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Printed page 218. PDF page 238.
mandated by certification authorities The OEBs detailed above were subsequently issued as airworthiness directives by the relevant regulatory agencies. More specifically: The European Aviation Safety Agency (EASA) issued the procedure in OEB-A330-74-1 as Emergency AirworthOpen official document at PDF page 238ATSB AO-2008-070: In-flight upset, VH-QPA, 7 October 2008