STC SA00014CH

AVIATIO United States of America Department of Transportation Federal Aviation Administration TEINISTRASD Supplemental Type Certificate Number: SA00014CH This certificate issued to: Turbine Conversions, Ltd.

18155 120th Ave.

Nunica, MI 49448 Part 23 of the Federal Aviation Regulations Original Product A10SO Make: piper Type Certificate Number: Model: PA-36-285, PA-36-300, PA-36-375 Description of Type Design Change:

Installation of a P&W (Canada) Turbopropeller engine (Model PT-6A, -6B, -20, -20A, -20B, or -6/C20) and Hartzell Propeller (Model HC-B3TN-3 (B, D) Hub and Model T10282 (N) -4R Blades) in accordance with Turbines, Inc. Drawing List KR-1135, Revision D, dated April 13 1994, and Removal List, KR-1179, no revision, dated August 27, 1992, or later FAA approved revision.

1. FAA Aproved Pilot's Operating Handbook Supplement, revision B, dated April 25, 1994, or later approved revision is required.

2. Modified aircraft must be maintained in accordance with Airworthiness Limitations, Turbines, Inc. Report KR-1170, no revision, dated December 4, 1992, or later FAA approved revisions.

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

4. 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.

Date of Application: November 5, 1991 Date Reissued: : 4/15/93; 5/26/94; 4/12/96: 1/7/97; 6/12/11; 4/4/16; 5/26/20; 10/25/22 Date of Issuance: December 4, 1992 Date Amended: 3/1/93; 6/9/94; 7124/94; 11/24/97; 4/4/16 By Direction of the Administrator Signature:

(for) Christina M. Underwood Title: Manager, Atlanta ACO Branch The STC's supporing documentation (drawings, instructions.

specifications, flight manual supplements, elc.) is the properly of the STC holder. An STC holder who allows a person lo use the STC to aller an aircraft, eircraft engine, or ...propeller must provide that person with written permission acceptable to the FAR. (Ref. 14 CFR 21.120).

EDERA AVIATION Department of Transportation United States of America Federal Aviation Administration TAAISTRATO Supplemental Type Certificate Number: SA00014CH

Transfer Endorsement Transfer the ownership of Supplemental Type Certificate Number: SA00014CH To (Name and address of transferee):

Note that paragraph (a) contains the certification basis of the unmodified restricted category PA-36 airplanes (as specified on Type Certification Data Sheet (TCDS A10SO) for parts not changed or not affected by the change while paragraph (b) lists the current version (latest amendment) of the Federal Aviation Regulation (FAR) 23 sections used for the parts changed or affected by the change.

(a) FAR 21 dated February 1, 1965, including Amendment 21-1 through 21-24 dated February 9, 1969, and FAR 23 dated August 1, 1967, including Amendments 23-1 through 23-6 dated August 1, 1967, with exceptions to FAR 23 per FAR 21.25 (a) (1). Note 4 of the TCDS lists the following exceptions to FAR 23 which were granted based on the Restricted Category operating limitations:

FAR 23.25 (a); 23.77 (b); 23.335; 23.337; 23.1505; 23.1507; 23.1545; and 23.1583 (a).

(b) Current FAR 23 regulations which are applicable:

Airframe

23.303, 23.337 (amdt. 34), 23.341 (amdt. 42), 23.361 (amdt. 26), 23.363, 23.371(b) (amdt.26),

23.613 (amdt.23), 23.615 (amdt.71), 23.625 (amdt.7) and 23.629(e) (amdt.31).

Note: FAR 23.629 (e), Whirl Mode Instability, is required by current regulation for all turbopropeller installations.

Powerplant FAR 23.903(b) and (e) (amdt.40), 23.937 (amdt.7), 23.939(a) and (c) (amdt.42), 23.991(a) (2) (amdt.26), 23.1019(a) (amdt.29), 23.1045 (amdt.7), 23.1091(c) (amdt.7), 23.1111 (amdt. 17), 23.1141

(e) (amdt. 18), 23.1155 (amdt.7), 23.1521 (amdt.21), 23.1557(c) (amdt.23).

NOTE (1): FAR 23.1093(b) "Induction System Icing Protection" is not contained in the certification basis, having been deemed by the FAA in the past as "an inappropriate requirement for restricted category turbopropeller aircraft used for agricultural purposesi. Instead, as was done with the Grumman American G-164D, an operational limitation is imposed prohibiting flight at ambient temperatures below 40 degrees Fahrenheit in a visible moisture. A corresponding cockpit placard is NOTE (2): Consistent with the approach taken in the certification of previous turbopropeller-powered agricultural airplanes in complying with FAR 23.1141(e), an instrument-panel control for the engine fuel control unit (to backup the throttle) is not required.

