FAA-listed STC holder

Horizon Instruments Inc STCs

The Jun 30, 2026 FAA DRS snapshot lists 22 selected supplemental type certificates with status Current under Horizon Instruments Inc. The records span 231 public aircraft directories and 2 modification categories. This is a research directory, not a claim that any specific kit or service is currently offered.

listed Current at snapshot

231

aircraft directories

modification categories

Jul 28, 2010

latest recorded revision

Recently revised records

Showing the 22 most recently revised records. Category directories provide the complete paginated discovery path.

22 displayed records.

Search every indexed record for this holder. The table below contains the recently revised records shown on this page.

Horizon Instruments Inc supplemental type certificates, aircraft applicability, source status and dates
STC and modification	Aircraft / model / TC	Source status and dates	Holder and authority
SA5820NM Installation of an engine electronic digital tachometer, Model P-1000. Engine and powerplant View record	Cessna Aircraft 172TC 3A12 Cessna Aircraft 172ATC 3A12 Cessna Aircraft 172BTC 3A12 Cessna Aircraft 172CTC 3A12 Cessna Aircraft 172DTC 3A12 Cessna Aircraft 172ETC 3A12 Cessna Aircraft 172F (USAF T-41A)TC 3A12 Cessna Aircraft 172GTC 3A12 Cessna Aircraft 172H (USAF T-41A)TC 3A12 Cessna Aircraft 172ITC 3A12 Cessna Aircraft 172KTC 3A12 Cessna Aircraft 172LTC 3A12 Cessna Aircraft 172MTC 3A12 Cessna Aircraft 172NTC 3A12 Cessna Aircraft 172PTC 3A12 Cessna Aircraft 172QTC 3A12 Cessna Aircraft 172RTC 3A12 Cessna Aircraft 172STC 3A12	Current at cited snapshot Revised Jul 28, 2010 Application: Apr 8, 1991	FAA holder: Horizon Instruments Inc FAA authority record
SA01923LA Installation of the P-1000 Digital Electronic Tachometer. Other aircraft modifications View record	CPAC (Commander Aircraft) 114TC A12SO Helio Aircraft H-295 (USAF U10D)TC 1A8 Maule Aerospace Technology M-4-210CTC 3A23 Maule Aerospace Technology M-7-235BTC 3A23 Mooney Aircraft M20RTC 2A3 Mooney Aircraft M20STC 2A3 Navion Aircraft Navion GTC A-782 Piper Aircraft PA-18ATC 1A2 Piper Aircraft PA-22TC 1A6 Piper Aircraft PA-22-108TC 1A6 Piper Aircraft PA-22-135TC 1A6 Piper Aircraft PA-22-150TC 1A6 Piper Aircraft PA-22-160TC 1A6 Piper Aircraft PA-34-200TTC A7SO Raytheon Aircraft A23-19TC A1CE Raytheon Aircraft A24RTC A1CE Raytheon Aircraft B24RTC A1CE Raytheon Aircraft 76TC A29CE SOCATA - Groupe Aerospatiale GA-7TC A17SO Univair Aircraft 108-3TC A-767 Vulcanair SpA P 68C-TCTC A31EU Cessna Aircraft 172CTC 3A12 Cessna Aircraft R172KTC 3A17 Cessna Aircraft T188CTC A9CE	Current at cited snapshot Revised Jan 23, 2007 Application: May 19, 2006	FAA holder: Horizon Instruments Inc FAA authority record
SA5491NM Installation of engine electronic digital tachometer. Engine and powerplant View record	Raytheon Aircraft 35-33TC 3A15 Raytheon Aircraft 35-A33TC 3A15 Raytheon Aircraft 35-B33TC 3A15 Raytheon Aircraft 35-C33TC 3A15 Raytheon Aircraft 35-C33ATC 3A15 Raytheon Aircraft 36TC 3A15 Raytheon Aircraft A36TC 3A15 Raytheon Aircraft A36TCTC 3A15 Raytheon Aircraft B36TCTC 3A15 Raytheon Aircraft E33TC 3A15 Raytheon Aircraft E33ATC 3A15 Raytheon Aircraft E33CTC 3A15 Raytheon Aircraft F33TC 3A15 Raytheon Aircraft F33ATC 3A15 Raytheon Aircraft F33CTC 3A15 Raytheon Aircraft G33TC 3A15 Raytheon Aircraft H35TC 3A15 Raytheon Aircraft J35TC 3A15 Raytheon Aircraft K35TC 3A15 Raytheon Aircraft M35TC 3A15 Raytheon Aircraft N35TC 3A15 Raytheon Aircraft P35TC 3A15 Raytheon Aircraft S35TC 3A15 Raytheon Aircraft V35TC 3A15 Raytheon Aircraft V35ATC 3A15 Raytheon Aircraft V35BTC 3A15	Current at cited snapshot Revised May 15, 2006 Application: Apr 8, 1991	FAA holder: Horizon Instruments Inc FAA authority record
