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Old 19th July 2010 | 16:16
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Checkboard
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Joined: Aug 1998
: ATPL
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From: Ex-pat Aussie in the UK
The 737-300 and up uses generators, 20 mins is standard, 40 mins is an option for operations in high terrain areas.

The 737-1/200 and 747 uses bottles, and I wouldn't be surprised if the 777 was the same.
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