WPR12CA026

NTSB accident investigation · Ayres S2R-600 · Kahlotus, WA · November 2, 2011

Accident · Serious injuriesData collectionFinal report
Date
November 2, 2011, 12:50 local (19:50 UTC)
Place
Kahlotus, WA
Injuries
1 serious
Damage
Substantial damage
Phase of flight
Maneuvering
Aircraft
N1206SAyres S2R-600
Defining event
Maneuvering: Controlled flight into terr/obj (CFIT)
Weather
Visual (VMC) · Day
Status
Completed · report January 18, 2012
Report
Approved by Office Director
NTSB office
Western Pacific Region
Parties
Federal Aviation Administration
FAA report
20111102025549A
Case key
82227

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 pilot’s failure to maintain clearance from the ground due to his distraction with programming a global positioning system receiver.

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.

Terrain: mountainous/hilly terrainEnvironmental issues › Physical environment · Awareness of conditionAyres S2R-600: 1 caseAll aircraft: 329 casesProbable cause
Personnel issuesPersonnel issues › Task performance · PilotAyres S2R-600: 1 caseAll aircraft: 137 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 conducting an aerial application flight; he had just completed an application and was proceeding to another nearby field. He diverted his attention to reprogram the cockpit global positioning system (GPS) receiver and failed to retrim the airplane with nose-up trim. While the pilot was reprogramming the GPS receiver, the airplane entered a shallow descent and impacted the top of a small hill.

Factual narrative

The purpose of the flight was agricultural aerial application. The pilot pulled off a field to proceed to the next field 3 miles away. He diverted his attention to reprogram the cockpit GPS (Global Positioning System), and failed to retrim the airplane with nose up trim. While the pilot was reprograming the GPS the airplane entered a shallow descent and impacted the top of a small hill.

Aircraft

Registration
N1206S
Reported as
Ayres S2R-600
Category
Airplane
Serial number
2470R
Airframe hours
4,491
Engine
Garrett Type 331-252M, 840 horsepower, turbo prop
Damage
Substantial damage
Flight
Aerial application · Part 137
Operator
Faunce Aviation LLC
Registered owner
Faunce Aviation LLC
Airworthiness certificate
Special, Restricted (Special)
Last inspection
Annual · March 23, 2011
Departed
Kahlotus, WA
Destination
Kahlotus, WA

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
59
Injuries
Serious
Certificate
Commercial
Airplane ratings
Single-engine land
Medical
Class 2, With waivers/limitations
Last flight review
April 10, 2011
Seat
Center
Flight hours
22,000 total · 11,000 in this make and model · 350 in the last 90 days · 50 in the last 30 days · 7 in the last 24 hours

Weather

Conditions
Visual (VMC) · Day
Wind
Calm
Visibility
10 statute miles
Lowest ceiling
None

Docket · 2

The files NTSB released with the investigation on December 7, 2011, on NTSB’s docket system: statements, records, photos and specialists’ reports. 3.3 MB in all.

FAA reports on this event · 1

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