CHI00LA257

NTSB accident investigation · Ayres S2R-600 · Bad Axe, MI · August 14, 2000

Accident · FatalLimited investigationFinal report
Date
August 14, 2000, 10:20 local (14:20 UTC)
Place
Bad Axe, MI
Injuries
1 fatal
Damage
Destroyed
Phase of flight
Maneuvering
Aircraft
N3103BAyres S2R-600
Weather
Visual (VMC) · Day
Status
Completed · report July 26, 2001
Report
Approved by Office Director
FAA report
20000814037149A
Case key
50002

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

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Probable cause

The inadvertent stall/spin encountered by the pilot. A factor was the low altitude.

Sequence of events

NTSB’s coding before 2008: each occurrence and phase of flight, and the causes and factors under it. The codes are defined in NTSB’s coding manual.

Loss of control - in flightManeuvering - aerial application
Stall/spin - inadvertentPilot in commandCause
Altitude - lowFactor
In flight collision with terrain/waterDescent - uncontrolled

Analysis

The airplane was performing an aerial application flight when it impacted the ground while making a turn at the end of a spray pass. Witnesses to the accident reported that they saw the aircraft making a turn at the end of northbound pass. One of the witnesses reported that during the turn, "...the left wing dropped, nose went down, and the aircraft spun to the left." A second witness reported that, "...in the middle of the turn about that the plane seemed to be turning a little to[o] sharp. He was flying north turning to the west when about halfway is when it dipped real bad and made about 3/4 of a revolution and came nose first into the ground." The witness also stated that he did not hear a difference in engine sound when the accident occurred. A third witness reported that the aircraft, "...turned right then left at about 2/3 of the way around the plane seemed to turn real sharp then turned over and spiraled to the ground. A fourth witness reported that the aircraft was, "...spraying from south to north, and was in the process of making a turn to his left and was starting to come out of the turn when the plane started to roll or spin down. I could hear the engine thru out the spraying process and the sound of the engine never seem[ed] to change thru out this period." A postaccident examination of the aircraft did not reveal any anomalies that could be associated with a preexisting condition.

Factual narrative

History of flight

On August 14, 2000, at 1020 eastern daylight time, an Ayers S2R-600, N3103B, piloted by a commercial pilot, was destroyed on impact with terrain while maneuvering near Bad Axe, Michigan. The 14 CFR Part 137 aerial application flight was not on a flight plan. Visual meteorological conditions prevailed at the time of the accident. The pilot, who was the sole occupant, was fatally injured. The local flight originated from the Huron County Memorial Airport, Bad Axe, Michigan, at about 1005.

Witnesses to the accident reported that they saw the aircraft performing an aerial application flight and was making a turn at the end of a northbound pass. One of the witnesses reported that during the turn, "...the left wing dropped, nose went down, and the aircraft spun to the left." A second witness reported that, "...in the middle of the turn about that the plane seemed to be turning a little to[o] sharp. He was flying north turning to the west when about halfway is when it dipped real bad and made about 3/4 of a revolution and came nose first into the ground." The witness also stated that he did not hear a difference in engine sound when the accident occurred. A third witness reported that the aircraft, "...turned right then left at about 2/3 of the way around the plane seemed to turn real sharp then turned over and spiraled to the ground. A fourth witness reported that the aircraft was, "...spraying from south to north, and was in the process of making a turn to his left and was starting to come out of the turn when the plane started to roll or spin down. I could hear the engine thru out the spraying process and the sound of the engine never seem[ed] to change thru out this period."

Personel information

The pilot, a 22-year-old male, was the holder of a commercial pilot certificate with ratings for single engine, multi-engine, and instrument privileges. He held a second-class medical certificate issued on March 21, 2000. Federal Aviation Administration records indicate that the pilot had accumulated 1,900 total flight hours as of the date of his medical certificate. The pilot's flight logbooks were not located during the investigation.

Aircraft information

The airplane was an Ayres model S2R-600, serial number 2583R. A Pratt and Whitney R1340 series engine originally powered the aircraft. In 1996, an Allied Signal TPE 331-1 turboprop engine was installed on the airframe in accordance with Supplemental Type Certificate SA01068AT.

According to the aircraft logbooks, the aircraft had accumulated 2,848 hours total time in service at the time of it's last annual inspection performed on January 14, 2000. According to the engine logbook, the engine had accumulated 849 hours since overhaul as of the date of the annual inspection.

A postaccident examination of the aircraft failed to reveal any anomalies that could be associated with a preexisting condition.

Meteorological information

A weather report taken at the Huron County Memorial Airport at 1021 edt listed the weather as: Ceiling 4,400 feet broken, 5,000 feet overcast; Visibility 10 statute miles; Temperature 71 degrees Fahrenheit; Dewpoint 63 degrees Fahrenheit; Winds 040 degrees magnetic at 6 knot; Altimeter setting 30.08 inches of mercury.

Medical and pathological information

An autopsy was performed at the Huron Memorial Hospital in Bad Axe, Michigan, on August 14, 2000. A Forensic Toxicology report showed that 6.52 ug/ml of Acetaminophen was detected in the pilots blood. Acetaminophen is a nonprescription medication used to treat mild pain or fever.

Aircraft

Registration
N3103B
Reported as
Ayres S2R-600
Category
Airplane
Serial number
2583R
Airframe hours
2,848
Engine
Allied Signal TPE 331-1, 665 horsepower, turbo prop
Damage
Destroyed
Flight
Aerial application · Part 137
Registered owner
Earl'S Spray Service, Inc.
Airworthiness certificate
Special, Restricted (Special)
Last inspection
Annual · January 14, 2000
Departed
BAX

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
22
Certificate
Commercial
Airplane ratings
Multi-engine land, Single-engine land
Instrument ratings
Airplane
Medical
Class 2, Valid Medical--no waivers/lim.
Seat
Center
Toxicology
Performed
Flight hours
1,900 total

Weather

Conditions
Visual (VMC) · Day
Wind
40° at 6 knots
Visibility
10 statute miles
Lowest ceiling
4,400 ft broken
Temperature
160 °F, dew point 145 °F
Altimeter
30.00 inHg
Observed at
BAX

FAA reports on this event · 1

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