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  • A333, en-route, south of Moscow Russia, 2010 (Synopsis: On 22 December 2010, a Finnair Airbus A330-300 inbound to Helsinki and cruising in very cold air at an altitude of 11,600 metres lost cabin pressurisation in cruise flight and completed an emergency descent before continuing the originally intended flight at a lower level. The subsequent Investigation was carried out together with that into a similar occurrence to another Finnair A330 which had occurred 11 days earlier. It was found that in both incidents, both engine bleed air systems had failed to function normally because of a design fault which had allowed water within their pressure transducers to freeze.)
  • A388, en-route Batam Island Indonesia, 2010 (Synopsis: On 4 November 2010, a Qantas Airbus A380 climbing out of Singapore experienced a sudden and uncontained failure of one of its Rolls Royce Trent 900 engines which caused considerable collateral damage to the airframe and some of the aircraft systems. A ‘PAN’ was declared and after appropriate crew responses including aircraft controllability checks, the aircraft returned to Singapore. The root cause of the failure was found to have been an undetected component manufacturing fault. The complex situation which resulted from the failure in flight was found to have exceeded the currently anticipated secondary damage from such an event.)
  • B732, en-route, Maui Hawaii, 1988 (Synopsis: On 28 April 1988, a Boeing 737-200, operated by Aloha Airlines experienced an explosive depressurisation and structural failure at FL 240. Approximately 5.5 metres (or 18 feet) of cabin covering and structure was detached from the aircraft during flight. As result of the depressurisation, a member of the cabin crew was fatally injured. The flight crew performed an emergency descent, landing at Kahului Airport on the Island of Maui, Hawaii.)
  • B734, vicinity East Midlands UK, 1989 (Synopsis: On 8 January 1989, the crew of a British Midland Boeing 737-400 lost control of their aircraft due to lack of engine thrust shortly before reaching a planned en route diversion being made after an engine malfunction and it was destroyed by terrain impact with fatal or serious injuries sustained by almost all the occupants. The crew response to the malfunction had been followed by their shutdown of the serviceable rather the malfunctioning engine. The Investigation concluded that the accident was entirely the consequence of inappropriate crew response to a non-critical loss of powerplant airworthiness.)
  • B735, vicinity Perm Russian Federation, 2008 (Synopsis: On September 13 2008, at night and in good visual conditions*, a Boeing 737-500 operated by Aeroflot-Nord executed an unstabilised approach to Runway 21 at Bolshoye Savino Airport (Perm) which subsequently resulted in loss of control and terrain impact.)
  • B738, en-route, Aegean Sea, 2019 (Synopsis: On 22 August 2019, the left engine of a Boeing 737-800 failed for unknown reasons soon after reaching planned cruise level of FL360 twenty minutes after departing Samos, Greece and two attempted relights during and after descent to FL240 were unsuccessful. Instead of diverting to the nearest suitable airport as required by applicable procedures, the management pilot in command did not declare single engine operation and completed the planned flight to Prague, declaring a PAN to ATC only on entering Czech airspace. The Investigation noted that engine failure was due to fuel starvation after failure of the engine fuel pump.)