Caravan 208B
Flight Crew Air Transport Pilot (ATP)
Physiological - Other
Flight Deck / Cabin / Aircraft Event Illness / Injury
General Physical Injury / Incapacitation
Aircraft; Human Factors
Maintenance asked that I check the TKS system to see if the cockpit sealing procedures were effective. The onset of my typical TKS fume/vapor reaction was delayed several minutes; but I experienced the same symptoms as previous TKS exposure events. Headache; general fatigue; slight nausea; throat irritation; breathing restriction and lightheadedness. The lightheadedness and feeling jittery precluded me from driving for about 30 minutes. After reviewing the Material Safety Data Sheet for TKS which advises seeking medical attention; I went to Urgent Care. By the time a Doctor could see me the chest burning sensation had subsided. The Dr. noted throat irritation; but clear lungs. This was about 2 hours after the onset of symptoms in the aircraft. Always use the oxygen mask when using TKS. Don't even test the system without first donning the mask.
A C208 pilot is asked by Maintenance to use the TKS anti icing system in flight to see if the cockpit sealing procedures were effective. They were not and the reporter develops the typical TKS exposure symptoms; headache; general fatigue; slight nausea; throat irritation; breathing restriction and lightheadedness.