Narrative:

I flew a B737-700 this week and another not too long ago with full face mask oxygen masks. Both times I put them on while the first officer went to the lavatory it was obvious that they would never fit my face. They are entirely too large. There is no way to achieve a seal not even with positive pressure. I don't know if they are made like this or getting stretched out when guys use them; but it is obvious that in a fire I would be dead. I am not particularly small; although I am a trim female. These are obviously made only for big boys making it appear the rest of us are expendable.

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Original NASA ASRS Text

Title: B737 Captain reports that the full face oxygen mask found on some B737-700 aircraft will not fit her face and does form as seal around the edges (too large).

Narrative: I flew a B737-700 this week and another not too long ago with full face mask oxygen masks. Both times I put them on while the First Officer went to the lavatory it was obvious that they would NEVER fit my face. They are entirely too large. There is no way to achieve a seal not even with positive pressure. I don't know if they are made like this or getting stretched out when guys use them; but it is obvious that in a fire I would be dead. I am not particularly small; although I am a trim female. These are obviously made only for big boys making it appear the rest of us are expendable.

Data retrieved from NASA's ASRS site as of July 2013 and automatically converted to unabbreviated mixed upper/lowercase text. This report is for informational purposes with no guarantee of accuracy. See NASA's ASRS site for official report.