SA5826NM Installation of an engine electronic tachometer, Model P-1000. Engine and powerplant View record	Cessna Aircraft R172KTC 3A17 Cessna Aircraft 175CTC 3A17 Cessna Aircraft 175BTC 3A17 Cessna Aircraft 175TC 3A17 Cessna Aircraft P172DTC 3A17 Cessna Aircraft 172RGTC 3A17 Cessna Aircraft 175ATC 3A17	Current at cited snapshot Revised Nov 18, 2005 Application: Apr 8, 1991	FAA holder: Horizon Instruments Inc FAA authority record
SA6017NM Installation of an electronic digital engine tachometer. Engine and powerplant View record	SOCATA - Groupe Aerospatiale TB9TC A51EU SOCATA - Groupe Aerospatiale TB20TC A51EU SOCATA - Groupe Aerospatiale TB21TC A51EU SOCATA - Groupe Aerospatiale TB10TC A51EU	Current at cited snapshot Revised Nov 17, 2005 Application: Jan 28, 1993	FAA holder: Horizon Instruments Inc FAA authority record
SA5822NM Installation of an engine electronic digital tachometer, Model P-1000. Engine and powerplant View record	Cessna Aircraft 182TC 3A13 Cessna Aircraft 182ATC 3A13 Cessna Aircraft 182BTC 3A13 Cessna Aircraft 182CTC 3A13 Cessna Aircraft 182DTC 3A13 Cessna Aircraft 182ETC 3A13 Cessna Aircraft 182STC 3A13 Textron Aviation 182TTC 3A13	Current at cited snapshot Revised Jan 7, 2005 Application: Apr 8, 1991	FAA holder: Horizon Instruments Inc FAA authority record
SA6021NM Installation of an electronic digital engine tachometer, Model P-1000. Engine and powerplant View record	Cessna Aircraft TU206CTC A4CE Cessna Aircraft U206DTC A4CE Cessna Aircraft TP206ETC A4CE Cessna Aircraft U206TC A4CE Cessna Aircraft U206ATC A4CE Cessna Aircraft U206BTC A4CE Cessna Aircraft U206CTC A4CE Cessna Aircraft TP206CTC A4CE Cessna Aircraft U206ETC A4CE Cessna Aircraft U206FTC A4CE Cessna Aircraft TU206BTC A4CE Cessna Aircraft TP206BTC A4CE Cessna Aircraft TU206DTC A4CE Cessna Aircraft TU206ETC A4CE Cessna Aircraft TU206FTC A4CE Cessna Aircraft TU206GTC A4CE Cessna Aircraft U206GTC A4CE Cessna Aircraft 206TC A4CE Cessna Aircraft P206ETC A4CE Cessna Aircraft P206DTC A4CE Cessna Aircraft P206CTC A4CE Cessna Aircraft P206BTC A4CE Cessna Aircraft P206ATC A4CE Cessna Aircraft P206TC A4CE Cessna Aircraft TU206ATC A4CE Cessna Aircraft TP206DTC A4CE Cessna Aircraft TP206ATC A4CE Textron Aviation T206HTC A4CE Textron Aviation 206HTC A4CE	Current at cited snapshot Revised Jan 7, 2005 Application: Jan 28, 1993	FAA holder: Horizon Instruments Inc FAA authority record
SA00621LA Installation of an electronic digital engine tachometer, horizon model P-1000. Engine and powerplant View record	New Piper Aircraft PA-23-160TC 1A10 New Piper Aircraft PA-23-235TC 1A10 New Piper Aircraft PA-23-250TC 1A10 New Piper Aircraft PA-E23-250TC 1A10 New Piper Aircraft PA-23TC 1A10	Current at cited snapshot Revised Jan 14, 2002 Application: Not listed	FAA holder: Horizon Instruments Inc FAA authority record
