STC Holder: Ontic Engineering and Manufacturing Inc.

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: 68

STC Holder: Ontic Engineering and Manufacturing Inc. 1176 Telecom Drive, Creedmoor, NC 27522, United States		If you are an STC Holder, Contact us to have your company added here!
STC No.: SA09111AC	Status: Current	App Date: 02/27/1995	Rev Date: 03/17/2022
Description: Installation of Concorde RG390ES sealed lead-acid battiers.
TC Nos.: A8SW
Models: M7 Aerospace LLCSA226-TC, SA227-AC (C-26A), SA227-BC (C-26A)
ACO: AIR-750: East Certification Branch ATL

STC Holder: Ontic Engineering and Manufacturing Inc. 1176 Telecom Drive, Creedmoor, NC 27522, United States		If you are an STC Holder, Contact us to have your company added here!
STC No.: SA09169AC	Status: Current	App Date: 07/14/1995	Rev Date: 03/17/2022
Description: Installation of Concorde RG390ES sealed lead-acid batteries.
TC Nos.: A18SW
Models: M7 Aerospace LLCSA227-CC, SA227-DC (C-26B)
ACO: AIR-750: East Certification Branch ATL

STC Holder: Ontic Engineering and Manufacturing Inc. 1176 Telecom Drive, Creedmoor, NC 27522, United States		If you are an STC Holder, Contact us to have your company added here!
STC No.: SA09170AC	Status: Current	App Date: 07/14/1995	Rev Date: 03/17/2022
Description: Installation of Concorde RG390ES sealed lead-acid batteries
TC Nos.: A5SW
Models: M7 Aerospace LLCSA226-AT, SA226-T, SA227-AT
ACO: AIR-750: East Certification Branch ATL

STC Holder: Ontic Engineering and Manufacturing Inc. 1176 Telecom Drive, Creedmoor, NC 27522, United States		If you are an STC Holder, Contact us to have your company added here!
STC No.: SA09463AC	Status: Current	App Date: 04/17/1998	Rev Date: 03/17/2022
Description: Installation of Concorde FASRG91STC sealed lead-acid batteries.
TC Nos.: A5SW
Models: M7 Aerospace LLCSA226-T, SA226-T(B), SA227-TT
ACO: AIR-750: East Certification Branch ATL

STC Holder: Ontic Engineering and Manufacturing Inc. 20400 Plummer Street, Chatsworth, CA 91311, United States		If you are an STC Holder, Contact us to have your company added here!
STC No.: SA1019GL	Status: Current	App Date: 04/18/1986	Rev Date: 04/30/2007
Description: Installation of Woodward P/N A213796 control box, electrical connector, and remote switch.
TC Nos.: 3A20, A14CE, A21EU, A24CE, A31CE, A5SW, A8SW
Models: British Aerospace (Scotland)Jetstream Series 3101 Hawker Beechcraft Corporation200, 200C, 200CT, 200T, C90, E90 M7 Aerospace LPSA227-AC (C-26A), SA227-AT, SA227-TT Raytheon Aircraft CompanyA100, B100, F90
ACO: AIR-770: West Certification Branch LA

STC Holder: Ontic Engineering and Manufacturing Inc. 20400 Plummer Street, Chatsworth, CA 91311, United States		If you are an STC Holder, Contact us to have your company added here!
STC No.: SA1020GL	Status: Current	App Date: 04/18/1986	Rev Date: 04/30/2007
Description: Removal of P/N 213762 propeller synchrophaser control box and electrical connector, and installation of P/N A213796 control box, and electrical connector.
TC Nos.: A23CE
Models: Raytheon Aircraft Company58P, 58TC
ACO: AIR-770: West Certification Branch LA

STC Holder: Ontic Engineering and Manufacturing Inc. 20360 Plummer Street, Chatsworth, CA 91311, United States		If you are an STC Holder, Contact us to have your company added here!
STC No.: SA1020GL	Status: Historical	App Date: 04/18/1986	Rev Date: 02/12/2007
Description: Removal of P/N 213762 propeller synchrophaser control box and electrical connector and installation of P/N A213796 control box and electrical connector on model 58TC and P/N A213807 control box and electrical connector on model 58P.
TC Nos.: A23CE
Models: Raytheon Aircraft Company58P, 58TC
ACO: Los Angeles ACO Branch, Tel: +1 (562) 627-5200

STC Holder: Ontic Engineering and Manufacturing Inc. 20360 Plummer Street, Chatsworth, CA 91311, United States		If you are an STC Holder, Contact us to have your company added here!
STC No.: SA1021GL	Status: Current	App Date: 04/18/1986	Rev Date: 11/23/2004
Description: Removal of TC P/N 213762 propeller synchrophaser control box and electrical connector and installation of P/N A213796.
TC Nos.: A24CE
Models: Beechcraft Corporation200, 200C, 200CT, 200T
ACO: AIR-770: West Certification Branch LA

STC Holder: Ontic Engineering and Manufacturing Inc. 20360 Plummer Street, Chatsworth, CA 91311, United States		If you are an STC Holder, Contact us to have your company added here!
STC No.: SA1022GL	Status: Current	App Date: 04/18/1986	Rev Date: 11/23/2004
Description: Removal of T.C. P/N 213762 propeller synchrophaser control box and electrical connector and installation of P/N A213796.
TC Nos.: 3A20
Models: Beechcraft CorporationC90, E90
ACO: AIR-770: West Certification Branch LA

