STC SH515AL

Fabrication and installation of "Transporter" cargo steps (left and right) in accordance with Aero Twin, Inc. Master Drawing List No. TS-B206 dated November 7, 2001, or later FAA approved revision.

This approval applies only to those Bell Models 206A and 206B rotorcraft which are fitted with BHTI high skid landing gear P/N 206-706-031, or other approved high skid landing gear configurations utilizing BHTI cross tube kit P/N 206- 050-107 or P/N 206-050-134 or a combination of forward cross tube BHTI P/N 206-050-288-101 or Aeronautical Accessories P/N 206-321-019 and aft cross tube BHTI P/N 206-050-288-107, or Aeronautical Accessories P/N 206-320-

024.

Compatibility of this design change with previously approved modifications must be determined by the installer.

The FAA approved Rotorcraft Flight Manual Supplement for Bell Model 206A Helicopter, Revision A,dated May 2 1978, or later FAA approved revision, or the FAA approved Rotorcraft Flight Manual Supplement for Bell Model 206B Helicopter, Revision B dated September 14, 1981, or later FAA approved revision, is a required part of this installation.

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.

January 06, 1994; November 07, 2001 April 22, 1974; July 26, 1974; April 04, 1975; May 02, 1978; September 14, 1981;

November 07, 2001;

February 06, 2004; August 14, 2018

(Signature) August A. Asay Manager, Anchorage ACO Branch

(Title)

H2SW Bell Helicopter Textron 206A; 206B

USA Airmobile, Inc.

4121 SW 47th Ave., Suite 1305 Fort Lauderdale, FL 33314

October 25, 1973 March 12, 1974