Date: 9th November 2024
Location: Geneva Airport, Switzerland
Aircraft: Boeing 757-200, registration G-BMRA
Flight Number: D0-4982
Operator: DHL Air
Flight Route: Leipzig (Germany) to Geneva (Switzerland)
Crew: 2 (cargo flight, no passengers)
Summary of Events
On 9th November 2024, DHL Air Flight D0-4982, a Boeing 757-200 cargo flight en route from Leipzig, Germany, to Geneva, Switzerland, experienced an engine failure during descent. The crew shut down the affected Rolls-Royce RB211 engine as a precaution and continued the descent for a safe landing on Runway 22 at Geneva Airport.
The aircraft remains grounded at Geneva as of 21st November 2024, pending inspections. Switzerland’s Safety Investigation Authority (SUST) is conducting a preliminary review to determine whether a full investigation will be initiated.
Aircraft and Crew Information
The Boeing 757-200, a twin-engine narrow-body aircraft, is widely used for cargo operations due to its reliability and long-range capabilities. The specific aircraft, registration G-BMRA, was part of DHL Air’s fleet and powered by Rolls-Royce RB211 engines, known for their performance but requiring meticulous maintenance.
The flight crew consisted of two experienced pilots trained in handling in-flight engine failures. Their prompt decision to shut down the affected engine and proceed with a single-engine landing ensured the safety of the flight.
Sequence of Events
1. Cruise and Descent:
The flight departed Leipzig on schedule, carrying cargo to Geneva. The journey was uneventful until the descent phase when the crew detected an anomaly in one of the RB211 engines.
2. Engine Shutdown:
Following standard procedures, the crew shut down the affected engine after identifying signs of failure. The aircraft continued the descent on the remaining operational engine, maintaining stability and safety.
3. Safe Landing in Geneva:
The 757 landed safely on Runway 22 at Geneva Airport without incident. Emergency services were on standby but were not required, as the situation was under control.
4. Post-Landing Status:
The aircraft was towed to a remote area for inspection and remains grounded as of 21st November 2024, awaiting detailed technical assessment and maintenance.
Engine Failure and Initial Findings
The Rolls-Royce RB211 engine has a reputation for reliability, but its complex design necessitates regular inspections. Potential causes for the engine failure include:
• Mechanical Damage: Internal wear or foreign object damage could have caused a failure in key components.
• Oil System Issues: Contamination, leaks, or insufficient lubrication may have led to overheating or part failure.
• Sensor or Control Failures: Faulty sensors or engine control systems might have caused incorrect operation or false readings.
The airline’s maintenance records and recent engine performance data are being reviewed to identify any signs of pre-existing issues.
Crew Actions and Safety Measures
The flight crew’s response to the engine failure was prompt and in accordance with standard operating procedures (SOPs). Their decision to shut down the engine and proceed to Geneva on one engine reflects rigorous training and professionalism. The Boeing 757-200 is designed to operate safely on a single engine, ensuring control and stability during the approach and landing phases.
SUST Preliminary Assessment
Switzerland’s Safety Investigation Authority (SUST) is currently reviewing the incident to determine whether a full investigation will be launched. The preliminary clarification focuses on:
1. Engine Performance and Maintenance History:
• Reviewing maintenance logs for evidence of prior anomalies or deferred repairs.
• Assessing adherence to manufacturer-recommended inspection intervals.
2. Operational Decision-Making:
• Evaluating the crew’s handling of the engine failure and adherence to SOPs.
• Examining communication with air traffic control and emergency response readiness.
3. Potential Design or System Issues:
• Assessing whether the failure was isolated or indicative of a broader issue with the RB211 engine series.
Conclusions
The engine failure experienced by DHL Flight D0-4982 underscores the importance of routine maintenance and the robustness of crew training. The safe landing in Geneva highlights the Boeing 757-200’s reliability and the professionalism of DHL Air’s flight crews.
Pending the outcome of the SUST’s review, the findings may inform operational practices and maintenance protocols to mitigate future occurrences.
Recommendations
1. Enhanced Engine Maintenance Protocols:
Operators should prioritise detailed inspections of RB211 engines, particularly focusing on components prone to wear and tear.
2. Crew Training for Engine Failures:
Reinforce simulator-based training for handling single-engine operations during critical flight phases.
3. Data-Driven Monitoring:
Use predictive maintenance tools to monitor engine performance in real time, identifying potential failures before they occur.
4. Incident Reporting and Sharing:
Encourage airlines and regulatory bodies to share findings from engine-related incidents to enhance safety industry-wide.
Safety Lessons and Industry Impact
This event demonstrates the critical importance of maintaining high safety standards in cargo operations. Engine failures, while rare, require meticulous planning, robust maintenance practices, and skilled crew response to ensure safe outcomes.
The investigation may lead to industry-wide enhancements in engine monitoring and maintenance practices, particularly for aging fleets and engines with complex designs like the RB211.
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Our investigation reports are based on all the evidence and facts we have at the time of writing and posting. We apologise if any details are missed or are not fully accurate.
