# NTSB ATL94LA154: Ayres S2R, N8914Q, Vienna, GA, August 11, 1994

- Type: NTSB accident investigation
- Classification: Accident · Minor injuries · Limited investigation · Final report
- Date: August 11, 1994, 10:30 local (14:30 UTC)
- Place: Vienna, GA
- Coordinates: 32.080917, -83.78926 (estimated)
- Nearby events: https://openairdocs.org/map.md?lat=32.0809&lon=-83.7893&mi=10
- Phase of flight: [Maneuvering](https://openairdocs.org/ntsb-phases/450) (OpenAirDocs' grouping)
- Highest injury: Minor injuries
- Injuries: 1 minor
- Status: Completed, report May 9, 1995
- Report: Approved by Office Director
- NTSB case key (mKey): 3431
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=ATL94LA154
- NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/3431/pdf
- Page: https://openairdocs.org/ntsb/ATL94LA154

## Probable cause

THE LOSS OF ENGINE POWER BECAUSE OF A FRACTURED CYLINDER.

## Sequence of events

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

- Loss of engine power(total) - mech failure/malf, maneuvering - aerial application
  - engine assembly,cylinder - fractured
- Forced landing, descent - emergency
- On ground/water collision with object, landing - roll
  - terrain condition - ditch
- On ground/water encounter with terrain/water, landing - roll

## Analysis

DURING AN AERIAL APPLICATION SWATH THE ENGINE QUIT. A FORCED LANDING WAS MADE WHICH RESULTED IN A COLLISION WITH A ROAD AND A DITCH. A POST ACCIDENT EXAMINATION OF THE ENGINE REVEALED THAT THE NUMBER ONE CYLINDER HAD FRACTURED. THERE WAS NO EVIDENCE OF OVER HEATING OF THE CYLINDER AND THE AIRCRAFT RECORDS INDICATED THAT THE ANNUAL INSPECTION HAD BEEN CONDUCTED.

## Factual narrative

On August 11, 1994, about 1000 eastern daylight time, an Ayers S2R, N8914Q, was substantially damaged following a collision with terrain during a forced landing near Vienna, Georgia. The commercial pilot received minor injuries in the accident. The aircraft was being operated under the provisions of 14 CFR Part 137 by A&C Ag Aviation, Incorporated of Unidilla, Georgia. Visual meteorological conditions existed at the time, and no flight plan had been filed for the local, aerial application flight. The flight departed Unadilla, Georgia about 0930.

The pilot stated that during an aerial application spray swath, the engine lost power. He executed a forced landing in a field. The aircraft rolled across a paved highway, and impacted the terrain on the opposite side of the highway from the original field.

An examination of the engine following the accident discovered a three inch by five inch "blow-out" in the number one cylinder. The inspector who examined the engine stated that there was no evidence of over heating or abuse, and that the aircraft records reflected adequate and timely inspections.

## Aircraft

- Registration: [N8914Q](https://openairdocs.org/deregistered/N8914Q-2005-05-20), registration cancelled 2005-05-20, S/N 2440R (OpenAirDocs)
- Reported make and model: Ayres S2R
- Registry model: [Ayres S-2R](https://openairdocs.org/model/ayres-s-2r) (registry code 0970101) (OpenAirDocs)
- Category: Airplane
- Serial number: 2440R
- Airframe hours: 6577
- Engines: WRIGHT R-1820-71 1200 horsepower reciprocating
- Damage: Substantial damage
- Flight: Aerial application, Part 137
- Registered owner: A & C Ag Aviation, Inc
- Airworthiness certificate: Special, Restricted (Special)
- Last inspection: Annual, March 15, 1994, 405 hours before
- Departed: NONE, UNIDILLA, GA
- Destination: NONE, GA

## Flight crew

As NTSB recorded them. NTSB leaves out names.

- Pilot; age 52; commercial; airplane ratings: multi-engine land, single-engine land; medical: class 2, valid medical--no waivers/lim.; seat: center

## Weather

- Conditions: Visual (VMC), Day
- Wind: calm
- Visibility: 10 statute miles
- Lowest ceiling: none
- Temperature: 82 °F, dew point 64 °F
- Altimeter: 30.00 inHg
- Observed at: MCN, 40 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 19940811032259A](https://openairdocs.org/incident/19940811032259A), Aug 11, 1994: Ayres S2RR1340REST, Vienna, GA, Substantial damage. Engine quit on swath run. On landing hit ditch. NR1 cylinder had fractured. No evidence of over heating.

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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