STC SA00035SE

United States of America Department of Transportation Federal Aviation Administration Supplemental Type Certificate Number: SA00035SE This certificate issued to: Aviadesign, Inc.

Purt 3 of the CiVil Air Regulations. * Original Product - Type bertificate Number: 6A1 Make: Twin Commander Model: 5005 Description of Type Design Change: Installation of wing front lower spar cap replacement an reinforcement kit in accordance with Aviadesign Inc., Drawing AD-AC-0191, Revision C, dated August 16, 1993, or later FAA approved revision.

Limitations and Conditions: Approval of this change in type design applies to the above model aircraft only. This approval should not be extended to other aircraft of this model on which other previously approved modifications are incorporated unless it is determined that the relationship between this change and any of those other previously approved moditications, including changes in type design, will introduce no adverse effect upon the airworthiness of that aircraft. A copy of this Certificate must be maintained as part of the permanent records for the modified aircraft.

Date of Application: August 9, 1993 Jule missued:

Date of Issuance: November 11, 1993 Date Amended:

FEDERAL AVIATION By diretion of The lagninistraler (Signature ) TMINISTRATOS Manager, Special Certification Branch Seattle Aircraft Certification Office (Title)

47.