Full Breakdown
Investigation into UPS Cargo Plane Crash Reveals Engine Mount Issues
11/21/2025, 11:12:16 AM
Overview of the Incident
On November 4, 2023, a UPS cargo plane, an MD-11, crashed shortly after takeoff from Muhammad Ali International Airport in Louisville, Kentucky, resulting in the deaths of three pilots and 11 individuals on the ground. Federal investigators have since released preliminary findings indicating that cracks were present in the left wing’s engine mount, contributing to the aircraft's failure.
Key Findings from the Investigation
The National Transportation Safety Board (NTSB) reported that the plane only ascended to 30 feet (9.1 meters) before the engine detached. Dramatic images captured the sequence of events, showing the engine beginning to separate, followed by flames engulfing the wing. The NTSB noted that the aircraft had not yet reached its scheduled maintenance inspection for the engine mount, which had been last examined in October 2021. According to aviation experts, fatigue cracks are common in older aircraft, raising questions about the adequacy of current inspection protocols.
Grounding of MD-11 Aircraft
In response to the crash, the Federal Aviation Administration (FAA) grounded all MD-11 aircraft operated by UPS, FedEx, and Western Global, as well as some related DC-10s, pending further inspections. Bill Moore, president of UPS Airlines, stated that the company is collaborating with investigators to ascertain the crash's root cause and develop a comprehensive inspection plan. The grounding of these aircraft, which constitute about 9% of UPS's fleet and 4% of FedEx's, may lead to significant operational costs and logistical challenges for the carriers.
Criticism and Calls for Change
Critics have expressed concern over the maintenance practices for MD-11 aircraft. Former federal crash investigator Alan Diehl emphasized the need for the FAA to reassess maintenance schedules and consider advanced inspection technologies beyond visual checks. He described engine pylon attachment failures as a critical vulnerability for these aircraft, which have historically high accident rates.
Official Statements & Responses
The NTSB's preliminary report highlighted the urgency of re-evaluating maintenance protocols for aging aircraft. Sean Garber, whose auto salvage yard was affected by the crash, remarked, “It’s one thing to be involved in a natural disaster and another thing to be involved in a man-made, human error tragedy.” Meanwhile, UPS is focused on determining the cause of the crash before proceeding with inspections and repairs.
Verbatim Quotes
- “It appears UPS was conducting this maintenance within the required time frame, but I’m sure the FAA is now going to ponder whether that time frame is adequate,” — Jeff Guzzetti, Former Federal Crash Investigator
- “It is clear that engine pylon attachment failures are these aircraft’s Achilles’ heels,” — Alan Diehl, Former Federal Crash Investigator
- “Once we determine that, then they’ll be able to develop an inspection plan,” — Bill Moore, President of UPS Airlines
What's Next
As investigations continue, the FAA is expected to outline specific inspection requirements for the grounded MD-11 fleet. The outcome of these findings may lead to broader implications for aircraft maintenance standards and operational safety in the aviation industry.
