| 11. | Fire broke out in February 1997, forcing the crew to don oxygen masks.
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| 12. | He was reported to be conscious but on an oxygen mask.
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| 13. | Oxygen masks come off, and there is an excited buzz throughout the plane.
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| 14. | Shure also manufactured specialized headsets and the MC-1 oxygen mask microphone.
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| 15. | Every plane is equipped with oxygen masks in case the cabin loses pressure.
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| 16. | Heavy insulation renders them harmless when used for emergency oxygen masks.
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| 17. | One of the victims was moving his arms and adjusting his oxygen mask.
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| 18. | Announcements were simple and there was no need for an oxygen mask demonstration.
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| 19. | One occurrence resulted in dropped oxygen masks and an emergency landing.
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| 20. | They purge the cabin of pressure until the oxygen masks start to drop.
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