Overview
• Operator: UPS (United Parcel Service)
• Aircraft Model: McDonnell Douglas MD-11 Freighter
• Registration: N252UP
• Flight Number: 5X-5876
• Route: Louisville, KY (USA) to Phoenix, AZ (USA)
• Date: 25 January 2025
• Occupants: Flight crew only
• Injuries: None reported
• Damage: Extent unknown, aircraft grounded for inspection
Incident Summary
UPS flight 5X-5876, a McDonnell Douglas MD-11F, was departing from Louisville International Airport (SDF) on runway 17R when the crew encountered multiple bird strikes shortly after takeoff.
Before establishing contact with departure control, the flight crew notified the tower that they had sustained bird strikes. The aircraft initially continued climbing but stopped its ascent at FL320, at which point the crew decided to return to Louisville as a precaution.
The aircraft landed safely on runway 17L approximately 30 minutes after departure. The extent of damage caused by the bird strikes is currently unknown. However, the aircraft remains on the ground in Louisville over 38 hours later, indicating ongoing inspections or potential repairs.
Sequence of Events
1. Takeoff & Bird Strike Encounter
• The MD-11 departed runway 17R at Louisville International Airport.
• Shortly after departure, the crew reported multiple bird strikes to air traffic control.
2. Climb & Decision to Return
• The aircraft initially continued its climb but stopped at FL320.
• The crew decided to return to Louisville as a precautionary measure.
3. Safe Landing & Grounding for Inspection
• The aircraft landed without further incident on runway 17L about 30 minutes after departure.
• The aircraft was removed from service for inspection and potential repairs.
Investigation & Safety Considerations
Bird Strike Hazard at Louisville International Airport
• Louisville International Airport (SDF) is located in a region with high bird activity, particularly waterfowl and migratory species.
• The airport employs bird hazard control measures, including wildlife management programs, habitat modifications, and active deterrents.
• Despite these efforts, bird strikes remain a persistent risk, particularly during low-altitude flight phases such as takeoff and landing.
Potential Aircraft Damage
• The extent of the damage to the aircraft is unknown, but potential risks include:
• Engine ingestion damage (common in high-speed bird strikes).
• Structural damage to leading edges, radome, or fuselage.
• Sensor malfunctions or impact-related failures.
Regulatory & Airline Response
• UPS confirmed the flight returned safely to Louisville and that the aircraft is undergoing a thorough post-flight inspection.
• The FAA was notified of the bird strike, as per standard safety protocols.
• UPS maintenance teams are assessing the aircraft for any necessary repairs before it can return to service.
Analysis & Recommendations
Risk Mitigation for Bird Strikes
• Enhanced Airport Wildlife Management
• Increased bird activity monitoring near runways.
• Seasonal adjustments to wildlife deterrence strategies.
• Further collaboration with wildlife control specialists.
• Pilot Awareness & Response
• Bird strike risks are highest during takeoff and landing when aircraft speeds are lower and evasive maneuvers are limited.
• Immediate reporting of bird strikes allows airport wildlife teams to take corrective actions.
• Use of aircraft lighting and noise deterrents may help reduce bird strike risks during takeoff.
Aircraft Status & Next Steps
• The UPS MD-11 remains grounded in Louisville as of 27 January 2025, over 38 hours after the incident.
• Maintenance inspections and possible repairs are underway to determine the full extent of any damage.
• Once deemed airworthy, the aircraft will be returned to service following standard safety protocols.
Disclaimer
This report is based on available information as of 27 January 2025. While every effort has been made to ensure accuracy, the completeness of the details cannot be guaranteed. If you are the rightful owner of any referenced materials and wish them removed, please email takedown@cockpitking.com.
