Narrative:

The aircraft was loaded; and pushed. Both engines were started using the APU. The APU was shutdown after the engine starts were completed. After taxiing to the runway; the flight departed normally. We climbed to our assigned altitude of 36;000; (we were filed for 38;000; but ATC assigned the lower altitude) using 290KTS; speed mode; and auto-pilot on. Just prior to reaching our assigned altitude; the pilot not flying took a call from our flight attendants saying they; along with some of the passengers were feeling a little light headed; and that their ears were popping. They thought we could be having a pressurization problem; and wanted us to check. The pilot not flying passed the information to me and we switched the EICAS to the ecs synoptic page. The cabin pressure showed 8.4 D/P; cabin altitude of 6400 ft; the packs operating normally with pack 1 temperature set to 24C; and pack 2 temperature set to 25C. Both the first officer and I felt none of the symptoms the flight attendant's were experiencing. About 10 minutes later; I called the flight attendant's to see how they were doing. They said they were still feeling a little light headed; but would be okay. I asked if they wanted me to divert. They thought they would be okay going on. The pilot not flying checked back with flight attendant's a few more times as we began our descent; to see how they were doing. Each time the said they were still feeling a little sick; but would be okay to continue. After landing and clearing the runway; I had the pilot not flying call back to the flight attendant's to see if anyone needed us to call paramedics for medical assistance; or help at the gate. The flight attendant's declined. I wrote up the aircraft in the log; describing the events that occurred; and maintenance came to try to troubleshoot any problems. In the end both flight attendant's needed medical attention; while both pilot's felt no ill effects. I don't know why this event occurred. The cause is still being investigated.

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Original NASA ASRS Text

Title: CRJ900 flight crew is informed enroute by the Cabin Attendants that they are feeling ill; possibly from hypoxia. Crew finds pressurization to be normal and flight continues to destination. Flight Attendants seek medical attention after landing.

Narrative: The aircraft was loaded; and pushed. Both engines were started using the APU. The APU was shutdown after the engine starts were completed. After taxiing to the runway; the flight departed normally. We climbed to our assigned altitude of 36;000; (we were filed for 38;000; but ATC assigned the lower altitude) using 290KTS; speed mode; and Auto-Pilot on. Just prior to reaching our assigned altitude; the Pilot Not Flying took a call from our Flight Attendants saying they; along with some of the passengers were feeling a little light headed; and that their ears were popping. They thought we could be having a pressurization problem; and wanted us to check. The Pilot Not Flying passed the information to me and we switched the EICAS to the ECS Synoptic page. The cabin pressure showed 8.4 D/P; cabin altitude of 6400 FT; the packs operating normally with Pack 1 temperature set to 24C; and Pack 2 temperature set to 25C. Both the First Officer and I felt none of the symptoms the Flight Attendant's were experiencing. About 10 minutes later; I called The Flight Attendant's to see how they were doing. They said they were still feeling a little light headed; but would be okay. I asked if they wanted me to divert. They thought they would be okay going on. The Pilot Not Flying checked back with Flight Attendant's a few more times as we began our descent; to see how they were doing. Each time the said they were still feeling a little sick; but would be okay to continue. After landing and clearing the runway; I had the Pilot Not Flying call back to the Flight Attendant's to see if anyone needed us to call paramedics for medical assistance; or help at the gate. The Flight Attendant's declined. I wrote up the Aircraft in the log; describing the events that occurred; and Maintenance came to try to troubleshoot any problems. In the end both Flight Attendant's needed medical attention; while both Pilot's felt no ill effects. I don't know why this event occurred. The cause is still being investigated.

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.