The FDNY response to JFK & LGA crash boxes (#269/#37) are automatic second alarm assignment of engine & ladder companies (8 & 5), but a third alarm response for chiefs & special units. FDNY policy calls for them to setup to resupply the crash trucks with water. These crash trucks travel at 60 mph with in a minute from a dead stop, FAA requirement. They only carry enough water for anywhere between 90 seconds to 3 minutes (max) of operation. Runways are no longer foamed before a landing.
PAPD uses AFFF foam, for years FDNY did not have a large amount of AFFF foam on hand. So FDNY stopped sending their foam units on these boxes.
Why crash firefighters do not want ?nearby? departments on the field is because the average firefighter is not aware of where they can safely cut into an aircraft in case there is a crash. Military aircraft are marked, civilian aircraft are not. Remember there are oxygen lines running along the cabin of these birds besides electrical lines, & fuel or oil lines. The batteries are also dangerous. In cases with aircraft on fire there is always a good chance of firefighters being faced with a Class D fire.
I was an Air Force Firefighter for a while at a base that was home to over 100 bombers & about 30 tankers back in the mid-60?s. The base also housed an air guard unit with fighters, a civilian airport, besides commercial air traffic. We had four stations & three of these stations housed both structure & crash units. Back then a crash truck could carry a crew of 5, but we were lucky to have two on board. The second guy would be used to operate a hand line & also perform rescue operations. The driver operated under truck nozzles, bumper nozzles, & roof turrets all from the driver?s seat. These trucks were equipped with two heavy duty booster lines. Yes, you can use these vehicles to fight a structure fire too. There were equipped with regular firefighting equipment. There was one vehicle that just had CO2 on board as an extinguishing agent. Pickup trucks carried Purple-K in a pressurized tank. We had a light duty rescue truck, manned by either one or two guys. Structure pumpers ran with 1 to 3 guys if you were lucky. Sometimes only one. Our main station was ?L? shaped. Five crash bays & three structure bays. The other stations had either three or four bays each. We had no Ladder rigs. I think Wright-Patterson AFB near Dayton, Ohio was the first to get a ladder truck. Today, bases have quints as ladder units. Rescue trucks are medium size, & they even have Haz-mat rigs. One of our first jobs was to cut the battery line & to safe guard weapon controls & ejection seat triggers if we had an aircraft incident.
We played around with using an aircraft deicer. It?s a snorkel that can discharge a chemical to stop an aircraft from icing. We had used it a few times for hanger fires & rescue operations. If we received mutual aid from the city department, (paid dept.) it was only to help resupply the crash trucks with water. The city never came out to the base to learn how to drive or operate in an airport environment. I have been out driving the taxi-ways & runways of JFK, you can easily make a wrong turn onto an active runway. You cannot cross a taxiway or a runway without the tower?s permission. Crash rigs in some cases have a radio in them so that they can communicate with the tower.