This

EDER AVIATION Department of Transportation United States of America Federal Aviation Administration MINISTRATO Supplemental Type Certificate (Continuation Sheet) Number: SA00014CH Certification Basis: (Continued from Page 3 of 4) System and Equipment FAR 23.1301 (amdt.20), 23.1303(d) and (e) (1) (amdt. 17), 23.1305 (except (t)) (amdt.34), 23.1309 (a),

(b), (c) and (d) (amdt.41), 23.1311 (amdt.41), 23.1321 (a), (c) and (e) (amdt.41), 23.1322 (amdt. 17),

23.1337 (amdt.18).

Flight Test FAR 23.1581 (amdt.34), 23.337 (amdt.34), 23.341 (amdt.42), 23.625 (amdt.7), 23.1303(d) and (e) (1) (amdt. 17), 23.1309(b) and (d) (amdt.41), 23.1311 (amdt.41), 23.1321(c) and (e) (amdt.41), and 23.1322 (amdt. 17), 23.937 (amdt.7); 23.1521 (amdt.21) and 23.1557(c) (amdt.23).

The following paragraphs (a. and b.) explain why certain environmental regulations are not included in the certification basis of this project. The rationale is included here for documentation purposes only:

a. The Noise Standards of FAR 36 do not apply because agricultural aircraft are excluded (Ref. FAR

36.1 (a)(2)). The placard requirement for "non-complying agricultural airplanes" is not applicable because this regulation is directed at airplanes receiving a standard airworthiness certificate. (Ref. FAR

36.1583 (a) (2) (i)).

b. The Fuel Venting and Exhaust Emission Requirements of FAR 34 do not apply because this regulation is only applicable to airplanes with a standard airworthiness certificate. (Ref. FAR 34.3 (C)).

Note that this regulation was previously contained in Special FAR 27-5, Section 1.(b).

.END...

This (14 CFR 21.47).

S. Department of Transportation Atlanta ACO Branch Federal Aviation Aircraft Certification Service 1701 Columbia Ave.

Administration Compliance & Airworthiness Division College Park, Georgia 30337 February 17, 2023 In Reply, Reference FAA Correspondence #: 7A2-23-00022 Larry Hatcher Project Coordinator Turbine Conversions, Ltd.

18155 120" Ave.

Nunica, MI 49448 Dear Mr. Hatcher:

Enclosed with this letter is Supplemental Type Certificate (STC) SA00014CH reissued in the corporate name and address of Turbine Conversions, Ltd. 18155 120" Ave. Nunica, MI 49448.

The Chicago Aircraft Certification Office (ACO) Branch will become the certificate managing ACO Branch based on responsible engineering for these design approvals resident at the aforementioned Nunica, MI address. The location of the FAA data pertaining to these STCs has been shared with the Chicago ACO Branch and, therefore, future correspondence concerning these STCs should be addressed to:

Federal Aviation Administration , Manager, Chicago ACO 2300 East Devon Avenue, Room 107 Des Plaines, IL 60018 As recipient of this approval, except as provided in § 21.3(d), you are required to report any failure, malfunction, or defect in any product or part manufactured by you that you have determined has resulted or could result in any of the occurrences listed in § 21.3(c).

The report should be communicated initially by telephone to the Manager, Chicago Aircraft Certification Office, telephone number (847)-294-7032, within 24 hours after it has been determined that the failure has occurred. In addition, written notification to the Certification Office is required. FAA Form 8010-4 (Malfunction or Defect Report) or any other appropriate format is acceptable in transmitting the required details.

If you plan to manufacture replacement or modification parts for sale in conformance with approved data listed on the STC, you are required to comply with CPR Part 21.303 and

21.307. The identification requirements for parts produced under a PMA are in CER Part

45.15. Your statement should be in letter form with reference to the STC number, and should

be addressed to the Manufacturing Inspection District Office that serves the geographical area of your manufacturing facility.

You, as the STC holder, are responsible for continued airworthiness after incorporation of these ST's on any aircraft, as well as for obtaining any design change approval that may be required.

By acceptance of these certificates, you acknowledge that you have read and understand you responsibilities as an STC holder and are in effect certifying that you have received and hold the necessary data to accomplish these ST's from the previous holder.

Sincerely, EUGENE E Digitally signed by EUGENE E EVANS EVANS Date: 2023.02.21 10:46:35 -05/00' (for) Christina M. Underwood Manager, Atlanta ACO Branch