STC Holder: Ontic Engineering and Manufacturing Inc. 20360 Plummer Street, Chatsworth, CA 91311, United States		If you are an STC Holder, Contact us to have your company added here!
STC No.: SA1023GL	Status: Current	App Date: 04/18/1986	Rev Date: 11/23/2004
Description: Installation of P/N A213796 control box, electrical connector, and remote switch.
TC Nos.: A5SW
Models: M7 Aerospace LLCSA227-AT, SA227-TT
ACO: AIR-770: West Certification Branch LA

STC Holder: Ontic Engineering and Manufacturing Inc. 20360 Plummer Street, Chatsworth, CA 91311, United States		If you are an STC Holder, Contact us to have your company added here!
STC No.: SA1024GL	Status: Current	App Date: 04/18/1986	Rev Date: 11/23/2004
Description: Removal of T.C. P/N 213762 propeller synchrophaser control box and electrical connector and installation of P/N A213796.
TC Nos.: A31CE
Models: Beechcraft CorporationF90
ACO: AIR-770: West Certification Branch LA

STC Holder: Ontic Engineering and Manufacturing Inc. 20400 Plummer Street, Chatsworth, CA 91311, United States		If you are an STC Holder, Contact us to have your company added here!
STC No.: SA1025GL	Status: Current	App Date: 04/18/1986	Rev Date: 11/23/2004
Description: Removal of T.C. P/N 213762 propeller synchrophaser control box and electrical connector and installation of P/N A213796.
TC Nos.: A14CE
Models: Beechcraft CorporationA100, B100
ACO: AIR-770: West Certification Branch LA

STC Holder: Ontic Engineering and Manufacturing Inc. 1176 Telecom Drive, Creedmoor, NC 27522, United States		If you are an STC Holder, Contact us to have your company added here!
STC No.: SA10352SC	Status: Current	App Date: 07/28/2004	Rev Date: 03/17/2022
Description: Installation of an Aviation Communication & Surveillance Systems (ACSS) TCAS II, dual ACSS Mode-S transponders and dual Sextant VSI/TCAS display
TC Nos.: A18SW, A8SW
Models: M7 Aerospace LLCSA227-AC (C-26A), SA227-BC (C-26A), SA227-CC, SA227-DC (C-26B)
ACO: AIR-750: East Certification Branch ATL

STC Holder: Ontic Engineering and Manufacturing Inc. 20400 Plummer Street, Chatsworth, CA 91311, United States		If you are an STC Holder, Contact us to have your company added here!
STC No.: SA1054GL	Status: Current	App Date: 07/03/1986	Rev Date: 04/30/2007
Description: Removal of P/N 213763 propeller synchrophaser control box and electrical connector, and installation of P/N A213796 control box, electrical connector, and remote switch.
TC Nos.: A-783
Models: Frakes AviationG-73
ACO: AIR-770: West Certification Branch LA

STC Holder: Ontic Engineering and Manufacturing Inc. 20400 Plummer Street, Chatsworth, CA 91311, United States		If you are an STC Holder, Contact us to have your company added here!
STC No.: SA1055GL	Status: Current	App Date: 07/03/1986	Rev Date: 11/23/2004
Description: Removal of TC P/N 213761 or213763 propeller synchrophaser control box and electrical connector and installation of P/N A213796 control box, electrical connector, and remote switch.
TC Nos.: A21EU
Models: British Aerospace (Scotland)HP Jetstream Model 3101
ACO: AIR-770: West Certification Branch LA

STC Holder: Ontic Engineering and Manufacturing Inc. 1176 Telecom Drive, Creedmoor, NC 27522		If you are an STC Holder, Contact us to have your company added here!
STC No.: SA1470SO	Status: Current	App Date: 05/12/1983	Rev Date: 04/26/2012
Description: Installation of Lear Siegler 400 AMP starter generator control unit P/N 51539-0065.
TC Nos.: A5SW
Models: Fairchild Aircraft CorporationSA227-AT, SA227-TT
ACO: AIR-750: East Certification Branch ATL

STC Holder: Ontic Engineering and Manufacturing Inc. 1176 Telecom Drive, Creedmoor, NC 27522, United States		If you are an STC Holder, Contact us to have your company added here!
STC No.: SA1528SO	Status: Current	App Date: 08/29/1983	Rev Date: 03/17/2022
Description: Installation of Litton LTN 72R inertial navigation system utilizing software program 72-7 supplement 72-19 installed
TC Nos.: A5SW
Models: M7 Aerospace LLCSA227-AT
ACO: AIR-750: East Certification Branch ATL

STC Holder: Ontic Engineering and Manufacturing Inc. 1176 Telecom Drive, Creedmoor, NC 27522, United States		If you are an STC Holder, Contact us to have your company added here!
STC No.: SA1529SO	Status: Current	App Date: 08/29/1983	Rev Date: 03/17/2022
Description: Installation of Foster Airdata RNAV 612 area navigation system
TC Nos.: A5SW
Models: M7 Aerospace LLCSA227-AT
ACO: AIR-750: East Certification Branch ATL

STC Holder: Ontic Engineering and Manufacturing Inc. 1176 Telecom Drive, Creedmoor, NC 27522, United States		If you are an STC Holder, Contact us to have your company added here!
STC No.: SA1530SO	Status: Current	App Date: 08/29/1983	Rev Date: 06/28/2012
Description: Installation of Global GNS-500 Series 3C VLF/Omega Navigation System utilizing software program 3C-FE9F/E
TC Nos.: A5SW
Models: M7 Aerospace LLCSA227-AT
ACO: AIR-750: East Certification Branch ATL

