Narrative:

Odor on aircraft when APU bleed selected on. Maintenance opinion was that odor was caused by rain water mixed with fluid on side of plane were being brought into APU intake and causing odor. After engine start odor was less but still there. At take off odor became very strong; eyes nose and throat burned. Went on O2 and returned to field for overweight landing. Paramedics met crew and took to hospital for tests. On going odor problem with aircraft pack system.

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Original NASA ASRS Text

Title: An A319 crew declared an emergency; donned O2 masks and returned to land after a strong odor caused burning eyes and throat.

Narrative: Odor on aircraft when APU bleed selected on. Maintenance opinion was that odor was caused by rain water mixed with fluid on side of plane were being brought into APU intake and causing odor. After engine start odor was less but still there. At take off odor became very strong; eyes nose and throat burned. Went on O2 and returned to field for overweight landing. Paramedics met crew and took to hospital for tests. On going odor problem with aircraft pack system.

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.