STC SA4713NM

Beak Anitco Bates of America Department of Transportation Federal Aviation Administration Supplemental Type Certificate Number: SA4713NM This certificate issued to: William F. Hubler 5703 Hubler Lane Caldwell, ID 83605 Certifies that the change in the type design for the following product with the limitations and conditions therefor as specified hereon meets the airworthiness requirement's of Part 8 of the Civil Air Regulations.

(CAR 8) effective October 11, 1950, as stated in the original product Type Certificate.

Original Product -Type Certificate Nunder A4SW Make: Ayres Corporation Model: S-2R, Restricted Category Description of Type Design Change: Install an Allied Signal TPE331-1-151A, -151G, or -151K turboprop engine operated at TPE331-43-A ratings to replace the Garrett TPE331-43-A turboprop engine installed under STC No. SA4369NM in accordance with William F. Hubler's Engine Installation Build-Up Parts List, WFH-PL-724, Revision A, dated January 15, 1998, or later FAA approved revision.

other aircraft. Therefore, this approval is limited to the installation in Ayres Corporation S-2R, Restricted Category aircraft, Serial Number 5081R. A copy of this Certificate and Airplane Flight Manual Supplement WFH-FM-300, Revision A, dated March 6, 1998, must be maintained as part of the permanent records for the modified aircraft.

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.

Date of Application: March 29, 1989 Date Reissued:

Date of Issuance: April 13, 1989 Date Amended: March 5, 1998 FEDERAL AVIATION strator

00..

(Signature) TOMINIST RATIOD Acting Manager, Seattle Aircraft Certification Office (Title)

United States of America Department of Transportation Federal Aviation Administration Supplemental Type Certificate (Continuation Sheet) Number: SA4713NM Limitations and Conditions: contiued:

Ayres Corporation S-2R, Restricted Category, as modified by this STC.

Engine Allied Signal TPE331-1-151A, -151G, or -151K Fuel Aviation turbine fuels ASTM designation D1655-64T, Types Jet A, A-1, and B; and with military aviation turbine fuel MIL-T-5624G, Grades JP-4 and JP-5; and with military aircraft fuel MIL-F-5616-1, Grade JP-1. Consult Garrett Report PE-5064-R Fuel Additives Fuel not containing anti-icing fuel additives may be fortified with MIL-I-27686D Fuel System Icing Inhibitor, or an equivalent, but not in excess of 0. 1 percent by volume.

Oil Oil types conforming to MIL-L-23699 and MIL-L-7808.

See Garrett Specification EMS 53110 Engine Ratings Takeoff (5 minutes) 575 HP (See Note 2) Maximum Continuous 575 HP Reverse 575 HP Engine Limits Output Shaft Speed 2000 RPM Transient Overspeed (5 secs.) 2100 RPM Transient Overspeed (5 mins.) 2020 RPM Reverse 2000 RPM Torque Takeoff (5 mins.) 1510 Ft. Lbs.

Maximum Continuous 1510 Ft. Lbs.

Reverse 1510 Ft. Lbs.

Exhaust Gas Takeoff (5 mins.) 578° C Temperature Maximum Continuous 556° C Starting (1 sec.) 815° C Reverse 578° C Oil Pressure Takeoff and Maximum Continuous 70 to 120 psig Oil Temperature MIL-L-28699 -40° C to 127° C MIL-L-7808 -40° C to 93° C

FAA FORM B110-2-1 (10-69) PAGE 3 OF 4 PAGES

United States of America Department of Transportation Federal Aviation Administration Supplemental Type Certificate (Continuation Sheet) Number: SA4713NM Limitations and Conditions: continued Propeller Hartzell HC-B3TN-5M/T10282+4 Minimum length 101 inches diameter Maximum length 106 inches diameter Flight Idle blade angle 8.5° Max. Approved 30,000 feet Altitude C.G. Range Maximum weight 6,000 pounds; forward C.G. limit 22.5 inches aft of datum and Weight Aft C.G. limit 30.0 inches aft of datum (Datum is the leading edge of the wing) Applicability The approval of this change in type design applies to the aircraft shown on page 1 of this STC that is otherwise unmodified. This approval is not to be extended to other aircraft of this model.

Certification CAR 8, Restricted Category, effective October 11, 1950.

Basis Equipment The following must be installed in the aircraft for airworthiness certificate subsequent to the incorporating of this STC:

The basic required equipment as prescribed in the applicable airworthiness regulations (see "Certification Basis" outlined above).

Note 1. Refer to the applicable FAA Approved Flight Manual for required placards and instrument markings.

Note 2 The ratings shown on the AiResearch TPE331 engine is based on the static sea level standard conditions with no external accessory loads and no air bleed, operated at the -43-A maximum HP rating.

Note 3. Current weight and balance data, including a list of equipment included in the certificated empty weight and loading instructions, when necessary, must be provided at the time of airworthiness certification for return to service

- END -

FAA FORM 8110-2- 1 (10-69) PAGE 4 OF 4 PAGES