STC SA01627WI

This certificate issued to: Sioux Center Aviation 3028 360th Street Sioux Center, IA 51250

Part 23* of the Federal Aviation Regulations.

Make: *See attached AML No. SA01627WI Model:

Description of Type Design Change: Installation of replacement gas spring door stays on the forward and/or rear cabin doors in accordance with Sioux Center Aviation Drawing List 65DL, Revision C, dated October 18, 2010 or later FAA-approved revisions.

1. Approval of this change in type design applies only to the aircraft listed in AML No. SA01627WI.

2. The installer must determine whether this design change is compatible with previously approved modifications.

3. 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.

4. Instructions for Continued Airworthiness (ICA), Sioux Center Aviation Document No. Sioux-ICA, Revision IR, dated July 30, 2010 or later FAA-accepted revisions must be made available to the operator at the time of installation.

Date of application: April 18, 2007

Date of issuance: April 4, 2011

Original signed by William Schinstock

( Signature) William Schinstock Branch Manager Wichita Aircraft Certification Office

( Title)