STC Holder: Ontic Engineering and Manufacturing Inc. 20400 Plummer Street, Chatsworth, CA 91311, United States		If you are an STC Holder, Contact us to have your company added here!
STC No.: SA166CE	Status: Current	App Date: 09/05/1963	Rev Date: 04/30/2007
Description: Twin-engine electronic synchronizer and unfeathering system.
TC Nos.: 5A4
Models: Raytheon Aircraft CompanyB50
ACO: AIR-770: West Certification Branch LA

STC Holder: Ontic Engineering and Manufacturing Inc. 20400 Plummer Street, Chatsworth, CA 91311, United States		If you are an STC Holder, Contact us to have your company added here!
STC No.: SA167CE	Status: Current	App Date: 09/05/1963	Rev Date: 04/30/2007
Description: Electronic synchronizer kit.
TC Nos.: 5A4
Models: Raytheon Aircraft CompanyC50
ACO: AIR-770: West Certification Branch LA

STC Holder: Ontic Engineering and Manufacturing Inc. 20400 Plummer Street, Chatsworth, CA 91311, United States		If you are an STC Holder, Contact us to have your company added here!
STC No.: SA168CE	Status: Current	App Date: 08/28/1963	Rev Date: 04/30/2007
Description: Twin engine synchronizer.
TC Nos.: 6A1
Models: Twin Commander Aircraft Corporation500-B
ACO: AIR-770: West Certification Branch LA

STC Holder: Ontic Engineering and Manufacturing Inc. 20400 Plummer Street, Chatsworth, CA 91311, United States		If you are an STC Holder, Contact us to have your company added here!
STC No.: SA174CE	Status: Current	App Date: 11/18/1964	Rev Date: 04/30/2007
Description: Twin-engine electronic sychronizer for aircraft equipped with Hartzell propellers.
TC Nos.: A-765
Models: Raytheon Aircraft CompanyC-45G, D18S, E18S-9700, G18S, H18
ACO: AIR-770: West Certification Branch LA

STC Holder: Ontic Engineering and Manufacturing Inc. 20400 Plummer Street, Chatsworth, CA 91311, United States		If you are an STC Holder, Contact us to have your company added here!
STC No.: SA188CE	Status: Current	App Date: 12/05/1963	Rev Date: 04/30/2007
Description: Twin-engine synchronizer.
TC Nos.: 3A20
Models: Raytheon Aircraft Company65, 65-80, 65-A80
ACO: AIR-770: West Certification Branch LA

STC Holder: Ontic Engineering and Manufacturing Inc. 20360 Plummer Street, Chatsworth, CA 91311, United States		If you are an STC Holder, Contact us to have your company added here!
STC No.: SA20GL	Status: Historical	App Date: 03/24/1972	Rev Date: 06/17/2005
Description: Installation of Woodward Type II electronic propeller synchronizer or synchrophaser system. (G-44A MODIFIED COLEMILL - STC 2-13) (500-A modified - Colemill STC SA340SO)
TC Nos.: 1A10, 3A10, 3A25, 6A1, A-734, A11EU, A12SW, A17EU, A23EU, A23SO, A25CE, A2CE, A31EU, A6CE, A7CE, A7SO
Models: B-N Group Ltd.BN-2, BN-2A, BN-2A-2, BN-2A-20, BN-2A-21, BN-2A-26, BN-2A-27, BN-2A-3, BN-2A-6, BN-2A-8, BN-2A-9 British Aerospace (Scotland)B.206 Series 2 Gulfstream Aerospace CorporationG-44 Series, G-44A Partenavia Costruzioni Aeronauticas S.p.A.P68 TC "Observer", P68C, P68C-TC Reims Aviation S.A.F337E, F337F, F337G, FT337E, FT337F, FT337GP The Cessna Aircraft Company310, 310A (USAF U-3A), 310B, 310C, 310D, 310E (USAF U-3B), 310F, 310G, 310H, 310I, 310J, 310K, 310L, 310N, 310P, 310Q, 320, 320A, 320B, 320C, 320D, 320E, 320F, 336, 337, 337B, 337C, 337D, 337E, 337F, 337G, 337H, 340, 340A, 401, 401A, 401B, 402, 402A, 402B, 402C, 404, 411, 411A, 414, 414A, 421, 421A, 421B, 421C, P337H, T310P, T310Q, T310R, T337B, T337C, T337D, T337E, T337F, T337G, T337H The New Piper Aircraft Inc.PA-23-250, PA-34-200T, PA-42, PA-E23-250 Twin Commander Aircraft Corporation500-A, 500-B, 500-S, 500-U, 700
ACO: Los Angeles ACO Branch, Tel: +1 (562) 627-5200