SA00622LA Installation of an electronic digital engine tachometer horizon model P-1000. Engine and powerplant View record	Air Tractor AT-401BTC A17SW Air Tractor AT-501TC A17SW Air Tractor AT-401ATC A17SW Air Tractor AT-401TC A17SW Air Tractor AT-250TC A9SW Air Tractor AT-300TC A9SW Air Tractor AT-301TC A9SW Ayres 600-S2CTC 2A7 Ayres S-2CTC 2A7 Ayres S-2BTC 2A7 Ayres S2R-R1340TC A3SW Ayres S2R-R3STC A3SW Ayres S2RTC A3SW Ayres 600 S-2DTC A3SW Ayres 600 S2DTC A4SW Ayres S2R-R1820TC A4SW Weatherly Aviation 620TC A26WE Allied Ag Cat Productions G-164TC 1A16 Allied Ag Cat Productions G-164ATC 1A16 Allied Ag Cat Productions G-164BTC 1A16 Allied Ag Cat Productions G-164CTC 1A16	Current at cited snapshot Revised Jan 14, 2002 Application: Not listed	FAA holder: Horizon Instruments Inc FAA authority record
SA5821NM Installation of an electronic digital engine tachmoter, Model P-1000. Engine and powerplant View record	Cessna Aircraft 210TC 3A21 Cessna Aircraft 210-5 (205)TC 3A21 Cessna Aircraft 210-5A (205A)TC 3A21 Cessna Aircraft 210ATC 3A21 Cessna Aircraft 210BTC 3A21 Cessna Aircraft 210CTC 3A21 Cessna Aircraft 210DTC 3A21 Cessna Aircraft 210ETC 3A21 Cessna Aircraft 210FTC 3A21 Cessna Aircraft 210GTC 3A21 Cessna Aircraft 210HTC 3A21 Cessna Aircraft 210JTC 3A21 Cessna Aircraft 210KTC 3A21 Cessna Aircraft 210LTC 3A21 Cessna Aircraft 210MTC 3A21 Cessna Aircraft 210NTC 3A21 Cessna Aircraft 210RTC 3A21 Cessna Aircraft P210NTC 3A21 Cessna Aircraft P210RTC 3A21 Cessna Aircraft T210FTC 3A21 Cessna Aircraft T210GTC 3A21 Cessna Aircraft T210HTC 3A21 Cessna Aircraft T210JTC 3A21 Cessna Aircraft T210KTC 3A21 Cessna Aircraft T210LTC 3A21 Cessna Aircraft T210MTC 3A21 Cessna Aircraft T210NTC 3A21 Cessna Aircraft T210RTC 3A21	Current at cited snapshot Revised Jan 14, 2002 Application: Not listed	FAA holder: Horizon Instruments Inc FAA authority record
SA5823NM Installation of an engine electronic digital tachometer, Model P-1000. Engine and powerplant View record	Cessna Aircraft 185TC 3A24 Cessna Aircraft A185FTC 3A24 Cessna Aircraft A185ETC 3A24 Cessna Aircraft 185ETC 3A24 Cessna Aircraft 185DTC 3A24 Cessna Aircraft 185CTC 3A24 Cessna Aircraft 185ATC 3A24 Cessna Aircraft 185BTC 3A24	Current at cited snapshot Revised Jan 14, 2002 Application: Not listed	FAA holder: Horizon Instruments Inc FAA authority record
SA5824NM Installation of an engine electronic digital tachometer, Model P-1000. Engine and powerplant View record	Cessna Aircraft 180FTC 5A6 Cessna Aircraft 180KTC 5A6 Cessna Aircraft 180JTC 5A6 Cessna Aircraft 180HTC 5A6 Cessna Aircraft 180ATC 5A6 Cessna Aircraft 180GTC 5A6 Cessna Aircraft 180DTC 5A6 Cessna Aircraft 180BTC 5A6 Cessna Aircraft 180ETC 5A6 Cessna Aircraft 180TC 5A6 Cessna Aircraft 180CTC 5A6	Current at cited snapshot Revised Jan 14, 2002 Application: Apr 8, 1991	FAA holder: Horizon Instruments Inc FAA authority record
SA5838NM Installation of an engine electronic digital tachometer. Engine and powerplant View record	Raytheon Aircraft B35TC A-777 Raytheon Aircraft F35TC A-777 Raytheon Aircraft 35TC A-777 Raytheon Aircraft E35TC A-777 Raytheon Aircraft C35TC A-777 Raytheon Aircraft A35TC A-777 Raytheon Aircraft D35TC A-777	Current at cited snapshot Revised Jan 14, 2002 Application: Not listed	FAA holder: Horizon Instruments Inc FAA authority record
SA5841NM Installation of an engine electronic digital tachometer. Engine and powerplant View record	New Piper Aircraft PA-30TC A1EA New Piper Aircraft PA-39TC A1EA New Piper Aircraft PA-40TC A1EA	Current at cited snapshot Revised Jan 14, 2002 Application: Not listed	FAA holder: Horizon Instruments Inc FAA authority record
