# NTSB MIA87LA233: Ayres S2R-600, N4002K, Leland, MS, August 26, 1987

- Type: NTSB accident investigation
- Classification: Accident · No injuries · Limited investigation · Final report
- Date: August 26, 1987, 18:45 local (23:45 UTC)
- Place: Leland, MS
- Coordinates: 33.400039, -90.88993 (estimated)
- Nearby events: https://openairdocs.org/map.md?lat=33.4000&lon=-90.8899&mi=10
- Phase of flight: [Enroute](https://openairdocs.org/ntsb-phases/400) (OpenAirDocs' grouping)
- Highest injury: No injuries
- Injuries: 1 uninjured
- Status: Completed, report October 7, 1988
- Report: Approved by Office Director
- NTSB case key (mKey): 31957
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=MIA87LA233
- NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/31957/pdf
- Page: https://openairdocs.org/ntsb/MIA87LA233

## Sequence of events

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

- Loss of engine power(partial) - mech failure/malf, cruise
  - engine assembly,cylinder - fatigue (cause)
  - engine assembly,cylinder - failure,total (cause)
- Forced landing, descent - emergency
- Hard landing, landing - flare/touchdown
  - landing gear,main gear - overload
  - landing gear,main gear - failure,total

## Analysis

WHILE IN CRUISE FLIGHT EN ROUTE TO A FIELD FOR AERIAL APPLICATION THE ENGINE LOST POWER WHEN THE NUMBER ONE CYLINDER CRACKED BETWEEN THE SPARK PLUG HOLES. WHILE MANEUVERING TO LAND AT A SOD AIRSTRIP ALTITUDE COULD NOT BE MAINTAINED AND THE LEFT SPRAY BOOM CONTACTED A SOY BEAN FIELD. CONTROL WAS LOST AND THE AIRCRAFT TOUCHED DOWN HARD ON THE RIGHT LANDING GEAR CAUSING IT TO COLLAPSE. THE PILOT ATTRIBUTED THE CRACK IN THE CYLINDER TO TIME IN SERVICE ON THE CYLINDER AND STATED THIS IS A COMMON OCCURRENCE.

## Aircraft

- Registration: N4002K (not matched to a registry record)
- Reported make and model: AYRES S2R-600
- Category: Airplane
- Serial number: 2459R
- Airframe hours: 4269
- Engines: P&W R-1340-AN1 600 horsepower reciprocating
- Damage: Substantial damage
- Flight: Aerial application, Part 137
- Operator: Clark Flying Service
- Registered owner: Clark Flying Service
- Airworthiness certificate: Special, Restricted (Special)
- Last inspection: Annual, December 24, 1986
- Airport: Prather Farms Airstrip, runway 18, 2,700 ×  ft, grass/turf

## Flight crew

As NTSB recorded them. NTSB leaves out names.

- Pilot; age 38; commercial; airplane ratings: multi-engine land, single-engine land; instrument ratings: airplane; medical: class 2, valid medical--w/ waivers/lim; seat: front; flight hours: 7,013 total, 4,818 in this make and model, 6,882 as pilot in command, 120 in the last 90 days, 4 in the last 24 hours

## Weather

- Conditions: Visual (VMC), Day
- Wind: 180° at 6 knots
- Visibility: 10 statute miles
- Lowest ceiling: none
- Temperature: 95 °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 19870826048369A](https://openairdocs.org/incident/19870826048369A), Aug 26, 1987: Ayres S2RRESTD, Leland, MS, Substantial damage. Engine lost power. Crash landed in a soybean field. Engine cylinder had cracked.

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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