A C-208 captain reported eye irritation and breathing difficulty after using tks in flight. The flui...

Attributes
ACN	1225857
Time
Date	201412
Local Time Of Day	1201-1800
Environment
Flight Conditions	IMC
Light	Dusk
Aircraft 1
Make Model Name	Caravan 208B
Flight Phase	Cruise
Flight Plan	IFR
Component
Aircraft Component	De-Icing Fluid
Person 1
Function	Pilot Flying Captain Check Pilot
Qualification	Flight Crew Air Transport Pilot (ATP)
Events
Anomaly	Aircraft Equipment Problem Less Severe Flight Deck / Cabin / Aircraft Event Smoke / Fire / Fumes / Odor Inflight Event / Encounter Weather / Turbulence

Narrative:

Preflighted tks system prior to flight into possible icing. Ramp personnel complained of tks fluid chemical odor at plane. Prior to climbing into cloud layer (OAT 0*C +/-) turned on tks anti ice system in 'normal' mode for possible icing. Flight continued in and out of rain/snow mix. Heater off; all vents closed. Noted tks odor in cockpit; burning of eyes; throat irritation; and slight difficulty breathing. Noted although forward side vents closed still had airflow entering cockpit and flappers closed but pointed up directing air into eyes. Then noted strong air flow entering cockpit through closed cockpit side window; air entering through rear seal on window. Aircraft is not pressurized so it is not air tight thus tks mist entering cockpit.

Original NASA ASRS Text

Title: A C-208 Captain reported eye irritation and breathing difficulty after using TKS in flight. The fluid seemed to enter through the closed cockpit side window's rear seal.

Narrative: Preflighted TKS system prior to flight into possible icing. Ramp personnel complained of TKS fluid chemical odor at plane. Prior to climbing into cloud layer (OAT 0*C +/-) turned on TKS anti ice system in 'Normal' mode for possible icing. Flight continued in and out of rain/snow mix. Heater off; all vents closed. Noted TKS odor in cockpit; burning of eyes; throat irritation; and slight difficulty breathing. Noted although forward side vents closed still had airflow entering cockpit and flappers closed but pointed up directing air into eyes. Then noted strong air flow entering cockpit through closed cockpit side window; air entering through rear seal on window. Aircraft is not pressurized so it is not air tight thus TKS mist entering cockpit.

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.

A C-208 captain reported eye irritation and breathing difficulty after using tks in flight. The fluid seemed to enter through the closed cockpit side window's rear seal.