It is rare for the New York City Fire Department to run out of units. We have 454 pieces of apparatus staffed full time: 203 engines, 143 ladders, 49 battalion chiefs, 9 divisions, and 50 assorted special units. Yet, on August 14, 2003, when the most widespread blackout in the country's history hit the Northeast, dispatchers in Brooklyn had more alarms than Brooklyn had units. The other four boroughs had just barely enough to hold their own...

http://www.fdnewyork.com/lightsout.asp