STC SA02718SE

FAA Form 8110-2 (11/20) SUPERSEDES PREVIOUS EDITION Page 1 of ___ United States of America Department of Transportation Federal Aviation Administration Supplemental Type Certificate Number:

(See Continuation Sheet Page 3 of 8 Pages) SA02718SE Cascade Aircraft Conversions, LLC.

903 Grinnell Road Garfield, WA 99130 * * A4SW Revision 39 Thrush Aircraft LLC.

S2R-T34 & S2R-H80 with or without DC The installation of a Pratt & Whitney PT6A-140AG engine, Avia propeller V508H/108B/A or Hartzell propeller HC-B4TN-3C/T10702N(S), fuel system and aerodynamic modifications on S2R-T34 and S2R-H80 airplanes, and installation of rudder aileron interconnect on S2R-H80 airplanes, in accordance with Cascade Aircraft Conversions LLC. Master Drawing List (MDL), CAC-MDL-129, Revision F, dated February 7, 2024, or later FAA approved revisions, for S2R-T34 installations, and CAC-MDL-136, Revision E, dated February 7, 2024, or later FAA approved revisions for S2R-H80 installations.

1. Only airplanes used for the special purpose operations of aerial dispensing of liquids for agricultural

21.25(b)(1) and forest and wildlife conservation 21.25(b)(2) are approved for this modification.

October 15, 2018 September 21, 2021 September 15, 2021 February 20, 2024 For Manager, West Certification Branch 8

FAA Form 8110-2 (11/20) SUPERSEDES PREVIOUS EDITION Page 2 of ___ United States of America Department of Transportation Federal Aviation Administration Supplemental Type Certificate Number:

SA02718SE 8

This

FAA Form 8110-2 (11/20) SUPERSEDES PREVIOUS EDITION Page ___ of ___ United States of America Department of Transportation Federal Aviation Administration Supplemental Type Certificate (Continuation Sheet) Number:

(See Continuation Sheet Page 4 of 8 Pages) SA02718SE Certification Basis:

See TCDS A4SW, Revision 39, for the certification basis of areas not changed or affected.

This modification is approved under the provisions of Title 14 Code of Federal Regulations (14 CFR) Paragraph 21.25(a)(1) for the special purpose operations of aerial dispensing of liquids for agricultural purposes per Paragraph 21.25(b)(1) and forest and wildlife conservation per Paragraph 21.25(b)(2).

For the areas changed or affected, based on the application date of October 15, 2018, under the provisions of § 21.101, the applicable regulations at the specified amendment levels are as follows:

Civil Air Regulations (CAR) 3, effective May 15, 1956, listed below as amended up to Amendment 3-14:

3.62, 3.63, 3.64, 3.65, 3.75, 3.76, 3.106, 3.109, 3.112, 3.116, 3.117, 3.120(f), 3.143, 3.144,

3.145, 3.146, 3.159, 3.327, 3.328, 3.329, 3.330, 3.336, 3.385, 3.392, 3.401, 3.422, 3.551,

3.553, 3.632, 3.666

14 CFR Part 23, effective February 1, 1965, regulations and amendments as listed below:

Note: Dash number in parentheses is amendment level

23.1(-34), 23.2(-36), 23.3(-62), 23.21(-0), 23.23(-45), 23.25(-50), 23.29(-21), 23.31(-13),

23.33(-50), 23.45(-62), 23.49(c)(1)(-62)*, 23.49(e)(2)(-62)*, 23.51(-0), 23.53(-34), 23.65(c) (-21)*, 23.77(b)(-21), 23.141(-45), 23.147(c)(-50), 23.171(-0), 23.173(-14), 23.175(-14),

23.177(-0), 23.201(-62), 23.203(-62), 23.301(-48), 23.303(-0), 23.305(-0), 23.307(-0),

23.321(-0), 23.331(-0), 23.333(-34), 23.335(-34), 23.337(-34), 23.341(-34), 23.345(-23),

23.347(-0), 23.349(-34), 23.351(-0), 23.361(-26), 23.363(-0), 23.371(-26), 23.391(-0),

23.395(-7), 23.397(-7), 23.407(-0), 23.409(-0), 23.415(-7), 23.421(-7),...

