STC SA7088NM

*Certification basis set forth in TCDS A-782 SA7088NM Navion Customs, LLC 7000 Merrill Avenue Box 95 Chino, California 91710 Part 3* the Civil Aviation Regulations A-782 Navion

A, B, D, E, F, G, H Installation of a -1 configuration: Continental IO-550B engine, McCauley D3A32C409C/82NDB-2 propeller, tubular engine mount, cowling, baffles, air induction system, and cowl flap mechanism; or a -3 configuration: Continental IO-550R engine, MT Propeller MTV-9-D/210-58 (82 inch) propeller, tubular engine mount, composite cowling, baffles, and air induction system in accordance with Master Document List NC-2016, Revision F, dated March 16, 2020 or later FAA approved revision. (see continuation sheet 3) The approval of this change in type design applies to the aforementioned models only. This modification should not be incorporated in any aircraft unless it is determined that the interrelationship between this change and any previously approved configuration will not introduce any adverse effect upon the airworthiness of the aircraft. A copy of this STC must be included in the permanent records of 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. (see continuation sheet 4) January 17, 1992 March 6, 2013; May 30, 2014 May 6, 1994 November 30, 2021 Manager, Propulsion Section Aviation Safety Los Angeles ACO Branch 4

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Description of Type Design Change: - continued:

The document list for the -1 configuration was previously referred to as Master Drawing List 2016 with no dash number, Revision A, dated April 11, 1994 or later FAA Approved revision. This described the installation of the Continental IO-550B engine, McCauley D3A32C409C/82NDB-2 propeller, tubular engine mount, cowling, baffles, air induction system, and cowl flap mechanism. The Master Drawing List 2016 has been combined with Master Document List NC-2016; and both are incorporated in Master Document List NC-2016 as of Revision F, dated March 16, 2020.

The installation -1 and -3 configurations are installed in accordance with Master Document List NC-2016, Revision F, dated March 16, 2020, or later FAA approved revision.

Instructions for Continued Airworthiness are contained in document number NC-ICA01, Revision IR, dated May 5, 2021, or later FAA accepted revision.

The -1 configuration requires the Russell Druett FAA Approved Airplane Flight Manual Supplement Number 1 for Navion models A, B, D, E, F, G, and H dated May 6, 1994, or later FAA approved revision.

The -3 configuration requires the Navion Customs, LLC FAA Approved Airplane Flight Manual Supplement POHS-001 for Navion models A, B, D, E, F, G, and H dated September 23, 2021, or later FAA approved revision.

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United States of America Department of Transportation NISTRATION Supplemental Type Certificate Federal Aviation Administration (Continuation Sheet) Number: SA7088NM Limitations and Conditions: - continued:

Configuration: -1 -3 Engine: Teledyne Continental I0-550-B Teledyne Continental I0-550-R Fuel: 100/100LL Minimum Grade Aviation 100/100LL Minimum Grade Aviation Gasoline Gasoline Engine Limits: For all operations 2700 rpm max.

Manifold Pressure: 27.0 in. Hg max.

285 HP maximum for all operations For all operations, 2600 RPM max.

Manifold Pressure: 27.5 in. Hg max.

285 HP maximum for all operations Propeller and McCauley D3A32C409C/82NDB-2 MTV-9-D/210-58 Propeller Limits: Hub Model D3A32C409C Hub Model MTV-9-D Blade Model 82NDB-2 Blade Model 210-58 Maximum diameter 80 in. Maximum diameter 210.5 centimeters Minimum diameter 78 1/2 in. Minimum diameter 209.5 centimeters Pitch Settings at 30 inch station: Pitch Settings at 79 centimeters station:

Low pitch 13.7 deg. ‡ 0.2 deg. Low pitch 8 deg. ‡ 0.2 deg High pitch 28.8 deg. + 0.5 deg. High pitch 36 deg. ‡ 1 deg.

Spinner McCauley D5541 Spinner P-753-2 Governor Woodward K210452 Governor P-860-2 Oil capacity: 12 U.S. qts. (10 U.S. qts. Usable) 12 U.S. qts. (10 U.S. qts. Usable) Powerplant Tachometer Tachometer Markings: Red Radial 2700 RPM Red Radial 2600 RPM Green Arc 1800 to 2700 RPM Green Arc 1800 to 2600 RPM Manifold Pressure Manifold Pressure Red Radial 27.0 in. Hg Red Radial 27.5 in. Hg Fuel Pressure Fuel Pressure Green Arc 4 to 17.5 PSI Green Arc 4 to 17.5 PSI Red Radial (minimum) 1.5 PSI Red Radial (minimum) 1.5 PSI Red Radial (maximum) 17.5 PSI Red Radial (maximum) 17.5 PSI Oil Temperature Green Arc 75 to 225°F (23.9 to 107.2°C) Red Radial (minimum) 75°F (23.9°C) Red Radial (maximum) 245°F (115.5°C) Oil Temperature Green Arc 75 to 225°F (23.9 to 107.2°C) Red Radial (minimum) 75°F (23.9°C) Red Radial (maximum) 245°F (115.5°C) Oil Pressure Oil Pressure Green Arc 30 to 60 PSI Green Arc 30 to 60 PSI Red Radial (minimum) 10 PSI Red Radial (minimum) 10 PSI Red Radial (maximum) 60 PSI Red Radial (maximum) 60 PSI Cylinder Head Temperature Cylinder Head Temperature Green Arc 212 to 460°F (100 to 237.8°C) Green Arc 212 to 460°F Red Radial 460°F (237.8°C) Red Radial 460° (237.8°C) Note: Navion models A, B, D, E, and F must incorporate fuselage structural modification in accordance with Navion Aircraft Specification No. A-782, Note 6.

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