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  • B743, vicinity Tehran Mehrabad Iran, 2015 (Synopsis: On 15 October 2015 a Boeing 747-300 experienced significant vibration from one of the engines almost immediately after take-off from Tehran Mehrabad. After the climb out was continued without reducing the affected engine thrust an uncontained failure followed 3 minutes later. The ejected debris caused the almost simultaneous failure of the No 4 engine, loss of multiple hydraulic systems and all the fuel from one wing tank. The Investigation attributed the vibration to the Operator's continued use of the engine without relevant Airworthiness Directive action and the subsequent failure to continued operation of the engine after its onset.)
  • B772, London Heathrow UK, 2008 (Synopsis: On 17 January 2008, a British Airways Boeing 777‑200ER crash-landed 330 metres short of the intended landing runway, 27L, at London Heathrow after a loss of engine thrust on short final. This un-commanded reduction of thrust was found to have been the result of ice causing a restriction in the fuel feed system. Prompt crew response minimized the extent of the inevitable undershoot so that it occurred within the airport perimeter.)
  • B772, Tokyo Narita Japan, 2008 (Synopsis: On July 30 2008, a Boeing 777-200 being operated by Vietnam Airlines on a scheduled passenger flight landed at Narita in daylight and normal visibility and shortly afterwards experienced a right engine fire warning with the appropriate crew response following. Subsequently, after the aircraft had arrived at the parking stand and all passengers and crewmembers had left the aircraft, the right engine caught fire again and this fire was extinguished by the Airport RFFS who were already in attendance. There were no injuries and the aircraft sustained only minor damage.)
  • B772, en-route Bozeman MT USA, 2008 (Synopsis: On 26 November 2008, a Boeing 777-200 powered by RR RB211 Trent 800 series engines and being operated by Delta AL on a scheduled passenger flight from Shanghai Pudong to Atlanta was in the cruise at FL390 in day VMC in the vicinity of Bozeman MT when there was an uncommanded thrust reduction or ‘rollback’ of the right engine.)
  • B772, en-route, northern Indian Ocean, 2014 (Synopsis: On 16 April 2014, a pre-flight concern about whether a Boeing 777-200ER about to depart Singapore had been overfuelled was resolved by a manual check but an en-route fuel system alert led to close monitoring of the fuel system. When a divergent discrepancy between the two independent fuel remaining sources became apparent, an uneventful precautionary air turnback was made and overfuelling subsequently confirmed. The Investigation found that a system fault had caused overfuelling and that the manual check carried out to confirm the actual fuel load had failed to detect it because it had been not been performed correctly.)
  • C550, en-route, north of Savannah GA USA, 2019 (Synopsis: On 9 May 2019, a Cessna 550 level at FL 350 experienced an unexplained left engine rundown to idle and the crew began descent and a diversion to Savannah. When the right engine also began to run down passing 8000 feet, an emergency was declared and the already-planned straight-in approach was successfully accomplished without any engine thrust. The ongoing Investigation has already established that the likely cause was fuel contamination resulting from the inadvertent mixing of a required fuel additive with an unapproved substance known to form deposits which impede fuel flow when they accumulate on critical fuel system components.)