This

FAA Form 8110-2 (11/20) SUPERSEDES PREVIOUS EDITION Page ___ of ___ United States of America Department of Transportation Federal Aviation Administration Supplemental Type Certificate (Continuation Sheet) Number:

(See Continuation Sheet Page 5 of 8 Pages) SA02718SE Certification Basis continued:

23.603(-0), 23.605(-0), 23.607(-48), 23.609(-0), 23.611(-48), 23.613(-45), 23.619(-7),

23.621(-45), 23.623(-7), 23.625(-7), 23.627(-0), 23.629(a) through (e)(-31), 23.671(-0),

23.683(-7), 23.735(b)(-7), 23.771(-0), 23.773(-0), 23.777(-0), 23.779(-0),23.781(-33),

23.831 all except (b)**, 23.865(-48), 23.867(-49), 23.901(-53), 23.903(-29), 23.905(-0),

23.907(-51), 23.929(-14), 23.933(-39), 23.937(-43), 23.939(-42), 23.943(-43), 23.951 (-15), 23.954(-7)*, 23.955(f)(-7), 23.961(-0), 23.977(-17), 23.991(-7), 23.993(-43),

23.997(-15), 23.1011(-43), 23.1013(-15), 23.1015(-15), 23.1017(-14), 23.1019(-15),

23.1021(-43), 23.1023(-0), 23.1027(-14), 23.1041(-7), 23.1043(-7)*, 23.1045(-51),

23.1091(-51), 23.1093(-51)*, 23.1103(-43), 23.1107(-51), 23.1111(-17), 23.1121(-7),

23.1123(-43), 23.1141(-51), 23.1143(-51), 23.1145(-43), 23.1147(-43), 23.1149(-0),

23.1155(-7), 23.1163(-42), 23.1165(-34), 23.1181(-51), 23.1182(-14), 23.1183(-51),

23.1189(b)(-43), 23.1191(-51), 23.1193(-0), 23.1301(-62), 23.1303(-0), 23.1305(-52) all except (d)**, 23.1308(-57), 23.1309(-49), 23.1311(-49), 23.1321(-49) all except (d) &

(e)**, 23.1322(-43), 23.1323(-7), 23.1331(-43), 23.1337(-51), 23.1351(-49), 23.1353 (-49), 23.1357(-0), 23.1361(-0), 23.1365(-0), 23.1367(-0), 23.1381(-0), 23.1431(-0),

23.1501(-21), 23.1521(-21), 23.1529(-64), 23.1541(-21), 23.1543(-50), 23.1547(-20),

23.1549(-45), 23.1551(-0), 23.1557(-45), 23.1559(-50) all except (a)(2)**, 23.1563(-50),

23.1567(-50), 23.1581(-50) all except (e)**, 23.1583(-50) all except (g)(h)(j)(l)**,

23.1585(-50), 23.1587(a)(-50), 23.1589(-50)

*Compliance with the regulation was demonstrated in accordance with FAA policy memorandum ACE-110_19971201, dated December 1, 1997.

**The Administrator finds these regulations to be inappropriate for restricted category agricultural airplanes as allowed by 14 CFR 21.25(a)(1). Unless listed in the table above, compliance with the 14 CFR Part 23 regulations listed in FAA Advisory Circular

21.25-1, dated December 1, 1997, Appendix 1, has not been shown and is not required.

This

FAA Form 8110-2 (11/20) SUPERSEDES PREVIOUS EDITION Page ___ of ___ United States of America Department of Transportation Federal Aviation Administration Supplemental Type Certificate (Continuation Sheet) Number:

(See Continuation Sheet Page 6 of 8 Pages) SA02718SE Certification Basis continued:

Airplanes modified by this type certificate have not shown compliance to the noise requirements of 14 CFR Part 36 based on the exception in Paragraph 36.1(a)(2) for the special purpose of agricultural aircraft operations as defined in § 137.3 and for dispersing fire fighting materials.

