STC SH390NW

United States of America Department of Transportation_Federal Aviation Administration Supplemental Type Certificate Number SH390NW

This certificate, issued to Measurement Systems International, Inc.

14240 Interurban Avenue South Seattle, WA 98168 Part * of the * Regulations.

Original ProductType Certificate Number: *See attached Aproved Model List (AML) No.

Mak e: SH390NW for a list of approved rotorcraft models Model: and applicable airworthiness regulations.

Description of the Type Design Change: Installation of an electronic weighing system, for monitoring cargo hook weight, in accordance with Measurement Systems International, Inc., Installation drawing No. D00327, Sheets 1 and 2, or Drawing D00473, Rev. E.

Limitations and Conditions: Approval of this change in type design applies to the above model rotorcraft only. This approval should not be extended to other rotorcraft of this model on which other previously approved modifications are incorporated unless it is determined by the installer that the relationship between this change and any of those other previously approved modifications, including changes in type design, will introduce no adverse effect upon the airworthiness of that rotorcraft. A copy of this certificate and the Rotorcraft Flight Manuel Supplement, dated April 19, 1977, or later FAA approved revision, must be maintained as part of the permanent records for the modified rotorcraft.

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.

Date of application: November 6, 1975 Date reissued: April 19, 1977 Date of issuance: January 3, 1977 Date amended: December 4, 1980; April 28, 2004

(Signature)

Acting Manager, Seattle Aircraft Certification Office (Title)