Wednesday, December 19, 2018

Piper PA-12 Super Cruiser, N3619M: Accident occurred November 29, 2018 at Skagit Regional Airport (KBVS), Burlington, Washington

Additional Participating Entity:
Federal Aviation Administration / Flight Standards District Office; Seattle, Washington

Aviation Accident Factual Report - National Transportation Safety Board: https://app.ntsb.gov/pdf

Investigation Docket - National Transportation Safety Board: https://dms.ntsb.gov/pubdms

https://registry.faa.gov/N3619M

Location: Burlington, WA
Accident Number: GAA19CA080
Date & Time: 11/29/2018, 1200 PST
Registration: N3619M
Aircraft: Piper PA 12
Aircraft Damage: Substantial
Defining Event: Loss of control on ground
Injuries: 1 None
Flight Conducted Under: Part 91: General Aviation - Personal 

The pilot reported that, while landing with a crosswind, after touchdown, the tailwheel-equipped airplane drifted left. He then applied opposite rudder and brake, but the airplane continued left, exited the runway, and struck a runway sign.

The airplane sustained substantial damage to the fuselage and empennage.

The pilot reported that there were no preaccident mechanical failures or malfunctions with the airplane that would have precluded normal operation.

The automated weather observation system at the accident airport reported that, about the time of the accident, the wind was from 320° at 8 knots. The pilot landed on runway 29. 

Pilot Information

Certificate: Flight Instructor; Commercial
Age: 75, Male
Airplane Rating(s): Multi-engine Land; Single-engine Land
Seat Occupied: Front
Other Aircraft Rating(s): Helicopter
Restraint Used: 3-point
Instrument Rating(s): Airplane
Second Pilot Present: No
Instructor Rating(s): Airplane Multi-engine; Airplane Single-engine; Instrument Airplane
Toxicology Performed: No
Medical Certification: Class 2 With Waivers/Limitations
Last FAA Medical Exam: 03/21/2018
Occupational Pilot: No
Last Flight Review or Equivalent: 05/16/2018
Flight Time:  (Estimated) 1975 hours (Total, all aircraft), 22 hours (Total, this make and model), 1750 hours (Pilot In Command, all aircraft), 22 hours (Last 90 days, all aircraft), 0.5 hours (Last 30 days, all aircraft), 0.5 hours (Last 24 hours, all aircraft)

Aircraft and Owner/Operator Information

Aircraft Make: Piper
Registration: N3619M
Model/Series: PA 12 No Series
Aircraft Category: Airplane
Year of Manufacture: 1947
Amateur Built: No
Airworthiness Certificate: Normal
Serial Number: 12-2517
Landing Gear Type: Tailwheel
Seats: 3
Date/Type of Last Inspection: 11/05/2016, Annual
Certified Max Gross Wt.: 1750 lbs
Time Since Last Inspection:
Engines: 1 Reciprocating
Airframe Total Time:
Engine Manufacturer: Lycoming
ELT: Installed, not activated
Engine Model/Series: O-320-A2A
Registered Owner: On file
Rated Power: 150 hp
Operator: On file
Operating Certificate(s) Held: None

Meteorological Information and Flight Plan

Conditions at Accident Site: Visual Conditions
Condition of Light: Day
Observation Facility, Elevation: KBVS, 140 ft msl
Distance from Accident Site: 0 Nautical Miles
Observation Time: 1956 UTC
Direction from Accident Site: 136°
Lowest Cloud Condition: Few / 1200 ft agl
Visibility:  10 Miles
Lowest Ceiling: Broken / 6000 ft agl
Visibility (RVR):
Wind Speed/Gusts: 8 knots /
Turbulence Type Forecast/Actual: None / None
Wind Direction: 320°
Turbulence Severity Forecast/Actual: N/A / N/A
Altimeter Setting: 29.7 inches Hg
Temperature/Dew Point: 11°C / 7°C
Precipitation and Obscuration: No Obscuration; No Precipitation
Departure Point: Bellingham, WA (BLI)
Type of Flight Plan Filed: None
Destination: Burlington, WA (BVS)
Type of Clearance: None
Departure Time: 1130 PST
Type of Airspace: Class G

Airport Information

Airport: SKAGIT RGNL (BVS)
Runway Surface Type: Asphalt
Airport Elevation: 145 ft
Runway Surface Condition: Dry
Runway Used: 29
IFR Approach: None
Runway Length/Width: 5478 ft / 100 ft
VFR Approach/Landing: Full Stop; Traffic Pattern

Wreckage and Impact Information

Crew Injuries: 1 None
Aircraft Damage: Substantial
Passenger Injuries: N/A
Aircraft Fire: None 
Ground Injuries: N/A
Aircraft Explosion: None
Total Injuries: 1 None
Latitude, Longitude:  48.469444, -122.420556 (est)

Beech A36 Bonanza, N6650M: Accident occurred December 11, 2018 at Hartford Municipal Airport (KHXF), Washington County, Wisconsin

Hangar50 LLC

https://registry.faa.gov/N6650M


NTSB Identification: GAA19CA096
14 CFR Part 91: General Aviation
Accident occurred Tuesday, December 11, 2018 in Hartford, WI
Aircraft: Beech 36, registration: N6650M

NTSB investigators will use data provided by various entities, including, but not limited to, the Federal Aviation Administration and/or the operator, and will not travel in support of this investigation to prepare this aircraft accident report.

