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Helios Airways 522

Printed page 155. PDF page 167.

referring to the pressurization system (Before Start and After Takeoff). The use of the same aural warning to signify two different situations (Takeoff Configuration and Cabin Altitude) was not consistent with good Human Factors principles. Over the past several years,

Open final report at PDF page 167AAIASB 11/2006: Helios Airways HCY522