STC SA2444SW

Part 8 of the Civil Air Regulations.

Installation of P&WACL PT6A-34, -34AG, -15AG, -20A, - 41, -41G, -36, -135, -135A, or -28 engine according to Frakes Aviation Master Drawing List 70000, Revision L dated February 12, 1992, or later FAA approved revisions.

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.

Turbine Conversions, Ltd.

18155 120th Avenue Nunica, MI 49448 1A16 Make : Allied Ag Cat Productions, Inc Model : G-164A, G-164B, G-164C Date reissued: June 1, 2012

Date amended: March 9, 1989 Rev.10, April 20, 1992 Rev 11.

By direction of the Administrator Original Signed By:

Timothy Smyth

( Signature) Timothy Smyth Manager, Propulsion Branch Chicago Aircraft Certification Office

( Title)

Date of application: August 18, 1976

Date of issuance : April 08, 1977

FAA FORM 8110-2-1(10-69) PAGE 3 of 3 PAGES

Number SA2444SW Date of Reissuance: June 1, 2012

Engine Operating Limitations:

RPM Torque Torque Pressure For PT6A-34 and -34AG Engines:

1. Models G-164A and G-164B 2200 1970 Ft. lbs. 64.5 2200 1055 Ft. lbs. 34.5

2. Model G-164C 2200 1970 Ft. lbs. 64.5 2200 1282 Ft. lbs. 42

For PT6A-15AG / PT6A-28 / PT6A-21

1. Models G-164A and G-164B 2200 1628 Ft. lbs. 53 2200 1055 Ft. lbs. 34.5

For PT6A-41 / -41AG / -42 / -42A

1. Model G-164C 2000 2230 Ft. lbs. 72.95 2000 1406 Ft. lbs. 46

For PT6A-20A Engines:

1. Model G-164A 2200 1315 Ft. lbs. 42.5

For PT6A-35 Engines:

1. Model G-164A, G-164B, 2200 1970 Ft. lbs. 64.5 and G-164C

For PT6A-135 and -135A Engines:

1. Models G-164A, G-164B, 1900 2080 Ft. lbs. 59.1 and G-164C

Additional information on Limitations are contained in placards and markings. Placards are shown on Drawing FA-7021.

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.

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