Diamond DA-20C-1 Eclipse, N346MA: Accident occurred December 19, 2018 near McCormick County Airport (S19), South Carolina and Incident occurred November 06, 2016 at Athens / Ben Epps Airport (KAHN), Clarke County, Georgia

Federal Aviation Administration / Flight Standards District Office; South Carolina

Landed in a field.


https://registry.faa.gov/N346MA

Date: 19-DEC-18
Time: 19:40:00Z
Regis#: N346MA
Aircraft Make: DIAMOND
Aircraft Model: DA20 C1
Event Type: ACCIDENT
Highest Injury: UNKNOWN
Aircraft Missing: No
Damage: SUBSTANTIAL
Activity: UNKNOWN
Flight Phase: LANDING (LDG)
Operation: 91
City: AUGUSTA
State: GEORGIA



MCCORMICK COUNTY, SC (WFXG) - A small plane has gone down in McCormick County. The plane went down in a small wooded area off the side of Hwy. 28 S near Georgia-Pacific Corporation.


According to the McCormick County Sheriff’s Office, the plane went down at around 2:30 p.m. 


Two people were inside and both escaped with no injuries. 


The pilot says they took off from the nearby McCormick County, headed to Newnan Coweta County Airport and experienced a mechanical failure not long after takeoff. He tried to get the plane back to the airport, but couldn’t make it. He tried to land the plane in a flat driveway next to the lumber yard, but didn’t make it, hitting the treeline instead.


The National Transportation Safety Board is taking over the scene and will begin their investigation Thursday morning.


Original article can be found here ➤ http://www.wfxg.com




MCCORMICK COUNTY, S.C. (WRDW/WAGT) -- According to officials, the small plane that crashed in McCormick County was en route to Newman, Georgia.

Shortly after takeoff, the plane developed mechanical issues. The pilot turned back to the airport but was unable to reach the runway in time.

The plane crashed on the Georgia Pacific Wood Mill property and was extremely damaged.

The two people on board were not severely injured but they are being treated by EMS.

According to the Federal Aviation Administration, the plane was a Diamond DA-20C-1 Eclipse.

The Federal Aviation Administration says they will complete an investigation.

Original article can be found here ➤ https://www.wrdw.com





McCORMICK COUNTY (WJBF) - Emergency crews responded to the scene of a small plane crash in McCormick County, Wednesday.

According to the EMA office, the plane came down around 2:30 p.m. with two people on board.

The prop plane crashed on Highway 28 near the wood yard of Georgia Pacific Corporation—no injuries were reported.

Investigators tell us the plane went down due to mechanical issues.


National Transportation Safety Board will investigate the scene on Thursday.


Original article can be found here ➤ https://www.wjbf.com


Federal Aviation Administration / Flight Standards District Office; Atlanta, Georgia

November 06, 2016: Aircraft on landing, nose wheel collapsed.

Date: 06-NOV-16
Time: 15:57:00Z
Regis#: N346MA
Aircraft Make: DIAMOND
Aircraft Model: DA20
Event Type: Incident
Highest Injury: None
Damage: Unknown
Flight Phase: LANDING (LDG)
City: ATHENS
State: Georgia

Cessna 172M, N12991: Incident occurred December 18, 2018 in Gaffney, Cherokee County, South Carolina

Federal Aviation Administration / Flight Standards District Office; South Carolina

Made a precautionary landing in a field.


United States Department of Agriculture
Forest Service Federal Excess Personal Property
South Carolina Forestry Commission

https://registry.faa.gov/N12991


Date: 18-DEC-18
Time: 21:00:00Z
Regis#: N12991
Aircraft Make: CESSNA
Aircraft Model: 172M
Event Type: INCIDENT
Highest Injury: NONE
Aircraft Missing: No
Damage: UNKNOWN
Activity: PUBLIC USE
Flight Phase: LANDING (LDG)
Operation: 91
Aircraft Operator: USDA FOREST SERVICE
City: GAFFNEY
State: SOUTH CAROLINA

Dassault Falcon 2000EX, N131A: Incident occurred December 18, 2018 near Addison Airport (KADS), Dallas County, Texas

Federal Aviation Administration / Flight Standards District Office; North Texas

Struck a bird.