SA5843NM Installation of an engine electronic digital tachometer. Engine and powerplant View record	New Piper Aircraft PA-32R-300TC A3SO New Piper Aircraft PA-32-301TTC A3SO New Piper Aircraft PA-32-300TC A3SO New Piper Aircraft PA-32RT-300TC A3SO New Piper Aircraft PA-32RT-300TTC A3SO New Piper Aircraft PA-32R-301(SP)TC A3SO New Piper Aircraft PA-32R-301(HP)TC A3SO New Piper Aircraft PA-32R-301TTC A3SO New Piper Aircraft PA-32-301TC A3SO New Piper Aircraft PA-32-260TC A3SO	Current at cited snapshot Revised Jan 14, 2002 Application: Not listed	FAA holder: Horizon Instruments Inc FAA authority record
SA5844NM Installation of an electronic digital engine tachometer, Model P-1000, P/N P100030- . Engine and powerplant View record	Mooney Aircraft M20ATC 2A3 Mooney Aircraft M20MTC 2A3 Mooney Aircraft M20KTC 2A3 Mooney Aircraft M20JTC 2A3 Mooney Aircraft M20GTC 2A3 Mooney Aircraft M20FTC 2A3 Mooney Aircraft M20ETC 2A3 Mooney Aircraft M20DTC 2A3 Mooney Aircraft M20BTC 2A3 Mooney Aircraft M20TC 2A3 Mooney Aircraft M20CTC 2A3	Current at cited snapshot Revised Jan 14, 2002 Application: Not listed	FAA holder: Horizon Instruments Inc FAA authority record
SA6016NM Installation of an electronic digital engine tachometer, Horizon Model P-1000, P/N P100050-( ). Engine and powerplant View record	Tiger Aircraft AG-5BTC A16EA Tiger Aircraft AA-5BTC A16EA Tiger Aircraft AA-5TC A16EA Tiger Aircraft AA-5ATC A16EA	Current at cited snapshot Revised Jan 14, 2002 Application: Not listed	FAA holder: Horizon Instruments Inc FAA authority record
SA6018NM Installation of an electronic digital engine tachometer, Model P-1000, P/N P100074-. Engine and powerplant View record	New Piper Aircraft PA-46-350PTC A25SO New Piper Aircraft PA-46-310PTC A25SO	Current at cited snapshot Revised Jan 14, 2002 Application: Not listed	FAA holder: Horizon Instruments Inc FAA authority record
SA6019NM Installation of an electronic digital engine tachometer. Engine and powerplant View record	New Piper Aircraft PA-24-400TC 1A15 New Piper Aircraft PA-24-260TC 1A15 New Piper Aircraft PA-24-250TC 1A15 New Piper Aircraft PA-24TC 1A15	Current at cited snapshot Revised Jan 14, 2002 Application: Jan 28, 1993	FAA holder: Horizon Instruments Inc FAA authority record
SA6022NM Installation of an electronic digital engine tachometer, Model P-1000. Issued 5/18/93. Engine and powerplant View record	Cessna Aircraft 177RGTC A20CE	Current at cited snapshot Revised Jan 14, 2002 Application: Not listed	FAA holder: Horizon Instruments Inc FAA authority record
SA6023NM Installation of an electronic digital engine tachometer, Model P-1000. Engine and powerplant View record	Cessna Aircraft 177ATC A13CE Cessna Aircraft 177TC A13CE Cessna Aircraft 177BTC A13CE	Current at cited snapshot Revised Jan 14, 2002 Application: Jan 28, 1993	FAA holder: Horizon Instruments Inc FAA authority record
SA7092NM Installation of an engine Electronic Digital Tachometer Horizon Model P-1000, P/N P100200- . Engine and powerplant View record	REVO Colonial C-1TC 1A13 REVO Lake LA-4PTC 1A13 REVO Lake LA-4-200TC 1A13 REVO Colonial C-2TC 1A13 REVO Lake LA-4TC 1A13 REVO Lake LA-4ATC 1A13	Current at cited snapshot Revised Jan 14, 2002 Application: Not listed	FAA holder: Horizon Instruments Inc FAA authority record

