Edgeley Municipal Airport
Aircraft Accident/Incident Report

Edgeley, North Dakota 58433
Saturday, August 13, 2011 13:30 CDT

NTSB Narrative Summary Released at Completion of Accident

The pilot reported that shortly after leveling off and making a power reduction for cruise flight, he noticed that a descent had developed. The pilot added one notch of flaps and dumped the chemical load using the emergency dump handle but the descent continued. He landed the airplane in a bean field. A postaccident examination of the airplane and engine did not reveal any anomalies, nor were any anomalies noted in the airplaneā€™s recent annual inspection. The temperature and dew point recorded at a nearby airport were in a range susceptible to the formation of carburetor ice at glide and cruise power settings. Carburetor icing usually results in engine roughness and a drop in manifold pressure. Since the pilot made no mention of engine roughness, a decrease in manifold pressure, and was able to increase manifold pressure during his attempts to arrest the descent, it is unlikely that the power loss was due to carburetor icing. The reason for the power loss could not be determined.

NTSB Probable Cause Narrative

The loss of engine power for reasons that could not be determined because postaccident examination of the airplane and engine did not reveal any anomalies that would have precluded normal operation.

Event Information

Type of Event Accident
Event Date 8/13/2011
Event Day of the Week Saturday
Time of Event 1330
Event Time Zone Central Daylight Time
Event City Edgeley
Event State NORTH DAKOTA
Event Country --
Zipcode of the event site 58433
Event Date Year 2011
Event Date Month 8
MidAir Collision Indicator No
On Ground Collision occurred ? No
Event Location Latitude 462055N
Event Location Longitude 0984405W
Event Location Airport Edgeley Municipal
Event Location Nearest Airport ID 51D
Indicates whether the acc/inc occurred off or on an airport Off Airport/Airstrip
Distance from airport in statute miles 1
Degrees magnetic from airport --
Airport Elevation 1601
Weather Briefing Completeness --
Investigator's weather source Weather Observation Facility
Time of the weather observation 1335 Central Daylight Time
Direction of event from weather observation facility (degrees) 90
Weather Observation Facility ID 2D5
Elevation of weather observation facility 1335
Distance of event from weather observation facility (units?) 29
Time Zone of the weather observation CDT
Lighting Conditions Day
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) 17
Wind Direction (degrees magnetic) --
Variable Wind Indicator --
Wind Speed (knots) --
Wind Velocity Indicator --
Wind Gust Indicator --
Wind Gust (knots) --
Altimeter Setting at event time (in. Hg) 30.1
Density Altitude (feet) --
Intensity of Precipitation --
METAR weather report 201108132055 METAR K2D5 132055Z AUTO 10SM SCT040 2
Event Highest Injury None
On Ground, Fatal Injuries --
On Ground, Minor Injuries --
On Ground, Serious Injuries --
Injury Total Fatal --
Injury Total Minor --
Injury Total None 1
Injury Total Serious --
Injury Total All --
Investigating Agency NTSB
NTSB Docket Number (internal use) 31513
NTSB Notification Source FAA
NTSB Notification Date --
NTSB Notification Time --
Fiche Number and/or location -used to find docket information --
Date of most recent change to record Aug 14 2013 2:12PM
User who most recently changed record johb
Basic weather conditions Visual Meteorological Cond
FAA District Office --

Aircraft Involved

Aircraft #1

Aircraft Registration Number N73071
NTSB Number CEN11LA598
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 AIR TRACTOR INC
Aircraft Model AT-301
Aircraft Series Identifier --
Aircraft Serial Number 301-0617
Certified Max Gross Weight --
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 Annual
Date of Last Inspection Apr 6 2011 12:00AM
Airframe hours since last inspection --
Airframe Hours --
ELT Installed No
ELT Activated No
ELT Aided Location of Event Site No
ELT Type --
Aircraft Owner Name SEMPER FI AVIATION LLC
Aircraft Owner Street Address 13633 LOST CAVE RD
Aircraft Owner City KEYSTONE
Aircraft Owner State SD
Aircraft Owner Country USA
Aircraft Owner Zipcode 57751-6620
Operator is an individual? No
Operator Name SEMPER FI AVIATION LLC
Operator Same as Owner? Yes
Operator Is Doing Business As --
Operator Address Same as Owner? Yes
Operator Street Address 13633 LOST CAVE RD
Operator City KEYSTONE
Operator State SD
Operator Country USA
Operator Zip code 57751-6620
Operator Code 2SEG
Owner has at least one certificate Yes - certificate holder
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 Yes
Departure Airport Code 51D
Departure City Edgeley
Departure State ND
Departure Country USA
Departure Time 1225
Departure Time Zone CDT
Destination Same as Local Flt dest & departure same, accident can occur anywhere
Destination Airport Code 51D
Destination City Edgeley
Destination State ND
Destination Country USA
Specific Phase of Flight --
Report sent to ICAO? --
Evacuation occurred --
Date of most recent change to record Jun 14 2013 12:52PM
User who most recently changed record brajo
Since inspection or accident --
Event Location Runway Number and Location 32
Runway Length 3600
Runway Width 60
Sight Seeing flight No
Air Medical Flight No
Medical Flight --