On February 20th, 2021, a routine domestic flight turned into a nightmare when United Airlines Flight 328 experienced a catastrophic engine failure around 20 minutes of flight time from takeoff at Denver International Airport (DEN). The Boeing 777-200 plane's mishap left the air travel market stunned and shook aircraft security along with maintenance procedures. Flight 328 was flying from Denver to Honolulu, a routine trip for the plane. But just four minutes into a flight, passengers and crew members on board were confronted with a horror when one of the plane's engines suddenly shut down. The Boeing 777-222 aircraft departing the Denver International Airport suffered a catastrophic engine failure that would create a domino effect and result in a trail of wreckage as far away as the Broomfield suburban housing blocks in Colorado. The engine failure caused segments of engine cowling to shatter and disperse hither and yon with a more than mile-long debris field. The horse and buggy-type crashing debris were witnessed by those on the ground who immediately recorded the accident on their smartphones and dash cams. Witnesses described the horrifying scene of wreckage falling out of the air, with some even entering the roof of a single private residence and severely damaging a standing vehicle. Luckily, even with the severity of the engine failure and the extensive amount of debris it left behind, no passenger or flight crew were harmed on board the aircraft or on the ground. The flight crew responded appropriately to mitigate the emergency situation, following standard procedure and returning the aircraft safely to Denver International Airport. The accident raised an instant reaction from investigators and the aviation authorities. The National Transportation Safety Board (NTSB) investigated the failure of the engine to determine the cause of the accident. The reports at the early stages showed a fractured fan blade on the engine, malfunctioning of engine cowling, and the debris trail left behind. The accident questioned the inspection and maintenance policy of the aircraft engines and defects in some components of the engine. After the crash, United Airlines and some other airlines that operate similar planes immediately grounded several Boeing 777 aircraft flown by the same engine. The preventive action reflected industry devotion to safety and readiness to move rapidly when there is perceived risk. United Airlines Flight 328 crash reminds us of the dynamic and complex nature of aviation. The crash highlights the necessity of stringent maintenance procedures, regular flight crew training, and the strength of safety systems to absorb risk. The crash also showcases the power of technology, with smartphone and dashboard camera footage documenting key evidence to shed light on the incident. With the inquiry into the engine failure's cause remaining ongoing by aviation regulators, the lesson to be gleaned from this accident will undoubtedly go a long way in informing future designs of safety measures and ensure passengers' and crew members' health.