Horizon Instruments Inc STCs

Modification mix

Aircraft represented

Recently revised records

Installation of an engine electronic digital tachometer, Model P-1000.

Installation of the P-1000 Digital Electronic Tachometer.

Installation of engine electronic digital tachometer.

Installation of an engine electronic tachometer, Model P-1000.

Installation of an electronic digital engine tachometer.

Installation of an engine electronic digital tachometer, Model P-1000.

Installation of an electronic digital engine tachometer, Model P-1000.

Installation of an electronic digital engine tachometer, horizon model P-1000.

Installation of an electronic digital engine tachometer horizon model P-1000.

Installation of an electronic digital engine tachmoter, Model P-1000.

Installation of an engine electronic digital tachometer, Model P-1000.

Installation of an engine electronic digital tachometer, Model P-1000.

Installation of an engine electronic digital tachometer.

Installation of an engine electronic digital tachometer.

Installation of an engine electronic digital tachometer.

Installation of an electronic digital engine tachometer, Model P-1000, P/N P100030- .

Installation of an electronic digital engine tachometer, Horizon Model P-1000, P/N P100050-( ).

Installation of an electronic digital engine tachometer, Model P-1000, P/N P100074-.

Installation of an electronic digital engine tachometer.

Installation of an electronic digital engine tachometer, Model P-1000. Issued 5/18/93.

Installation of an electronic digital engine tachometer, Model P-1000.

Installation of an engine Electronic Digital Tachometer Horizon Model P-1000, P/N P100200- .