Des Capital Holdings LLC


https://registry.faa.gov/N131A


Date: 19-DEC-18
Time: 00:50:00Z
Regis#: N131A
Aircraft Make: DASSAULT
Aircraft Model: FALCON 2000EX
Event Type: INCIDENT
Highest Injury: NONE
Aircraft Missing: No
Damage: UNKNOWN
Activity: UNKNOWN
Flight Phase: APPROACH (APR)
Operation: 91
City: DALLAS
State: TEXAS

Piper PA-28-140, N98334: Incident occurred December 18, 2018 in Fort Worth, Texas

Federal Aviation Administration / Flight Standards District Office; North Texas

Landed in a field.


https://registry.faa.gov/N98334


Date: 18-DEC-18
Time: 21:11:00Z
Regis#: N98334
Aircraft Make: PIPER
Aircraft Model: PA 28 140
Event Type: INCIDENT
Highest Injury: NONE
Aircraft Missing: No
Damage: MINOR
Activity: PERSONAL
Flight Phase: LANDING (LDG)
Operation: 91
City: FORT WORTH
State: TEXAS

Azalea Saberwing, N203SW: Fatal accident occurred December 18, 2018 near Cook County Airport (15J), Adel, Georgia

The National Transportation Safety Board traveled to the scene of this accident.

Additional Participating Entities:

Federal Aviation Administration / Flight Standards District Office; Atlanta, Georgia
Lycoming; Williamsport, Pennsylvania

Aviation Accident Preliminary Report - National Transportation Safety Board: https://app.ntsb.gov/pdf



https://registry.faa.gov/N203SW

Location: Adel, GA
Accident Number: ERA19FA068
Date & Time: 12/18/2018, 1500 EST
Registration: N203SW
Aircraft: Saberwing Saberwing
Injuries: 1 Fatal
Flight Conducted Under: Part 91: General Aviation - Personal 

On December 18, 2019, about 1500 eastern standard daylight time, an experimental amateur-built Saberwing, N203SW, was destroyed during an inflight breakup near Adel, Georgia. The private pilot was fatally injured. Visual meteorological conditions prevailed at the time and no flight plan was filed for the Title 14 Code of Federal Regulations Part 91 personal flight. The flight originated from Cook County Airport (15J), Adel, Georgia at 1100.

According to a witness the pilot was flying in the airport traffic pattern before departing the area. Another witness, located about 9 miles west of 15J, arrived home and saw airplane parts scattered in his yard. He called the local authorities and when they arrived, they confirmed the registration number on the vertical stabilizer belong to the accident airplane. No radio communications were received from the pilot prior to the accident.

The pilot, age 56, held a private pilot certificate with a rating for airplane single-engine land. On his most recent application for a Federal Aviation Administration (FAA) third-class medical certificate, dated November 30, 2019, he reported his flight experience included 1,100 total and 120 hours in last six months. The pilot held a third-class medical certificate with a limitation requiring the use of corrective lenses.

The experimental amateur-built airplane was completed in 2016, and was designated serial number 003. It was powered by a Lycoming XIO-360-MIB series 180-horsepower engine and equipped with a Sensenich propeller. Review of the airplane's maintenance records revealed the airplane's most recent condition inspection was completed on July 15, 2018. The recorded tachometer time was 101 hours. The tachometer was not located and the airframe hours at the time of the accident could not be determined.

At 1515, the recorded weather at Moultrie Municipal Airport (MGR), Moultrie, Georgia, located 14 miles west of the accident site, included wind from 210° at 3 kts, 10 statute miles visibility, and clear skies. The temperature was 18°C, the dew point was 2° C, and the altimeter setting was 30.07 inches of mercury.

The wreckage was scattered over a large swamp that included a heavily wooded area. The wreckage debris field was about 6,000 ft in length, oriented toward 343° true. The cockpit with the engine still attached to the engine mounts came to rest at the end of the debris path. At the beginning of the debris field, the vertical stabilizer was located split into 2 pieces, in the yard of the witness. The next part that was located was the rudder which was separated from the vertical stabilizer. The entire horizontal assembly was then located, with both elevators still attached. The left flap assembly was located next along the debris path left of the debris field. The right wing assembly was located on the right side of the debris path. The right wing assembly consisted of the aileron, flap and landing gear assembly. The wing was broken away from the fuselage at the wing root forward main spar. The entire aft spar was still attached to the right wing. The upper attachment fittings that connect the spar to the wing were broken. The fuselage was broken into two sections, the aft section which consisted of the entire empennage was located forward of the right wing. Forward of the empennage along the end of the debris path the forward cockpit was located. The engine remained attached to the motor mounts and attached to the firewall of the cockpit section. All three propeller blades were broken at the propeller hub. All of the propeller blades had scoring and impact marks throughout the span of the blades. The left wing was not located during the initial search.

The wreckage was recovered and retained for further examination.

