NTSB report details what happened before a plane crashed north of Fort Worth, killing the pilot

On a quiet October afternoon, tragedy struck near Hicks Airfield when a small plane went down, claiming the life of 67-year-old pilot John Unangst. The crash left the community grappling with the loss of a beloved figure who was known for his passion for aviation. This sudden and devastating incident, which occurred on October 7, 2023, near Fort Worth, has prompted a thorough investigation by federal authorities, seeking to understand the precise circumstances that led to the fatal descent.

The Tarrant County Medical Examiner's Office officially identified John Unangst, 67, as the pilot who tragically died in the plane crash near Hicks Airfield. His passing sent ripples of sorrow through the close-knit aviation community, where he was a familiar and respected presence. The National Transportation Safety Board (NTSB) immediately launched an inquiry into the incident, releasing a preliminary report on October 26, 2023, that began to shed light on the final moments of the flight.

The Ill-Fated Flight

The accident involved a single-engine, experimental, fixed-wing aircraft, specifically a Sonex Waiex with registration number N721SX. Owned and operated by Mr. Unangst himself, the aircraft departed from Hicks Airfield (T67) at approximately 1:20 PM Central Daylight Time on that fateful Saturday. His intended destination was Mineral Wells Airport (KMWL), a routine flight for many pilots in the region.

However, what began as a standard journey quickly turned catastrophic. Witnesses near the crash site reported observing the aircraft flying at a low altitude before hearing alarming sounds. Accounts included descriptions of an “engine sputtering,” followed by “popping sounds,” and then the chilling declaration that the “engine quit.” These critical observations paint a grim picture of the mechanical failure that likely preceded the crash.

One witness vividly recalled seeing the aircraft “pitch up, then nose down and spiral into the ground.” The impact was severe, with the Sonex Waiex striking the ground in a nose-down, wings-level attitude. A significant post-crash fire erupted, further complicating the scene and the subsequent investigation. The swift response of emergency services was critical, but sadly, Mr. Unangst could not be saved.

A Pilot's Legacy and Community Impact

John Unangst was more than just a pilot; he was a dedicated enthusiast with a profound love for flying. Friends and family remember him as a generous man who often shared his flying experiences with others, embodying the spirit of camaraderie that defines the aviation community. His passion was evident in his commitment to his aircraft, as he performed much of the maintenance on the Sonex Waiex himself, a common practice among experimental aircraft owners.

Records indicate Mr. Unangst held a Private Pilot certificate with an Airplane Single Engine Land rating, issued by the Federal Aviation Administration (FAA). His third-class medical certificate, issued on June 1, 2023, included the limitation that he must wear corrective lenses, a standard requirement for many pilots. With over 1,000 total flight hours and more than 100 hours specifically in the make and model of the Sonex Waiex, he was an experienced aviator, making the circumstances of the crash all the more perplexing and tragic.

The loss of Mr. Unangst has left a palpable void in the local aviation community. His contributions and the relationships he built highlight the interconnectedness of those who share a passion for flight, often forming bonds that resemble an extended family. In times of such profound loss, the strength of community, rooted in shared values and mutual support, becomes a vital comfort to those grieving.

The NTSB Investigation Continues

The NTSB's preliminary report provides crucial details gathered from the initial on-site examination. Investigators noted that a small amount of fuel was found in the fuel tank selector valve and fuel lines, a detail that will be thoroughly analyzed as part of the broader inquiry into potential fuel system issues. The aircraft was powered by a Rotax 912ULS engine, a common choice for experimental aircraft like the Sonex Waiex, manufactured by Rotax Aircraft Engines.

A significant challenge for investigators has been the non-recovery of both the engine logbook and the airframe logbook. These documents are vital for understanding the aircraft's maintenance history, modifications, and operational life. The last annual condition inspection for the experimental aircraft was completed on July 17, 2023, just months before the accident, suggesting recent compliance with safety checks.

Weather conditions at the time of the crash were reported from Fort Worth Alliance Airport (KAFW), approximately 10 miles east of the accident site. The wind was from 110 degrees at 10 knots, with visibility at 10 miles. There were few clouds at 3,000 feet, a temperature of 29°C, a dew point of 13°C, and an altimeter setting of 29.98 inches of mercury. These conditions generally indicated clear flying weather, ruling out immediate adverse atmospheric factors as a primary cause.

Ensuring Future Safety and Supporting the Aviation Family

The rigorous investigation by the NTSB is not merely about assigning blame; it is a critical process aimed at preventing future tragedies. Every detail, from witness accounts to mechanical findings, contributes to a comprehensive understanding that can lead to improved safety protocols and aircraft design. This commitment to safety is paramount for the trust placed in air travel, whether for commercial flights or the vibrant world of general aviation.

Organizations like the Aircraft Owners and Pilots Association (AOPA) and the Experimental Aircraft Association (EAA) play crucial roles in advocating for pilot safety and supporting the community of private aviators. Their work, alongside the findings of the NTSB, helps to foster a culture of continuous improvement in aviation, benefiting all who take to the skies. The insights gained from incidents like this one near Hicks Airfield are shared across the nation, informing safety awareness from Houston to the farthest reaches of Texas, a mission supported by agencies like the Texas Department of Transportation (TxDOT)'s aviation division.

As the NTSB's final report remains pending, the community reflects on Mr. Unangst's legacy, remembering the skies he once navigated and the lives he touched. The hope is that through this thorough and painstaking investigation, lessons will be learned that honor his memory by making the skies safer for all. This commitment to safety, and the support for families and communities affected by such losses, underscores the enduring values of our society, reminding us that even in tragedy, there is a path towards greater understanding and protection for future generations.

The Flight Safety Foundation, among other organizations, consistently emphasizes the importance of learning from every incident. For residents across Texas, including those in the City of Houston, these investigations underscore the rigorous processes in place to maintain public trust in air operations. The dedication of investigators from the Tarrant County Medical Examiner's Office and the NTSB ensures that every detail is scrutinized, aiming to provide answers and contribute to a safer future for aviation enthusiasts and the public alike.