Limitations and Conditions: continued:

2. Installation is limited to all approved serial numbers of S2R-H80, and S2R-T34 serial numbers T34-451 and subsequent, and S2R-T34 serial numbers T34-273 through T34-450 when modified with Thrush Custom Kit CK-AG-45.

3. The modifications must be installed in accordance with the Installation Manual of P&W PT6A-140AG on S2R-T34 or S2R-H80, Document No. CAC-IM-129, Revision E, dated April 17, 2023, or later FAA approved revision.

4. Installation is limited to S2R-T34 and S2R-H80 airplanes with an Electronics International MVP-50T display installed and configured per Cascade Aircraft Conversions LLC. MVP-50T Configuration Spreadsheet, Document No. CAC-MVP-129, Revision A, dated March 30, 2021, or later FAA approved revision for Avia propeller, and Document No. CAC-MVP-137, Revision IR, dated November 1, 2022, or later FAA approved revision for Hartzell propeller.

5. The modified S2R-T34 airplanes must be operated in accordance with the limitations and provisions of Airplane Flight Manual Supplement for Thrush Model S2R-T34 Series Restricted Category Agricultural Aircraft as Modified with PWC PT6A-140AG Engine, Document No.

CAC-AFMS-129, Revision B, dated February 14, 2024 or later FAA approved revision.

6. The modified S2R-H80 airplanes must be operated in accordance with the limitations and provisions of Airplane Flight Manual Supplement for Thrush Model S2R-H80 Series Restricted Category Agricultural Aircraft as Modified with PWC PT6A-140AG Engine, Document No. CAC-AFMS-136, Revision A, dated February 14, 2024, or later FAA approved revision.

This

FAA Form 8110-2 (11/20) SUPERSEDES PREVIOUS EDITION United States of America Department of Transportation Federal Aviation Administration Supplemental Type Certificate (Continuation Sheet) Number:

(See Continuation Sheet Page 7 of 8 Pages) Page __6 _ of ___ SA02718SE Limitations and Conditions: continued:

7. The modified airplanes must be maintained in accordance with Instructions for Continued Airworthiness, Document No. CAC-ICA-129, Revision A, dated October 5, 2023, or later FAA approved revision. The engine and propeller airworthiness limitations have been provided for convenience in Document No. CAC-ICA-129. If conflict exists the published engine and propeller airworthiness limitations documents are the controlling documents.

8. Restricted category aircraft may not be operated in a foreign country without the express written approval of that country.

9. This aircraft has not been shown to meet the requirements of the applicable comprehensive and detailed airworthiness code as provided by Annex 8 of the Convention on International Civil Aviation.

10. No passengers are permitted. See § 91.313.

11. The installer must determine if this design change is compatible with previously approved modifications.

12. 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.

Data pertinent to both Thrush S2R-T34 and S2R-H80:

Engine: Pratt & Whitney Canada Corporation PT6A-140AG

Fuel: Jet A and Jet A-1 only. All other fuels prohibited.

Oil: Aero Shell Turbine Oil 500 or 560 or 750, Royco Turbine Oil 500 or 750, Castrol 98, Eastman Turbo Oil 274 or 2380, Mobile Jet Oil II, Castrol 5000, Turbonycoil 600. Mixing of different viscosity or specification oils is prohibited.

Maximum Oil Capacity: 9.5qt (9L) hot / 8.5qt (8L) cold.

United States of America Department of Transportation Federal Aviation Administration Supplemental Type Certificate (Continuation Sheet) Number: SA027185E Limitations and Conditions: continued:

Engine Limits:

