What was found
AT TOP OF DESCENT, SMOKE ALARMS IN F/C WENT OFF AND FLT ATTEN REPORTED A BURNING SMELL IN CABIN. SMELL LASTED ABOUT 15 SEC AND THEN SMOKE ALARMS STOPPED. FLT ATTEN REPORTED SEEING THIN WHITE SMOKE IN CABIN. F/A REPORT EYES AND THROAT VERY IRRITATED. SMOKE DISSIPATED AFTER 10 MIN. OPERATED ALL GALLEY APPLIANCES, ELEC CHKED LAV TRASH O/HEAT DETECTORS AND TRASH EXTINGUISHERS, ALL OK. CHKED ALL LIGHTING BALLASTS FOR O/HEAT, RAN ENGS W/PACKS ON, NO SMOKE OR SMELL OF SMOKE. ELEC AND A/C SYS CHK NORMAL.