TKS Fluid Used By CAV Aerospace Systems Is Safe

TKS Fluid Used By CAV Aerospace Systems Is Safe

TKS Fluid Used By CAV Aerospace Systems Is Safe



CAV Aerospace is aware of unfounded concern raised by a recent FAA SAIB, which discussed some of the characteristics of TKS ice protection fluid. The fact is that TKS fluid used by CAV Aerospace Ice Protection Systems is safe in all ground and flight regimes. With more than 6,000 CAV systems installed on numerous piston-powered and jet aircraft, there has never been a concern with or a report about TKS flammability.



All CAV Aerospace systems installed by aircraft manufacturers, and aftermarket by CAV, incorporate the complete range of TKS fluid characteristics into their design
         Cessna
  Cirrus
  Commander Premier
  Diamond
  General Atomics
  Hawker Beechcraft
  Mooney
  Piper
  Socata EADS
  Quest
  Rockwell
   
 
   and installation. The SAIB reports on testing finished in 2008 in cooperation with CAV Aerospace that more clearly defined the fluid characteristics of TKS, which is only flammable under intense circumstances. Since that 2008 report, the FAA has certified two CAV Aerospace designed systems that utilize TKS fluid for flight into known icing – the Cirrus SR22 and Cessna Caravan – proving again that TKS is safe in all certified flight regimes. 



CAV Aerospace is proud of its unprecedented safety record and success in overcoming in-flight icing conditions for thousands of aviators and their aircraft. For further information on TKS Ice Protection systems go to www.weepingwings.com. The FAA said that use of TKS fluid is not considered an unsafe condition that would warrant an airworthiness directive. The FAA report’s summary conclusions are reprinted below in their entirety.



SUMMARY

As expected, TKS anti-icing fluid is flammable under the correct conditions. The flash point of the fluid is much greater than reported in the MSDS, but is still relatively low (~150°F), and appears to have a very low energy release when reacting. The fluid will burn when heated in a pan to approximately 250°F and subjected to an ignition source, but burns relatively cool. When dripped onto a hot surface, the fluid does not react but will probably display relatively violent characteristics if heated in a confined space above 750°F (approximate autoignition temperature). The fluid mist will burn at ambient temperature and pressure, but will not sustain a reaction when the ignition source is removed. Only sporadic ignitions (no fireball) were observed when the mist was ignited with a spark, and these were confined to small patches of mist close to the center of the spray.



For the complete report go to http://www.fire.tc.faa.gov/pdf/TN08-9.pdf.

Dan Weiler
Executive Director of the Cessna Owner Organization
(715) 445-5000, ext. 116
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Daniel
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