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No. of STCs: 9

STC Holder: Williams Bob or Barbara PO Box 608, Udall, KS 67146, United States		If you are an STC Holder, Contact us to have your company added here!
STC No.: SA1063CE	Status: Current	App Date: 02/08/1974	Rev Date: 02/03/1983
Description: Installation of two Hartzell HC-E3YR-2AF/FC7663-2R propellers and C-3269A or 82D3273P spinners
TC Nos.: 1A10
Models: The New Piper Aircraft Inc.PA-23-250
ACO: AIR-760: Central Certification Branch WI

STC Holder: Williams Bob or Barbara PO Box 608, Udall, KS 67146, United States		If you are an STC Holder, Contact us to have your company added here!
STC No.: SA1073CE	Status: Current	App Date: 08/20/1974	Rev Date: 04/24/1979
Description: Installation of wing leading edge cuffs, Cessna drooped wing tips, stall fences, and aileron gap seals.
TC Nos.: A-799
Models: Textron Aviation Inc.170A, 170B
ACO: AIR-760: Central Certification Branch WI

STC Holder: Williams Bob or Barbara Box 431, Udall, KS 67146, United States		If you are an STC Holder, Contact us to have your company added here!
STC No.: SA495CE	Status: Current	App Date:	Rev Date: 08/24/1989
Description: Installation of Hartzell Model HC-A3XK-2B/7636D-4 or HC-A3VK-2B/V7636N-4 three-bladed propellers.
TC Nos.: 1A10
Models: Piper Aircraft Inc.PA-23-235, PA-23-250
ACO: AIR-760: Central Certification Branch WI

STC Holder: Williams Bob or Barbara PO Box 608, Udall, KS 67146, United States		If you are an STC Holder, Contact us to have your company added here!
STC No.: SA601CE	Status: Current	App Date: 10/01/1968	Rev Date: 01/28/1983
Description: Install Hartzell Model HC-C2YK-1B/7666A-2 constant speed propeller.
TC Nos.: A13CE
Models: The Cessna Aircraft Company177A
ACO: AIR-760: Central Certification Branch WI

STC Holder: Williams Bob or Barbara PO Box 608, Udall, KS 67146, United States		If you are an STC Holder, Contact us to have your company added here!
STC No.: SA902CE	Status: Current	App Date: 01/25/1973	Rev Date: 02/26/1980
Description: Install STOL kit.
TC Nos.: 3A12
Models: Cessna Aircraft Company172, 172A, 172B, 172C, 172D, 172E, 172F (USAF T-41A), 172G, 172H (USAF T-41A), 172I, 172K, 172L, 172M
ACO: AIR-760: Central Certification Branch WI

STC Holder: Williams Bob or Barbara PO Box 608, Udall, KS 67146, United States		If you are an STC Holder, Contact us to have your company added here!
STC No.: SA908CE	Status: Current	App Date: 04/27/1973	Rev Date: 04/24/1979
Description: Install STOL kit (wing leading edge cuffs, drooped tips, stall fences and aileron gap seals)
TC Nos.: A4CE
Models: Textron Aviation Inc.206, P206, P206A, P206B, P206C, P206D, P206E, TP206A, TP206B, TP206C, TP206D, TP206E, TU206A, TU206B, TU206C, TU206D, TU206E, TU206F, U206, U206A, U206B, U206C, U206D, U206E, U206F
ACO: AIR-760: Central Certification Branch WI

STC Holder: Williams Bob or Barbara PO Box 608, Udall, KS 67146, United States		If you are an STC Holder, Contact us to have your company added here!
STC No.: SA940CE	Status: Current	App Date: 06/14/1973	Rev Date: 04/24/1979
Description: Install STOL Kit (wing leading edge cuffs, drooped tips, stall fences and aileron gap seals)
TC Nos.: 3A21
Models: Textron Aviation Inc.210, 210-5 (205), 210-5A (205A), 210A, 210B, 210C, 210D, 210E, 210F, T210F
ACO: AIR-760: Central Certification Branch WI

STC Holder: Williams Bob or Barbara PO Box 608, Udall, KS 67146, United States		If you are an STC Holder, Contact us to have your company added here!
STC No.: SA949CE	Status: Current	App Date: 01/25/1973	Rev Date: 05/09/1984
Description: Install STOL kit (wing leading edge cuffs, wing tips, wing fences and aileron gap seals)
TC Nos.: 3A13
Models: Textron Aviation Inc.182, 182A, 182B, 182C, 182D, 182E, 182F, 182G, 182H, 182J, 182K, 182L, 182M, 182N, 182P, 182Q
ACO: AIR-760: Central Certification Branch WI

STC Holder: Williams Bob or Barbara PO Box 608, Udall, KS 67146, United States		If you are an STC Holder, Contact us to have your company added here!
STC No.: SA995SW	Status: Current	App Date: 03/14/1969	Rev Date: 04/27/1984
Description: Increase wing leading edge radius wing tip fairings, and landing light lens.
TC Nos.: 3A12, 3A13, 3A14, 3A17, 3A19, 3A21, 3A24, 5A2, 5A5, 5A6, A-799, A16CE, A4CE
Models: Cessna Aircraft Company140A, 150, 150A, 150B, 150C, 150D, 150E, 150F, 150G, 150H, 150J, 150K, 150L, 170, 170A, 170B, 172, 172A, 172B, 172C, 172D, 172E, 172F (USAF T-41A), 172G, 172H (USAF T-41A), 172I, 172K, 172L, 175, 175A, 175B, 175C, 180, 180A, 180B, 180C, 180D, 180E, 180F, 180G, 180H, 182, 182A, 182B, 182C, 182D, 182E, 182F, 182G, 182H, 182J, 182K, 182L, 182M, 182N, 185, 185A, 185B, 185C, 185D, 185E, 206, 207, 210, 210-5 (205), 210A, 210B, 210C, 210D, 210E, 210F, A185E, P206, P206A, P206B, P206C, P206D, P206E, T207, TP206A, TP206B, TP206C, TP206D, TP206E, TU206A, TU206B, TU206C, TU206D, TU206E, U206, U206A, U206B, U206C, U206D, U206E Regal Air Inc.305A, 305B, 305C, 305D, 305E, 305F
ACO: AIR-760: Central Certification Branch WI