Which of the following is NOT an outcome of a thorough accident investigation?

The correct choice highlights that enhancing equipment performance without any data is not an outcome of a thorough accident investigation.

In a proper accident investigation, the focus is on gathering and analyzing relevant data to understand the incident comprehensively. This process is critical for identifying causes and contributing factors, which can inform decisions about safety improvements and training needed to prevent future occurrences. The first, second, and fourth outcomes are all directly linked to the objectives of an accident investigation. For example, investigating an accident helps to avoid future losses in terms of human resources and equipment by addressing the root causes. Additionally, thorough investigations consider aspects that might have legal implications, such as liability and compliance with safety regulations.

However, the idea of enhancing equipment performance "without any data" contradicts the fundamental principle of an investigation, which is to derive actionable insights from collected evidence. Achieving equipment performance improvements requires a solid data foundation; thus, any claim to enhance it without data stands outside the scope of what a proper investigation aims to accomplish.