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: Wall Colmonoy Corp 4700 S.E. 59th Street, Oklahoma City, OK 73135, United States		If you are an STC Holder, Contact us to have your company added here!
STC No.: SA1921SW	Status: Current	App Date: 09/27/1974	Rev Date: 06/05/2019
Description: Installation of Exhaust System Muffler Assembly
TC Nos.: 3A12, A13CE
Models: Textron Aviation Inc.172, 172A, 172B, 172C, 172D, 172E, 172F (USAF T-41A), 172G, 172H (USAF T-41A), 172I, 172K, 172L, 172M, 172N, 172P, 172Q, 172R, 172S, 177, 177A, 177B
ACO: AIR-760: Central Certification Branch FTW

STC Holder: Wall Colmonoy Corp 4700 S.E. 59th Street, Oklahoma City, OK 73135, United States		If you are an STC Holder, Contact us to have your company added here!
STC No.: SA3745SW	Status: Current	App Date: 04/22/1986	Rev Date: 04/24/1987
Description: Wall Colmonoy Nicrocraft muffler P/N PIM-0007.
TC Nos.: 2A13
Models: Piper Aircraft Inc.PA-28-151, PA-28-161, PA-28-180, PA-28-181
ACO: AIR-760: Central Certification Branch FTW

STC Holder: Wall Colmonoy Corp 4700 S.E. 59th Street, Oklahoma City, OK 73135, United States		If you are an STC Holder, Contact us to have your company added here!
STC No.: SA5747SW	Status: Current	App Date:	Rev Date: 04/22/1985
Description: Manufacture of Wall Colmonoy muffler P/N PI M006 which is interchangeable with Piper P/N 12433-14 and 12433-15.
TC Nos.: 1A2
Models: The New Piper Aircraft Inc.PA-18"105" (Special)
ACO: AIR-760: Central Certification Branch FTW

STC Holder: Wall Colmonoy Corp 4700 S.E. 59th Street, Oklahoma City, OK 73135, United States		If you are an STC Holder, Contact us to have your company added here!
STC No.: SA5873SW	Status: Current	App Date: 06/15/1984	Rev Date: 01/25/1985
Description: Installation of Wall Colmonoy exhaust stack.
TC Nos.: 3A13, 3A24, 5A6
Models: The Cessna Aircraft Company180, 182, 185
ACO: AIR-760: Central Certification Branch FTW

STC Holder: Wall Colmonoy Corp 4700 S.E. 59th Street, Oklahoma City, OK 73135, United States		If you are an STC Holder, Contact us to have your company added here!
STC No.: SA7486SW	Status: Current	App Date: 07/23/1986	Rev Date: 09/29/1988
Description: Installation of Wall Colmonoy Muffler Front and Muffler Rear.
TC Nos.: 2A13
Models: The New Piper Aircraft Inc.PA-28-150
ACO: AIR-760: Central Certification Branch FTW

STC Holder: Wall Colmonoy Corp 4700 S.E. 59th Street, Oklahoma City, OK 73135, United States		If you are an STC Holder, Contact us to have your company added here!
STC No.: SA7499SW	Status: Current	App Date: 04/21/1986	Rev Date: 11/04/1988
Description: Installation of Wall Colmonoy Stack Assembly.
TC Nos.: A-777
Models: Raytheon Aircraft Company35, B35, C35, D35, E35, F35, G35
ACO: AIR-760: Central Certification Branch FTW