What Expert Testimony Reveals About Substance Use and Safety Gaps

The tragic Sea World helicopter crash on January 2, 2023, continues to raise critical questions about aviation safety and substance testing protocols. During the inquest, Adjunct Associate Professor and Head of Forensic Science & Chief Toxicologist at the Victorian Institute of Forensic Medicine (VIFM), Dimitri Gerostamoulos, provided key insights into the pilot’s condition and the adequacy of Sea World Helicopters’ drug and alcohol management plan.

Was the Pilot Impaired?

Gerostamoulos testified that while pilot Ashley Jenkinson had a lower level of cocaine metabolites than typically seen in fatal vehicle crashes, impairment was still considered likely. The pilot had consumed multiple lines of cocaine, and around 12 beers, and whiskey at a New Year’s Eve party approximately 36 hours before the crash.

Although Jenkinson passed an alcohol breath test on the morning of the flight, expert panel, including Gerostamoulos, suggested that a combination of factors – cocaine withdrawal, an alcohol hangover, work stress, and fatigue from lack of sleep – contributed to the probable impairment, which could affect subtle decision-making and performance in a complex aircraft.

Drug Testing Limitations

• Post-mortem tests revealed relatively low cocaine metabolite levels, prompting speculation that the cocaine may have been poor quality. This led another expert pharmacologist to, making severe impairment less probable, though still possible.
• Still, Gerostamoulos concluded he could not definitively say whether the pilot was impaired at the exact time of the crash, but stated: “It is likely given the consumption of alcohol and cocaine within that period”.

He added that a urine test on the morning of the crash would have definitely detected cocaine, while an oral fluid test might have picked it up. This highlights a critical gap – the pilot passed an alcohol test but was not drug tested before flying.

Policy Under Scrutiny

The inquest revealed that Sea World Helicopters’ policy required daily alcohol breath tests but no routine drug screening. Instead, the company relied on pre-employment checks, random tests, and “for cause” testing. Former operations head Llewella McNabb noted that drug tests could take up to 20 minutes, which may have influenced the decision not to implement daily testing.

Counsel assisting the coroner questioned why pilots engaged in “high-risk” activities were not drug tested daily. Aviation experts called the approach “somewhat slack,” and the coroner’s findings may lead to stricter industry regulations.

Regulatory Context

The Civil Aviation Safety Authority (CASA) maintains a zero-tolerance policy and a widespread testing program, but the responsibility for implementation lies with operators. This case underscores the need for more robust, consistent testing protocols to prevent residual substance effects from compromising safety.

Key Takeaway

The fact that the pilot, Ashley Jenkinson, passed a random drug test five months prior to the crash and an alcohol test the morning of the incident, yet still had traces of cocaine in his system from a party 36 hours earlier, highlighted a potential gap in the drug testing regime and its ability to detect the residual effects of substance use. 

For industries where safety is paramount, daily drug and alcohol screening should be considered non-negotiable.

Take Action

Don’t wait for a tragedy to highlight gaps in your safety protocols. If your organisation operates in a high-risk environment, daily drug and alcohol testing should be a priority – not an afterthought.

Talk to us about implementing a testing program that protects your people and your organisation.

Source

ABC News