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Passenger Describes Bowling Ball-Sized Hole in United 767 Engine After Midair Incident

Passenger Describes Bowling Ball-Sized Hole in United 767 Engine After Midair Incident
Engine Failure Forces Emergency Landing in Ireland
A United Airlines Boeing 767-400 flight encountered a severe engine malfunction last week, compelling an emergency diversion to Ireland. Flight UA509, traveling from Rome Fiumicino Airport to Newark Liberty International Airport on July 11, was approximately three hours into its journey when a sudden loud bang and violent vibrations shook the aircraft. The incident prompted the crew to execute an emergency landing at Shannon Airport.
Passengers aboard the flight described a scene of alarm and distress as the right-hand engine failed. Several travelers reported feelings of panic, with some resorting to prayer and tears amid the uncertainty. Zach K., a passenger on the flight, recounted that the initial loud bang was immediately followed by intense shaking and a persistent vibration that was both audible and tactile throughout the cabin. An unusual odor was also detected. Flight attendants instructed passengers to raise their window shades to observe the affected engine.
The flight crew promptly shut down the malfunctioning engine and descended to a lower altitude before safely landing in Shannon approximately one hour after the incident. Passengers remained onboard for an additional 90 minutes while the aircraft underwent inspection. Upon disembarking, Zach observed a large hole in the right engine, estimating its size to be comparable to one or two bowling balls.
Aircraft Details and Ongoing Investigation
The aircraft involved is a 24-year-old Boeing 767-400ER, registered as N76065. Originally delivered to Continental Airlines in 2002, the plane joined United’s fleet following the 2010 merger. It is powered by two General Electric CF6 engines and has accumulated over 90,000 flight hours and 14,500 cycles. United Airlines confirmed that 215 passengers and 11 crew members were onboard during the incident. The remainder of the flight was canceled, with the airline providing hotel accommodations, compensation, and rebooking options for affected travelers. The aircraft remains grounded at Shannon Airport as investigations continue.
Context of Recent Aviation Safety Concerns
This incident occurs amid increased scrutiny of in-flight safety, particularly concerning Boeing aircraft, following several recent high-profile events. Notably, just one day prior to the United flight’s emergency, a Ryanair Boeing 737 experienced a critical midair incident on July 10, 2026. Shortly after departing Thessaloniki, Greece, a passenger window dislodged, partially ejecting a passenger from the aircraft. The plane returned safely to Thessaloniki, where the injured individual received medical treatment for shock and injuries. The National Transportation Safety Board reported that the Ryanair aircraft suffered a right engine issue and cabin decompression. Boeing has confirmed its cooperation with the ongoing investigation.
These incidents evoke memories of the 2018 Southwest Airlines tragedy, in which a fan blade detached from a Boeing 737 engine, penetrated a window, and resulted in a fatality. Such events have intensified calls for stringent maintenance protocols and regulatory oversight of aging aircraft fleets.
United Airlines has yet to provide an update regarding the status of the grounded Boeing 767 at Shannon.

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