STC Holder: Ontic Engineering and Manufacturing Inc. 20400 Plummer Street, Chatsworth, CA 91311, United States		If you are an STC Holder, Contact us to have your company added here!
STC No.: SA20GL	Status: Current	App Date: 03/24/1972	Rev Date: 04/30/2007
Description: Installation of Woodward Type II electronic propeller synchronizer or synchrophaser system. (G-44A MODIFIED COLEMILL - STC 2-13) (500-A modified - Colemill STC SA340SO)
TC Nos.: 1A10, 3A10, 3A25, 6A1, A-734, A11EU, A12SW, A17EU, A23EU, A23SO, A25CE, A2CE, A31EU, A6CE, A7CE, A7SO
Models: B-N Group Ltd.BN-2, BN-2A, BN-2A-2, BN-2A-20, BN-2A-21, BN-2A-26, BN-2A-27, BN-2A-3, BN-2A-6, BN-2A-8, BN-2A-9 British Aerospace (Scotland)B.206 Series 2 Gulfstream Aerospace CorporationG-44 Series, G-44A Partenavia Costruzioni Aeronauticas S.p.A.P68 TC "Observer", P68C, P68C-TC Reims Aviation S.A.F337E, F337F, F337G, FT337E, FT337F, FT337GP The Cessna Aircraft Company310, 310A (USAF U-3A), 310B, 310C, 310D, 310E (USAF U-3B), 310F, 310G, 310H, 310I, 310J, 310K, 310L, 310N, 310P, 310Q, 320, 320A, 320B, 320C, 320D, 320E, 320F, 336, 337, 337B, 337C, 337D, 337E, 337F, 337G, 337H, 340, 340A, 401, 401A, 401B, 402, 402A, 402B, 402C, 404, 411, 411A, 414, 414A, 421, 421A, 421B, 421C, P337H, T310P, T310Q, T310R, T337B, T337C, T337D, T337E, T337F, T337G, T337H The New Piper Aircraft Inc.PA-23-250, PA-34-200T, PA-42, PA-E23-250 Twin Commander Aircraft Corporation500-A, 500-B, 500-S, 500-U, 700
ACO: AIR-770: West Certification Branch LA

STC Holder: Ontic Engineering and Manufacturing Inc. 20400 Plummer Street, Chatsworth, CA 91311, United States		If you are an STC Holder, Contact us to have your company added here!
STC No.: SA213CE	Status: Current	App Date: 12/13/1963	Rev Date: 04/30/2007
Description: Twin-engine electronic sychronizer.
TC Nos.: 5A4
Models: Raytheon Aircraft CompanyJ50
ACO: AIR-770: West Certification Branch LA

STC Holder: Ontic Engineering and Manufacturing Inc. 20400 Plummer Street, Chatsworth, CA 91311, United States		If you are an STC Holder, Contact us to have your company added here!
STC No.: SA231CE	Status: Current	App Date: 03/06/1964	Rev Date: 04/30/2007
Description: Twin engine synchronizer.
TC Nos.: 2A4
Models: Twin Commander Aircraft Corporation560-F, 680-F, 680-FL
ACO: AIR-770: West Certification Branch LA

STC Holder: Ontic Engineering and Manufacturing Inc. 20400 Plummer Street, Chatsworth, CA 91311, United States		If you are an STC Holder, Contact us to have your company added here!
STC No.: SA250CE	Status: Current	App Date: 06/02/1964	Rev Date: 04/30/2007
Description: Installation of Woodward electronic propeller synchraphaser system.
TC Nos.: 2A4, 3A10, 3A16, 3A20, 3A25, 5A4, 6A1, A-765, A12CE, A14CE, A2CE, A2PC, A31CE, A6CE, A7CE, A8EA, A9EA
Models: Bombardier Inc.DHC-6-1, DHC-6-100, DHC-6-200, DHC-6-300 Mitsubishi Heavy Industries Ltd.MU-2B-10, MU-2B-15, MU-2B-20, MU-2B-25, MU-2B-26, MU-2B-30, MU-2B-35, MU-2B-36 Raytheon Aircraft Company58, 58A, 65, 65-80, 65-88, 65-90, 65-A80, 65-B80, 70, 95, 100, 95-55, 95-A55, 95-B55, 99, 99A, A100, A60, A65, A99, A99A, B100, B90, B95, B95A, B99, C-45G, C90, D18S, D95A, E18S-9700, E90, F90, G18S, G50, H18, H50, J50 The Cessna Aircraft Company310D, 310E, 310H, 310I, 310J, 310K, 310L, 310N, 310P, 310Q, 320D, 336, 337, 340, 401, 402, 411, 414, 421, E310H The New Piper Aircraft Inc.PA-31P, PA-31T Twin Commander Aircraft Corporation500-B, 500-S, 500-U, 560-A, 560-E, 560-F, 680, 680-E, 680-F, 680-FL, 680-FL(P), 685, 690, 690A, 720
ACO: AIR-770: West Certification Branch LA

STC Holder: Ontic Engineering and Manufacturing Inc. 20360 Plummer Street, Chatsworth, CA 91311, United States		If you are an STC Holder, Contact us to have your company added here!
STC No.: SA250CE	Status: Historical	App Date: 06/02/1964	Rev Date: 06/24/2005
Description: Installation of Woodward electronic propeller synchraphaser system.
TC Nos.: 2A4, 3A10, 3A16, 3A20, 3A25, 5A4, 6A1, A-765, A12CE, A14CE, A2CE, A2PC, A31CE, A6CE, A7CE, A8EA, A9EA
Models: Bombardier Inc.DHC-6-1, DHC-6-100, DHC-6-200, DHC-6-300 Mitsubishi Heavy Industries Ltd.MU-2B-10, MU-2B-15, MU-2B-20, MU-2B-25, MU-2B-26, MU-2B-30, MU-2B-35, MU-2B-36 Raytheon Aircraft Company58, 58A, 65, 65-80, 65-88, 65-90, 65-A80, 65-B80, 70, 95, 100, 95-55, 95-A55, 95-B55, 99, 99A, A100, A60, A65, A99, A99A, B100, B90, B95, B95A, B99, C-45G, C90, D18S, D95A, E18S-9700, E90, F90, G18S, G50, H18, H50, J50 The Cessna Aircraft Company310D, 310E, 310H, 310I, 310J, 310K, 310L, 310N, 310P, 310Q, 320D, 336, 337, 340, 401, 402, 411, 414, 421, E310H The New Piper Aircraft Inc.PA-31P, PA-31T Twin Commander Aircraft Corporation500-B, 500-S, 500-U, 560-A, 560-E, 560-F, 680, 680-E, 680-F, 680-FL, 680-FL(P), 685, 690, 690A, 720
ACO: Los Angeles ACO Branch, Tel: +1 (562) 627-5200

