Safety issue

Safety issue description

The Flight Crew Operating Manual procedure for crew comparison of the calculated Vref40 speed, while designed to assist in identifying a data entry error, could be misinterpreted, thereby negating the effectiveness of the check.

Issue number AO-2014-162-SI-01
Issue owner Qantas Airways Ltd
Transport function Aviation: Air transport
Date issue released 16/11/2015
Issue status justification

The action by Qantas provides an additional defence to address the risk associated with this safety issue. 

Safety action

Action type Proactive action
Action number AO-2014-162-NSA-004
Organisation Qantas Airways Ltd
Action date 16/11/2015
Action description

Qantas Airways Ltd. (Qantas) has advised that the Central Display Unit pre-flight procedure has been modified as follows. After the take-off data has been verified and compared by both flight crew, they are to check the ‘APPROACH REF’ page and verify the Vref40 speed.

Action status Closed