Aircraft and Owner/Operator Information

Aircraft Make: Saberwing
Registration: N203SW
Model/Series: Saberwing
Aircraft Category: Airplane
Amateur Built: Yes
Operator: On file
Operating Certificate(s) Held: None

Meteorological Information and Flight Plan

Conditions at Accident Site: Visual Conditions
Condition of Light: Day
Observation Facility, Elevation: KMGR, 283 ft msl
Observation Time: 2015 UTC
Distance from Accident Site: 13 Nautical Miles
Temperature/Dew Point: 18°C / 2°C
Lowest Cloud Condition: Clear
Wind Speed/Gusts, Direction: 3 knots / , 210°
Lowest Ceiling: None
Visibility: 10 Miles
Altimeter Setting: 30.07 inches Hg
Type of Flight Plan Filed: None
Departure Point: Adel, GA (15J)
Destination: Adel, GA (15J) 

Wreckage and Impact Information


Crew Injuries: 1 Fatal
Aircraft Damage: Substantial
Passenger Injuries: N/A
Aircraft Fire: None
Ground Injuries: N/A
Aircraft Explosion: None
Total Injuries: 1 Fatal
Latitude, Longitude: 31.103611, -83.553056 (est)

Those who may have information that might be relevant to the National Transportation Safety Board investigation may contact them by email eyewitnessreport@ntsb.gov, and any friends and family who want to contact investigators about the accident should email assistance@ntsb.gov.



Larry Bothof

COOK COUNTY, Ga. (WALB) - Investigators in Cook County are still looking for answers after the body of 65-year-old Larry Bothof who was pulled from the wreckage of a small civilian plane earlier this week.  

We are told from representatives of the National Transportation Safety Board, or the NTSB, are still in the area, gathering parts, and continuing their investigation.

They are working alongside the Federal Aviation Administration to find out what exactly happened Tuesday that led to this crash.

We are also told that these agencies are requiring an in-depth examination from the Cook County coroner, about Buthof's death. 

The coroner shared that he does not have any information for release at this time.

Original article can be found here ➤ http://www.wtxl.com



COOK CO., GA (WALB) - The body of a pilot in a Cook County plane crash was found Wednesday morning, according to officials.

Larry Bothof, 56, of Colquitt County, was identified after his body was recovered at 11 a.m. Wednesday.

The body, initially found at 9:30 a.m., was found submerged in 7-8 feet of water, according to Brent Exum, Cook County Sheriff’s Office public information officer.

Valdosta Georgia Search and Rescue (GSAR) and Valdosta Sports assisted in recovering the body and the body was taken to the coroner.

The plane, a single engine fixed wing air raid, belonged to Bothof.

Officials found the plane has lost parts early Tuesday. 

A missing persons report was filed Berlin, which helped identify the pilot. 

The area where parts are being recovered is over a mile long, Exum said.

Most everything in the recovery area, Exum pointed out, is full of water up to 20 feet deep.

Another wreckage area was found Wednesday morning, Exum said.

The plane left Cook County Airport where it was housed, according to Exum.

The Federal Aviation Administration and the National Transportation Safety Board are working with law enforcement to find what they can in the investigation.

The investigation is wrapping up for the most part, Exum said.

COOK CO., GA (WALB) - Law enforcement agencies are investigating after a small civilian aircraft crashed in Cook County on Tuesday.

According to Public Information Officer Capt. Brent Exum with the Cook County Sheriff’s Office, Emergency 911 received a call from a resident on Arthur Tillman Road who said he found items on his property that appeared to be from a plane.

The sheriff’s office, Cook County Emergency Management, Georgia State Patrol, fire personnel and the Georgia Department of Natural Resources all responded to the scene.

Exum said the plane that crashed had left the Adel Airport earlier Tuesday with a single pilot on board.

The crash happened in a slough, completely covered in water from recent rains, explained Exum.

Exum said attempts to reach the aircraft and the pilot continue with the assistance of the GSP Aviation Unit, but they have so far been unsuccessful due to the terrain and light restrictions.

The Federal Aviation Administration has been contacted and is headed to the location, according to Exum. 

The sheriff’s office is requesting that residents avoid the location around Arthur Tillman and Pike Creek Road until further notice in order to allow rescue efforts to continue.

Original article can be found here ➤  http://www.wtxl.com


The command center near the scene of the crash.


COOK COUNTY, Ga. (WCTV) -- Authorities have confirmed that one person is dead following a plane crash in Cook County.

The Cook County Sheriff's Office says around 3:30 p.m. Tuesday, they received a call from a homeowner reporting that they'd found a piece of debris that appeared to be from a plane. During the call, the homeowner located another piece of the aircraft with a tail number on it, which was then matched to a missing persons report out of Berlin, Georgia.

The missing persons report was for the owner of the plane, 56-year-old Larry D. Bothos, of Colquitt County. Bothos was reported missing on Tuesday after he didn’t show up for an afternoon appointment.

Officials say Bothos was a frequent flyer at the Cook County airport and had a hangar there.

