What was found
DURING CLIMB F/A NOTICED A BLUEISH HAZE AND ODOR IN AFT CABIN. NR 3 AND 4 OVENS IN AFT GALLEY VERY HOT. COULD NOT TURN OFF NR 3 OVEN AND DISCHARGED HALON BOTTLE. REPORTED AFT CABIN LIGHTS COMING ON AND BRIGHT ON THEIR OWN LIKE A POWER SURGE. UNABLE TO CONTROL THEM. MTC IN PROGRESS. OPERATED NR 3 OVEN AND CHECKS NORMAL. OPERATED LIGHTS AND CHECKS NORMAL. MTC STILL T/S. DEACVT NR 3 AND 4 OVENS AS PRECAUTION. PERFORMED HIGH PWR ENG RUN TO ASSURE NO SMOKE/ODOR FROM PNEU SYS.