STC Holder: Ontic Engineering and Manufacturing Inc. 20400 Plummer Street, Chatsworth, CA 91311, United States		If you are an STC Holder, Contact us to have your company added here!
STC No.: SA25CE	Status: Current	App Date: 11/16/1961	Rev Date: 04/30/2007
Description: Twin-engine electronic synchronizer.
TC Nos.: 5A4
Models: Raytheon Aircraft CompanyC50
ACO: AIR-770: West Certification Branch LA

STC Holder: Ontic Engineering and Manufacturing Inc. 20400 Plummer Street, Chatsworth, CA 91311, United States		If you are an STC Holder, Contact us to have your company added here!
STC No.: SA2955SO	Status: Current	App Date: 07/23/1990	Rev Date: 02/14/2014
Description: Replacement of existing electromechanical fuel quantity indicators with Smiths Industries digital fuel quantity indicators
TC Nos.: A22WE
Models: The Boeing CompanyDC-10-10, DC-10-30, DC-10-40
ACO: AIR-770: West Certification Branch LA

STC Holder: Ontic Engineering and Manufacturing Inc. 20360 Plummer Street, Chatsworth, CA 91311, United States		If you are an STC Holder, Contact us to have your company added here!
STC No.: SA30GL	Status: Historical	App Date: 06/23/1973	Rev Date: 06/17/2005
Description: Installation of electronic engine synchronizer system.
TC Nos.: A10CE, A22CE, A2WE, A5CE
Models: Learjet Inc.23, 24, 24B, 24D, 24E, 24F, 25, 25B, 25C, 25D, 25F, 28, 29 Sabreliner CorporationNA-265-80 The Cessna Aircraft Company500
ACO: Los Angeles ACO Branch, Tel: +1 (562) 627-5200

STC Holder: Ontic Engineering and Manufacturing Inc. 20400 Plummer Street, Chatsworth, CA 91311, United States		If you are an STC Holder, Contact us to have your company added here!
STC No.: SA30GL	Status: Current	App Date: 06/23/1973	Rev Date: 04/30/2007
Description: Installation of electronic engine synchronizer system.
TC Nos.: A10CE, A22CE, A2WE, A5CE
Models: Cessna Aircraft Company500 Learjet Inc.23, 24, 24B, 24D, 24E, 24F, 25, 25B, 25C, 25D, 25F, 28, 29 Sabreliner CorporationNA-265-80
ACO: AIR-770: West Certification Branch LA

STC Holder: Ontic Engineering and Manufacturing Inc. 20400 Plummer Street, Chatsworth, CA 91311, United States		If you are an STC Holder, Contact us to have your company added here!
STC No.: SA3468NM	Status: Current	App Date: 03/23/1987	Rev Date: 11/05/2013
Description: Installation of a 2300-07-1, 2307-02-1, or 2307-03-1 digital fuel quantity gauge system.
TC Nos.: A3WE
Models: The Boeing Company727-100 Series, 727-200 Series
ACO: AIR-770: West Certification Branch LA

STC Holder: Ontic Engineering and Manufacturing Inc. 20400 Plummer Street, Chatsworth, CA 91311, United States		If you are an STC Holder, Contact us to have your company added here!
STC No.: SA3498NM	Status: Current	App Date: 09/29/1987	Rev Date: 11/05/2013
Description: Installation of Smith Aerospace fuel quantity gauge system
TC Nos.: A16WE
Models: The Boeing Company737-100 Series, 737-200 Series, 737-300 Series, 737-400 Series, 737-500 Series
ACO: AIR-770: West Certification Branch LA

STC Holder: Ontic Engineering and Manufacturing Inc. 20400 Plummer Street, Chatsworth, CA 91311, United States		If you are an STC Holder, Contact us to have your company added here!
STC No.: SA412CE	Status: Current	App Date: 10/08/1965	Rev Date: 04/30/2007
Description: Installation of Woodward Electronic Engine synchronizer system.
TC Nos.: A10CE, A5CE
Models: Learjet Inc.23, 24, 24B, 24D, 25, 25B, 25C
ACO: AIR-770: West Certification Branch LA

STC Holder: Ontic Engineering and Manufacturing Inc. 1176 Telecom Drive, Creedmoor, NC 27522, United States		If you are an STC Holder, Contact us to have your company added here!
STC No.: SA4618SW	Status: Current	App Date: 01/20/1982	Rev Date: 03/17/2022
Description: Installation of the Zee Systems R-12/R-134a Air Conditioning Systems
TC Nos.: A5SW
Models: Fairchild Aircraft CorporationSA226-T, SA226-T(B), SA227-TT
ACO: AIR-750: East Certification Branch ATL

