STC SA01660CH

Part * of the * Regulations. *

Original Product--Type Certificate Number: * *See attached FAA Approved Model List Make: * (AML) No. SA01660CH for list of approved airplane Model : * models and applicable airworthiness regulations

Remove Janitrol P/N C15C54 or Twin Commander P/N 88035-5 combustion heater and install C&D Associates, Inc. Model CD35K heater kit 10 P/N CD12043K10 in accordance with C&D Associates, Inc. Installation Instructions as listed on AML No.

SA01660CH, or later FAA Approved revision.

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

2. FAA approved Airplane Flight Manual Supplement, Rev. -, dated March 4, 2002, and Instructions for Continued Airworthiness/ Maintenance Manual MM10000, Second Edition, Rev. none, dated April 4, 2002 or later FAA approved revision are required.

3. Check aircraft Weight and Balance.

4. A copy of this certificate and FAA Approved Model List (AML) No. SA01660CH, dated June 24, 2002, or later FAA approved revision must be maintained as part of the permanent records for the modified aircraft.

5. 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.

Hartzell Engine Technologies LLC 2900 Selma Highway Montgomery, Alabama 36108 Date of application : January 8, 2002

Date of issuance : June 24, 2002

Date reissued : February 11, 2016

(Signature) Timothy Smyth Manager, Chicago Aircraft Certification Office

(Title)

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

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