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: 20

STC Holder: Gifton McCreary P.O. Box 157686, Irving, TX 75015, United States		If you are an STC Holder, Contact us to have your company added here!
STC No.: SE2500SW	Status: Historical	App Date:	Rev Date: 07/27/1987
Description: Modification to higher compression ratio.
TC Nos.: E-279
Models: Textron Lycoming AVCO CorporationVO-435-A1E, VO-435-A1F
ACO: Ft. Worth ACO Branch, Tel: +1 (817) 222-5140

STC Holder: Gifton McCreary P.O. Box 157686, Irving, TX 75015, United States		If you are an STC Holder, Contact us to have your company added here!
STC No.: SH1007SW	Status: Historical	App Date:	Rev Date: 07/27/1987
Description: Modify tail rotor pitch change mechanism to add duplex bearing, (P/N 47-641-131-1) in place of single row bearing.
TC Nos.: H-1
Models: Bell Helicopter Textron47D1 Series, 47G Series, 47G-2 (USAF H-13H)
ACO: Ft. Worth ACO Branch, Tel: +1 (817) 222-5140

STC Holder: Gifton McCreary P.O. Box 157686, Irving, TX 75015, United States		If you are an STC Holder, Contact us to have your company added here!
STC No.: SH1170SW	Status: Historical	App Date:	Rev Date: 07/15/1994
Description: Installation of tail rotor gear box no. 47-640-065-31 and tail rotor hub and blade assembly no. 47-640-071-3.
TC Nos.: H-1
Models: Bell Helicopter Textron47G Series
ACO: Ft. Worth ACO Branch, Tel: +1 (817) 222-5140

STC Holder: Gifton McCreary P.O. Box 157686, Irving, TX 75015, United States		If you are an STC Holder, Contact us to have your company added here!
STC No.: SH13WE	Status: Historical	App Date:	Rev Date: 07/27/1987
Description: Conversion of Bell Model 47D-1 to(1) Model 47G-2.
TC Nos.: H-1
Models: Bell Helicopter Textron47D1 Series
ACO: Ft. Worth ACO Branch, Tel: +1 (817) 222-5140

STC Holder: Gifton McCreary P.O. Box 157686, Irving, TX 75015, United States		If you are an STC Holder, Contact us to have your company added here!
STC No.: SH161WE	Status: Historical	App Date:	Rev Date: 12/12/1995
Description: Installation of exhaust muffler assembly.
TC Nos.: 2H3
Models: Bell Helicopter Textron47G-2A, 47G-2A-1, 47G-5, 47G-5A
ACO: Ft. Worth ACO Branch, Tel: +1 (817) 222-5140

STC Holder: Gifton McCreary P.O. Box 157686, Irving, TX 75015, United States		If you are an STC Holder, Contact us to have your company added here!
STC No.: SH162WE	Status: Historical	App Date:	Rev Date: 12/12/1995
Description: Installation of exhaust muffler assembly.
TC Nos.: 2H3
Models: Bell Helicopter Textron47G-4, 47G-4A
ACO: Ft. Worth ACO Branch, Tel: +1 (817) 222-5140

STC Holder: Gifton McCreary P.O. Box 157686, Irving, TX 75015, United States		If you are an STC Holder, Contact us to have your company added here!
STC No.: SH213WE	Status: Historical	App Date:	Rev Date: 12/12/1995
Description: Installation of exhaust muffler assembly.
TC Nos.: H-1
Models: Bell Helicopter Textron47D1 Series, 47G Series
ACO: Ft. Worth ACO Branch, Tel: +1 (817) 222-5140

STC Holder: Gifton McCreary P.O. Box 157686, Irving, TX 75015, United States		If you are an STC Holder, Contact us to have your company added here!
STC No.: SH2348SW	Status: Historical	App Date:	Rev Date: 07/27/1987
Description: Installation of redesigned sprag system. (US ARMY OH-13E Mark5A) (US ARMY OH-13H Mark5A)
TC Nos.: 2H3, H5SW, H7SW
Models: Bell Helicopter Textron47G-2A, 47G-2A-1, 47G-3B, 47G-3B-1 (TH-13T), 47G-3B-2, 47G-4, 47G-4A, U.S. Army OH-13E, US Army OH-13H
ACO: Ft. Worth ACO Branch, Tel: +1 (817) 222-5140

STC Holder: Gifton McCreary P.O. Box 157686, Irving, TX 75015, United States		If you are an STC Holder, Contact us to have your company added here!
STC No.: SH2772SW	Status: Historical	App Date:	Rev Date: 10/14/1994
Description: Revise mast controls and remove stabilizer bar and install control system.
TC Nos.: 2H3, H-1, H2SW
Models: Bell Helicopter Textron47 Series, 47D1 Series, 47G-2A, 47G-2A-1, 47G-3 (OH-13H), 47G-3B, 47G-3B-1 (TH-13T), 47G-3B-2, 47G-3B-2A, 47G-4, 47G-4A, 47G-5, 47G-5A Bell Helicopter Textron (Canada)206B
ACO: Ft. Worth ACO Branch, Tel: +1 (817) 222-5140

STC Holder: Gifton McCreary P.O. Box 157686, Irving, TX 75015, United States		If you are an STC Holder, Contact us to have your company added here!
STC No.: SH283SW	Status: Historical	App Date:	Rev Date: 07/27/1987
Description: Change battery location from dual positions in aft and forward to one fixed position under oil cooler on center frame bottom tubes and installation of ballast.
TC Nos.: H-1
Models: Bell Helicopter Textron47D1 Series
ACO: Ft. Worth ACO Branch, Tel: +1 (817) 222-5140