STC Holder: Ontic Engineering and Manufacturing Inc. 1176 Telecom Drive, Creedmoor, NC 27522, United States		If you are an STC Holder, Contact us to have your company added here!
STC No.: SA4725SW	Status: Current	App Date: 05/21/1982	Rev Date: 03/17/2022
Description: Installation of Conrac stall warning and stall avoidance system.
TC Nos.: A5SW, A8SW
Models: M7 Aerospace LLCSA226-AT, SA226-T, SA226-TC
ACO: AIR-750: East Certification Branch ATL

STC Holder: Ontic Engineering and Manufacturing Inc. 20360 Plummer Street, Chatsworth, CA 91311, United States		If you are an STC Holder, Contact us to have your company added here!
STC No.: SA698CE	Status: Historical	App Date: 12/05/1969	Rev Date: 07/21/2005
Description: Install Woodward electronic engine synchronizer system.
TC Nos.: A7EU
Models: Dassault-AviationFan Jet Falcon Series C, Fan Jet Falcon Series D, Fan Jet Falcon Series E, Fan Jet Falcon Series F
ACO: Los Angeles ACO Branch, Tel: +1 (562) 627-5200

STC Holder: Ontic Engineering and Manufacturing Inc. 20400 Plummer Street, Chatsworth, CA 91311, United States		If you are an STC Holder, Contact us to have your company added here!
STC No.: SA698CE	Status: Current	App Date: 12/05/1969	Rev Date: 04/30/2007
Description: Install Woodward electronic engine synchronizer system.
TC Nos.: A7EU
Models: Dassault-AviationFan Jet Falcon Series C, Fan Jet Falcon Series D, Fan Jet Falcon Series E, Fan Jet Falcon Series F
ACO: AIR-770: West Certification Branch LA

STC Holder: Ontic Engineering and Manufacturing Inc. 1176 Telecom Drive, Creedmoor, NC 27522, United States		If you are an STC Holder, Contact us to have your company added here!
STC No.: SA7374SW	Status: Current	App Date: 12/21/1987	Rev Date: 03/17/2022
Description: Installation of a UNS-1A flight management system.
TC Nos.: A5SW
Models: M7 Aerospace LLCSA227-TT
ACO: AIR-750: East Certification Branch ATL

STC Holder: Ontic Engineering and Manufacturing Inc. 20400 Plummer Street, Chatsworth, CA 91311, United States		If you are an STC Holder, Contact us to have your company added here!
STC No.: SA7440SW	Status: Current	App Date: 10/27/1987	Rev Date: 03/21/2014
Description: Installation of fuel quantity indicators, fuel quantity repeaters and digital calibration units.
TC Nos.: A6WE
Models: The Boeing CompanyDC-9-11, DC-9-12, DC-9-13, DC-9-14, DC-9-15, DC-9-31, DC-9-32, DC-9-32F, DC-9-33F, DC-9-51
ACO: AIR-770: West Certification Branch LA

STC Holder: Ontic Engineering and Manufacturing Inc. 20400 Plummer Street, Chatsworth, CA 91311, United States		If you are an STC Holder, Contact us to have your company added here!
STC No.: SA756CE	Status: Current	App Date: 03/11/1971	Rev Date: 04/30/2007
Description: Install Woodward engine synchronizer system.
TC Nos.: A2WE
Models: Sabreliner CorporationNA-265-40, NA-265-60, NA-265-70
ACO: AIR-770: West Certification Branch LA

STC Holder: Ontic Engineering and Manufacturing Inc. 20360 Plummer Street, Chatsworth, CA 91311, United States		If you are an STC Holder, Contact us to have your company added here!
STC No.: SA756CE	Status: Historical	App Date: 03/11/1971	Rev Date: 07/27/2005
Description: Install Woodward engine synchronizer system.
TC Nos.: A2WE
Models: Sabreliner CorporationNA-265-40, NA-265-60, NA-265-70
ACO: Los Angeles ACO Branch, Tel: +1 (562) 627-5200

STC Holder: Ontic Engineering and Manufacturing Inc. 20400 Plummer Street, Chatsworth, CA 91311, United States		If you are an STC Holder, Contact us to have your company added here!
STC No.: SA7729SW	Status: Current	App Date: 03/13/1989	Rev Date: 03/21/2014
Description: Installation of digital fuel quantity indicators, fuel totalizer, and capacitive fuel compensator units.
TC Nos.: 4A25
Models: The Boeing CompanyDC-8-61, DC-8-61F, DC-8-63, DC-8-63F, DC-8-71, DC-8-71F, DC-8-73, DC-8-73F
ACO: AIR-770: West Certification Branch LA

STC Holder: Ontic Engineering and Manufacturing Inc. 20400 Plummer Street, Chatsworth, CA 91311, United States		If you are an STC Holder, Contact us to have your company added here!
STC No.: SA791CE	Status: Current	App Date: 01/22/1971	Rev Date: 04/30/2007
Description: Installation of either of the following electronic synchronizer kits P/N 213521 or P/N 213517.
TC Nos.: A2SW
Models: Israel Aircraft Industries Ltd.1121, 1121A, 1121B, 1123
ACO: AIR-770: West Certification Branch LA

STC Holder: Ontic Engineering and Manufacturing Inc. 20360 Plummer Street, Chatsworth, CA 91311, United States		If you are an STC Holder, Contact us to have your company added here!
STC No.: SA791CE	Status: Historical	App Date: 01/22/1971	Rev Date: 07/27/2005
Description: Installation of either of the following electronic synchronizer kits P/N 213521 or P/N 213517.
TC Nos.: A2SW
Models: Israel Aircraft Industries Ltd.1121, 1121A, 1121B, 1123
ACO: Los Angeles ACO Branch, Tel: +1 (562) 627-5200

