Commercial Fixed Wing
Flight Attendant Current
Aircraft Equipment Problem Critical; Flight Deck / Cabin / Aircraft Event Smoke / Fire / Fumes / Odor
Flight Crew Diverted; Flight Crew Landed As Precaution
Aircraft; Human Factors
During the initial beverage service I went back to the aft galley to get more water.  When I got to the galley I saw smoke coming from the ovens.  I proceeded to turn off all 3 ovens and opened them to investigate.  I called up front to one of the flight attendants to tell them that I saw smoke and that I was going to investigate.  I told them to let the Purser and the pilots know what was going on.  This is when I grabbed [another Flight Attendant] to help me with the communication and to assist.  It is at this time that I pulled the oven racks out of the left hand oven after seeing flames coming from the top of the oven.  I asked for the PBE and a Halon extinguisher.  I used the PBE and 2 Halon extinguishers and put the fire out.  After taking the PBE off it was so smoky in the cabin I had to get a bottle of oxygen and administer oxygen to myself in order to breathe.  The cabin was also very full of the Halon gas.  My eyes stung and I could not keep them open nor could I breathe.  We landed in ZZZZ and later deplaned.
Flight Attendant reports discovering smoke coming from an oven in the aft galley. The smoking oven is opened and sprayed with two Halon fire extinguishers while using a PBE. A great deal of smoke is generated and the flight diverts to the nearest suitable airport.