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21 January 2015

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There are Airworthiness Directives and Service Bulletins for pitot masts and angle of attack vanes, which can give erroneous data. A non US or European carrier may not be required to implement them depending on their regulating group.

http://www.faa.gov/regulations_policies/airworthiness_directives/search/?q=A320&makeModel=&type=Current&sort=effectiveDate&direction=desc&filter=pitot

A problem with many pilots is that often they can't tell when the computers are lying to them, or resolve a display of bad or unreliable data. This model airplane has three flight data systems and a standby display, but you need a pilot to observe that the engine power setting is not correct for the altitude, attitude and speed. Also, typically this airplane transmits many reports automatically during the flight for trend monitoring and will also transmit for a fault or value out of parameters.

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