STC SH3681SW

FAA Form 8110-2 (5/14) Page 1 of 2

Number: SH3681SW

Part 29 of the Federal Aviation Regulations.

Original Product – Type Certificate Number: H4SW Make: Bell Helicopter Textron Inc.

Model: 412 Description of Type Design Change:

Installation of a fixed external hoist with a Breeze-Eastern or a Lucas-Western hoist in accordance with Heli-Dyne Systems, Inc., drawing list HD 412-00-0009, Rev. P, dated 9/16/91 or later FAA approved revision.

Rotorcraft Flight Manual Supplement (RFMS) dated June 6, 1990 or later FAA approved Revision is required with the installation of the Breeze-Easter hoist. RFMS dated August 28, 1992 or later FAA approved is required with the installation of the Lucas-Western hoist. 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: January 21, 1986 Date Reissued: March 21, 1990; January 30, 2017 Date of Issuance: November 6, 1986 Date Amended: 7/22/88; 6/20/90; 10/9/91; 8/28/92 Revision 4

Signature

Title James A. Grigg Manager, Fort Worth Aircraft Certification Office, Southwest Region RSG Products 3900 Falcon Way, Hangar 16S Fort Worth, TX 76106

FAA Form 8110-2 (5/14) Page 2 of 2

Transfer the ownership of Supplemental Type Certificate Number: SH3681SW

To (Name and address of transferee)

From (Name and address of grantor)

United States of America Department of Transportation Federal Aviation Administration Supplemental Type Certificate (Continuation Sheet) Number: ST10962SC

FAA Form 8110-2 (5/14) Page 3 of 3