STC SA02985CH

Part 23 of the Federal Aviation Regulations See Approved Model Listing for complete certification basis.

Installation of a Cool Start System in accordance with Installation Instructions , Revision A, dated April 14, 2011, 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 Manua l Supplement 511004 For Cool Start System Air Tractor, AG-CAT, Thrust Modified In Accordance With STC SA02985CH, Revision IR, dated March 28, 2011, or late r FAA Approved revision is required.

3. Instructions for Continued Airworthiness, Turbines C onversions, LTD Maintenance Ma nual 511002, dated December 2, 2010, or later FAA Accepted revision is required.

4. Cool Start Installation limited to airplanes that have a 28 volt GE Aviation Czech s.r.o M601, HONEYWELL TPE331, and PRATT & WHITNEY CANADA PT6A model series engine starting system.

5. If the holder agrees to permit another pers on to use this certificate to alter the product, the holder shall give the other person written evidence of that permission.

...End...

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

Turbine Conversions, LTD 18155 120th Ave.

Nunica, MI 49448 See AML Make :

(Signature) Michael Downs Acting Manager, Propulsion Branch Chicago Aircraft Certification Office

(Title)

Date of application: March 2, 2011

Date of issuance: May 10, 2011