STC Holder: Ontic Engineering and Manufacturing Inc. 20360 Plummer Street, Chatsworth, CA 91311, United States		If you are an STC Holder, Contact us to have your company added here!
STC No.: SA8GL	Status: Historical	App Date: 11/14/1972	Rev Date: 06/27/2005
Description: Installation of engine synchronizer kit P/N 213522.
TC Nos.: A22CE
Models: The Cessna Aircraft Company500 Series
ACO: Los Angeles ACO Branch, Tel: +1 (562) 627-5200

STC Holder: Ontic Engineering and Manufacturing Inc. 20400 Plummer Street, Chatsworth, CA 91311, United States		If you are an STC Holder, Contact us to have your company added here!
STC No.: SA8GL	Status: Current	App Date: 11/14/1972	Rev Date: 04/30/2007
Description: Installation of engine synchronizer kit P/N 213522.
TC Nos.: A22CE
Models: The Cessna Aircraft Company500 Series
ACO: AIR-770: West Certification Branch LA

STC Holder: Ontic Engineering and Manufacturing Inc. 20400 Plummer Street, Chatsworth, CA 91311, United States		If you are an STC Holder, Contact us to have your company added here!
STC No.: ST00181SE	Status: Historical	App Date: 02/26/1999	Rev Date: 02/14/2014
Description: Installation of Model 4033, 4034 and 4038 Transient Suppression Units
TC Nos.: A20WE
Models: The Boeing Company747-100 Series, 747-200B Series, 747-200C Series, 747-200F Series, 747-300 Series, 747SP Series, 747SR Series
ACO: Los Angeles ACO Branch, Tel: +1 (562) 627-5200

STC Holder: Ontic Engineering and Manufacturing Inc. 20400 Plummer Street, Chatsworth, CA 91311, United States		If you are an STC Holder, Contact us to have your company added here!
STC No.: ST00388LA-D	Status: Current	App Date: 05/29/1998	Rev Date: 09/10/2009
Description: Installation of provisions for smoke detection and fire suppression systems, lower cargo compartments.
TC Nos.: A16WE
Models: The Boeing Company737-300 Series
ACO: AIR-770: West Certification Branch LA

STC Holder: Ontic Engineering and Manufacturing Inc. 20400 Plummer Street, Chatsworth, CA 91311, United States		If you are an STC Holder, Contact us to have your company added here!
STC No.: ST00399LA-D	Status: Current	App Date: 12/21/1998	Rev Date: 09/10/2009
Description: Installation of smoke detection system, lower cargo compartment.
TC Nos.: A3WE
Models: The Boeing Company727-100 Series, 727-100C Series, 727-200 Series, 727-200F Series, 727C Series
ACO: AIR-770: West Certification Branch LA

STC Holder: Ontic Engineering and Manufacturing Inc. 20400 Plummer Street, Chatsworth, CA 91311, United States		If you are an STC Holder, Contact us to have your company added here!
STC No.: ST00403LA-D	Status: Current	App Date: 12/22/1998	Rev Date: 09/10/2009
Description: Installation of smoke detection system, lower cargo compartments.
TC Nos.: A6WE
Models: McDonnell Douglas CorporationDC-9-14, DC-9-15, DC-9-15F, DC-9-31, DC-9-32, DC-9-32F, DC-9-33F, DC-9-41
ACO: AIR-770: West Certification Branch LA

STC Holder: Ontic Engineering and Manufacturing Inc. 20400 Plummer Street, Chatsworth, CA 91311, United States		If you are an STC Holder, Contact us to have your company added here!
STC No.: ST00404LA-D	Status: Current	App Date: 03/08/1999	Rev Date: 09/10/2009
Description: Installation of smoke detection and fire suppression systems provisions, lower cargo compartments.
TC Nos.: A16WE
Models: The Boeing Company737-400 Series
ACO: AIR-770: West Certification Branch LA

STC Holder: Ontic Engineering and Manufacturing Inc. 20400 Plummer Street, Chatsworth, CA 91311, United States		If you are an STC Holder, Contact us to have your company added here!
STC No.: ST00406LA-D	Status: Current	App Date: 03/30/1999	Rev Date: 09/10/2009
Description: Installation of Smoke Detection and Fire Suppression Systems, Lower Cargo Compartments.
TC Nos.: A6WE
Models: McDonnell Douglas CorporationDC-9-81, DC-9-82
ACO: AIR-770: West Certification Branch LA

STC Holder: Ontic Engineering and Manufacturing Inc. 20400 Plummer Street, Chatsworth, CA 91311, United States		If you are an STC Holder, Contact us to have your company added here!
STC No.: ST00511LA	Status: Current	App Date: 09/26/1997	Rev Date: 09/10/2009
Description: Installation of a smoke detection and fire suppression system.
TC Nos.: A16WE
Models: The Boeing Company737-300 Series
ACO: AIR-770: West Certification Branch LA

STC Holder: Ontic Engineering and Manufacturing Inc. 20400 Plummer Street, Chatsworth, CA 91311, United States		If you are an STC Holder, Contact us to have your company added here!
STC No.: ST00740LA-D	Status: Current	App Date: 01/14/1999	Rev Date: 09/10/2009
Description: Installation of smoke detection and fire suppression systems provisions, lower cargo compartments.
TC Nos.: A16WE
Models: The Boeing Company737-300 Series
ACO: AIR-770: West Certification Branch LA

