Discuss the below:
On July 19, 1989, the tail-mounted No. 2 engine of United Airlines Flight 232 exploded, causing serious damage to the aircraft's hydraulic systems and leaving the flight controls unusable.
Discuss how the failure of the engine shown in the video introduced a hazard in other aircraft systems resulting in difficulty controlling the aircraft. Use resources from the National Transportation Safety Board (NTSB) and other credible sources in aviation to substantiate your initial post and responses. Engage in relevant and focused conversation.