Narrative:

Toxic fumes on descent. Upon descent from TOD; engines at idle; fumes became strong and onset quickly. My first officer and I were discussing such when we were alerted by the 'a' flight attendant of toxic fumes in the passenger cabin. We ran the smoke and fumes checklist in the QRH; instructed the flight attendants to use protective breathing if possible; went to high flow on the packs; and expedited our arrival into our destination. Upon arrival; all crewmembers were affected; eyes; throat; nasal; and headaches. We called dispatch; maintenance; and communicated with the chief pilot's office. [We] went to a local hospital for toxic screening. Most conditions passed over the next four hours. I personally still have an elevated pulse; blood pressure; and headache. Apparently; an element known as T.C.P. Is the likely cause of the event. An element in the engine oil; vaporizing into the air conditioning system; this is not a new event. This aircraft has had previous similar events; one I believe as recent as just a few days. I am not a chemist; however; I believe there are solutions to the oil problem. More extensive maintenance and research on this would be a good place for more resources.

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Original NASA ASRS Text

Title: At the top of descent with the engines at idle; an entire B737-400 aircraft filled with toxic fumes affecting the entire crew and requiring medical attention after landing. Tricresyl phosphate (TCP) was suspected.

Narrative: Toxic fumes on descent. Upon descent from TOD; engines at idle; fumes became strong and onset quickly. My First Officer and I were discussing such when we were alerted by the 'A' Flight Attendant of toxic fumes in the passenger cabin. We ran the SMOKE AND FUMES checklist in the QRH; instructed the flight attendants to use protective breathing if possible; went to high flow on the packs; and expedited our arrival into our destination. Upon arrival; all crewmembers were affected; eyes; throat; nasal; and headaches. We called Dispatch; Maintenance; and communicated with the Chief Pilot's office. [We] went to a local hospital for toxic screening. Most conditions passed over the next four hours. I personally still have an elevated pulse; blood pressure; and headache. Apparently; an element known as T.C.P. is the likely cause of the event. An element in the engine oil; vaporizing into the air conditioning system; this is not a new event. This aircraft has had previous similar events; one I believe as recent as just a few days. I am not a chemist; however; I believe there are solutions to the oil problem. More extensive maintenance and research on this would be a good place for more resources.

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.