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  • AS55, vicinity Fairview Alberta Canada, 1999 (Synopsis: On 28th April 1999, an AS-355 helicopter suffered an in-flight fire attributed to an electrical fault which had originated from a prior maintenance error undetected during incomplete pre-flight inspections. The aircraft carried out an immediate landing allowing evacuation before the aircraft was destroyed by an intense fire.)
  • AT45, vicinity Prague Czech Republic, 2012 (Synopsis: On 31 October 2012, the crew of an ATR42 on a handover airworthiness function flight out of Prague briefly lost control in a full stall with significant wing drop after continuing a prescribed Stall Protection System (SPS) test below the appropriate speed and then failing to follow the correct stall recovery procedure. Failure of the attempted SPS test was subsequently attributed to both AOA vanes having become contaminated with water during earlier aircraft repainting at a specialist contractor and consequently being constrained in a constant position whilst the SPS test was being conducted at well above the prevailing freezing level.)
  • AT72, en-route, southern Scotland UK, 2011 (Synopsis: On 15 March 2011, an ATR 72-200 on a non revenue positioning flight from Edinburgh to Paris CDG in night VMC with just the two pilots on board began to experience roll and directional control difficulties as the aircraft accelerated upon reaching the planned cruise altitude of FL230. A ‘PAN’ call was made to ATC and a return to Edinburgh was made with successful containment of the malfunctioning flying controls.)
  • B190, vicinity Bebi south eastern Nigeria, 2008 (Synopsis: On 15 March 2008, a Beech 1900D on a non-revenue positioning flight to a private airstrip in mountainous terrain flown by an inadequately-briefed crew without sufficient guidance or previous relevant experience impacted terrain under power whilst trying to locate the destination visually after failing to respond to a series of GPWS Alerts and a final PULL UP Warning. Whilst attributing the accident to the crew, the Investigation also found a range of contributory deficiencies in respect of the Operator, official charting and ATS provision and additional deficiencies in the conduct of the unsuccessful SAR activity after the aircraft became overdue.)
  • B722 / BE10, Atlanta GA USA, 1990 (Synopsis: On 18 January 1990, a Boeing 727-200 landing at Atlanta at night and in good visibility in accordance with an unconditional clearance failed to see that a Beechcraft King Air, which had landed ahead of it, had yet to clear the runway. The 727 was unable to avoid a collision after a late sighting. The 727 sustained substantial damage and the King Air was destroyed. The Investigation attributed the collision to a combination of the failure of the runway controller to detect the lack of separation resulting from their issue of multiple landing clearances and the inadequacy of relevant ATC procedures.)