When a Sandel Avionics SN3308 Navigation Display is installed in the Cirrus Design SR20, serials 1005 through 1267 this Supplement is applicable and must be inserted in the Supplements Section (Section 9) of the applicable Cirrus Design SR20 Pilot’s Operating Handbook. This supplement is not included with the purchase of a POH and must be ordered separately. Note: This item is drop-shipped to you directly from our vendor.