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No. of STCs: 15

STC Holder: Mayday Avionics Inc 5500 44th Street SE, Grand Rapids, MI 49512, United States		If you are an STC Holder, Contact us to have your company added here!
STC No.: SA1379GL	Status: Current	App Date: 01/17/1989	Rev Date: 05/04/2000
Description: Install an Icarus Instruments AltAlert 3070 altitude alert device.
TC Nos.: 3A15
Models: Raytheon Aircraft CompanyV35B
ACO: AIR-750: East Certification Branch NY

STC Holder: Mayday Avionics Inc 5500 44th Street SE, Grand Rapids, MI 49512, United States		If you are an STC Holder, Contact us to have your company added here!
STC No.: SR01016CH	Status: Current	App Date:	Rev Date: 03/11/1999
Description: Installation of a Universal Avionics UNS-1Msp navigation management system.
TC Nos.: H1NE
Models: Sikorsky Aircraft CorporationS-76A, S-76B, S-76C
ACO: AIR-760: Central Certification Branch CHI

STC Holder: Mayday Avionics Inc 5500 44th Street SE, Grand Rapids, MI 49512, United States		If you are an STC Holder, Contact us to have your company added here!
STC No.: SR02748CH	Status: Current	App Date: 09/02/2009	Rev Date: 09/02/2009
Description: Installation of a Honeywell Mark XXII Enhanced Ground Proximity Warning System (EGPWS)
TC Nos.: H1NE
Models: Sikorsky Aircraft CorporationS-76A, S-76B, S-76C
ACO: AIR-760: Central Certification Branch CHI

STC Holder: Mayday Avionics Inc 5500 44th Street SE, Grand Rapids, MI 49512, United States		If you are an STC Holder, Contact us to have your company added here!
STC No.: SR03441CH	Status: Current	App Date: 06/07/2013	Rev Date: 05/22/2015
Description: Installation of TrueView Enhanced Vision System (EVS) T6-Series
TC Nos.: H1NE
Models: Sikorsky Aircraft CorporationS-76A, S-76B, S-76C, S-76D
ACO: AIR-760: Central Certification Branch CHI

STC Holder: Mayday Avionics Inc 5500 44th Street SE, Grand Rapids, MI 49512, United States		If you are an STC Holder, Contact us to have your company added here!
STC No.: SR04056CH	Status: Current	App Date: 01/30/2014	Rev Date: 02/16/2016
Description: Installation of L-3 Communications Avionics Systems Trilogy Electronic Standby Instrument (Model ESI-2000)
TC Nos.: H10EU
Models: Airbus HelicoptersAS-365N2, AS-365N3, SA-365N, SA-365N1
ACO: AIR-760: Central Certification Branch CHI

STC Holder: Mayday Avionics Inc 5500 44th Street SE, Grand Rapids, MI 49512, United States		If you are an STC Holder, Contact us to have your company added here!
STC No.: ST00861CH	Status: Current	App Date:	Rev Date: 04/20/1998
Description: Installation of Dual Honeywell FMZ-2000 Flight Management System with Dual Honeywell GNSSU GPS sensors.
TC Nos.: A3WE
Models: The Boeing Company727-100 Series, 727-200 Series
ACO: AIR-760: Central Certification Branch CHI

STC Holder: Mayday Avionics Inc 5500 44th Street SE, Grand Rapids, MI 49512, United States		If you are an STC Holder, Contact us to have your company added here!
STC No.: ST01240CH	Status: Current	App Date:	Rev Date: 05/25/2000
Description: Installation of an AlliedSignal Mark VII Ground Proximity Warning System.
TC Nos.: A3WE
Models: The Boeing Company727 Series
ACO: AIR-760: Central Certification Branch CHI

STC Holder: Mayday Avionics Inc 5500 44th Street SE, Grand Rapids, MI 49512, United States		If you are an STC Holder, Contact us to have your company added here!
STC No.: ST01332CH	Status: Current	App Date:	Rev Date: 10/19/2000
Description: Installation of a Honeywell Traffic Alert and Collision Avoidance System (TCAS II) incorporating MOPS Change 7. Previous installation of STC SA2899SO required.
TC Nos.: A3WE
Models: The Boeing Company727 Series
ACO: AIR-760: Central Certification Branch CHI

