A321 pilot reported several crew members detected an odor and a metallic taste during descent.

Attributes
ACN	1516554
Time
Date	201802
Local Time Of Day	1201-1800
Place
Locale Reference	ZZZZ.Airport
State Reference	FO
Aircraft 1
Make Model Name	A321
Operating Under FAR Part	Part 121
Flight Phase	Descent
Flight Plan	IFR
Person 1
Function	Pilot Flying Captain
Qualification	Flight Crew Multiengine Flight Crew Air Transport Pilot (ATP) Flight Crew Instrument
Events
Anomaly	Aircraft Equipment Problem Less Severe Flight Deck / Cabin / Aircraft Event Smoke / Fire / Fumes / Odor Flight Deck / Cabin / Aircraft Event Illness

Narrative:

Descending into ZZZ the flight attendants smelled an odor and after landing a metallic taste and sore throat. I also had a metallic taste in my mouth. Soon thereafter one flight attendant had respiratory problems and seemed to have a temperature. Before we could leave the airport she was vomiting in the bathroom. When we got to the hospital her blood pressure was way off. Three of us were seen and one flight attendant spent the night at the hospital in observation.engine oil getting into the bleed air system most likely number 2 engine.would be great to have a meter and warning in the cockpit when toxins enter the bleed system.

Original NASA ASRS Text

Title: A321 pilot reported several crew members detected an odor and a metallic taste during descent.

Narrative: Descending into ZZZ the flight attendants smelled an odor and after landing a metallic taste and sore throat. I also had a metallic taste in my mouth. Soon thereafter one flight attendant had respiratory problems and seemed to have a temperature. Before we could leave the airport she was vomiting in the bathroom. When we got to the hospital her blood pressure was way off. Three of us were seen and one flight attendant spent the night at the hospital in observation.Engine oil getting into the bleed air system most likely number 2 engine.Would be great to have a meter and warning in the cockpit when toxins enter the bleed system.

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.