STC SH7054NM

This Certificate issued to Heli-Support, Inc.

120 N.E. Frontage Road Ft. Collins, Colorado 80524 Part 27 of the Federal Aviation Regulations.

**See Attached FAA Approved Model List *(AML) No. SH7054NM for list of approved *helicopter models and approved airworthiness regulations Description of Type Design Change: Installation of a skid toe mounted convex mirror for sling load operations in accordance with Heli-Support, Inc. installation instructions as listed on AML No.

SH7054NM or later FAA approved revision.

Limitations and Conditions: The 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 approved modifications are incorporated, unless it is determined that the interrelationship between this change and any of those other previously approved modifications will introduce no adverse effect upon the airworthiness of that aircraft. A copy of this certificate and FAA approved model list (AML) No. SH7054NM, dated January 26, 1994, must be maintained in the permanent records of a helicopter modified in accordance with this STC. (See Continuation page) This certificate and the supporting data, which is the basis for approval, shall remain in effect until surrendered, suspended, revoked or a termination date is otherwise established by the Administrator of the Federal Aviation Administration.

Date of application : August 7, 1991

Date of issuance : January 26, 1994

Date reissued: August 6, 2004; October 31, 2006

( Signature)

Manager, Technical & Administrative Support Staff, Los Angeles Aircraft Certification Office ( Title)

Number SH7054NM

Limitations and Conditions (Continued)

A helicopter modified by this installation may not be operated with any other external mirror installed. 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.

Noise Characteristics Statement For Heli-Support, Inc.

Skid Mounted Mirror

NOTE 1. Noise characteristics: This modification has been determined not to increase the noise level and is not considered an “acoustical change” as defined in Paragraph 21.93(b), Amendment 21-70 of the Federal Aviation Regulations.

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