STC Holder: Gifton McCreary P.O. Box 157686, Irving, TX 75015, United States		If you are an STC Holder, Contact us to have your company added here!
STC No.: SH307SW	Status: Historical	App Date:	Rev Date: 08/02/1994
Description: Installation of Lycoming VO-540- B1 B3 engine.
TC Nos.: 2H3
Models: Bell Helicopter Textron47G-2A
ACO: Ft. Worth ACO Branch, Tel: +1 (817) 222-5140

STC Holder: Gifton McCreary P.O. Box 157686, Irving, TX 75015, United States		If you are an STC Holder, Contact us to have your company added here!
STC No.: SH397SW	Status: Historical	App Date:	Rev Date: 07/27/1987
Description: Installation of hydraulic boost kit.
TC Nos.: H-1
Models: Bell Helicopter Textron47D1 Series
ACO: Ft. Worth ACO Branch, Tel: +1 (817) 222-5140

STC Holder: Gifton McCreary P.O. Box 157686, Irving, TX 75015, United States		If you are an STC Holder, Contact us to have your company added here!
STC No.: SH529SW	Status: Historical	App Date:	Rev Date: 07/27/1987
Description: Installation of Franklin6V-350-A engine.
TC Nos.: H-1
Models: Bell Helicopter Textron47D1 Series
ACO: Ft. Worth ACO Branch, Tel: +1 (817) 222-5140

STC Holder: Gifton McCreary P.O. Box 157686, Irving, TX 75015, United States		If you are an STC Holder, Contact us to have your company added here!
STC No.: SH588SW	Status: Historical	App Date:	Rev Date: 07/27/1987
Description: Conversion to single-place cabin, without doors, revised cyclic and collective and throttle controls, rerouted electrical wiring.
TC Nos.: H-1
Models: Bell Helicopter Textron47D1 Series, 47G-2 (USAF H-13H)
ACO: Ft. Worth ACO Branch, Tel: +1 (817) 222-5140

STC Holder: Gifton McCreary P.O. Box 157686, Irving, TX 75015, United States		If you are an STC Holder, Contact us to have your company added here!
STC No.: SH611SW	Status: Historical	App Date:	Rev Date: 07/27/1987
Description: Left and right door with tinted glass and sliding window.
TC Nos.: 2H3, H-1
Models: Bell Helicopter Textron47 Series, 47D1 Series, 47G-2A, 47G-3 (OH-13H), 47G-4
ACO: Ft. Worth ACO Branch, Tel: +1 (817) 222-5140

STC Holder: Gifton McCreary P.O. Box 157686, Irving, TX 75015, United States		If you are an STC Holder, Contact us to have your company added here!
STC No.: SH752SW	Status: Historical	App Date:	Rev Date: 07/27/1987
Description: Centerframe modification or replacement installation of Lycoming VO-435 engine in lieu of Franklin installation and optional lateral control system.
TC Nos.: H-1
Models: Bell Helicopter Textron47D1 Series, 47G Series
ACO: Ft. Worth ACO Branch, Tel: +1 (817) 222-5140

STC Holder: Gifton McCreary P.O. Box 157686, Irving, TX 75015, United States		If you are an STC Holder, Contact us to have your company added here!
STC No.: SH888SW	Status: Historical	App Date:	Rev Date: 07/27/1987
Description: Use of spacer in lieu of snap ring on tail rotor drive quill.
TC Nos.: H-1
Models: Bell Helicopter Textron47D1 Series, 47G Series
ACO: Ft. Worth ACO Branch, Tel: +1 (817) 222-5140

STC Holder: Gifton McCreary P.O. Box 157686, Irving, TX 75015, United States		If you are an STC Holder, Contact us to have your company added here!
STC No.: SH909SW	Status: Historical	App Date:	Rev Date: 07/27/1987
Description: Installation of Franklin 6V-350-A engine, derated to 200 HP.
TC Nos.: H-1
Models: Bell Helicopter Textron47H-1
ACO: Ft. Worth ACO Branch, Tel: +1 (817) 222-5140

STC Holder: Gifton McCreary P.O. Box 157686, Irving, TX 75015, United States		If you are an STC Holder, Contact us to have your company added here!
STC No.: SH963SW	Status: Historical	App Date:	Rev Date: 07/27/1987
Description: Installation of Bell Model 47G-2A-13-place wide cabin on the Bell Model 47G-5, retaining the 47G-5 instruments and pedestal.
TC Nos.: 2H3
Models: Bell Helicopter Textron47G-5
ACO: Ft. Worth ACO Branch, Tel: +1 (817) 222-5140

STC Holder: Gifton McCreary P.O. Box 157686, Irving, TX 75015, United States		If you are an STC Holder, Contact us to have your company added here!
STC No.: SH972SW	Status: Historical	App Date:	Rev Date: 07/27/1987
Description: Installation of copilot's rudder pedals.
TC Nos.: 2H3, H-1
Models: Bell Helicopter Textron47 Series, 47D1 Series, 47G-2A, 47G-2A-1, 47G-3 (OH-13H), 47G-3B, 47G-3B-2, 47G-4, 47G-4A, 47G-5, 47H-1
ACO: Ft. Worth ACO Branch, Tel: +1 (817) 222-5140