Narrative:

While taxiing, a smoky haze filled the cabin. We stopped safety demonstration to notify captain. We were not sure if the haze was due to air conditioning humidity or smoke. There was only a slight odor of something burning -- electrical, oil -- we weren't sure. We returned to the gate. Firemen met the plane. The haze was dissipating. The passenger deplaned. The cargo hold was examined. Later, I overheard one of the firemen state that an air conditioning pack had burned, along with motors. I don't know if that was verified. The plane went OTS. Passenger remained calm throughout.

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Original NASA ASRS Text

Title: AN FK100 RETURNS TO THE GATE WHEN THE CABIN ATTENDANTS NOTICE SMOKE OR HAZE IN THE CABIN ASSOCIATED WITH A BURNING OIL BASED SCENT AT IAH, TX.

Narrative: WHILE TAXIING, A SMOKY HAZE FILLED THE CABIN. WE STOPPED SAFETY DEMO TO NOTIFY CAPT. WE WERE NOT SURE IF THE HAZE WAS DUE TO AIR CONDITIONING HUMIDITY OR SMOKE. THERE WAS ONLY A SLIGHT ODOR OF SOMETHING BURNING -- ELECTRICAL, OIL -- WE WEREN'T SURE. WE RETURNED TO THE GATE. FIREMEN MET THE PLANE. THE HAZE WAS DISSIPATING. THE PAX DEPLANED. THE CARGO HOLD WAS EXAMINED. LATER, I OVERHEARD ONE OF THE FIREMEN STATE THAT AN AIR CONDITIONING PACK HAD BURNED, ALONG WITH MOTORS. I DON'T KNOW IF THAT WAS VERIFIED. THE PLANE WENT OTS. PAX REMAINED CALM THROUGHOUT.

Data retrieved from NASA's ASRS site as of July 2007 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.