STC Holder: Mayday Avionics Inc 5500 44th Street SE, Grand Rapids, MI 49512, United States		If you are an STC Holder, Contact us to have your company added here!
STC No.: ST01659CH	Status: Current	App Date:	Rev Date: 06/24/2002
Description: Installation of a Dual Universal Avionics Systems UNS-1C+ Flight Management Systems. Installation of STC ST09297SC-D is a prerequisite.
TC Nos.: A50NM
Models: Dassault-AviationFalcon 2000
ACO: AIR-760: Central Certification Branch CHI

STC Holder: Mayday Avionics Inc 5500 44th Street SE, Grand Rapids, MI 49512, United States		If you are an STC Holder, Contact us to have your company added here!
STC No.: ST01907CH	Status: Current	App Date: 01/13/2003	Rev Date: 12/01/2003
Description: Installation of a Honeywell Mark V Enhanced Ground Proximity Warning System with Terrain Display.
TC Nos.: A46EU
Models: Dassault-AviationMystere-Falcon 900
ACO: AIR-760: Central Certification Branch CHI

STC Holder: Mayday Avionics Inc 5500 44th Street SE, Grand Rapids, MI 49512, United States		If you are an STC Holder, Contact us to have your company added here!
STC No.: ST02132CH	Status: Current	App Date: 08/05/2004	Rev Date: 04/07/2005
Description: Installation of a Honeywell Mark VII Enhanced Ground Proximity Warning System with Terrain Display and Runway Awareness Advisory System (RAAS).
TC Nos.: A3WE
Models: The Boeing Company727 Series, 727-100 Series, 727-100C Series, 727-200 Series, 727-200F Series, 727C Series
ACO: AIR-760: Central Certification Branch CHI

STC Holder: Mayday Avionics Inc 5500 44th Street SE, Grand Rapids, MI 49512, United States		If you are an STC Holder, Contact us to have your company added here!
STC No.: ST02173CH	Status: Current	App Date: 02/08/2005	Rev Date: 08/01/2005
Description: Upgrade of a Honeywell Mark VII Enhanced Ground Proximity Warning System to add the Runway Awareness Advisory System (RAAS).
TC Nos.: A3EU
Models: Raytheon Aircraft CompanyBAe.125 Series 800A, BAe.125 Series 800B, Hawker 800, Hawker 800XP
ACO: AIR-760: Central Certification Branch CHI

STC Holder: Mayday Avionics Inc 5500 44th Street SE, Grand Rapids, MI 49512, United States		If you are an STC Holder, Contact us to have your company added here!
STC No.: ST02174CH	Status: Current	App Date: 02/08/2005	Rev Date: 08/02/2005
Description: Upgrade of a Honeywell Mark V Enhanced Ground Proximity Warning System to add the Runway Awareness Advisory System (RAAS).
TC Nos.: A12EA
Models: Gulfstream Aerospace CorporationGV
ACO: AIR-760: Central Certification Branch CHI

STC Holder: Mayday Avionics Inc 5500 44th Street SE, Grand Rapids, MI 49512, United States		If you are an STC Holder, Contact us to have your company added here!
STC No.: ST238CH	Status: Historical	App Date:	Rev Date: 08/04/1994
Description: Installation of BFGoodrich TCAS I.
TC Nos.: 1A17
Models: Gulfstream Aerospace CorporationG-159
ACO: Chicago ACO Branch, Tel: +1 (847) 294-7358

STC Holder: Mayday Avionics Inc 5500 44th Street SE, Grand Rapids, MI 49512, United States		If you are an STC Holder, Contact us to have your company added here!
STC No.: ST444CH	Status: Current	App Date:	Rev Date: 11/02/1995
Description: Installation of Bendix/King TCAS II(Model CAS67A).
TC Nos.: A45NM
Models: Dornier-Werke G.m.b.H.Do 328-100
ACO: AIR-760: Central Certification Branch CHI