Individually Owned: 150,657
Corporate Owned: 137,281
Cherokee Municipal Airport
Aircraft Accident/Incident Report
Cherokee, Iowa 51012
Sunday, August 25, 2002 10:00 CDT
NTSB Narrative Summary Released at Completion of Accident
The airplane contacted power lines during an aerial application flight. The pilot reported he was making a swath run along a set of power lines that ran north and south through the middle of a field when the airplane contacted another set of power lines that ran east and west along the north edge of the field. The top 10 inches of the vertical stabilizer and the rudder separated from the airplane. The pilot reported that when the rudder separated, the rudder pedals were "pulled tight against the hopper" which resulted in him having no rudder control. In addition, he stated that he only had "some" aileron control. The pilot reported that about one-half mile from the airport, he pulled the power back to 1,000 pounds of torque and the airplane began to bank to the right. He reported that he was unable to control the bank with the ailerons. According to the pilot, the airplane then banked to the left, the nose pitched up, and the airplane "rolled over on its back." He reported the nose then dropped and the airplane descended into the ground.
NTSB Probable Cause Narrative
The pilot failed to maintain clearance with the power lines resulting in the rudder separation and the subsequent loss of aircraft control. A factor associated with the accident was the power line that was contacted.
Event Information
| Type of Event | Accident |
| Event Date | 8/25/2002 |
| Event Day of the Week | Sunday |
| Time of Event | 1000 |
| Event Time Zone | Central Daylight Time |
| Event City | Cherokee |
| Event State | IOWA |
| Event Country | -- |
| Zipcode of the event site | 51012 |
| Event Date Year | 2002 |
| Event Date Month | 8 |
| MidAir Collision Indicator | No |
| On Ground Collision occurred ? | No |
| Event Location Latitude | 424353N |
| Event Location Longitude | 0953322W |
| Event Location Airport | Cherokee Municipal |
| Event Location Nearest Airport ID | CKP |
| Indicates whether the acc/inc occurred off or on an airport | Off Airport/Airstrip |
| Distance from airport in statute miles | -- |
| Degrees magnetic from airport | -- |
| Airport Elevation | 1219 |
| Weather Briefing Completeness | -- |
| Investigator's weather source | Weather Observation Facility |
| Time of the weather observation | 1005 Central Daylight Time |
| Direction of event from weather observation facility (degrees) | 120 |
| Weather Observation Facility ID | SLB |
| Elevation of weather observation facility | 1488 |
| Distance of event from weather observation facility (units?) | 17 |
| 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) | 23 |
| Dew Point at event time (in degress fahrenheit) | 17 |
| Wind Direction (degrees magnetic) | 290 |
| 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) | 30.13 |
| 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) | 13310 |
| NTSB Notification Source | FAA |
| NTSB Notification Date | Aug 25 2002 12:00AM |
| NTSB Notification Time | 1201 |
| Fiche Number and/or location -used to find docket information | DMS |
| Date of most recent change to record | May 13 2003 12:26PM |
| User who most recently changed record | NTSB\MONR |
| Basic weather conditions | Visual Meteorological Cond |
| FAA District Office | Des Moines, IA FSDO |
Aircraft Involved |
|
|---|---|
Aircraft #1 |
|
| Aircraft Registration Number | N9032K |
| NTSB Number | CHI02LA259 |
| 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 |
| Aircraft Model | AT-402A |
| Aircraft Series Identifier | -- |
| Aircraft Serial Number | 402B-1105 |
| Certified Max Gross Weight | 8600 |
| Aircraft Category | Airplane |
| Aircraft Registration Class | U.S. Registered/U.S. Soil |
| 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 10 2002 12:00AM |
| Airframe hours since last inspection | 119 |
| Airframe Hours | 758 |
| ELT Installed | No |
| ELT Activated | Unknown |
| ELT Aided Location of Event Site | Unknown |
| ELT Type | -- |
| Aircraft Owner Name | Jerome V. Bakke |
| Aircraft Owner Street Address | Rt 1 box 27 |
| Aircraft Owner City | Larimore |
| Aircraft Owner State | ND |
| Aircraft Owner Country | USA |
| Aircraft Owner Zipcode | 58251 |
| Operator is an individual? | No |
| Operator Name | Vance J. Bakke |
| Operator Same as Owner? | No |
| Operator Is Doing Business As | -- |
| Operator Address Same as Owner? | No |
| Operator Street Address | 717 Booth Avenue |
| Operator City | Larimore |
| Operator State | ND |
| Operator Country | USA |
| Operator Zip code | 58251 |
| Operator Code | LTPG |
| Owner has at least one certificate | -- |
| Other Operator of large aircraft? | -- |
| 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 | CKP |
| Departure City | Cherokee |
| Departure State | IA |
| Departure Country | USA |
| Departure Time | 830 |
| Departure Time Zone | CDT |
| Destination Same as Local Flt | dest & departure same, accident can occur anywhere |
| Destination Airport Code | CKP |
| Destination City | Cherokee |
| Destination State | IA |
| Destination Country | USA |
| Specific Phase of Flight | Maneuvering - aerial application |
| Report sent to ICAO? | No |
| Evacuation occurred | No |
| Date of most recent change to record | Mar 28 2003 9:30AM |
| User who most recently changed record | SULP |
| Since inspection or accident | -- |
| Event Location Runway Number and Location | -- |
| Runway Length | -- |
| Runway Width | -- |
| Sight Seeing flight | No |
| Air Medical Flight | No |
| Medical Flight | -- |