Narrative:

During climb out; we smelled a dirty sock smell. Donned oxygen mask [advised ATC] and decided to return to [departure airport].

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Original NASA ASRS Text

Title: A330 flight crew reported returning to their departure airport because of fumes detected on the flight deck.

Narrative: During climb out; we smelled a dirty sock smell. Donned oxygen mask [advised ATC] and decided to return to [departure airport].

Data retrieved from NASA's ASRS site 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.