it happened when the jet was taxiing. someone took a wrong turn. three mechanics on board. no one was injured in the crash. here is a sign of economic times. mansions are in demand and there aren't enough for sale. in the nation's wealthiest towns, the number of mansions available is down 15%. ift's because a lot of rich people from here and overseas are in the market for big homes right now. you know what they are buying them with? cash. >> it's a big problem here in manhattan. you can't find an apartment. everybody is paying cash. >> the big report yesterday, the homes, there's not a lot of supply. inventories are at multidecade lows. people don't -- it's good for prices. there aren't a lot of houses on the market. >> that's going to change once