No fault was found with the engine's brakes and reliability. After a detailed hearing into the health and sobriety of the driver, the finding was that alcohol and drugs were not present in his body from post-mortem examination and he had not suffered a seizure.
An investigation into the engine's brakes and reliability found nothing amiss. A thorough probe into the driver's health and sobriety led to the finding that he had not ingested any intoxicating substances prior to his death, as revealed by the autopsy, and there was no record of him having a seizure.