STC SR09536RC-D

Number SR09536RC-D This certificate issued to

Part 27 of the Federal Aviation Regulations.

Installation of a Health and Usage Monitoring System (HUMS) in accordance with the Master Drawing List (AA-09033 Revision D, dated October 26, 2010 or later FAA approved revision). Rotorcraft Flight Manual Supplement (Report No. AA-09040 Revision 0, dated November 9, 2010, or later FAA approved revision) is required. Instructions for Continued Airworthiness (Report No. AA-09041 Revision B, dated November 9, 2010, or later FAA accepted revision) is required.

Bell Helicopter Textron, Inc.

441 Industrial Park Road Piney Flats, TN 37686 R00003RD Make: Bell Helicopter Textron Canada Model: 429

Date reissued: February 9, 2011

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

( Title)

Date of application: July 13, 2009

Date of issuance: December 03, 2010

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

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

Number SR09536RC-D Date of Issuance: December 03, 2010 Date of Reissuance: February 9, 2011

The HUMS kit is installed on a non-required/non-hazardous basis. The utilization of the HUMS kit for maintenance credit is limited to: 1) Main Rotor Track and Balance;

2) Tail Rotor Dynamic Balance; and 3) Frahm Vibration Absorber Tuning. HUMS data may not be used for usage health or condition-based maintenance credits, such as extending Bell Helicopter’s published component lives or maintenance/inspection intervals. 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.

Certification Basis:

Subpart C

27.251, 27.301, 27.303, 27.305(a), 27.307(a)[26], 27.337(a)[26], 27.561(b)[32],

27.571(a)(b)[26]

Subpart D

27.601(a), 27.603(b)[16], 27.605(a)[16], 27.609(a), 27.610[37], 27.611(a)(b),

27.613(c)(d)[26], 27.619, 27.625(a)[35], 27.771(a)

Subpart E

27.1141(e)[33]

Subpart F

27.1301, 27.1305(k)[37], 27.1307, 27.1309(a)(b)(d)[21], 27.1322(c)(d)[11], 27.1327[13],

27.1351(a)(b)[13], 27.1357(a)(c)[13], 27.1365[35], 27.1367

Subpart G

27.1501[14], 27.1529[18], 27.1581[14], 27.1585(a)[21]

Appendix A A27.1, A27.2, A27.3[18], A27.4[24]