STC SR03371CH

This certificate issued to National Aircraft Service, Inc. (NASI) 9133 Tecumseh-Clinton Rd.

Tecumseh, MI 49286

Part * of the * Regulations

Installation of NASI Supplemental Air Conditioning Module in accordance with NASI Installation Instructions NTEK200-26, Rev NC, dated May 5, 2014, or later FAA-approved revisions.

1. Compatibility of the design change with previously approved modifications must be determined by the installer.

2. A copy of this Certificate and FAA Approved Model List (AML) No. SR03371CH, Revision None, dated August 21, 2014, or later FAA-approved revisions, must be maintained as part of the permanent records for the modified rotorcraft.

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. Rotorcraft Flight Manual Supplement NTEK26AFMS, Revision NC, dated August 5, 2014, or later FAA-approved revision, is required on board the modified rotorcraft.

Date of application : February 17, 2011

Date of issuance : August 21, 2014 Date amended :

(Signature) Steven L. Lardinois Manager, Systems & Flight Test Branch Chicago Aircraft Certification Office

(Title) *See attached FAA Approved Model List (AML) No. SR03371CH for list of approved rotorcraft models and applicable airworthiness regulations.