Newly released photographs from a federal investigation show the scene of a plane crash that killed Claude Sonday, 75, of Bull Valley, (inset) near Galt Airport in unincorporated Wonder Lake, which Sonday owned. | Provided Photos

The NTSB has released investigation files on the airplane crash that killed a 75-year-old man, who owned Galt Airport, near Wonder Lake in late 2022.

The McHenry County Sheriff’s Office, Wonder Lake Fire Protection District and Hebron-Alden-Greenwood Fire Protection District responded around 5:15 p.m. on November 25, 2022, to Galt Airport, 5112 Greenwood Road in unincorporated Wonder Lake.

The McHenry County Sheriff’s Office said they received a call for a single airplane crash near the airport.

The crash involved a model EA-300LC plane, which was owned by Claude Sonday, 75, of Bull Valley, the sheriff’s office said and records showed.

Newly released photographs from a federal investigation show the scene of a plane crash that killed Claude Sonday, 75, of Bull Valley, near Galt Airport in unincorporated Wonder Lake, which Sonday owned. | Provided Photos

Firefighters at the scene reported the plane was approximately a quarter-mile east of the runway up against a tree.

Sonday, who was the sole occupant of the plane, was pronounced deceased at the scene, according to the sheriff’s office.

The McHenry County Sheriff’s Office said they contacted the National Transportation Safety Board (NTSB) and Federal Aviation Administration (FAA) to continue the investigation.

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A spokesperson for the NTSB told Lake and McHenry County Scanner that investigators were on site collecting information the day after the incident.

The crash occurred approximately a half-mile east of the airport in a wooded area, the spokesperson said.

The owner of Galt Airport, Claude Sonday, speaks during an aviation club meeting at Galt Airport in January 2016. | Photo: Galt Airport

Federal authorities removed the aircraft and transported it to an offsite facility for further analysis.

Sonday became the official owner of Galt Airport after purchasing it with his wife in 2013 at a foreclosure auction.

“Words cannot fully express our profound sadness at the loss of our friend and owner of Galt Airport, Claude Sonday. He will be missed greatly by all who knew him. We will share information regarding service arrangements as it becomes available,” the airport said in a statement following the incident.

Over two years later, the NTSB released its investigation files earlier this month. The 15 files included a variety of data, analysis, photographs and interviews.

According to the NTSB, the plane had departed Galt Field Airport from runway 27 and entered a climbing right turn north.

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Newly released photographs from a federal investigation show the scene of a plane crash that killed Claude Sonday, 75, of Bull Valley, near Galt Airport in unincorporated Wonder Lake, which Sonday owned. | Provided Photos

The plane completed at least two aerobatic maneuvers and flew east toward Antioch, according to a report.

The plane entered a left 360-degree turn over a residential area south of Antioch.

It then proceeded northwest before traveling west into Wisconsin. The plane turned south and proceeded back into Illinois toward Galt Airport.

As the plane began descending toward runway 27, it crashed approximately a half-mile from the approach end of the runway at 4:15 p.m.

A Piper PA-28-181 airplane had been flying in the runway 27 traffic pattern at the time of the accident.

The pilot of the Piper reported speaking to Sonday on the radio before Sonday crashed, the report said.

Newly released photographs from a federal investigation show the scene of a plane crash that killed Claude Sonday, 75, of Bull Valley, near Galt Airport in unincorporated Wonder Lake, which Sonday owned. | Provided Photos

The pilot of the Piper recalled being slightly disoriented by sun glare but otherwise made an “uneventful” touch-and-go landing on runway 27 before reentering the traffic pattern.

Another witness reported to investigators that he saw Sonday’s plane in a descent toward the airport and heard its engine running followed by what sounded like a wood-chipper, the report said.

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The witness did not hear any change in engine noise as the airplane descended below his sightline.

Investigators noted that an examination of the airplane revealed no preimpact mechanical anomalies.

There was no evidence of a bird strike during the flight, the report said. Engine monitor data confirmed the engine was operating at the time of the accident.

Autopsy results found no medical issues that would have contributed to the accident, the FAA said. A toxicology report showed no illegal drugs or alcohol in Sonday’s system.

People who knew Sonday told investigators that he was an experienced pilot with no ego and was not careless or reckless.

The NTSB documents released indicated investigators appeared to believe the cause of the crash was attributed to sun glare.