STC SR02127NY-D

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

Part of the

Signature

Title SR02127NY-D Sikorsky Aircraft Corporation 6900 Main Street Stratford, CT 06615 Federal Aviation Regulations.

1. Installation of a HF-9000 High Frequency Communications System on Sikorsky S-76A, S-76B, S-76C aircraft in accordance with Keystone Helicopter Installation Drawing List IDL01306 Rev A, dated 12/04/2009.

2. Keystone Helicopter Flight Manual Supplement No. FM01306, Rev. 1, dated 12/12/2009 or later FAA approved revision is required for this installation.

3. The rotorcraft must be maintained in accordance with Keystone Helicopter Instructions for Continued Airworthiness, Rockwell Collins HF-9000 High Frequency Communications System, IC01306 Rev. A dated 11/01/2009 or later FAA accepted revision.

1. FADEC testing is required for the initial installation of this system on the S-76B model aircraft and the S-76C model aircraft with Turbomeca Arriel 1S1 and 2S1 engines.

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

3. 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.

Gaetano Sciortino Manager New York Aircraft Certification Office Sikorsky S-76A, S-76B, S-76C October 1, 2011, December 17, 2014 December 12, 2009 June 30, 2006 February 5, 2007 H1NE 3

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

To (Name and address of transferee)

From (Name and address of grantor)

3 SR02127NY-D

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

3 Date Reissued: December 17, 2014

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 Sikorsky S-76 is as follows:

a. They type certification basis for Sikorsky S-76 is shown on TCDS H1NE 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 is based upon Part 29 as amended by Amendment 29-51. 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 29-0 through 29-51

29.301, 29.303, 29.305(a), 29.307(a), 29.337(a), 29.601, 29.603, 29.607, 29.609, 29.613(a)(b)(d), 29.771(a),

29.773(a)(2), 29.777, 29.1301(a)(b)(c)(d), 29.1309(b)(2)(d)(g), 29.1353(a), 29.1357(a)(c), 29.1359(a)(c),

29.1431, 29.1501, 29.1529, 29.1581(a)(b)(d)

Regulations at an intermediate amendment:

None

Regulations at the amendment level in TCDS H1NE:

29.561(a)(b)(3)(c)

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