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: 11

STC Holder: Howell Instruments Inc 3479 West Vickery Blvd., Fort Worth, TX 76107, United States		If you are an STC Holder, Contact us to have your company added here!
STC No.: SA2377SW	Status: Current	App Date: 02/18/1976	Rev Date: 11/09/1976
Description: Install BH185R-289 EGT temperature indicator system.
TC Nos.: A7EU
Models: Dassault AviationFan Jet Falcon
ACO: AIR-760: Central Certification Branch FTW

STC Holder: Howell Instruments Inc 3479 West Vickery Blvd., Fort Worth, TX 76107, United States		If you are an STC Holder, Contact us to have your company added here!
STC No.: SA4429SW	Status: Current	App Date: 07/07/1981	Rev Date: 02/09/2004
Description: Installation of Howell autotak RPM indicator.
TC Nos.: A3EU
Models: Beechcraft CorporationHS.125 Series 700A
ACO: AIR-760: Central Certification Branch FTW

STC Holder: Howell Instruments Inc 3479 West Vickery Blvd., Fort Worth, TX 76107, United States		If you are an STC Holder, Contact us to have your company added here!
STC No.: SA4429SW	Status: Historical	App Date:	Rev Date: 07/24/1981
Description: Installation of Howell autotak RPM indicator.
TC Nos.: A3EU
Models: Raytheon Aircraft CompanyHS.125 Series 700A
ACO: Ft. Worth ACO Branch, Tel: +1 (817) 222-5140

STC Holder: Howell Instruments Inc 3479 West Vickery Blvd., Fort Worth, TX 76107, United States		If you are an STC Holder, Contact us to have your company added here!
STC No.: SA4522SW	Status: Historical	App Date:	Rev Date: 10/30/1981
Description: Installation of Howell TGT instruments.
TC Nos.: A12EA
Models: Gulfstream Aerospace CorporationG-1159
ACO: Ft. Worth ACO Branch, Tel: +1 (817) 222-5140

STC Holder: Howell Instruments Inc 3479 West Vickery Blvd., Fort Worth, TX 76107, United States		If you are an STC Holder, Contact us to have your company added here!
STC No.: SA4522SW	Status: Current	App Date: 09/16/1981	Rev Date: 01/14/1982
Description: Installation of Howell TGT instruments.
TC Nos.: A12EA
Models: Gulfstream Aerospace CorporationG-1159
ACO: AIR-760: Central Certification Branch FTW

STC Holder: Howell Instruments Inc 3479 West Vickery Blvd., Fort Worth, TX 76107, United States		If you are an STC Holder, Contact us to have your company added here!
STC No.: SA4576SW	Status: Current	App Date:	Rev Date: 01/08/1982
Description: Howell H922-8 oil pressure (digital) and oil temperature indicators.
TC Nos.: A12EA
Models: Gulfstream Aerospace CorporationG-1159A
ACO: AIR-760: Central Certification Branch FTW

STC Holder: Howell Instruments Inc 3479 West Vickery Blvd., Fort Worth, TX 76107, United States		If you are an STC Holder, Contact us to have your company added here!
STC No.: SA4624SW	Status: Historical	App Date:	Rev Date: 03/11/1982
Description: Replace existing N1, N2 and ITT indicators with Howell autotak and autotemp indicators.
TC Nos.: A3EU
Models: Raytheon Aircraft CompanyBH.125 Series 400A, DH.125 Series 1A/S-522, DH.125 Series 3A, DH.125 Series 3A/RA, HS.125 Series 3B/RA, HS.125 Series 700B
ACO: Ft. Worth ACO Branch, Tel: +1 (817) 222-5140

STC Holder: Howell Instruments Inc 3479 West Vickery Blvd., Fort Worth, TX 76107, United States		If you are an STC Holder, Contact us to have your company added here!
STC No.: SA4624SW	Status: Current	App Date:	Rev Date: 01/05/2005
Description: Replace existing N1, N2 and ITT indicators with Howell autotak and autotemp indicators.
TC Nos.: A3EU
Models: Raytheon Aircraft CompanyBH.125 Series 400A, DH.125 Series 1A/S-522, DH.125 Series 3A, DH.125 Series 3A/RA, DH.125 Series 400A, HS.125 Series 700A
ACO: AIR-760: Central Certification Branch FTW

STC Holder: Howell Instruments Inc 3479 West Vickery Blvd., Fort Worth, TX 76107, United States		If you are an STC Holder, Contact us to have your company added here!
STC No.: SA4697SW	Status: Current	App Date: 02/19/1982	Rev Date: 06/14/1982
Description: Installation of Howell autotemp and autotak indicators.
TC Nos.: 2A4
Models: Twin Commander Aircraft LLC690, 690A, 690B
ACO: AIR-760: Central Certification Branch FTW

STC Holder: Howell Instruments Inc 3479 West Vickery Blvd., Fort Worth, TX 76107, United States		If you are an STC Holder, Contact us to have your company added here!
STC No.: SR00031NY	Status: Current	App Date:	Rev Date: 04/15/1994
Description: Installation of a Howell engine performance assurance monitoring system.
TC Nos.: H1NE
Models: Sikorsky Aircraft CorporationS-76B
ACO: AIR-760: Central Certification Branch FTW

STC Holder: Howell Instruments Inc 3479 West Vickery Blvd., Fort Worth, TX 76107, United States		If you are an STC Holder, Contact us to have your company added here!
STC No.: SR01163NY	Status: Historical	App Date: 12/20/1999	Rev Date: 11/25/2002
Description: Installation of Howell H2949-501 Engine Indicator/Monitor.
TC Nos.: H9EU
Models: Eurocopter FranceAS-350B, AS-350B1, AS-350B2, AS-350BA
ACO: New York ACO Branch, Tel: +1 (516) 228-7300