JimmyHoffaRocks
Airbus safety Magazine issue 13| Jan 2012 has an article on this subject. Too big to reproduce fully. Important things below:
TheFlight Warning Computer (FWC) F6 standard, planned for certification beginning2012, will include a new ECAM AIR ENG 1(2) BLEED HI TEMP caution that triggerswhen one engine bleed is OFF and the temperature of the remaining engine bleed
exceeds240°C. The associated ECAM procedure calls for one pack or the wing anti-ice tobe switched OFF (fig. 4).Embodiment of the FWC F6 standard will cancel the OEB 40
The consequences ofDual Bleed Loss occurrences range from in-flight turn backs to cabin depressurizationevents followed by flight diversions.
Technical solutionshave been devised, which are summarized in this article. They include new
maintenance andoperational procedures as well as redesigned components available via retrofit.
These solutions haveproved efficient as the number of events has started to decrease, both for the
A320 Family as forthe A330, in the face of ever increasing fleets. The handling of DBL events,should they occur, will now be made easier.
A single and simpleECAM procedure will cover all cases of Dual Bleed Loss. This will assist crewsin the identification and management of these events in the most appropriate manner(recovering bleed system when possible, avoiding excessive
cabin altitude,continuing the flight to destination or to a most suitable diversion airport).An updated QRH procedure will be published pending the retrofit of the new FWCstandards.
Last edited by vilas; 25th Jun 2013 at 06:07.