Narrative:

Just after pushing back, while doing the safety demonstration, a haze appeared in the aft part of main cabin. Right when I noticed it, the captain called back and said they had smoke in the cockpit and we're going back to the gate. When they opened the cockpit door at the gate, the smoke smelled like antifreeze, or some kind of chemical, not a typical burning smoke smell. When maintenance came on board, after testing the engines and aircraft packs, nothing of significance was found. The passenger were asked to deplane before maintenance tested the engines in case there was more smoke, but there wasn't any. We reboarded and continued to ZZZ with no further incidence of smoke.

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Original NASA ASRS Text

Title: F100 FLT ATTENDANT DETECTED AN 'ANTIFREEZE SMELL' AND SMOKE IN THE CABIN AFTER PUSHBACK FROM THE GATE.

Narrative: JUST AFTER PUSHING BACK, WHILE DOING THE SAFETY DEMO, A HAZE APPEARED IN THE AFT PART OF MAIN CABIN. RIGHT WHEN I NOTICED IT, THE CAPT CALLED BACK AND SAID THEY HAD SMOKE IN THE COCKPIT AND WE'RE GOING BACK TO THE GATE. WHEN THEY OPENED THE COCKPIT DOOR AT THE GATE, THE SMOKE SMELLED LIKE ANTIFREEZE, OR SOME KIND OF CHEMICAL, NOT A TYPICAL BURNING SMOKE SMELL. WHEN MAINT CAME ON BOARD, AFTER TESTING THE ENGS AND ACFT PACKS, NOTHING OF SIGNIFICANCE WAS FOUND. THE PAX WERE ASKED TO DEPLANE BEFORE MAINT TESTED THE ENGS IN CASE THERE WAS MORE SMOKE, BUT THERE WASN'T ANY. WE REBOARDED AND CONTINUED TO ZZZ WITH NO FURTHER INCIDENCE OF SMOKE.

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.