Background: I recently watched the Channel5 documentary on JetBlue 292 with their famous sideways landing gear. At around the 8:00-mark you see footage of the actual landing: Main landing gear intact but nose gear twisted. It was mentioned in the documentary, that complete nose gear failure and subsequent friction and possible fire were a main concern.
This leads me to my question: When is it appropriate to foam a landing strip?
Prior to actually thinking about it, I just assumed, that whenever friction/fire was expected (damaged/retracted landing gear), one might want to foam up a runway, to provide extra cooling and fire suppression for the stricken aircraft. So, in my non-aviator-thinking, this would have been a textbook example of wheren to foam a runway. But in the documentary (7:48-8:10) it is clearly visible that there was no foam - from the point of touchdown all the way until the complete stop.
To rephrase my question in two parts:
- What is the reason for JB292's landing to be without foam?
- If the equation "Bad Landing Gear = Foam Needed" does not hold, what are the policies of when to apply foam?