STC SR02728LA

Number SR02728LA

This Certificate issued to Coulson Aviation (USA) Inc.

655 South Rock Blvd.

Reno, NV 89502 Part 29* of the Federal Aviation Regulations. * see continuation sheet for certification basis Original Product Type Certificate Number :

** See attached FAA Approved Model List (AML) No. SR02728LA for list of approved rotorcraft model Description of Type Design Change: Installation of Retardant Aerial Delivery System Large (RADS-L) for the special purpose of Forest and Wildlife Conservation on rotorcraft model approved in the AML in accordance with the Master Drawing List (MDL), Rotorcraft Flight Manual Supplements (RFMS) and Instructions for Continued Airworthiness (ICA) noted in AML SR02728LA.

Limitations and Conditions: The approval of this modification applies to the model listed on FAA approved AML SR02728LA only. This installation should not be extended to other specific rotorcrafts of this model series 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 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.

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: September 12, 2019

Date of issuance: June 16, 2020

(Signature) Manager, Airframe Section Los Angeles ACO Branch (Title)

Transfer the ownership of Supplemental Type Certificate Number

to (Name of transferee)

(Address of transferee) (Number and street)

(City, State, and ZIP Code)

from (Name of grantor) (Print or type)

(Address of grantor) (Number and street)

(City, State, and ZIP Code)

Signature of grantor (In ink):

Certification Basis:

For areas unaffected by this modification, see the applicable TCDS listed in AML SR02728LA

For areas affected by this modification:

Regulations, which include amendments 29-0 through 25-57 14 CFR: 29.21, 29.29, 29.143, 29.171, 29.301 - 29.307, 29.601 - 29.613, 29.625, 29.777,

29.787, 29.853, 29.865, 29.1301, 29.1309, 29.1322, 29.1351, 29.1353, 29.1357, 29.1381,

29.1435, 29.1501, 29.1523, 29.1525, 29.1529, 29.1557, 29.1559, 29.1581, 29.1583, 29.1585,

29.1589

Regulations at an intermediate amendment

29.561 Amendment 0, 29.571 Amendment 29-20