STC SA220SO

(See Continuation Sheet Page 3 of 3 Pages) SA220SO Fliegen Works Inc.

Dba Pacific Aerial Tow Hooks 921 SE 47th Ave Portland, OR 97215 * * Approval of this change in type design applies to the aircraft listed on AML SA220SO only. This approval should not be extended to other aircraft of these models on which other previously approved modifications are incorporated unless it is determined by the installer that the relationship (see continuation sheet) June 7, 1962 January 22, 1971; February 9, 1971; October 3, 2011; February 1, 2017 August 2, 1962 July 8, 1963; September 23, 1963; November 8, 2017;

June 28, 2021 For Manager, Seattle ACO Branch 3 Approval of this change in type design applies to the aircraft listed on AML SA220SO only. This approval should not be extended to other aircraft of these models on which other previously approved modifications are incorporated unless it is determined by the installer that the relationship (see continuation sheet) * See attached Federal Aviation Administration (FAA) Approved Model List (AML) SA220SO for approved aircraft models and applicable airworthiness regulations.

SA220SO 3

End SA220SO Limitations and Conditions (continued):

between this change and other previously approved modifications will introduce no adverse effect upon the airworthiness of that aircraft. A copy of this certificate, AML SA220SO, the applicable installation drawing as listed on AML SA220SO, and the ICA must be maintained as part of the permanent records for the modified aircraft. This approval is for installation of a tow hook, tow bar, and safety link only; additional approvals are required for installing a release mechanism and for operating the aircraft as a tow plane.

If the holder agrees to permit another person to use this certificate to alter the product, the holder shall give the other person written evidence of that permission.