STC Holder: Ontic Engineering and Manufacturing Inc. 20400 Plummer Street, Chatsworth, CA 91311, United States		If you are an STC Holder, Contact us to have your company added here!
STC No.: ST00745LA-D	Status: Current	App Date: 01/13/1999	Rev Date: 09/10/2009
Description: Installation of Lower Cargo Compartment Smoke Detection and Fire Suppression Systems.
TC Nos.: A16WE
Models: The Boeing Company737-200 Series
ACO: AIR-770: West Certification Branch LA

STC Holder: Ontic Engineering and Manufacturing Inc. 20400 Plummer Street, Chatsworth, CA 91311, United States		If you are an STC Holder, Contact us to have your company added here!
STC No.: ST00746LA-D	Status: Current	App Date: 12/22/1998	Rev Date: 09/10/2009
Description: Installation of smoke detection system, lower cargo compartment.
TC Nos.: 4A25
Models: McDonnell Douglas CorporationDC-8-61, DC-8-61F, DC-8-62, DC-8-62F, DC-8-63, DC-8-63F, DC-8-71, DC-8-71F, DC-8-73, DC-8-73F
ACO: AIR-770: West Certification Branch LA

STC Holder: Ontic Engineering and Manufacturing Inc. 20400 Plummer Street, Chatsworth, CA 91311, United States		If you are an STC Holder, Contact us to have your company added here!
STC No.: ST00751LA-D	Status: Current	App Date: 04/12/1999	Rev Date: 09/10/2009
Description: Installation of lower cargo compartment smoke detection and fire suppression.
TC Nos.: A16WE
Models: The Boeing Company737-500 Series
ACO: AIR-770: West Certification Branch LA

STC Holder: Ontic Engineering and Manufacturing Inc. 20400 Plummer Street, Chatsworth, CA 91311, United States		If you are an STC Holder, Contact us to have your company added here!
STC No.: ST00765LA-D	Status: Current	App Date: 08/03/2000	Rev Date: 09/10/2009
Description: Installation of smoke detection and fire suppression systems provisions.
TC Nos.: A3WE
Models: The Boeing Company727-100 Series
ACO: AIR-770: West Certification Branch LA

STC Holder: Ontic Engineering and Manufacturing Inc. 20400 Plummer Street, Chatsworth, CA 91311, United States		If you are an STC Holder, Contact us to have your company added here!
STC No.: ST00847SE	Status: Current	App Date: 02/26/1999	Rev Date: 02/05/2014
Description: Installation of Model 4035 Transient Suppression Units on Boeing 737 Classic Airplanes fitted with Smiths Digital Fuel Gauging Systems
TC Nos.: A16WE
Models: The Boeing Company737-100 Series, 737-200 Series, 737-300 Series, 737-400 Series, 737-500 Series
ACO: AIR-770: West Certification Branch LA

STC Holder: Ontic Engineering and Manufacturing Inc. 20400 Plummer Street, Chatsworth, CA 91311, United States		If you are an STC Holder, Contact us to have your company added here!
STC No.: ST00982LA-D	Status: Current	App Date: 04/04/2000	Rev Date: 09/10/2009
Description: Installation of smoke detection and fire suppression systems provisions.
TC Nos.: A6WE
Models: McDonnell Douglas CorporationDC-9-31
ACO: AIR-770: West Certification Branch LA

STC Holder: Ontic Engineering and Manufacturing Inc. 20400 Plummer Street, Chatsworth, CA 91311, United States		If you are an STC Holder, Contact us to have your company added here!
STC No.: ST00986LA-D	Status: Current	App Date: 07/27/2000	Rev Date: 09/10/2009
Description: Installation of lower cargo compartment smoke detection system provisions.
TC Nos.: 4A22
Models: Lockheed Aircraft Corporation188A, 188C
ACO: AIR-770: West Certification Branch LA

STC Holder: Ontic Engineering and Manufacturing Inc. 20400 Plummer Street, Chatsworth, CA 91311, United States		If you are an STC Holder, Contact us to have your company added here!
STC No.: ST00990LA-D	Status: Current	App Date: 01/31/2001	Rev Date: 09/10/2009
Description: Installation of smoke detection system in lower cargo compartments.
TC Nos.: A16WE
Models: The Boeing Company737-200 Series, 737-200C Series
ACO: AIR-770: West Certification Branch LA

STC Holder: Ontic Engineering and Manufacturing Inc. 20400 Plummer Street, Chatsworth, CA 91311, United States		If you are an STC Holder, Contact us to have your company added here!
STC No.: ST00991LA-D	Status: Current	App Date: 02/01/2001	Rev Date: 09/10/2009
Description: Installation of Smoke Detection and Fire Suppression Systems.
TC Nos.: A3WE
Models: The Boeing Company727-200 Series
ACO: AIR-770: West Certification Branch LA

STC Holder: Ontic Engineering and Manufacturing Inc. 20400 Plummer Street, Chatsworth, CA 91311, United States		If you are an STC Holder, Contact us to have your company added here!
STC No.: ST01234SE	Status: Current	App Date: 09/13/2001	Rev Date: 03/21/2014
Description: Installation of Model 4036-01 Gauging Transient Suppression Units
TC Nos.: A16WE
Models: The Boeing Company737-100 Series, 737-200 Series, 737-300 Series
ACO: AIR-770: West Certification Branch LA