Hi,
• The July 17, 2007, an Airbus A320 TAM left the runway 35L at Congonhas Sao Paulo (Brazil), killing 199 people. In its final report on Brazilian CENIP says the concept of automation of the A 320 does not allow drivers to always have a good knowledge of the situation:
The Concept of the automation in the A-320 Does not Always Allow The Pilot to know EXACTLY how the Operation are Being Performed by The System.
On 27 November 2008, the crew of an A 320 lost control of his aircraft at low altitude over the sea near Perpignan. The accident victim was 7. During this flight, blocking two probes incident led to the miscalculation of the characteristic speeds (and Vαprot Vαmax), rejection of ADR 3, the direct passage into law and had rendered inoperative automatic compensation. This succession of automation in a very complex system has not been seen by the crew. The pilots did not understand what was happening. In its final report recommended that the BEA very diplomatic way to the European Agency for Aviation Safety Agency (EASA) to ensure that pilots are better informed of the situation at Airbus reconfiguration of systems:
BEA recommends that EFSA carries out a study to improve safety standards system certification warning crews during reconfiguration of flight control systems
• The June 28, 2010, EASA alerted operators of aircraft of type A 330 / A 340 that in some cases a failure of one engine on take-off could lead to a surge toward the ground and limit the potential for driver counter the phenomenon:
This condition leads to a movement of The Elevator To The zero position, Which has inducer pitch down movement INSTEAD of a pitch up movement Needed to lift off. In addition, it leads to a limitation of The Pilot control is pitch axis and limits capacity to The Pilot Count The pitch down movement Düring this flight phase, Which year deriving their unsafe condition.
• The August 24, 2010, during a flight between Khartoum and Beirut, an Airbus A320 suffered a power outage announcement of imprecisely to the pilots and caused the uncontrolled activation of the trim of the rudder. The AAIB recommended that British crews Airbus A 320 are informed:
Safety Recommendation 2010-092: It Is Recommended That all operators of Airbus alert A320-series aircraft of The Possibility That year Electrical Power Generation System Fault May Not Be On The ECAM annunciated clearly ", and May lead to uncommanded rudder trim operation.
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Because of the complexity of hyper Airbus, it may happen that the pilots did not understand what the automation and worse, they do not know what to do to get out of a situation that they no longer control !
Source:
L?hyper complexité des systèmes a des limites qu?Airbus ignore. : Les dossiers noirs du transport aérien