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No. of STCs: 13

STC Holder: Barbara or Bob Williams Box 431, 213 N. Clark, Udall, KS 67146, United States		If you are an STC Holder, Contact us to have your company added here!
STC No.: SA1004CE	Status: Historical	App Date: 01/25/1973	Rev Date: 09/09/1974
Description: Install STOL kit.
TC Nos.: 5A6
Models: Textron Aviation Inc.180, 180A, 180B, 180C, 180D, 180E, 180F, 180G, 180H
ACO: Wichita ACO Branch, Tel: +1 (316) 946-4100

STC Holder: Barbara or Bob Williams Box 431, 213 N. Clark, Udall, KS 67146, United States		If you are an STC Holder, Contact us to have your company added here!
STC No.: SA1355SW	Status: Current	App Date: 07/12/1971	Rev Date: 09/05/1979
Description: Installation of wing leading edge cuff to increase leading edge radius.
TC Nos.: A9CE
Models: Textron Aviation Inc.188, 188A, A188, A188A
ACO: AIR-760: Central Certification Branch WI

STC Holder: Barbara or Bob Williams Box 431, 213 N. Clark, Udall, KS 67146, United States		If you are an STC Holder, Contact us to have your company added here!
STC No.: SA1373SW	Status: Current	App Date: 07/12/1971	Rev Date: 09/05/1979
Description: Installation of fairing on wing strut intersection.
TC Nos.: A9CE
Models: Textron Aviation Inc.188, 188A, A188, A188A
ACO: AIR-760: Central Certification Branch WI

STC Holder: Barbara or Bob Williams Box 431, 213 N. Clark, Udall, KS 67146, United States		If you are an STC Holder, Contact us to have your company added here!
STC No.: SA1402CE	Status: Current	App Date: 02/13/1978	Rev Date: 09/05/1979
Description: Installation of wing stall fences and aileron gap seals.
TC Nos.: 3A12
Models: Textron Aviation Inc.172M, 172N
ACO: AIR-760: Central Certification Branch WI

STC Holder: Barbara or Bob Williams Box 431, 213 N. Clark, Udall, KS 67146, United States		If you are an STC Holder, Contact us to have your company added here!
STC No.: SA1403CE	Status: Current	App Date: 08/23/1977	Rev Date: 09/05/1979
Description: Installation of wing stall fences and aileron gap seals.
TC Nos.: 3A13
Models: Textron Aviation Inc.182P, 182Q
ACO: AIR-760: Central Certification Branch WI

STC Holder: Barbara or Bob Williams Box 431, 213 N. Clark, Udall, KS 67146, United States		If you are an STC Holder, Contact us to have your company added here!
STC No.: SA1420CE	Status: Current	App Date: 05/05/1978	Rev Date: 09/05/1979
Description: Installation of wing leading edge cuffs(with or without de-icer boots) and wing stall fences.
TC Nos.: 3A21
Models: Textron Aviation Inc.210N, P210N, T210N
ACO: AIR-760: Central Certification Branch WI

STC Holder: Barbara or Bob Williams Box 431, 213 N. Clark, Udall, KS 67146, United States		If you are an STC Holder, Contact us to have your company added here!
STC No.: SA1875SW	Status: Current	App Date: 04/22/1974	Rev Date: 09/15/1979
Description: Installation of wing edge leading cuffs, wing tips, vortex generators on fuselage and fairing on vertical tails.
TC Nos.: A2CE
Models: The Cessna Aircraft Company336
ACO: AIR-760: Central Certification Branch WI

STC Holder: Barbara or Bob Williams Box 431, 213 N. Clark, Udall, KS 67146, United States		If you are an STC Holder, Contact us to have your company added here!
STC No.: SA1898SW	Status: Current	App Date: 06/12/1974	Rev Date: 09/05/1979
Description: Installation of wing leading edge cuff, flow fences, optional wing tips and dorsal fin.
TC Nos.: 2A13
Models: Piper Aircraft Inc.PA-28-140, PA-28-150, PA-28-160, PA-28-180, PA-28-235, PA-28R-180, PA-28R-200
ACO: AIR-760: Central Certification Branch WI

STC Holder: Barbara or Bob Williams Box 431, 213 N. Clark, Udall, KS 67146, United States		If you are an STC Holder, Contact us to have your company added here!
STC No.: SA420CE	Status: Current	App Date: 01/28/1966	Rev Date: 10/31/1986
Description: Installation of 0-360-( ) series engines, fixed pitch and constant speed propellers
TC Nos.: 3A12
Models: Cessna Aircraft Company172, 172A, 172B, 172C, 172D, 172E, 172F (USAF T-41A), 172G, 172H (USAF T-41A)
ACO: AIR-760: Central Certification Branch WI

STC Holder: Barbara or Bob Williams Box 431, Udall, KS 67146		If you are an STC Holder, Contact us to have your company added here!
STC No.: SA424CE	Status: Current	App Date: 01/28/1966	Rev Date: 09/05/1979
Description: Installation of Lycoming 0-360- ( ) engine and Hartzell HC-C2YK-1N7666-2, HC-92ZK-8D/8447-12A or McCauley 2D36Cl4/7BKM-4 propeller or McCauley or Sensenich fixed pitched propeller. *Landplane only
TC Nos.: 3A17
Models: Textron Aviation Inc.175C, P172D The Cessna Aircraft Company175, 175A, 175B
ACO: AIR-760: Central Certification Branch WI

STC Holder: Barbara or Bob Williams Box 431, 213 N. Clark, Udall, KS 67146, United States		If you are an STC Holder, Contact us to have your company added here!
STC No.: SA596WE	Status: Current	App Date: 01/02/1964	Rev Date: 09/05/1979
Description: Installation of Doyn Aircraft Company kit per STC SA3-571.
TC Nos.: 3A12
Models: Textron Aviation Inc.172D, 172E
ACO: AIR-760: Central Certification Branch WI

STC Holder: Barbara or Bob Williams Box 431, 213 N. Clark, Udall, KS 67146, United States		If you are an STC Holder, Contact us to have your company added here!
STC No.: SA647CE	Status: Current	App Date: 01/15/1969	Rev Date: 09/05/1979
Description: Installation of Lycoming O-360-A1A 180 h.p. engine and constant speed propeller.
TC Nos.: 3A12
Models: Textron Aviation Inc.172I, 172K, 172L, 172M, 172N
ACO: AIR-760: Central Certification Branch WI

STC Holder: Barbara or Bob Williams Box 431, 213 N. Clark, Udall, KS 67146, United States		If you are an STC Holder, Contact us to have your company added here!
STC No.: SA944CE	Status: Current	App Date: 06/14/1973	Rev Date: 04/24/1979
Description: Install STOL kit
TC Nos.: 3A19
Models: Textron Aviation Inc.150, 150A, 150B, 150C, 150D, 150E, 150F, 150G, 150H, 150J, 150K, 150L
ACO: AIR-760: Central Certification Branch WI