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Which is definitely not the state of America this week....
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Egyptair Flt 804 Final Report Released
The investigators are leaning toward an explosive device behind the cockpit bulkhead, but an oxygen-fueled fire cannot be ruled out. It was reported that Egyptair pilots were still permitted to smoke at the time. Terrorism is an easy go-to but then why no follow-up, no group claiming responsibility? That sort of defeats the purpose of terrorism.
https://www.civilaviation.gov.eg/Acc...2%20-%20AIRBUS...
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And if this occurred alongside an engine failure, I guess that would be a hell of a coincidence....
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But there are scenarios for the A330 that don't require BMC malfunction, but rather erroneous data sent to the BMC's. This is from a Finnish report of two Finnair incidents in which A330's suffered dual bleed air loss:
This scenario may be contained to certain ambient temperature conditions that wouldn't be present with the flight we're discussing. I don't know that this was ever determined.
As of 2012 (latest data I could find), about 30% of the A330 fleet were still not retrofitted with redesigned parts to contend with the threat....
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The Airbus lit depicts the Bleed Monitoring Computer in the system description and schematic but makes no mention of a failure as part of the scenario.
Here is a link to that article if it interests you:
https://safetyfirst.airbus.com/app/t...bleed-loss.pdf
This is a 2009 publication, so the problem may have been designed out since then, but perhaps not retrofitted to older planes....
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Well, pilot error is an important part of my speculation here. And it should be an important part of any consideration when determining safe dispatch condition....
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Wrong. If these events are unrelated, and just coincidental, then there is nothing to see here. I’m only find it curious if they are related....
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Maybe you're on to something.
ATL, I don't know what happened here but it involved a near-simultaneous loss of one engine and a loss of cabin pressurization. I am trying to work out how the two conditions may be related. One thing I've discovered is a failure scenario on the A330 when only one bleed is operating:
The result is the loss of both bleed systems despite the remaining engine. The procedure calls for first descending to FL200 and to use the APU bleed. Then the recovery procedure requires both packs to be operational....
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The MMEL is a baseline operational document for certification, from which the company operational document is derived. The MEL cannot be less restrictive than the MMEL. It is the baseline requirement that I am addressing, which I think should be more restrictive in this case, and not left to the MEL to add more cautious restrictions.
Perhaps your eleven-letter answer means you cannot provide us further details, but I'm interested in knowing what those further conditions are or if your MEL requires both packs for ANY passenger service dispatch....
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