Full Breakdown
FedEx MD-11 Cargo Planes Cleared for Return After FAA Approval
5/12/2026, 5:28:03 AM
Background: UPS Crash and MD-11 Grounding
In November 2025 a UPS-operated McDonnell Douglas MD-11 lost its left engine during the take-off roll at Louisville’s Muhammad Ali International Airport. The separation killed three crew members and 12 people on the ground, for a total of 15 fatalities. The National Transportation Safety Board (NTSB) identified fatigue cracking in the spherical-bearing race of the aft pylon mount as the primary cause. The Federal Aviation Administration (FAA) subsequently grounded all MD-11s pending a safety solution. UPS retired its MD-11 fleet in January 2026, while FedEx, which owned roughly 4 % of its cargo fleet as MD-11s, kept the type in storage.
Timeline of Key Events
- Nov 2025 – UPS MD-11 crash in Louisville; 15 deaths.
- Jan 2026 – UPS retires its MD-11 fleet.
- Early 2026 – Boeing develops a “means of compliance” that replaces the bearing and adds reinforced pylon plates.
- Mar 2026 – FAA completes an extensive review and approves Boeing’s fix and new inspection intervals.
- May 9-10 2026 – FedEx conducts two test flights (N621FE and N521FE) from Memphis to Miami and Los Angeles.
- May 19-20 2026 – NTSB holds two-day investigative hearings on the Louisville crash.
Technical Fix and Certification
Boeing’s modification package removes internal lubrication grooves that acted as stress concentrators, thickens stainless-steel reinforcement plates, and installs a new bearing in the aft mount of each side pylon. The FAA requires additional ultrasonic inspections at set intervals and a non-revenue technical proving flight before each aircraft returns to revenue service.
Data & Statistics
- Fatalities in the Louisville crash: 15 (3 crew, 12 ground).
- UPS MD-11 fleet represented ~9 % of its total cargo fleet; FedEx’s MD-11s account for ~4 % of its fleet.
- FedEx owned 46 MD-11s before the grounding (source 1) but plans to reactivate 28–29 aircraft by the end of May 2026 (sources 5, 8).
- Two of FedEx’s MD-11s completed test flights in early May 2026.
Official Statements & Responses
FedEx emphasized that its safety, engineering, and maintenance teams performed “rigorous safety inspections, maintenance, and planning” to ready the fleet. The company noted collaboration with Boeing, the FAA, and the NTSB, and reiterated that safety remains its highest priority. The FAA confirmed that Boeing’s compliance package met all regulatory requirements after an “extensive review.” The NTSB announced forthcoming hearings to further examine the crash’s underlying factors.
Criticism & Opposition
Attorney Bradley Cosgrove urged the FAA to conduct a thorough investigation before allowing the MD-11 fleet to resume operations. Aviation safety expert Jeff Guzzetti expressed surprise at the delay in returning the aircraft to service, noting that the NTSB had quickly identified the key safety issue.
Conflicting Reports & Gaps
- Fleet size: Sources differ on the number of MD-11s FedEx intends to reactivate—28 planes (source 5) versus 29 planes (source 6) versus 46 owned (source 1).
- Test-flight dates: One source lists a flight on May 10 2025 (likely a typographical error) while others cite May 9-10 2026.
- Exact timeline for full fleet return: FedEx aims for completion by the end of May 2026, but precise dates for each aircraft’s certification remain unspecified.
Verbatim Quotes
- “Safety is our highest priority at FedEx,” — Isabel Rollison, FedEx spokesperson
- “We hope the FAA does a thorough job of investigating the fixes before the MD-11 fleet is allowed to return to flight,” — Bradley Cosgrove, attorney
- “I’m confident that the solution will work, and I would like to see the MD-11s back up in the air. It will be a safe airplane with regards to its engines after these corrective actions are made,” — Jeff Guzzetti, aviation safety expert
- “FedEx says it intends to reinstate the operation of 28 MD-11 planes by the end of May, contingent upon meeting Boeing’s maintenance mandates.” — FedEx spokesperson (source 5)
What’s Next
The FAA will monitor compliance with the new inspection regime as FedEx phases its MD-11s back into service, beginning with the Memphis-Miami route serving Caribbean and South American markets. The NTSB’s May 19-20 hearings will probe additional safety concerns from the Louisville accident, potentially influencing future regulatory actions for the MD-11 type.
