STC SA00971CH

FAA FORM 8110-2-1(10-69) PAGE 1 of 2 PAGES

Number SA00971CH This certificate issued to

Part 3 of the Federal Aviation Regulations.

Remove South Wind 940 series combustion heater and install C&D Associates, Inc. TSO-C20 approved Heater Kit 3 (P/N CD14010K3), Kit 4 (P/N CD12006K4), Kit 5 (P/N CD11214K5) or Kit 6 (P/N CD11215K6) in accordance with C&D Associates, Inc. Installation Instructions as listed on AML No. SA00971CH, or later FAA Approved revision.

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

2. Check aircraft weight and balance.

3. A copy of this Certificate and FAA Approved Model List (AML) No. SA00971CH, dated April 16, 1999, or later FAA approved revision, must be maintained as part of the permanent records for the modified aircraft.

4. 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.

This certificate and the supporting data, which is the basis for approval, shall remain in effect until surrendered, suspended, revoked or a termination date is otherwise established by the Administrator of the Federal Aviation Administration.

Hartzell Engine Technologies LLC 2900 Selma Highway Montgomery, Alabama 36108

*See attached FAA Approved Model List (AML) No.

Make : SA00971CH for list of approved airplane models and Model : applicable airworthiness regulations.

Date reissued : February 11, 2016

Date amended : April 16, 1999; October 19, 1999 January 10, 2000; May 17, 2000; March 29, 2004

(Signature) Timothy P. Smyth Manager, Chicago Aircraft Certification Office

Date of application: September 12, 1998

Date of issuance : December 16, 1998

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