the fire was most likely caused by some jackass inconsiderate smoker
it was in the trash bin in the aft lav during initial descent into syr
no damage to the aircraft, the auto halon bottle popped, the rear fa also used a portable halon, and two syr firemen that happened to be on board also poured water into the can.
the syr police questioned people in the aft of the aircraft and of course at that point no one was a smoker.
don't know the final disposition of the flight but i would imagine they cancelled the outbound and ferried back to dca depending on republics mel regarding the fire extinguishers
capt was furloughed mainline, fo was shuttle america transfer, the fa's were a couple of new hire kids, but they did a good job