STC SR02753LA

United States of America Department of Transportation Federal Aviation Administration Supplemental Type Certificate FAA Form 8110-2 (4/20) SUPERSEDES PREVIOUS EDITION Page 1 of 3

Number: SR02753LA Aerometals Inc.

3920 Sandstone Drive El Dorado Hills, California 95762 Part * of Federal Aviation Regulations.

Original Product Make: * Type Certificate Number: * * See Approved Model List (AML) SR02753LA for approved aircraft models and applicable airworthiness regulations. Model: *

Description of Type Design Change: Installation of an engine Inlet Barrier Filter (IBF) system in accordance with the FAA approved Master Drawing List (MDL), listed on AML SR02753LA, dated April 16, 2021, or later FAA approved revision. Instructions for Continued Airworthiness (ICA) and FAA Approved Rotorcraft Flight Manual Supplement (RFMS) listed on the FAA Approved AML SR02753LA are required and must be made available to the operator at the time of installation.

Limitations and Conditions: Approval of this modification applies only to the model aircraft listed in AML SR02753LA. This approval should not be extended to other specific aircrafts of this model series on which other approved modification are incorporated, unless it is determined that the interrelations between this change and any of those other previously approved modifications will introduce no adverse effect upon the airworthiness of the aircraft. 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. A copy of this STC must be included in the permanent records of each aircraft modified in accordance with STC. See continuation sheet 3.

Date of Application: August 29, 2019 Date Reissued:

Date of Issuance: April 16, 2021 Date Amended:

Title: Manager, Propulsion Section Los Angeles ACO Branch

United States of America Department of Transportation Federal Aviation Administration Supplemental Type Certificate FAA Form 8110-2 (4/20) SUPERSEDES PREVIOUS EDITION Page 2 of 3

Number: SR02753LA

United States of America Department of Transportation Federal Aviation Administration Supplemental Type Certificate FAA Form 8110-2 (4/20) SUPERSEDES PREVIOUS EDITION Page 3 of 3

(Continuation Sheet) Number: SR02753LA

Effective: April 16, 2021

Limitations and Conditions – continued:

This STC is limited to those restricted category helicopters that are used exclusively for the special purposes listed in 14 CFR 21.25 (b)(1),(2) or (7) only:

§ 21.25(b) (1) Agriculture Operations § 21.25(b) (2) Forest & Wildlife Conservation § 21.25(b) (7) External Loads

Note: In accordance with § 36.1(a)(4), compliance with the noise requirements for these special purpose operations was not shown.

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