Varig 820, a 707-345C, made a forced landing three miles short of Orly in 1973 after a flight from Rio. Fire in a rear toilet, around the time they were beginning the descent. The aircraft landed gear down in a cabbage patch and remained remarkably intact. Not sure how long it took from discovery of the fire to the forced landing, over twenty minutes I think; someone with a better memory or data to hand might assist there. All but eleven of the 134 on board died. Had an emergency descent and landing anywhere been initiated earlier most would have walked off.