12E Airstrip Airport
Aircraft Accident/Incident Report

Ligurta, Arizona 85356
Tuesady, August 31, 2010 4:30 MST

NTSB Narrative Summary Released at Completion of Accident

According to the owner of the aerial application company, the single engine airplane was loaded with 430 gallons (approx 3440 lbs) of liquid insecticide for its mission. The airplane departed from a satellite airstrip about 0400 mountain standard time (MST), in order to spray an agricultural field located approximately 5 miles east of the airstrip. When the airplane failed to return to the airstrip at the expected time, the loader became concerned. He telephoned the owner, and the owner initiated a search for the airplane. About 0545, the wreckage was located, approximately 125 feet above, and 1/2 mile to the west of, the field being sprayed, on rocky, rising terrain. Examination by a Federal Aviation Administration (FAA) inspector revealed that airplane struck the terrain in a relatively level attitude, while on an approximate track of northwest, and came to rest facing southwest. The commercial pilot stated that he completed several passes on the field, and was maneuvering the airplane for another pass, when the wind shifted. The airplane was unable to out climb, and subsequently impacted, the terrain. The pilot sustained serious injuries. The pilot reported that he had about 28,500 total hours of flight experience, including 1,388 hours in the accident airplane make and model, and he had been conducting agricultural spraying in the area for the previous 4 months. When asked by the FAA inspector, the pilot stated that if he could change anything about the flight, he would have applied the agent on north-south tracks instead of east-west tracks, in order to provide more clearance from the rising terrain to the west. US Naval Observatory data indicated that local sunrise was about 0612 MST. The automated weather observation at an airport located approximately 20 miles west of the accident site included winds from 020 degrees at 3 knots; visibility 10 miles; clear skies; temperature 24 degrees C; and a dew point of 12 degrees C.

NTSB Probable Cause Narrative

The pilot's failure to maintain clearance from rising terrain. Contributing to the accident was the pilot's decision to orient the application tracks so that they did not provide the maximum possible clearance from the rising terrain, and, the predawn lighting conditions.

Event Information

Type of Event Accident
Event Date 8/31/2010
Event Day of the Week Tuesday
Time of Event 430
Event Time Zone Mountain Standard Time
Event City Ligurta
Event State ARIZONA
Event Country --
Zipcode of the event site 85356
Event Date Year 2010
Event Date Month 8
MidAir Collision Indicator No
On Ground Collision occurred ? No
Event Location Latitude 324419N
Event Location Longitude 1142056W
Event Location Airport 12E Airstrip
Event Location Nearest Airport ID --
Indicates whether the acc/inc occurred off or on an airport Off Airport/Airstrip
Distance from airport in statute miles 6
Degrees magnetic from airport --
Airport Elevation 200
Weather Briefing Completeness --
Investigator's weather source Weather Observation Facility
Time of the weather observation 455 Mountain Standard Time
Direction of event from weather observation facility (degrees) 270
Weather Observation Facility ID NYL
Elevation of weather observation facility 200
Distance of event from weather observation facility (units?) 20
Time Zone of the weather observation MST
Lighting Conditions Night
Lowest Ceiling Height --
Lowest Non-Ceiling Height --
Sky/Lowest/Cloud Conditions Clear
Sky Condition for Lowest Ceiling None
Visibility Runway Visual Range (Feet) --
Visibility Runway Visual Value (Statute Miles) --
Visibility (Statute Miles) 10
Air Temperature at event time (in degrees celsius) 24
Dew Point at event time (in degress fahrenheit) 12
Wind Direction (degrees magnetic) 20
Variable Wind Indicator Wind direction could be determined
Wind Speed (knots) 3
Wind Velocity Indicator --
Wind Gust Indicator Not Gusting
Wind Gust (knots) --
Altimeter Setting at event time (in. Hg) 29.82
Density Altitude (feet) --
Intensity of Precipitation --
METAR weather report --
Event Highest Injury Serious
On Ground, Fatal Injuries --
On Ground, Minor Injuries --
On Ground, Serious Injuries --
Injury Total Fatal --
Injury Total Minor --
Injury Total None --
Injury Total Serious 1
Injury Total All 1
Investigating Agency NTSB
NTSB Docket Number (internal use) 27731
NTSB Notification Source NTSB Comm Center
NTSB Notification Date --
NTSB Notification Time --
Fiche Number and/or location -used to find docket information --
Date of most recent change to record Nov 2 2010 4:06PM
User who most recently changed record coos
Basic weather conditions Visual Meteorological Cond
FAA District Office --

Aircraft Involved

Aircraft #1

Aircraft Registration Number N6125X
NTSB Number WPR10CA439
Missing Aircraft Indicator --
Federal Aviation Reg. Part Part 137: Agricultural
Type of Flight Plan filed None
Flight plan Was Activated? No
Damage Substantial
Aircraft Fire None
Aircraft Explosion None
Aircraft Manufacturer's Full Name AYRES
Aircraft Model S2R-G10
Aircraft Series Identifier --
Aircraft Serial Number G10-105
Certified Max Gross Weight 10000
Aircraft Category Airplane
Aircraft Registration Class --
Aircraft is a homebuilt? No
Flight Crew Seats --
Cabin Crew Seats --
Passenger Seats --
Total number of seats on the aircraft 1
Number of Engines 1
Fixed gear or retractable gear Fixed
Aircraft, Type of Last Inspection 100 Hour
Date of Last Inspection Aug 30 2010 12:00AM
Airframe hours since last inspection --
Airframe Hours 4970
ELT Installed No
ELT Activated No
ELT Aided Location of Event Site No
ELT Type --
Aircraft Owner Name Morris Equipment
Aircraft Owner Street Address --
Aircraft Owner City Yuma
Aircraft Owner State AZ
Aircraft Owner Country USA
Aircraft Owner Zipcode 85364
Operator is an individual? No
Operator Name Morris Equipment
Operator Same as Owner? Yes
Operator Is Doing Business As --
Operator Address Same as Owner? Yes
Operator Street Address --
Operator City Yuma
Operator State AZ
Operator Country USA
Operator Zip code 85364
Operator Code --
Owner has at least one certificate None
Other Operator of large aircraft? No
Certified for Part 133 or 137 Operation Agriculture
Operator Certificate Number --
Indicates whether an air carrier operation was scheduled or not --
Indicates Domestic or International Flight --
Operator carrying Pax/Cargo/Mail --
Type of Flying (Per_Bus / Primary) Aerial Application
Second Pilot on Board No
Departure Point Same as Event No
Departure Airport Code --
Departure City Yuma
Departure State AZ
Departure Country USA
Departure Time 400
Departure Time Zone MST
Destination Same as Local Flt dest & departure same, accident can occur anywhere
Destination Airport Code --
Destination City Yuma
Destination State AZ
Destination Country USA
Specific Phase of Flight --
Report sent to ICAO? --
Evacuation occurred --
Date of most recent change to record Nov 2 2010 4:06PM
User who most recently changed record coos
Since inspection or accident Last Inspection
Event Location Runway Number and Location N/A
Runway Length --
Runway Width --
Sight Seeing flight No
Air Medical Flight No
Medical Flight --