Six months after a fatal crash grounded every MD-11 freighter in the United States, FedEx is still waiting for federal regulators to let its planes fly again. The carrier operates the world’s largest remaining fleet of the tri-engine widebody, roughly 50 aircraft that once hauled freight across oceans and continents. All of them have been parked since November, and the Federal Aviation Administration has given no timeline for lifting the restriction.
The next major milestone arrives on May 19, 2026, when the National Transportation Safety Board opens a two-day investigative hearing into the crash that triggered the grounding. That hearing, which will be livestreamed, represents the first public forum where engineers from Boeing and GE Aerospace will face questioning under oath about what caused an engine and its pylon to tear away from a cargo jet during takeoff.
The crash that started it all
On November 4, 2025, UPS Flight 2976, an MD-11F freighter, lost its left engine and pylon shortly after lifting off from Louisville, Kentucky. The aircraft crashed, killing both crew members on board, according to the NTSB’s preliminary report filed under case number DCA26MA024.
The FAA responded within days by issuing an emergency Airworthiness Directive that prohibited all MD-11 and MD-11F operations until operators completed inspections and corrective actions targeting the engine-pylon attachment structure. A subsequent final rule published in the Federal Register broadened the grounding to include MD-10 and DC-10 aircraft, which share key structural design features with the MD-11’s pylon system. The specific AD designation and Federal Register citation have not been independently verified against the published document and should be treated with caution.
UPS moved to retire its entire MD-11 fleet permanently, a decision reported by the Associated Press and Reuters in late 2025 and early 2026. FedEx and a handful of smaller operators chose a different path: they want to bring their aircraft back. But the FAA’s grounding order contains no expiration date and no automatic sunset clause. It stays in force until the agency issues a replacement or rescinds it outright.
What FedEx is up against
FedEx has not released a public statement detailing how many of its MD-11Fs have completed the required inspections, what those inspections have revealed, or when the company expects to resume flights. The carrier also has not disclosed how it is rerouting cargo volume to other aircraft in its fleet, which includes Boeing 767Fs and 777Fs.
The silence is notable because the MD-11F has been a backbone of FedEx’s long-haul network for decades. Removing roughly 50 widebody freighters from service strips significant cargo capacity from global routes, forcing the airline to either absorb the loss through schedule changes and reduced payloads or lease additional lift from other carriers at higher cost. No official estimate of the financial toll has been published by FedEx or industry analysts.
The FAA, for its part, has described its posture as a continuing review of facts and circumstances, language the agency used in public statements and that was reported by the Associated Press. That phrasing signals that regulators have not reached an internal consensus on whether inspections and modifications can adequately address the structural risk. It also suggests the FAA is waiting for more data from the NTSB before committing to a decision.
The investigation so far
The NTSB has not determined a probable cause for the engine-pylon separation on UPS Flight 2976. The board’s investigation docket includes preliminary factual reports, witness statements, and maintenance records, but the critical question of why the pylon failed remains unanswered. Possible factors under examination include manufacturing defects, maintenance lapses, metal fatigue, and inherent design vulnerabilities, though the board has not publicly pointed to any single cause.
The May 19-20 hearing is structured to surface technical testimony from Boeing and GE Aerospace engineers, along with input from the FAA, UPS, and relevant labor unions, all of whom are listed as formal parties to the investigation. NTSB board members and technical staff will question witnesses on the record. A witness list and detailed agenda have not yet been released but are expected before the hearing date.
The expansion of the grounding to DC-10 and MD-10 models adds another layer of complexity. The FAA cited shared design features in the engine-pylon attachment system as justification, but the agency has not publicly specified which structural elements triggered the concern or whether the risk differs between the MD-11 and its older predecessors. Operators of those legacy freighters face the same regulatory limbo as FedEx: they cannot fly until the directive’s requirements are satisfied, and those requirements hinge on findings still emerging from the investigation.
What the NTSB hearing could change
The two-day hearing in May is not expected to produce a final verdict. NTSB investigative hearings are fact-finding exercises, not adjudications, and the board’s formal probable cause report typically follows months or even years later. But the hearing will place detailed engineering analysis into the public record for the first time, giving FedEx, other operators, and the FAA a clearer picture of what went wrong and what fixes might be required.
If testimony points to a specific, correctable flaw in the pylon structure, that could open a path for the FAA to issue revised airworthiness requirements that would allow inspected and modified MD-11Fs to return to service. If the evidence suggests a broader design vulnerability affecting the entire aircraft family, the regulatory calculus shifts dramatically, and permanent retirement becomes a more realistic outcome for the remaining fleet.
For now, the record supports only a narrow set of confirmed facts: a fatal structural failure brought down a cargo jet; regulators grounded an entire aircraft family in response; one major operator walked away from the type permanently, according to wire service reporting; and the other is waiting on a combination of investigative findings and regulatory judgment before it can fly again. Everything beyond that, including predictions about recertification timelines or long-term shifts in global cargo capacity, remains unresolved until the evidence catches up.
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*This article was researched with the help of AI, with human editors creating the final content.
