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     Curtis,
     
     You won't find all, if any, of the failed nylaflow incidents in the
     NTSB reports.  Unless the incident meets the criteria for reporting
     AND it was reported, you won't find anything.  
     I saw a Glasair undergoing repairs after a brake fire caused by a
     burst nylaflow brake line.  An aborted takeoff from a short field with
     the plane heavily loaded required very heavy braking.  After turning
     off the runway the heat soaked brakes melted the nyla flow tubing
     which then sprayed hydraulic fluid and led to the fire.  The plane
     ended up in the mud off the taxiway because directional control was
     lost.
     I feel more comfortable with aluminum hard lines and flexible
     hydraulic hoses where needed.  They add a huge safety factor to the
     system both in operation and in durability.
     
     Chris Zavatson
     N91CZ