Robinson Helicopters began installing crash-resistant fuel tanks in 2010.  Robinson Helicopters with fuel tanks installed before then tend to catch fire during accidents that, but for the fire, would have been survivable.

The Australian authorities thought that the safer tanks were a good idea.  Enough Robinsons had caught fire after minor accidents that in 2013

Airport fire trucks must get to a burning plane within three minutes if they are going to save any lives. That’s the maximum response time allowed by the National Fire Protection Association, the organization that sets the standard for airport firefighters, including those working at U.S. Air Force bases. 

The survivable atmosphere inside an aircraft

Another Robinson R44 Helicopter rolled over and almost immediately caught fire.  This time it was at Slaton Municipal Airport in Slaton, Texas.  According to the Avalanche-Journal, the Robinson R44 firehelicopter was engulfed in flames within 10 seconds of the helicopter rolling onto its side.

Fortunately, the pilot got out.  But the R44 is racking up quite