The STC search system is a complimentary service provided to the aviation community. We hope you find it useful. We do not provide access to STC engineering. For that you need to contact the STC holder directly. Our primary product is a comprehensive library of aviation regulations and standards, including tools for generating Airworthiness Directive compliance reports.

No. of STCs: 6

STC Holder: Ritter Cams Inc 765 Clark Street South, Vale, OR 97918, United States		If you are an STC Holder, Contact us to have your company added here!
STC No.: SA4709NM	Status: Current	App Date: 09/06/1988	Rev Date: 04/03/1989
Description: Installation of engine as modified by STC SE4020NM.
TC Nos.: A4CE
Models: Cessna Aircraft CompanyU206E, U206F
ACO: AIR-770: West Certification Branch SEA

STC Holder: Ritter Cams Inc 4611 Aviation Way, Caldwell, ID 83605, United States		If you are an STC Holder, Contact us to have your company added here!
STC No.: SA5180NM	Status: Current	App Date: 06/17/1991	Rev Date: 02/27/1992
Description: Installation of engine as modified by STC SE5177NM.
TC Nos.: A-782
Models: Sierra Hotel Aero Inc.Navion (Army L-17A), Navion A (Army L-17B and L-17C), Navion B, Navion D, Navion E, Navion F, Navion G
ACO: AIR-770: West Certification Branch SEA

STC Holder: Ritter Cams Inc 4611 Aviation Way, Caldwell, ID 83605, United States		If you are an STC Holder, Contact us to have your company added here!
STC No.: SA5180NM	Status: Historical	App Date:	Rev Date: 02/27/1992
Description: Installation of engine as modified by STC SE5177NM.
TC Nos.: A-782
Models: Navion Aircraft Company Ltd.Navion A (L-17B), Navion A (L-17C), Navion B, Navion D, Navion E, Navion F, Navion G
ACO: Seattle ACO Branch, Tel: +1 (206) 231-3500

STC Holder: Ritter Cams Inc 765 Clark Street South, Vale, OR 97918, United States		If you are an STC Holder, Contact us to have your company added here!
STC No.: SA5747NM	Status: Current	App Date: 06/26/1992	Rev Date: 07/30/1992
Description: Installation of engine as modified by Supplemental Type Certificate (STC) SE4384NM
TC Nos.: 5A6
Models: Cessna Aircraft Company180C, 180D, 180E, 180F, 180G, 180H, 180J
ACO: AIR-770: West Certification Branch SEA

STC Holder: Ritter Cams Inc 765 Clark Street South, Vale, OR 97918, United States		If you are an STC Holder, Contact us to have your company added here!
STC No.: SE4384NM	Status: Current	App Date: 08/01/1988	Rev Date: 07/30/1992
Description: Installation of Ritter camshaft.
TC Nos.: E-273
Models: Continental MotorsO-470-R
ACO: AIR-770: West Certification Branch SEA

STC Holder: Ritter Cams Inc 4611 Aviation Way, Caldwell, ID 83605, United States		If you are an STC Holder, Contact us to have your company added here!
STC No.: SE5177NM	Status: Current	App Date: 02/26/1990	Rev Date: 02/27/1992
Description: Replacement camshaft P/N629726A3 with camshaft P/N 32122-2.
TC Nos.: E5CE
Models: Continental MotorsIO-520-B, IO-520-BA, IO-520-BB
ACO: AIR-770: West Certification Branch SEA