Narrative:

After starting the APU; I noticed a dirty sock smell coming from the vents. Having smelled this before I disregarded it at first. We decided to start both engines during push to shut down the APU bleed. After a few minutes of taxiing; the smell continued and I noticed a dull headache; nausea; and burning; itchy eyes. I mentioned this to the captain and she commented that she had a headache. We contacted dispatch and maintenance control and we all agreed to return to the gate. The flight was canceled and medical services were notified. They came to the hotel to evaluate those involved.

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Original NASA ASRS Text

Title: A319 First Officer reports a 'dirty sock' smell when the APU is started and the packs turned on. After engine start the smell persists and headache; nausea; and burning; itchy eyes are experienced by both the Captain and First Officer. Aircraft returns to the gate and flight is canceled.

Narrative: After starting the APU; I noticed a dirty sock smell coming from the vents. Having smelled this before I disregarded it at first. We decided to start both engines during push to shut down the APU bleed. After a few minutes of taxiing; the smell continued and I noticed a dull headache; nausea; and burning; itchy eyes. I mentioned this to the Captain and she commented that she had a headache. We contacted Dispatch and Maintenance Control and we all agreed to return to the gate. The flight was canceled and medical services were notified. They came to the hotel to evaluate those involved.

Data retrieved from NASA's ASRS site as of April 2012 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.