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No. of STCs: 4

STC Holder: Tri-State Aviation, Inc P.O. Box 843, Wahpeton, ND 58074, United States		If you are an STC Holder, Contact us to have your company added here!
STC No.: SA1653GL	Status: Current	App Date:	Rev Date: 10/24/1991
Description: Install Aileron Servo Tabs.
TC Nos.: A4SW
Models: Ayres CorporationS2R
ACO: AIR-760: Central Certification Branch CHI

STC Holder: Tri-State Aviation, Inc 1251 Pegasus Road, Wahpeton, ND 58075, United States		If you are an STC Holder, Contact us to have your company added here!
STC No.: SA3239CH	Status: Historical	App Date: 02/09/2010	Rev Date: 07/17/2013
Description: Installation of modified propeller blades
TC Nos.: LTC-11
Models: Cal Pacific Airmotive Inc.Army P-51C, Army P-51D, Army P-51K
ACO: Chicago ACO Branch, Tel: +1 (847) 294-7358

STC Holder: Tri-State Aviation, Inc 1251 Pegasus Road, Wahpeton, ND 58075, United States		If you are an STC Holder, Contact us to have your company added here!
STC No.: SA3239CH	Status: Current	App Date: 02/09/2010	Rev Date: 12/31/2014
Description: Installation of modified propeller blades
TC Nos.: LTC-11
Models: Cal Pacific Airmotive Inc.Army P-51C, Army P-51D, Army P-51K
ACO: AIR-760: Central Certification Branch CHI

STC Holder: Tri-State Aviation, Inc P.O. Box 843, Wahpeton, ND 58074, United States		If you are an STC Holder, Contact us to have your company added here!
STC No.: SA586GL	Status: Current	App Date:	Rev Date: 08/06/1991
Description: Installation of spray boom system. (T188C RESTRICTED CATEGORY)
TC Nos.: A9CE
Models: The Cessna Aircraft Company188, 188A, 188B, A188, A188A, A188B, T188C
ACO: AIR-760: Central Certification Branch CHI