The STC search system is a complimentary service provided to the aviation community. We hope you find it useful. Our primary product is a comprehensive library of aviation regulations and standards, including tools for generating Airworthiness Directive compliance reports.

No. of STCs: 4

STC Holder: Nelson Harold G 3005 S.W. Marshall St., Pendleton, OR 97801, United States		If you are an STC Holder, Contact us to have your company added here!
STC No.: SA2038WE	Status: Current	App Date: 06/16/1969	Rev Date: 03/07/1974
Description: Installation of Lycoming O-320 series engine, McCauley 1A170/1C172 and Sensenich M74DM propellers and associated alternator systems.
TC Nos.: A-780
Models: FS 2003 Corp.PA-12
ACO: AIR-770: West Certification Branch SEA

STC Holder: Nelson Harold G 3005 S.W. Marshall St., Pendleton, OR 97801, United States		If you are an STC Holder, Contact us to have your company added here!
STC No.: SA450NW	Status: Current	App Date: 05/07/1977	Rev Date: 10/05/1977
Description: Installation of safety valve (Cessna P/N C482002-0101), adapter bracket, placard, and supercharger actuator guard
TC Nos.: 2A3
Models: Mooney Aviation Company IncM20C
ACO: AIR-770: West Certification Branch SEA

STC Holder: Nelson Harold G 3005 S.W. Marshall St., Pendleton, OR 97801, United States		If you are an STC Holder, Contact us to have your company added here!
STC No.: SA57NW	Status: Historical	App Date:	Rev Date: 03/06/1974
Description: Installation of Lycoming O-320-E2D engine, McCauley TM7653 propeller and Lycoming alternator.
TC Nos.: A-797
Models: The New Piper Aircraft Inc.PA-14
ACO: Seattle ACO Branch, Tel: +1 (206) 231-3500

STC Holder: Nelson Harold G 3005 S.W. Marshall St., Pendleton, OR 97801, United States		If you are an STC Holder, Contact us to have your company added here!
STC No.: SA57NW	Status: Current	App Date: 02/15/1971	Rev Date: 03/06/1974
Description: Installation of Lycoming O-320 series engine, McCauley 1A170/1C172 and Sensenich M74DM propellers and associated alternator systems
TC Nos.: A-797
Models: FS 2002 Corp.PA-14
ACO: AIR-770: West Certification Branch SEA