STC SA3485WE

8103 *nited States of SucTice Department of Transportation Federal Aviation Administration Supplemental Type Certificate Number SA3485WE This certificate issued to: Riley Aircraft Corporation 2206 Palomar Airport Road Carlsbad, California 92008 Certifies that the change in the type design for the following product with the limitations and conditions thorefor as specified hereon meets the airvorthiness requivements of Part 3* of the CiVil Air Regulalions. *Certification Basis is set forth in Aircraft Specification 3A25 Original Product - Type bertificate Numben: 3A25 Make: Cessna Model: 340 520-NB engines and increase of takeoff power to 310 HP in Description of Type Design Change: Installation of Continental TS10-520-N or 1510- accordance with instructions contained in Riley FAA Approved Report No. RAC 340-2 dated June 27, 1977, or later FAA approved revision. See Page 5 of 5 for appropriate FAA Approved Airplane Flight Manual Supplement.

Limitations and Conditions: This approval of this modification applies to the above noted airplane model series only. This approval should not be extended to other specific airplanes of this model series on which other previously approved nodifications are incorporated, unless it is determined that the interrelationship between this change and any of those other previously approved modifications wil introduce no adverse effect upon the airworthiness of that aircraft. See Pages 3 through 5 for further Limitations and Conditions.

r of the Federal Aviation Administration .

Date of Application: June 28, 1977 Jule missued:

Date of Issuance: September 29, 1977 Jale unweded: November 18, 1977, April 26, 1993 FEDERAL AVIATION Bhy direin of the ldministrate * MINISTRATIO ActingNos Angeles Aircraft certification Office ( Signature ) (Title) 47 FAA FORM 8110-2 (10-68)

nited States of Sucrice Department of Transportation Federal Aviation Administration Supplemental Type Certificate (Continuation Sheet) Number: SA3485ME Limitations and Conditions: (cont.)

ENGINES 2 Teledyne Continental Motors TSIO-520-N or 2 Teledyne Continental Motors TS10-520-NB ENGINE LIMITS Maximum Continuous:

285 HP - 2700 RPM @ 34.4 MP S.L.

2700 RPM @ 34.4" MP 22,000 Ft.

2700 RPM @ 25.0" MP 30,000 Ft.

Takeoff: (5 minutes) 310 HP - 2700 RPM @ 38.0" MP S.L.

2700 RPM @ 38.0" MP 20,000 Ft.

PROPELLERS 2 McCauley 3AF32C87/82NC-4 Diameter: Maximum 78.0 inches Minimum 77.0 inches Pitch: Low 14.9° Feathered 82.6° Measured at 30 inch station For aircraft modified prior to April 26, 1993 with TS1O-520-N engines the minimum diameter limit is 74.0 inches.

OR 2 McCauley 3AF32C93/82NC-5.5 Diameter: Maximum 76.5 inches Minimum 74.0 inches Low 14.9° Feathered 81.2° Measured at 30 inch station.

Note: For aircraft modified prior to April 26, 1993 with TSIO-520-N engines the minimum diameter limit is 75.0 inches.

FAA FORM 8110-2-1 (10-69) PAGE 3 OF 5 PAGES FAA AC 82-03578

Enicci States of Sumerica Department of Transportation Federal Aviation Administration Supplemental Type Certificate (Continuation Sheet) Number: SA3485WE Limitations and Conditions: (cont.)

ENGINE Fuel Flow:

INSTRUMENT Minimum Operation - 0 lb./hr (3.0 PSI) - Red Radial MARKINGS Normal Operations - 10 lb./hr (3.5 PSI) to 185 lb./hr (20.0 PSI) - Green Arc Maximum Operation - 190 lb./hr (21.7 PSI) - Red Radial Manifold Pressure:

Normal Operating - 17.0" to 31.5" - Green Arc Conditional Normal Operational - 31.5" to 34.0" -Narrow Green Arc 2450 RPM mark @ 31.5" 2300 RPM mark @ 34.0" Maximum Operating - 38.0" - Red Radial AIRSPEED Minimum Control Speed (Vmc) - 86 KCAS -Red Radial

INDICATOR

MARKINGS REQUIRED On Instrument Panel:

PLACARDS Alt. x Maximum 1000 ft Manpsr-In

20.0 38.0

22.0 35.2

24.0 32.3

26.0 29.8

28.0 27.4

30.0 25.0 When Propeller Model 3AF32C87/82NC-4 is used, the following limitations placard must be displayed on the Instrument Panel:

AVOID CONTINUOUS OPERATION ABOVE 33 INCHES MANIFOLD PRESSURE AND BELOW 2600 RPM 47 PAGE 4 OF 5 PAGES FAA AC 82-03578

United States of America Department of Transportation Federal Aviation Administration Supplemental Type Certificate (Continuation Sheet) Number SA3485WE Limitations and Conditions: (cont.)

AIRPLANE FLIGHT Teledyne Continental Motors TSI0-520-N or TSI0-520-NB engines For aircraft modified on or after April 26, 1993, with either 2 MANUALS and 2 McCauley 3AF32C87/82NC-4 or 2 McCauley 3AF32C93/82NC-5.5 propellers Riley Aircraft Corporation FAA Approved Airplane Flight Manual Supplement No. 3 for Cessna 340, dated April 7, 1993, must be used.

Note: Riley Airplane Flight Manual Supplement No. 3 may be used in place of previously approved Riley Supplements for aircraft modified prior to April 26, 1993 per this Supplemental Type Certificate .

For aircraft modified prior to April 26, 1993, with 2 Teledyne Continental Motors TSIO-520-N engines and 2 McCauley 3AF32C87/82NC-4 propellers, Riley Aircraft Corporation FAA Approved Airplane Flight Manual Supplement For Cessna 340, dated November 8, 1977 may be used.

For aircraft modified prior to April 26, 1993, with 2 Teledyne Continental Motors TSIO-520-N engines and 2 McCauley 3AF32C93/82NC-5.5 propellers, Riley Aircraft Corporation FAA Approved Airplane Flight Manual Supplement For Cessna 340, dated September 29, 1977 may be used.

- END -

FAA FORM 8110-2-1 (10-69) PAGE 5OF 5 PAGES FAA AC 82-03578