Authorities responded to the scene and confirmed that the wreckage was indeed that of Bothos' plane. The debris field spanned approximately 2 miles in a wooded area west of Adel.

Around 9:30 a.m. Wednesday, authorities located Bothos' body.

Authorities say Bothos was piloting the plane and was the only person aboard the Saberwing experimental aircraft when it went down in an area near Arthur Tillman Road.

Bothos' body has been taken to the Medical Examiner’s Office in Macon for an autopsy.

The Federal Aviation Administration and the National Transportation Safety Board are continuing to investigate the cause of the crash.

COOK COUNTY, Ga. (WCTV) -- The Federal Aviation Administration is investigating what caused a plane to crash in Cook County.

The FAA released the following statement on Wednesday:

"A Saberwing experimental aircraft crashed in a wooded area in Cook County, GA. Only the pilot was onboard. Local authorities will release the pilot's name and medical condition. The FAA will investigate and the National Transportation Safety Board will determine the probable cause of the accident."

It is not clear at this time exactly when the plane crashed.

We're hearing that the plane went down in a rural area west of Adel near Arthur Tillman Road, which has since been shut down to allow officials to investigate.

A command center is currently set up near the scene along Pike Creek Road between McConnell Bridge Road and Quillie Jones Road.

Multiple agencies are on the scene including the FAA, the Cook County Sheriff's Office, the Valdosta Police Department, Cook County Fire Rescue and Tift County Fire Rescue.

Original article can be found here ➤ https://www.wctv.tv

Tuesday, December 18, 2018

Mitsubishi MU-2B-40 Solitaire, owned by private individuals and operated by the pilot, N73MA: Fatal accident occurred September 23, 2017 near Ainsworth Regional Airport (KANW), Brown County, Nebraska

Dr. Robert George Cook

The National Transportation Safety Board traveled to the scene of this accident.

Additional Participating Entities:

Federal Aviation Administration / Flight Standards District Office; Lincoln, Nebraska
Mitsubishi Heavy Industries; Addison, Texas
Honeywell Aerospace; Phoenix, Arizona 
Honeywell Product Integrity; Olathe, Kansas
Hartzell Propeller; Piqua, Ohio

Aviation Accident Factual Report - National Transportation Safety Board: https://app.ntsb.gov/pdf

Investigation Docket - National Transportation Safety Board: https://dms.ntsb.gov/pubdms

http://registry.faa.gov/N73MA

Location: Ainsworth, NE
Accident Number: CEN17FA362
Date & Time: 09/23/2017, 1028 CDT
Registration: N73MA
Aircraft: MITSUBISHI MU 2B-40
Aircraft Damage: Destroyed
Defining Event: Loss of control in flight
Injuries: 1 Fatal
Flight Conducted Under: Part 91: General Aviation - Personal 

On September 23, 2017, about 1028 central daylight time, a Mitsubishi MU 2B-40 airplane, N73MA, was destroyed when it impacted terrain 3.5 miles northeast of the Ainsworth Regional Airport (ANW), Ainsworth, Nebraska. The private pilot was fatally injured. The airplane was owned by private individuals and operated by the pilot under the provisions of Title 14 Code of Federal Regulations Part 91. Instrument meteorological conditions prevailed, and an instrument flight rules (IFR) flight plan had been filed for the flight; however, it had not been activated. The personal flight was originating at the time of the accident and was en route to Bottineau Municipal Airport (D09), Bottineau, North Dakota.

According to Federal Aviation Administration (FAA) records and the pilot's cellular telephone records, the pilot contacted the Flight Service Station (FSS) in Fort Worth, Texas, about 1015 on the morning of the accident to file an IFR flight plan. The pilot stated that he was en route to D09 and requested an altitude of 16,000 ft. The FSS specialist offered to provide adverse weather and route of flight information; the pilot declined.

There were no other telephone calls made to FAA air traffic control (ATC) facilities or FSS, from the pilot's telephone, before the accident. Several notices to airman (NOTAMS) were issued for ANW and were valid on the day of the accident. Specifically, the hazardous inflight weather advisory service outlet and the remote communications outlet on frequencies 122.4 and 121.5 were out of service.

According to the ANW airport manager, the airplane was fueled in a hangar just before the flight because it was raining. The airport manager was in the fixed base operator (FBO) building when he heard the start of both engines; everything sounded normal. He watched the airplane depart from runway 35 (6,824 ft by 110 ft; asphalt) and enter the clouds.

Several witnesses in the area reported hearing an airplane flying from the southwest to the northeast. One witness located north of ANW characterized the sound as if the airplane was lower than usual or buzzing the ground. One witness stated that the visibility was low and that the engines sounded "wound up really tight, full throttle, and very loud." The witness heard a "thud" as he was walking into his house and asked his wife if anything had fallen in the house to which she responded no; he attributed the noise to a thunderstorm in the vicinity.

