In-flight upset - 154 km west of Learmonth, WA, 7 October 2008,

Figure 18: Example of ECAM warning and caution messagesThere were seven lines available at the bottom of the E/WD to display warning andcaution messages. 36 The messages were displayed in a priority order, with the mostimportant messages displayed at the top. Level 3 messages were displayed abovelevel 2 messages, which were displayed above level 1 messages. When there weremultiple messages at the same level, the most recent message had the highestpriority.If the flight crew completed a displayed action, the ECAM automatically removedthe action line below the relevant message. The flight crew could also clear amessage by pressing the ‘clear’ pushbutton. If the conditions that led to thepresentation of a warning or caution message were no longer present, the ECAMautomatically removed the message. If the conditions for the message returned, themessage was again displayed.Relevant flight crew proceduresThe operator’s A330 Flight Crew Operating Manual (FCOM) was based on theaircraft manufacturer’s manual. Volume 3 of the manual contained standardoperating procedures and abnormal and emergency procedures. For most of theabnormal and emergency procedures, the ECAM and the FCOM presentations wereconsistent, with the procedures organised under the relevant ECAM warning orcaution message. 37Required actions associated with some of the ECAM messages relevant to theoccurrence flight are presented in Table 6.3637As indicated in Figure 18, a green arrow at the bottom of the screen indicated whether there weremore messages than could be displayed in the space available.For a small number of abnormal or emergency situations, the relevant procedure was notassociated with an ECAM message. For some of those situations, flight crew were required tocomplete the relevant procedure from memory and not refer to the manuals (for example,emergency descent or unreliable airspeed indications). In other situations, temporary procedures ofsignificant importance could be promulgated as Operations Engineering Bulletins (OEBs). All ofthe procedures relevant to this occurrence were available for display via the ECAM.- 29 -