STC ST10209SC

United States of America Department of Transportation_Federal Aviation Administration Supplemental Type Certificate Number ST10209SC This certificate, issued to: AeroMech Incorporated 1616 Hewitt Avenue, Suite 312 Everett, WA 98201 Part 4b of the Civil Air Regulations.

Original Product⎯Type Certificate Number: See attached Approved Model List (AML) Make: ST10209SC, Rev. NEW or later FAA approved Model: revisions for a list of approved airplane models, applicable installation data requirements, and specific and applicable airworthiness requirements.

Description of the Type Design Change: Installation of dual Innovative Solutions and Support (IS&S) Air Data Display Units (ADDU) in accordance with AeroMech Master Drawing List (MDL) as referenced on the attached FAA AML, or later FAA approved revisions.

Limitations and Conditions: Compatibility of this design change with previously approved modifications must be determined by the installer. This STC certifies the installation of dual IS&S ADDU’s in aircraft with substantially the same static system.

Use of the model-specific FAA approved Airplane Flight Manual Supplement listed in the AML or later FAA approved revision, is required on board for operation of the aircraft.

Descriptive data pertaining to this design change are considered inadequate for duplication on other products.

This approval is limited to the aircraft models listed in the AML only.

A copy of this certificate and a copy of the FAA AML must be maintained as part of the permanent records of the modified aircraft. If the holder agrees to permit another person to use this certificate, the holder shall give the other person written evidence of the permission.

Certification Basis: 14 CFR Part 25 Amendment 109 and Special Conditions 25-254-SC

Date of application: August 29, 2003 Date reissued:

Date of issuance: December 17, 2003 Date amended: April 5, 2005

(Signature)

Acting Manager, Seattle Aircraft Certification Office (Title)

130S-05-160 2