Date: 15 Jan 97 04:23:56 From: email@example.com (Simon Craig) Organization: OzEmail Ltd - Australia References: 1
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>Two questions arise from this :- > >1. How does an unaccompanied minor find herslf in such a position - >especially in Business Class? Can't answer this one. Aren't kids toilet trained by the time they are nine? >2. What was the reason to decrease altitude in order for the passenger >to be freed from the toilet?? Are the toilets at a different pressure >to that of the rest of the cabin? On Boeing a/c (and I assume Airbus would be similar) vacuum toilets operate on the differential pressure btwn the cabin and outside above 15,000 ft (or thereabouts). This means that a valve opens to ambient air and that provides the motive force to suck the contents of the toilet bowl into the waste tank. Below that level a electrically operated blower is used. I'm not sure what the suction difference is, but I can tell you that it is MUCH more noisy at altitude, suggesting to me that the vacuum is much greater using diff pressure - especially at cruising altitude! >From what I've read in the papers (not usually accurate), a valve failed to close, or it opened uncommanded, whilst the girl was still seated. Regards, -- Simon Craig --- If it's not Boeing, then I'm not going!