According to the pilot's family, he was flying to D09 to pick up a dog, who had been at a training camp all summer. He planned to meet a friend, who was training his dog, at D09 around 1200. The airplane was reported missing by the friend of the pilot when the airplane did not arrive at D09 as scheduled. The wreckage was located about 1800.

A search of ATC radar data did not find any primary or secondary radar targets consistent with the accident airplane. The "low altitude radar" was not operational in the area of ANW on the day of the accident. The airplane's exact route of flight after takeoff could not be established. 

Dr. Robert Cook (simply Dr. Bob to most)

Pilot Information

Certificate: Private
Age: 69, Male
Airplane Rating(s): Multi-engine Land; Multi-engine Sea; Single-engine Land
Seat Occupied: Unknown
Other Aircraft Rating(s): None
Restraint Used: Unknown
Instrument Rating(s): Airplane
Second Pilot Present: No
Instructor Rating(s): None
Toxicology Performed: Yes
Medical Certification: Class 3 With Waivers/Limitations
Last FAA Medical Exam: 05/09/2016
Occupational Pilot: No
Last Flight Review or Equivalent: 06/03/2017
Flight Time: (Estimated) 3775 hours (Total, all aircraft), 2850 hours (Total, this make and model)

At the time of medical certificate application, the pilot reported no chronic medical conditions and no medications. The pilot was issued a medical certificate that contained the limitation "must wear corrective lenses for near and distant vision."

The pilot's flight logbook was not located during the investigation. The co-owner of the airplane stated that he had co-owned several MU-2 airplanes with the pilot since 2000, and he estimated that the pilot had logged 2,500 hours in the make and model of the accident airplane. According to the pilot's application for medical certificate, dated May 9, 2016, he estimated his total pilot time was 3,775 hours; 64 of which were logged in the previous 6 months.

According to records provided by SIMCOM Aviation Training, the pilot had completed initial Mitsubishi MU-2B training at Flight Safety in 1999. The pilot's most recent recurrent training was completed on June 3, 2017, at SIMCOM. The pilot also successfully completed an instrument proficiency check at that time. The instrument training included a simulated partial panel instrument landing system (ILS) approach. At the time of the most recent recurrent course, the pilot estimated his time on the prerequisite form as 2,850 hours in MU-2B airplanes.

Aircraft and Owner/Operator Information

Aircraft Make: MITSUBISHI
Registration: N73MA
Model/Series: MU 2B-40 26A
Aircraft Category: Airplane
Year of Manufacture: 1979
Amateur Built: No
Airworthiness Certificate: Normal
Serial Number: 414 SA
Landing Gear Type: Retractable - Tricycle
Seats: 7
Date/Type of Last Inspection: 09/05/2017, 100 Hour
Certified Max Gross Wt.: 10470 lbs
Time Since Last Inspection: Engines: 2 Turbo Prop
Airframe Total Time: 5383.6 Hours as of last inspection
Engine Manufacturer: Honeywell
ELT: C91A installed, not activated
Engine Model/Series: TPE331
Registered Owner: On file
Rated Power:
Operator: On file
Operating Certificate(s) Held: None 

A flight log for the accident airplane, located in the wreckage and dated September 22, 2017, showed the airplane cycles at 1,125, and the hobbs at takeoff as 13,850.0 hours. The hobbs landing and flight time fields were not populated on the form. The departure airport was Kenosha Regional Airport (ENW), Kenosha, Wisconsin, and the destination was ANW.

According to a photograph of the instrument panel provided by the co-owner, the airplane was equipped with a two-screen Chelton Air Data Attitude Heading Reference System (ADAHRS) display in place of the standard 6 primary flight instruments on the pilot-side of the instrument panel. Below the two-screen Chelton display, from left to right, the pilot had an attitude indicator and a turn and slip indicator. A second attitude indicator was mounted on the co-pilot's side of the instrument panel, on the upper right corner. 

Meteorological Information and Flight Plan

Conditions at Accident Site: Instrument Conditions
Condition of Light: Day
Observation Facility, Elevation: KANW, 2588 ft msl
Distance from Accident Site: 3 Nautical Miles
Observation Time: 1035 CDT
Direction from Accident Site: 209°
Lowest Cloud Condition:
Visibility:  1.75 Miles
Lowest Ceiling: Overcast / 500 ft agl
Visibility (RVR):
Wind Speed/Gusts: 10 knots /
Turbulence Type Forecast/Actual: None / None
Wind Direction: 360°
Turbulence Severity Forecast/Actual: N/A / N/A
Altimeter Setting: 30.01 inches Hg
Temperature/Dew Point: 9°C / 9°C
Precipitation and Obscuration: Mist; No Precipitation
Departure Point: Ainsworth, NE (KANW)
Type of Flight Plan Filed: IFR
Destination: Bottineau, ND (D09)
Type of Clearance: None
Departure Time: 1028 CDT
Type of Airspace: Class E

A weather study was conducted by the National Transportation Safety Board in support of this accident investigation and the detailed weather study is available in the public docket.

