SR-Series Workbook ___________________________________________________
Cirrus Aircraft, Duluth, MN
8. How often should the system be run to prevent the porous panel
membranes from drying out?
Hint: Pre-flight procedures for the ice protection system are
not listed on the standard paper or MFD checklists, but are in
the supplements section of the POH. Additional attention
should be given to operation and pre-flight of the system
ensuring it is primed, especially when flying into instrument
conditions or precipitation.
9. During preflight weather analysis, what weather product(s) will
help a pilot to determine icing potential along your route of flight?
10. If icing conditions are encountered in cruise, what actions should
the pilots take?
11. What is the definition of “known icing”?
Note: This answer is not in the POH. This is an important
issue; Cirrus recommends that you do further reading about
icing at the following websites:
AOPA: Safety Advisors
o http://www.aopa.org/asf/publications/advisors.html
NASA GRC Icing Branch
o http://aircrafticing.grc.nasa.gov
AVweb: Aviation Magazine and News Service
o http://www.avweb.com/news/airman/181877-1.html