Narrative:

Climbing through 23000 ft, flight attendant reported a very loud bang and vibration coming from beneath the aft galley floor. Shortly thereafter, it was reported that there was a strong smell of sulfur in the aft cabin. Declared emergency, called company operations and returned to ewr for an overweight landing.

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Original NASA ASRS Text

Title: B737 FLT ATTENDANT RPTED A LOUD BANG BELOW THE AFT GALLEY AND THE PRESENCE OF A STRONG SULFUR SMELL.

Narrative: CLBING THROUGH 23000 FT, FLT ATTENDANT RPTED A VERY LOUD BANG AND VIBRATION COMING FROM BENEATH THE AFT GALLEY FLOOR. SHORTLY THEREAFTER, IT WAS RPTED THAT THERE WAS A STRONG SMELL OF SULFUR IN THE AFT CABIN. DECLARED EMER, CALLED COMPANY OPS AND RETURNED TO EWR FOR AN OVERWT LNDG.

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.