UPS permanently retires MD-11 aircraft after fatal crash in Louisville.
UPS has formally announced the permanent retirement of all MD-11 aircraft from its operational fleet, a decision underscored by the tragic crash that occurred in Louisville, Kentucky on November 4, 2025. This announcement was made during the company’s fourth-quarter earnings call, where UPS outlined its accelerated fleet modernization strategy, confirming the completion of the MD-11 retirement by the end of the previous year.
The deadly incident involved a three-member crew and resulted in the loss of 12 lives on the ground after the aircraft’s left engine detached shortly after takeoff from Muhammad Ali International Airport. Reports indicate that the aircraft managed to elevate only approximately 30 feet before it exploded upon impact, subsequently crashing into nearby commercial establishments, triggering further explosions at a recycling plant and auto parts store.
In the wake of the crash, the Federal Aviation Administration (FAA) took immediate action by grounding all MD-11 aircraft indefinitely. The McDonnell Douglas MD-11 was produced in limited numbers, with only 200 units manufactured before the series was discontinued. Investigations by the National Transportation Safety Board (NTSB) revealed critical mechanical failures, specifically identifying a split in a crucial component known as the spherical bearing race in the engine mount. The investigation further highlighted that these mounts had not undergone inspection since 2021, raising serious safety concerns about the maintenance practices adhered to by the company.
Adding to the complexity of the situation, aviation manufacturer Boeing had previously warned about potential failures related to this part back in 2011, albeit distinguishing that such flaws did not render the aircraft unsafe for operation. As of now, the definitive cause of the crash remains under investigation.
Despite the MD-11s comprising merely 9% of its total aircraft, UPS CEO Carol Tomé noted that the fleet was slated for gradual retirement prior to the incident. The company has since adjusted its operational logistics by leasing additional aircraft and enhancing its ground transportation capabilities, particularly during the holiday season. In further fleet optimization efforts, UPS plans to introduce 18 new Boeing 767s over the next 15 months.
According to filings with the U.S. Securities and Exchange Commission, UPS operated 27 MD-11 aircraft before the indefinite grounding. The decision to eliminate the MD-11s aligns with the shipping giant’s long-term strategy to maintain a modern and efficient fleet, aiming to enhance service reliability and safety in the face of evolving logistical demands.
This turn of events marks a significant shift for UPS, as the company redoubles its commitment to aviation safety and fleet modernization, ensuring operational integrity amidst ongoing scrutiny.
