STC SR01924AT

Number SR01924AT This certificate issued to

Part 21.25 of the Federal Aviation Regulations.

Manufacture of Low Skid or High Skid Landing Gear in accordance with Aeronautical Accessories, Inc. Drawing List Report No. AA-97134, no revision, dated November 21, 1997, or later FAA approved revisions, and installation of Skid Tubes per Aeronautical Accessories, Inc. Report AA-94088, Revision B, dated November 5, 1997, and/or installation of Low Skid Gear Crosstubes per Aeronautical Accessories, Inc.

Report AA-94043, Revision C, dated November 21, 1997, or installation of High Skid Gear Crosstubes per Aeronautical Accessories, Inc. Report AA-95005, Revision B, dated November 21, 1997, or later FAA approved revisions.

Bell Helicopter Textron, Inc.

441 Industrial Park Road Piney Flats, TN 37686 H13WE; H3SO; H15NM; H6SO Make : Rotorcraft Development Corporation; Richards Heavylift Helo, Inc.; Hagglund Helicopters, LLC; Southwest Florida Aviation International, Inc.

Model : UH-1B, UH-1H Date of application : November 24, 1997

Date of issuance : July 09, 1999

Date reissued : June 6, 2011

( Signature) James A. Richmond, Acting Manager Rotorcraft Certification Office, Southwest Region

( Title)

FAA Form 8110-2-1(10-69) Page 2 of 3

FAA Form 8110-2-1(10-69) Page 3 of 3

Number SR01924AT Date of Issuance: July 09, 1999 Date of Reissuance: June 6, 2011

Inspection and Maintenance requirements are listed in Aeronautical Accessories, Inc.

Report AA-97061, no revision, dated April 1, 1997, and Report No. AA-97062, no revision, dated April 3, 1997, or later FAA accepted revision. 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.