What role do maintenance logs play in crash investigations?

Maintenance logs are crucial in crash investigations as they provide detailed records of the condition and reliability of the vehicles involved in the incident. These logs document routine maintenance, repairs, and any issues that have been reported with the vehicle prior to the crash. By reviewing these logs, investigators can ascertain whether the vehicle was properly maintained and if any mechanical failures contributed to the accident. For instance, a vehicle that has not received necessary maintenance may be more likely to fail during operation, thereby potentially leading to a crash. Understanding the vehicle's maintenance history is essential to establish accountability and determine factors that may have influenced the safety and performance of the vehicle at the time of the accident.