A C208B instructor reported the tks fluid vaporization increases in high OAT conditions and the effe...

Narrative:

Outside air temperature 90 [degrees] F+. While on a training flight in tks fluid equipped caravan. Tks anti-ice system was turned on for 3-5 minutes for a demo. As soon as tks turned on both pilots noted a chemical odor in cockpit; and pilot flying immediately began coughing (severe) uncontrollably and complained of difficulty breathing. Non pilot flying had immediate reaction to tks also; difficulty breathing; throat irritation; nausea; and eventually vomited after flight. Both pilots were 'sticky' after flight. Every pilot has noticed tks fluid dripping into the cabin vent intake at the top of the strut; immediately below the tks panel; and tks fluid (hazmat) is contaminating the cockpit and crew. Extreme heat appears to make vaporization worse. When you open parked aircraft door; you are overwhelmed with chemical odor from tks fluid (a hazmat). Tks fluid msds warns about exposure to fluid and vapor. One of the warnings of breathing tks fluid vapor is a narcotic effect. Crews are noticing health effects from the tks that are not dissipating after repeated exposure. This is a very dangerous system and crews are being exposed to hazmat contamination; health; and safety issues every time this aircraft is flown.

Original NASA ASRS Text

Title: A C208B instructor reported the TKS fluid vaporization increases in high OAT conditions and the effects are not dissipating after repeated exposure. The reporter became nauseous and vomited after flight.

Narrative: Outside air temperature 90 [degrees] F+. While on a training flight in TKS fluid equipped Caravan. TKS anti-ice system was turned on for 3-5 minutes for a demo. As soon as TKS turned on both pilots noted a chemical odor in cockpit; and pilot flying immediately began coughing (severe) uncontrollably and complained of difficulty breathing. Non pilot flying had immediate reaction to TKS also; difficulty breathing; throat irritation; nausea; and eventually vomited after flight. Both pilots were 'sticky' after flight. Every pilot has noticed TKS fluid dripping into the cabin vent intake at the top of the strut; immediately below the TKS panel; and TKS fluid (HAZMAT) is contaminating the cockpit and crew. Extreme heat appears to make vaporization worse. When you open parked aircraft door; you are overwhelmed with chemical odor from TKS fluid (a hazmat). TKS fluid MSDS warns about exposure to fluid and vapor. One of the warnings of breathing TKS fluid vapor is a narcotic effect. Crews are noticing health effects from the TKS that are not dissipating after repeated exposure. This is a very dangerous system and crews are being exposed to hazmat contamination; health; and safety issues every time this aircraft is flown.

Data retrieved from NASA's ASRS site and automatically converted to unabbreviated mixed upper/lowercase text. This report is for informational purposes with no guarantee of accuracy. See NASA's ASRS site for official report.

Attributes
ACN	1168871
Time
Date	201405
Local Time Of Day	0601-1200
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Make Model Name	Caravan Undifferentiated
Operating Under FAR Part	Part 135
Flight Phase	Cruise Parked
Flight Plan	VFR
Component
Aircraft Component	Aerofoil Ice System
Person 1
Function	Captain Instructor Pilot Not Flying
Qualification	Flight Crew Air Transport Pilot (ATP)
Experience	Flight Crew Total 8000 Flight Crew Type 3000
Events
Anomaly	Aircraft Equipment Problem Less Severe Flight Deck / Cabin / Aircraft Event Illness Flight Deck / Cabin / Aircraft Event Smoke / Fire / Fumes / Odor

A C208B instructor reported the tks fluid vaporization increases in high OAT conditions and the effects are not dissipating after repeated exposure. The reporter became nauseous and vomited after flight.