Overview
• Operator: Saudia Cargo
• Aircraft Model: Boeing 747-400 Freighter
• Registration: 9H-AKJ
• Flight Number: SV-934
• Route: Amsterdam (AMS) → Riyadh (RUH)
• Date: 5 March 2025
• Passengers & Crew: Unknown (Cargo Flight)
• Injuries: None
• Aircraft Status: Grounded at Liege (LGG), Belgium
Incident Summary
Shortly after departure from Amsterdam Schiphol Airport (AMS), the #4 engine (outboard right-hand PW4056) failed while the aircraft was climbing through FL190.
✅ Crew declared Mayday, Mayday, Mayday.
✅ Stopped the climb and assessed the situation.
✅ Initiated a diversion to Liege (LGG), Belgium.
✅ Landed safely on Liege’s runway 23L about 80 minutes later.
Possible Causes of Engine Failure
The Pratt & Whitney PW4056 is a high-bypass turbofan engine, known for reliability, but failures can occur due to:
1️⃣ Compressor Failure – A surge or stall could cause a loss of thrust.
2️⃣ Turbine Blade Failure – Fatigue or overheating can lead to catastrophic failure.
3️⃣ Fuel System Malfunction – Blockages or contamination affecting combustion.
4️⃣ Oil System Failure – Insufficient lubrication can cause overheating and shutdown.
5️⃣ Foreign Object Ingestion (FOD) – Birds or debris damaging engine internals.
Operational Impact
• Diversion to Liege avoided potential risks of returning to busy AMS airspace.
• Aircraft remains grounded in Liege for inspection and possible engine replacement.
• Potential delays in cargo shipments and impact on Saudia Cargo’s flight scheduling.
Crew’s Response & Safety Actions
✅ Declared Mayday promptly, ensuring ATC prioritization.
✅ Stopped climb and prevented unnecessary engine strain.
✅ Diverted to a suitable alternate airport (Liege) with long runways and cargo handling facilities.
✅ Executed a controlled and safe landing.
The crew followed correct emergency procedures, ensuring safety.
Investigation & Next Steps
• Saudia Cargo’s maintenance team and aviation authorities will inspect the failed PW4056 engine.
• Belgian aviation authorities (possibly EASA) may conduct an independent review.
• If the engine requires replacement, the aircraft could remain grounded for several days.
• Cargo may be transferred to other flights or alternate aircraft.
Conclusion
This engine failure incident was managed professionally by the flight crew, ensuring a safe outcome. The diversion to Liege was a prudent decision, minimizing risk while maintaining operational flexibility for Saudia Cargo.
An investigation is ongoing to determine the root cause of the PW4056 engine failure, with a likely outcome of either repair or full replacement before the aircraft returns to service.
Disclaimer
“This report is based on publicly available information as of 6 March 2025. While every effort has been made to ensure accuracy, we cannot guarantee the completeness of the details. If you are the rightful owner of any referenced materials and wish them removed, please email takedown@cockpitking.com.”
