Surly Bondslipper,
If I'm thinking of the same Saudi incident that you mention, the fire was fuelled by a hydraulic leak in one of the cargo compartments of an L1011.
I believe the senior F/A kept pressing the Captian for instructions on post landing actions (i.e. evacuate). She was unable to get a propper response and after landing the aircraft taxied to the far side of the airport, by which time all on board had asphyxiated.
