Federal investigators have identified cracks in the engine mount of a UPS cargo plane that tragically crashed in Kentucky, claiming 14 lives. The incident occurred on November 4, near Muhammad Ali International Airport in Louisville.
Crash Details and Investigation Findings
On Thursday, a preliminary report from the National Transportation Safety Board (NTSB) was released, accompanied by dramatic photos capturing the moments before the disaster. These images display the left engine beginning to detach from the aircraft as it ascended. The MD-11 cargo plane only managed to reach an altitude of 30 feet (9.1 meters) before crashing.
The NTSB indicated that three pilots on board were killed, along with 11 individuals on the ground. The plane’s last inspection took place in October 2021, and it required nearly 7,000 additional takeoffs and landings before a detailed examination of key engine mount components was scheduled.
Criticism of Maintenance Practices
Former federal crash investigator Jeff Guzzetti noted that while maintenance appeared to be conducted within acceptable timeframes, the Federal Aviation Administration (FAA) may need to reassess these intervals. He stated, “It’s crucial to consider if that timeframe is adequate.” Aviation expert John Cox emphasized that fatigue cracks are common due to normal wear and tear on aircraft components.
- Flight data revealed that an alarm sounded 37 seconds after takeoff thrust was requested.
- The crash led to a grounding of all MD-11 aircraft operated by UPS, FedEx, and Western Global.
- MD-11 aircraft constitute about 9% of the UPS fleet and 4% of the FedEx fleet.
Future Steps and Industry Implications
Bill Moore, president of UPS Airlines, stated that the company is collaborating with investigators to determine the exact cause of the crash. “Once identified, we will create an inspection plan,” he mentioned. The process may be lengthy and complex, with potential high costs associated with inspection and maintenance upgrades.
Industry experts remain concerned about the structural integrity of the MD-11 aircraft. The NTSB referenced historical incidents involving similar planes. For example, a DC-10 crash in Chicago in 1979 highlighted similar vulnerabilities in engine pylon attachments.
Call for Enhanced Safety Measures
Former crash investigator Alan Diehl urged the FAA to revisit maintenance schedules and explore advanced methods for inspecting metal components instead of relying solely on visual checks. “Engine pylon attachment failures are a significant concern for these aircraft,” Diehl warned.
As the investigation continues, the community in Louisville is still processing the tragedy, with memorial services and events being held to honor the victims.
