Sequence of events

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

- In flight collision with object, maneuvering - aerial application
  - object - guy wire (contributing factor)
  - visual lookout - inadequate, pilot in command (cause)
- In flight collision with terrain/water, descent - uncontrolled

## Analysis

THE PLT STATED THAT AS HE WAS MAKING PASSES FOR AERIAL APPLICATION, THE ACFT HIT AN UNOBSERVED GUY WIRE WHICH EXTENDED FROM A POWER LINE POLE. THE ACFT THEN SPUN AROUND & CRASHED IN A SOYBEAN FIELD. AFTER THE PLT CRAWLED FROM THE ACFT, IT BURNED & WAS DESTROYED.

## Aircraft

- Registration: [N4943X](https://openairdocs.org/deregistered/N4943X-1996-05-13), registration cancelled 1996-05-13, S/N 5004R (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)
- Category: Airplane
- Serial number: 5004R
- Airframe hours: 2663
- Engines: P&W R-1340-AN1 600 horsepower reciprocating
- Damage: Destroyed
- Fire: On-Ground
- Flight: Aerial application, Part 137
- Operator: Dirty Bird Inc., doing business as Dirty Bird Inc.
- Registered owner: Dirty Bird Inc
- Airworthiness certificate: Special, Restricted (Special)
- Last inspection: Annual, May 25, 1989, 318 hours before
- Airport: NONE

## Flight crew

As NTSB recorded them. NTSB leaves out names.

- Pilot; age 59; flight instructor, commercial; airplane ratings: single-engine land, multi-engine land; instrument ratings: airplane; medical: class 2, valid medical--w/ waivers/lim; seat: front; flight hours: 32,810 total, 10,000 in this make and model, 32,674 as pilot in command, 275 in the last 90 days, 92 in the last 30 days, 5 in the last 24 hours

## Weather

- Conditions: Visual (VMC), Day
- Wind: 280° at 8 knots
- Visibility: 7 statute miles
- Lowest ceiling: 4,000 ft broken
- Temperature: 84 °F, dew point 72 °F
- Altimeter: 29.00 inHg
- Observed at: PBF, 10 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 19890806027379A](https://openairdocs.org/incident/19890806027379A), Aug 6, 1989: Ayres S2RR1340REST, Moscow, AR, Destroyed. Struck a powerline guy wire,crashed and burned during an aerial spray operation.

## Other investigations on N4943X (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 MKC87LA115](https://openairdocs.org/ntsb/MKC87LA115), Jun 2, 1987: Ayres S2R600 (N4943X), Lepanto, AR, 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.

---
OpenAirDocs.org is an independent research project of [Contrail Labs](https://contraillabs.com/). It is not affiliated with the FAA or the NTSB. Source documents are U.S. government works in the public domain.