MKC89LA121

NTSB accident investigation · Ayres S2R-T34 · Snow Lake, AR · May 30, 1989

Accident · No injuriesLimited investigationFinal report
Date
May 29, 1989, 19:00 local (May 30, 1989, 00:00 UTC)
Place
Snow Lake, AR
Injuries
1 uninjured
Damage
Substantial damage
Phase of flight
Takeoff
Aircraft
N3092SAyres S2R-T34
Weather
Visual (VMC) · Day
Status
Completed · report May 22, 1990
Report
Approved by Office Director
FAA report
19890529014399A
Case key
34798

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 selection of unsuitable terrain to takeoff from by the pilot and the inadequate runway maintenance by airport personnel. Contributing to the accident was the hidden hole which the airplane contacted resulting in the pilot's inability to control the airplane.

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 - on ground/waterTakeoff - roll/run
Unsuitable terrain or takeoff/landing/taxi area - selectedPilot in commandCause
Terrain condition - hidden obstruction(s)Factor
Runway maintenance - inadequateAirport personnelCause
Directional control - not possiblePilot in commandFactor
On ground/water collision with objectTakeoff - roll/run
Object - poleFactor

Analysis

While attempting to takeoff for an aerial application operation, the pilot said he hit a water filled hole on the runway. The acft veered off the runway and struck a pole. Both wings and the empennage sustained substantial damage. The area had been deluged with heavy rains, and the hole that was struck was where a pole had been removed. The heavy rains caused the soil around the hole to sink in and enlarge the indentation.

Aircraft

Registration
N3092S
Reported as
Ayres S2R-T34
Category
Airplane
Serial number
T34-100DC
Airframe hours
678
Engine
P&W PT-6-34AG, 750 horsepower, turbo prop
Damage
Substantial damage
Flight
Aerial application · Part 137
Registered owner
Griffen, David B..
Airworthiness certificate
Special, Restricted (Special)
Last inspection
Annual · April 29, 1989 · 110 hours before
Departed
Snow Lake, AR
Airport
Snow Lake, runway 27, 3,000 × 150 ft, grass/turf

Flight crew

As NTSB recorded them. NTSB leaves out names.

Role
Pilot
Age
55
Certificates
Commercial, Flight instructor
Airplane ratings
Multi-engine land, Single-engine land
Instrument ratings
Airplane
Medical
Class 2, Valid Medical--w/ waivers/lim
Seat
Left
Flight hours
20,000 total · 2,500 in this make and model · 19,800 as pilot in command · 250 in the last 90 days · 150 in the last 30 days · 8 in the last 24 hours

Weather

Conditions
Visual (VMC) · Day
Wind
180° at 10 knots
Visibility
10 statute miles
Lowest ceiling
None
Temperature
84 °F, dew point 64 °F

FAA reports on this event · 1

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