STC SR00258DE

United States of America Department of Transportation Federal Aviation Administration Supplemental Type Certificate Number: SR00258DE This certificate issued to: Air Methods, LLC 5500 South Quebec Street Suite 300 Greenwood Village, CO 80111 Part 29 of Title 14 of the Code of Federal Regulations Original Product Type Certificate Number: H4S W Make: Bell Textron Inc.

Description of Type Design Change: Model: 412, 412EP Installation of an Articulating Patient Loading System in accordance with Master Drawing List, Air Methods Document Number 141-9024, Revision (-) dated September 13, 1996, or later FAA approved revision.

1. The installer must determine whether this design change is compatible with previously approved modifications.

Limitations and Conditions: continued on Page 3 of 3)

Date of Application: 02/01/1996 Date Reissued: 08/27/2025 Date of Issuance: 10/30/1996 Date Amended: 01/30/2017 see continuation sheet for additional dates By Direction of the Administrator Signature: ACIN Title: Joe B. Carrier, ODA administrator Air Methods, LLC, ODA-635841-NM The ST's supporting documentation (drawings, instructions, specifications, flight manual supplements, etc.) is the property of the STC holder.

United States of America Department of Transportation Federal Aviation Administration Supplemental Type Certificate Number: SRO0258DE Effective Date: 08/27/2025

From (Name and address of grantor);

United States of America Department of Transportation Federal Aviation Administration Supplemental Type Certificate (Continuation Sheet) Number: SR00258DE Effective Date: 08/27/2025 Limitations and Conditions: (Continued):

2. A copy of this certificate must be maintained as part of the permanent records for the modified rotorcraft.

3. A copy of Rotorcraft Flight Manual Supplement RFMS 080-0208, Rev (-), dated October 30, 1996 or later FAA approved revision must be maintained as part of the permanent records for the modified rotorcraft.

4. FAA accepted Instructions for Continued Airworthiness (ICA) AMMS 050-0209, Rev (-), dated September 2, 1996 or later FAA accepted revision must be made available to the operator at the time of installation.

5. If the holder agrees to permit another person to use this certificate to alter a product, the holder must give the other person written evidence of that permission.

Certification Basis:

Based on 14 CFR §§ 21.115 and 21.101, and the FAA policy for significant changes in FAA Order 8110.48, the certification basis for the Bell Textron Inc. Model 412, 412EP installation of an Articulating Patient Loading System is as follows:

a. The type certification basis for Bell Textron Inc. 412, 412EP is shown on TCDS H4SW for parts not changed or not affected by the change.

b. The certification basis for parts changed or affected by the change since the reference date of application, February 1, 1996, is based upon part 29 as amended by Amendment 29-37. Based on 14 CFR §§ 21.115 and 21.101, and the FAA policy for significant changes in FAA Order 8110.48, the certification basis for this modification was determined to be:

Regulations at the latest amendment level -NONE Regulations at an intermediate amendment level -NONE Regulations at the amendment level in TCDS H4SW -ALL END-