STC SH5653NM

Number SH5653NM

This certificate issued to: Erickson Incorporated DBA Erickson Air-Crane 3100 Willow Springs Road Central Point, OR 97502

Part 29of the Federal Aviation Regulations.

Original Product – Type Certificate Number: See Attached FAA Approved Model List (AML)

Make: See AML Model: See AML Description of Type Design Change:

Re-mounting of the turbine engines and reinforcement of the associated fuselage support structure with Erickson Detuned Engine Mounting System (DEMS). Manufacturing and Installation: See Approved Model List. Operation and Installation: In accordance with Erickson Air- Crane Maintenance Manual, Publications No. EAC016, Revision 4, dated March 7, 2014, or later FAA accepted revision for Models S-64E, S-64F, CH-54A and CH-54B.

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

Date of application: August 14, 1991 Date reissued: 08/22/97; 03/01/01; 08/13/14 Date of issuance: November 22, 1991 Date amended: 03/12/93; 01/07/97; 03/01/01; 08/05/02

Signature Scott A. Horn

Title Manager, Rotorcraft Certification Office, Southwest Region

FAA Form 8110-2 (8/13) Page 1

SUPPLEMENTAL TYPE CERTIFICATE, FAA FORM 8110-2 (CONTINUED)

To (Name of transferee)

(Address of transferee)

(Number and street)

(City, State, and ZIP Code)

From (Name of grantor)

(Address of grantor)

(Number and street)

(City, State, and ZIP Code)

FAA Form 8110-2 (8/13) Page 2