The National Weather Service Surface (NWS) Surface Analysis Chart for 1000 CDT depicted a low-pressure system and an associated stationary front south of the accident site, with the accident site in an area of favorable overrunning conditions for low cloud development. The station models in the vicinity of the accident site, north of the front, indicated northerly winds of 5 to 10 knots, overcast cloud cover, and restricted visibility in fog or mist.

A review of the NWS Composite Reflectivity image taken at 1025 CDT depicted several strong to intense cells between 59 and 75 miles to the east-northeast of ANW and the accident site with no significant echoes in the immediate vicinity of the accident site. The Geostationary Operational Environmental Satellite depicted two bands of clouds with a radiative cloud top temperature consistent with 24,000 ft; the bands were on either side of the accident site. Low stratiform clouds were over the accident site.

The ANW weather observation taken at 1015 CDT reported wind from 360° at 10 knots, visibility 1 3/4 miles in mist, ceiling overcast at 500 ft agl. Temperature 10° Celsius (C), dew point temperature 10 C, and altimeter 30.02 inches of mercury. Similar conditions continued to be reported.

A Convective SIGMET for an area of embedded thunderstorms, a Center Weather Advisory for an area of heavy rain showers, and AIRMET Sierra for an extensive area of IFR conditions, were indicated for the route of flight.

Airport Information

Airport: Ainsworth Regional (KANW)
Runway Surface Type: Asphalt
Airport Elevation: 2588 ft
Runway Surface Condition:
Runway Used: 35
IFR Approach: None
Runway Length/Width: 6824 ft / 110 ft
VFR Approach/Landing: None

Ainsworth Regional Airport is a public, non-towered airport (Class E airspace) located 6 miles northwest of Ainsworth, Nebraska., at a surveyed elevation of 2,588 ft. The airport had 2 open asphalt runways; runway 17/35 (6,824 ft by 110 ft) and runway 13/31 (5,501 ft by 1,677 ft by 73 ft). Four area navigation (RNAV) (GPS) approaches and 2 VHF omnidirectional range (VOR) approaches were available. Special takeoff minimums of 1 statute mile visibility and obstacles departure procedures due to a fence near the departure end of runway 31 were in place. 

Wreckage and Impact Information

Crew Injuries: 1 Fatal
Aircraft Damage: Destroyed
Passenger Injuries: N/A
Aircraft Fire: None
Ground Injuries: N/A
Aircraft Explosion: None
Total Injuries: 1 Fatal
Latitude, Longitude: 42.536944, -99.959167 

The wreckage came to rest in a grazing pasture vegetated with tall grass. The accident site was at an elevation of 2,590 ft msl, and the debris and wreckage path were oriented on a magnetic heading of 270°.

Torn and fragmented remains of the left wing tip tank were located in the initial impact crater. The crater was about 3 ft deep, 10 ft wide, and 8 ft long. A long narrow ground scar extended from the initial impact crater west 6 ft to a second crater. The scar was about 3 ft at its widest point and about 1 ft deep.

The second crater was about 25 ft long, 20 ft at its widest point, and 6 ft deep. The second crater contained the left engine and left propeller assembly. The assembly exhibited signatures consistent with exposure to heat and fire. Two propeller blades separated from the propeller assembly and were embedded in the crater. The outboard 6 inches of two blades separated and were located north of the crater. The crater also contained torn and fragmented metal consistent with the left wing and fuselage, engine tubing and components, and the counter weight for the left horizontal stabilizer.

The right engine was located at the west end of the crater and was embedded in the ground.

A ground scar extended 6 ft west to a third crater. The crater was about 3 ft deep, 8 ft long, and 7 ft at its widest point. The crater contained fragmented metal, tubing, and components. The debris field continued from the third crater west about 23 ft to the main piece of wreckage.

The left main landing gear assembly was located 12 ft north of the main wreckage. The landing gear actuator position was consistent with the landing gear being retracted. The right main landing gear was with the main wreckage.

The main wreckage included flight control cables, electrical wiring, tubing, the vertical stabilizer, rudder, and center and left side of the wing.

Cabin seats, electrical wiring cables, and torn and fragmented metal extended farther west from the main wreckage. The farthest component was located about 280 ft southwest of the wreckage on the adjacent dirt farm road. The right elevator separated and was located 4 ft west of the main piece of wreckage. The right flap was separated and located about 10 ft farther west. The control cables were broken in multiple locations and continuity could not be confirmed. Separated cable ends illustrated broomstraw signatures consistent with overload separation due to impact forces. The fuselage was fragmented. The wing flaps were set at zero based upon the actuator position and was consistent with damage signatures on the cockpit flap selector.

The scope of the examination was limited by fragmentation due to impact damage; however, no anomalies consistent with a preimpact failure or malfunction were observed. 

