Narrative:

Departed ZZZ at 500 ft; heard chimes in cabin; got call from flight attendants; smelled electrical smoke and saw faint smoke in upper cabin. Emergency declared; turned downwind; landed overweight; performed a little of QRH that time allowed. Completed before landing checklist; smoke dissipated; taxied to gate.

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Original NASA ASRS Text

Title: SMOKE IN CABIN IMMEDIATELY AFTER TKOF TRIGGERS EMERGENCY DECLARATION AND IMMEDIATE OVERWEIGHT LANDING AT DEP ARPT.

Narrative: DEPARTED ZZZ AT 500 FT; HEARD CHIMES IN CABIN; GOT CALL FROM FLT ATTENDANTS; SMELLED ELECTRICAL SMOKE AND SAW FAINT SMOKE IN UPPER CABIN. EMER DECLARED; TURNED DOWNWIND; LANDED OVERWT; PERFORMED A LITTLE OF QRH THAT TIME ALLOWED. COMPLETED BEFORE LNDG CHKLIST; SMOKE DISSIPATED; TAXIED TO GATE.

Data retrieved from NASA's ASRS site as of January 2009 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.