STC SR02629LA

This Certificate issued to Aerometals Inc.

3920 Sandstone Drive El Dorado Hills, CA 95762 Part 29 of the Federal Aviation Regulations.

R00024BO

Sikorsky

S-92A Description of Type Design Change: Installation of Engine Inlet Barrier Filter System in accordance with Aerometals Master Drawing List 1092-MDL-1, Rev. “E”, dated December 7, 2015, or later FAA approved revision. Instructions for Continued Airworthiness (ICA) 1092-ICA-1, Rev. “NC”, dated April 27, 2016, or later FAA accepted revision; and FAA Approved Rotorcraft Flight Manual Supplement (RFMS) 1092- RFMS-1, dated January 24, 2017, or later FAA approved revision are required and must be made available to the operator at the time of installation.

Limitations and Conditions: The installation should not be incorporated in any rotorcraft unless it is determined that the interrelationship between this installation and any previously approved configuration will not introduce any adverse effect upon the airworthiness of the rotorcraft. If the holder agrees to permit another person to use this certificate to alter the product, the holder must give the other person written evidence of that permission. (See continuation sheet on Page 3)

Date of application : March 13, 2012

Date of issuance : January 31, 2017

(Signature) Manager, Propulsion Branch Los Angeles Aircraft Certification Office (Title)

United States Of America Department of Transportation - Federal Aviation Administration Supplemental Type Certificate (Continuation Sheet) SR02629LA

Revision Log:

Page No. 1 2 3 Rev. No. - - -

Limitations and Conditions – continued:

For this installation, the Power Assurance Procedure has been revised for both Ground and Inflight procedures (See Rotorcraft Flight Manual Supplement 1092-RFMS-1, dated January 24, 2017, or later FAA approved revision) as described below:

Ground Power Assurance:

The pass/fail criteria revises the temperature margin from 5o to 11o.

Inflight Power Assurance:

The airspeed for the stabilized, level flight condition requires the minimum speed be revised from 80 KIAS to 115 KIAS.

- END -

United States Of America Department of Transportation - Federal Aviation Administration Supplemental Type Certificate (Continuation Sheet) SR02629LA

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