Conditions Operating Rated Power Torque (1)(15) Max ITT Gas Gen Speed(*) Ng / % Np / % Speed Shaft Prop Pressure(®) Oil Temp(" Oil SHP (3) (psi) °C RPM RPM psig °C Take-off 850(19) 45.7(2) 870 38850 / 103.7 1900(13)/ 100 85-120 10 to 99 1900(13) Max Cont. 850(19) 45.7(2) 825 38850 / 103.7 100 85-120 10 to 99 Max Climb (14) 850(19) 45.7(0) 825(17) 38850 / 103.7 1900(13) 100 85-120 O to 99 Cruise (14) Max 850(19) 45.7(2) 805(18) 38850 / 103.7 190013)/ 100 85-120 0 to 99 Starting 1090(11) 200 max -40 min Idle 700 20607(4)/55.0 40 min -40 to 99 Transient 52.3 (8) 905(10) 40000(9)/ 106.8 2090(5)/ O to 99(9) 110 Reverse (12) 850(19) 45.7() 850 38850 / 103.7 1825 / 96 85-120 0 to 99 General notes to engine limits table:

Gas Generator Speed: 100% Ng = 37468 RPM Prop Shaft Speed 100% Np = 1900 RPM Specific notes to engine limits table:

(1) Engine inlet condition limits for engine operation up to 12,500 ft air inlet temperature up to 52 °C.

(2) Maximum recommended torque at 1900 RPM Np is 43.8 psi. Torque limit of 45.7 psi allows operation at reduced Np at quoted power settings of 850 SHP:

Np = 100% = 1900 RPM at Torque = 43.8 psi OR Np = 96% = 1823 RPM at Torque =45.7 psi. (straight line variation between these two points)

(3) Installed SHP available, ISA sea level.

(4) For every 10°C (18°F) below -30°C (-22°F) ambient temperature, reduce maximum allowable Ng by 2.2%.

(See Continuation Sheet Page 8 of 8 Pages) This

FAA Form 8110-2 (11/20) SUPERSEDES PREVIOUS EDITION Page Z of 8

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FAA Form 8110-2 (11/20) SUPERSEDES PREVIOUS EDITION Page ___ of ___ United States of America Department of Transportation Federal Aviation Administration Supplemental Type Certificate (Continuation Sheet) Number:

End 8 SA02718SE Limitations and Conditions: continued:

Specific notes to engine limits table continued:

(5) 2000 RPM Np may be employed in an emergency condition, to complete a flight in order to land as soon as practical, and may be employed at all ratings.

(6) Normal oil pressure is 85 to 120 psig at gas generator speed above 72% (Ng)speed.

(7) Maximum transient oil temperature is 104⁰C for 10 minutes maximum.

(8) This value is time limited to 20 seconds.

(9) This value is time limited to 20 seconds.

(10) This value is time limited to 20 seconds.

(11) The value is time limited to 2 seconds.

(12) Reverse power operation is limited to one minute.

(13) A transient fluctuation of up to ±40 rpm is permitted to account for power setting accuracy and steady state fluctuations. Steady state max Np setting is 1900 rpm.

(14) Minimum in-flight gas generator speed of 67% (25104 rpm) required within 5 seconds.

(15) Conversion factor: Shaft Torque (lb.ft) = 53.6 x torquemeter pressure (psid)

(16) through (18) Not used.

(19) Limit of 850 SHP is due to Avia V508H propeller.

Propeller: Avia V508H with Avia hub model 1000-0000 and 108B/A blades without de-icer. Diameter 108 inches maximum and 102 inches minimum. Propeller Limits: 1900 RPM and 850 SHP. Pitch Limits: Low=12 +/- 0.1 degrees, Feather=85 +/- 1 degrees, Reverse=-19 +/- 1 degrees at 1009 mm radius.

Propeller: Hartzell HC-B4TN-3C hub and T10702N(S) blades without de-icer. Diameter 108 inches maximum and 107 inches minimum. Propeller Limits: 1900 RPM and 850 SHP: Pitch Limits: Low=11.8+/- 0.1 degrees, Feather=80.7 +/-0.5 degrees, Reverse=-15.0 +/- 0.5 degrees at 42 inch radius.

Maximum Cargo Load: Aft Baggage: 60lbs (FS 100.0) Fwd Baggage: 50lbs (FS -24.0) 105 lb. of removable ballast at FS -55.0 must be installed if carrying a passenger or more than 50 lb of removable ballast is loaded in the passenger compartment.

Required Equipment: The basic required equipment as prescribed in the applicable airworthiness regulations (see Certification Basis) must be installed in the airplane for airworthiness certification.