What is the famous crash of the P and W crash?

The P and W crash refers to the tragic incident involving Pratt & Whitney's aircraft engines, specifically the crash of a Boeing 737 operated by United Airlines in 1991. The crash was attributed to a failure in the engine's components, leading to a catastrophic loss of power. This incident highlighted the importance of rigorous maintenance and safety protocols in aviation engineering, prompting further investigations and improvements in engine design and oversight.