Narrative:

On initial climb after takeoff from runway 27R passing approximately 2000 ft; one of the flight attendants called and said the cabin was full of smoke and the 2 lavatory smoke detectors were going off. We could smell the odor but had no smoke in the cockpit. We declared an emergency; executed appropriate checklists; and returned for an overweight landing. The smoke in the cabin never got any worse than it was initially when flight attendant called. The odor of the smoke was a musty smell and more dense in the aft part of the cabin. We suspected a problem with a pack. This aircraft had a history of smoke in the cabin and had returned to departure airport the day before. The maintenance history reflected work had been done to one of the packs.

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Original NASA ASRS Text

Title: B737-300 FLT CREW DECLARES AN EMER AND DIVERTS AFTER EXPERIENCING SMOKE IN THE CABIN AND 2 LAVATORY SMOKE DETECTORS GOING OFF.

Narrative: ON INITIAL CLB AFTER TKOF FROM RWY 27R PASSING APPROX 2000 FT; ONE OF THE FLT ATTENDANTS CALLED AND SAID THE CABIN WAS FULL OF SMOKE AND THE 2 LAVATORY SMOKE DETECTORS WERE GOING OFF. WE COULD SMELL THE ODOR BUT HAD NO SMOKE IN THE COCKPIT. WE DECLARED AN EMER; EXECUTED APPROPRIATE CHKLISTS; AND RETURNED FOR AN OVERWT LNDG. THE SMOKE IN THE CABIN NEVER GOT ANY WORSE THAN IT WAS INITIALLY WHEN FLT ATTENDANT CALLED. THE ODOR OF THE SMOKE WAS A MUSTY SMELL AND MORE DENSE IN THE AFT PART OF THE CABIN. WE SUSPECTED A PROB WITH A PACK. THIS ACFT HAD A HISTORY OF SMOKE IN THE CABIN AND HAD RETURNED TO DEP ARPT THE DAY BEFORE. THE MAINT HISTORY REFLECTED WORK HAD BEEN DONE TO ONE OF THE PACKS.

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.