FDNY Dispatch in a nutshell... (long)
A quickie nutshell on FDNY Dispatch Policy. (kinda long) The WTC incident was something like "2nd alarm over and above the 2 5th alarms already called out" Quote and info from
http://www.fdnewyork.com
1 Engine
* brush fires
* outside rubbish fires
* downed wires
* residential refrigerant leaks
* CFR runs
* medical alert central station alarms
* other non-structural outside fires
1 Ladder
* water leaks
* downed trees/limbs blocking the street
* loose or hanging cornice
* stuck occupied elevators
* lock ins/outs
* other incidents where ladders or tools may be needed
1 Engine + 1 Ladder
* car fires
* struck pedestrian
* vehicle collisions
* elevated railroad ties (el ties)
* automatic alarms (CO, smoke, fire) in a private residence
* gasoline leaks on the street
* any other incident occurring on a street
* any incident where both units may be needed (i. e. , stuck elevator with a injured passenger)
Box Transmission
* report of a structural fire
* mechanical street box activation
* natural gas leaks
Response to certain 10 codes and signals
10-75 (code for a working fire)
* 4 engines
* 3 ladders
* 2 battalion chiefs
* 1 rescue if available
* 1 squad if available
Signal 7-5 (using all hands)
* 4 engines
* 3 ladders
* 2 battalion chiefs
* 1 rescue
* 1 squad
* 1 deputy chief
* 1 RAC unit
Second alarm (signal 2-2)
* 8 engines
* 5 ladders
* 4 battalion chiefs
* 1 rescue
* 1 squad
* 1 deputy chief
* 1 RAC unit
* 1 satellite
* safety battalion
* SOC battalion
* 1 tactical support unit
* field comm
Third alarm (signal 3-3)
* 12 engines
* 7 ladders
* 5 battalion chiefs
* 1 rescue
* 1 squad
* 1 deputy chief
* 1 RAC unit
* 1 satellite
* safety battalion
* SOC battalion
* 1 tactical support unit
* field comm
* mask service unit
Fourth alarm (signal 4-4)
* 16 engines
* 9 ladders
* 5 battalion chiefs
* 1 rescue
* 1 squad
* 1 deputy chief
* 1 RAC unit
* 1 satellite
* safety battalion
* SOC battalion
* 1 tactical support unit
* field comm
Fifth alarm (signal 5-5)
* 20 engines
* 11 ladders
* 5 battalion chiefs
* 1 rescue
* 1 squad
* 1 deputy chief
* 1 RAC unit
* 1 satellite
* safety battalion
* SOC battalion
* 1 tactical support unit
* field comm
All subsequent alarms, add:
* 4 engines
* 2 ladders