An emb-190 returned to its departure airport when passengers and flight attendants reacted adversely...

Attributes
ACN	955374
Time
Date	201106
Local Time Of Day	0601-1200
Place
Locale Reference	ZZZ.Tower
State Reference	US
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Make Model Name	EMB ERJ 190/195 ER&LR
Operating Under FAR Part	Part 121
Flight Phase	Takeoff
Flight Plan	IFR
Component
Aircraft Component	Air Conditioning and Pressurization Pack
Person 1
Function	First Officer Pilot Flying
Qualification	Flight Crew Air Transport Pilot (ATP)
Events
Anomaly	Aircraft Equipment Problem Less Severe Flight Deck / Cabin / Aircraft Event Illness Flight Deck / Cabin / Aircraft Event Smoke / Fire / Fumes / Odor

Narrative:

After takeoff; cabin crew contacted pilots. Fumes in cabin. Passengers in rear were covering their mouths with clothing. Minor smell in cockpit. Flight attendants reported possible faint haze in rear cabin. Returned to departure airport for a precautionary landing. Performed overweight landing checklist. Deplaned passengers. Canceled flight. Flight attendant in aft seat was coughing and acquired a headache. As a precaution we called paramedics to the concourse to meet her inside and check her out. Suggest the cause may be possible engine oil/hydraulic fluid vaporization? We have a couple emb-190's that when APU is started after landing; AC packs get confused for thirty seconds and drive to hot until stabilizing. This aircraft is one of them. Could be related; not sure. More like possible oil vaporization. Also; this aircraft might have had a history on this subject.

Original NASA ASRS Text

Title: An EMB-190 returned to its departure airport when passengers and flight attendants reacted adversely to fumes; apparently emanating from the air conditioning system and entering the cabin. One Flight Attendant was examined by EMTs on arrival.

Narrative: After takeoff; cabin crew contacted pilots. Fumes in cabin. Passengers in rear were covering their mouths with clothing. Minor smell in cockpit. Flight attendants reported possible faint haze in rear cabin. Returned to departure airport for a precautionary landing. Performed overweight landing checklist. Deplaned passengers. Canceled flight. Flight Attendant in aft seat was coughing and acquired a headache. As a precaution we called paramedics to the concourse to meet her inside and check her out. Suggest the cause may be possible engine oil/hydraulic fluid vaporization? We have a couple EMB-190's that when APU is started after landing; AC packs get confused for thirty seconds and drive to hot until stabilizing. This aircraft is one of them. Could be related; not sure. More like possible oil vaporization. Also; this aircraft might have had a history on this subject.

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.

An emb-190 returned to its departure airport when passengers and flight attendants reacted adversely to fumes; apparently emanating from the air conditioning system and entering the cabin. One flight attendant was examined by emts on arrival.