CHI08CA212

NTSB accident investigation · Ayres S2R-T34 · Clinton, IL · July 24, 2008

Accident · No injuriesData collectionFinal report
Date
July 24, 2008, 11:00 local (16:00 UTC)
Place
Clinton, IL
Injuries
1 uninjured
Damage
Substantial damage
Phase of flight
Maneuvering
Aircraft
N357CAAyres S2R-T34
Defining event
Maneuvering-low-alt flying: Low altitude operation/event
Weather
Visual (VMC) · Day
Status
Completed · report September 26, 2008
Report
Approved by Office Director
FAA report
20080724843269A
Case key
68778

From the NTSB’s public API. By law, NTSB reports can’t be used as evidence in lawsuits over the accident.

On this page

Probable cause

The inadequate in-flight planning/decision making and the altitude/clearance not maintained by the pilot during the aerial application. A contributing factor was the guy wire.

Findings · 3

NTSB’s coded findings. Those marked are part of the probable cause; the rest are factors or other findings. Under each, the cases with the same finding.

Object/animal/substance: wireEnvironmental issues › Physical environment · Contributed to outcomeAyres S2R-T34: 6 casesAll aircraft: 588 casesProbable cause
Performance/control parameters: altitudeAircraft › Aircraft oper/perf/capability · Not attained/maintainedAyres S2R-T34: 4 casesAll aircraft: 1,310 casesProbable cause

Sequence of events

The events NTSB coded, in order, by phase of flight. The defining event is the one that best describes the accident. Under each, the cases with the same event anywhere in their sequence.

Analysis

The pilot was spraying an agricultural field in an east/west direction, but later changed to a north/south direction so as to avoid an agricultural airplane spraying an adjacent field. During the 15th pass over the field, the airplane struck a guy wire with its right wing tip that resulted in structural damage to its right wing. The pilot then flew back and landed the airplane without further incident at the airport where it was based. The pilot was uninjured. The pilot stated that he should have resurveyed the field after changing the direction of the passes over the field.

Factual narrative

The pilot was spraying an agricultural field in an east/west direction but later changed to a north/south direction so as to avoid an agricultural airplane spraying an adjacent field. During the 15th pass over the field, the airplane struck a guy wire with its right wing tip that resulted in structural damage to its right wing. The pilot then flew back and landed the airplane without further incident at the airport where it was based. The pilot was uninjured. The pilot stated that he should have resurveyed the field after changing the direction of the passes over the field.

Aircraft

Registration
N357CA
Reported as
Ayres S2R-T34
Category
Airplane
Serial number
6000
Engine
Pratt & Whitney PT6, turbo prop
Damage
Substantial damage
Flight
Aerial application · Part 137
Operator
Atlantic Ag Aviation
Registered owner
Craft Air Services, LLC
Airworthiness certificate
Special, Restricted (Special)
Departed
Clinton, IL
Destination
Clinton, IL

Matched to the registry by N-number and the event date; the registry’s history has gaps, so older matches can be wrong. Compare the reported make and model.

Flight crew

As NTSB recorded them. NTSB leaves out names.

Role
Pilot
Age
29
Certificate
Commercial
Airplane ratings
Single-engine land, Multi-engine land
Instrument ratings
Airplane
Medical
Class 2
Flight hours
1,093 total · 43 in this make and model · 106 in the last 90 days · 42 in the last 30 days

Weather

Conditions
Visual (VMC) · Day

FAA reports on this event · 1

The FAA’s own accident and incident reports, matched to the aircraft by N-number and date.

Other investigations on N357CA · 1

Matched to the same aircraft by N-number and date.