Medical And Pathological Information

The Nebraska Institute of Forensic Sciences, Inc. performed the autopsy on the pilot on September 26, 2017, as authorized by Brown County Nebraska. The autopsy concluded that the cause of death was "multiple blunt force trauma," and the report listed the specific injuries. There was no evidence of recent medical intervention or natural disease that could pose a hazard to flight safety.

The FAA Bioaeronautical Sciences Research Laboratory, Oklahoma City, Oklahoma, performed toxicological tests on specimens that were collected during the pilot's autopsy. Carbon monoxide and cyanide tests were not performed. Results were negative for tested drugs. Testing of the liver revealed 12 mg/dL ethanol; however, no ethanol was detected in the muscle tissue. When ethanol is ingested, it is quickly distributed throughout the body's tissues and fluids fairly uniformly. Ethanol may also be produced in the body after death by microbial activity.

Additional Information

Chelton Air Data Attitude Heading Reference System (ADAHRS)

A Chelton ADAHRS was installed on the airplane in October of 2008 in accordance with the Chelton Flight Systems supplemental type certificate (STC) SA02203AK. During a flight from Kenosha, Wisconsin, to LaCross, Wisconsin, on the Wednesday before the accident, the pilot encountered a "transient flag" on the Chelton ADAHRS and mentioned it to the co-owner of the airplane. The pilot planned to take the airplane in for avionics work to follow-up on this issue the next week.

The owners of the airplane had avionics work completed at May Day Avionics in Grand Rapids, Michigan; there was no work done on the avionics immediately before the accident flight. According to a manager at May Day Avionics, the pilot left a voice mail on or around September 21 (2 days before the accident), regarding a transient flag he received on the unit. The voicemail stated that the flag was related to ADAHRS, but no further detail was provided. The manager did not speak directly with the pilot about the flag before the accident and could not provide any further details regarding the issue.

The Chelton Flight Systems Manual, Section 3, addresses "Failure Modes" for the system. There are potentially 6 modes with an ADAHRS failure mode or flag. Without further details regarding this transient flag the pilot encountered, it is not possible to factually discuss the impact this failure would have on the information displayed for the pilot. It is not known if the pilot had an issue with the Chelton system at the time of the accident.

The Chelton ADAHRS was fragmented in the accident and could not be functionally tested.

Wreckage Examination

The airplane wreckage was recovered and relocated to a secure facility for further examination.

The right engine exhibited extensive impact damage and was fragmented. Rotational scoring was present on the impeller blades and shroud. The first stage impeller was impact separated and all blades were separated along the hub at the root. The third stage blades were intact and exhibited metal spray. The right engine accessories were impact damaged and separated and could not be functionally tested.

The left engine exhibited extensive impact damage and was fragmented. The first stage impeller was impact damaged and all but two blades separated. The blades of the second stage impeller were bent opposite the direction of rotation with heavy wear signatures. The third stage blades were impact damaged, bent, and exhibited "heavy rub" signatures and metal spray deposits. The left engine accessories were impact damaged and separated and could not be functionally tested.

The left propeller assembly separated from the engine at the propeller flange. Three of the four blades from the left propeller assembly separated. Impact marks in the hydraulic units were consistent with a blade pitch between 26° and 60°. The blades were bowed and twisted and exhibited chordwise/rotational scoring, leading edge polishing, and gouges. The tips of two blades were impact separated.

The right propeller assembly separated from the engine at the propeller flange. Three of the four blades from the right propeller assembly separated. The blades were bowed and twisted and exhibited chordwise/rotational scoring, leading edge polishing, and gouges. The tip of one blade was impact separated.

The damage to both propeller assemblies was similar and symmetric, and the damage to the blades was consistent with ground impact while the engine was producing power and the propeller blades were producing thrust. No anomalies were noted that would have precluded normal operations.

Spatial Disorientation

The FAA Civil Aeromedical Institute's publication, "Introduction to Aviation Physiology," defines spatial disorientation as a loss of proper bearings or a state of mental confusion as to position, location, or movement relative to the position of the earth. Factors contributing to spatial disorientation include changes in acceleration, flight in IMC, frequent transfer between visual meteorological conditions (VMC) and IMC, and unperceived changes in aircraft attitude.

The FAA's Airplane Flying Handbook (FAA-H-8083-3A) describes some hazards associated with flying when the ground or horizon are obscured. The handbook states, in part:

"The vestibular sense (motion sensing by the inner ear) in particular tends to confuse the pilot. Because of inertia, the sensory areas of the inner ear cannot detect slight changes in the attitude of the airplane, nor can they accurately sense attitude changes that occur at a uniform rate over a period of time. On the other hand, false sensations are often generated; leading the pilot to believe the attitude of the airplane has changed when in fact, it has not. These false sensations result in the pilot experiencing spatial disorientation."