Sigma Tek INC
Named as the FAA publishes it on its approvals.
Holds 5 approved modifications, most of them for the Cessna 172 Skyhawk. Approved to make 60 classes of equipment. Holds 226 approvals to make replacement parts. FAA spelling: Sigma Tek Inc.
Approved modifications 5 · newest first
Cessna 172 Skyhawk 2Piper PA-28 Cherokee, Warrior, Archer and Arrow 1Mooney M-20 1Ag-Cat Corporation G-164 1
1990-09-17SA1077CE · Installation of Edo-Aire propeller governor. (G-164 S/N 526 AND UP WITH A P&W R-1340-AN-1 ENGINE AND HAMILTON... · G-164
1990-09-17SA965CE · Installation of Model 1U328-001 vacuum pump and 1U292-003 suction relief valve. · 172L
1990-09-17SA1383CE · Installation of Edo-Aire propeller governor Model 34-828-014-12. · PA-28R-201T
1990-09-17SA1300CE · Installation of Edo-Aire propeller governor Model 34-828-014-11. · M20J
1984-03-26SA1947CE · Replace existing engine driven vacuum pump with engine driven piston-type vacuum pump. · 172H (USAF T-41A), 172, 172G
Replacement parts approved 226 parts manufacturer approvals, 226 current · Augusta, KS
A parts manufacturer approval lets a company make a replacement part for someone else's aircraft or engine and sell it as an approved part. This company's approvals are mostly for other and general (182), flight controls (20), instruments and avionics (15).
Cessna 210 Centurion 57Cessna 414 Chancellor 56Cessna 402 54Cessna 340 49Cessna 310 36Cessna T-310 35Cessna 337 Skymaster 35Cessna U206 Stationair 32Cessna 421 Golden Eagle 32Cessna TU206 27Cessna 425 Conquest I 27Cessna T210 Turbo Centurion 26
1998-05-17Autopilot Attitude Gyro (Pitch & Roll) 5000E-21 · replaces Century Flight Systems Model 52D67 · 600, 601, P
1998-05-17Autopilot Attitude Gyro (Roll Only) 5000E-22 · replaces Century Flight Systems Model 52D66M · H-250, 295, 395
1998-05-17Autopilot Attitude Gyro (Roll Only) 5000E-20 · replaces Century Flight Systems Model 52D66 · H-250, 295, 395
1998-05-17Autopilot Attitude Gyro (Pitch & Roll) 5000E-9 · replaces Century Flight Systems Model 52D67 · 600, 601, P
1998-05-17Autopilot Attitude Gyro (Pitch & Roll) 5000E-23 · replaces Century Flight Systems Model 52D67M · 600, 601, P
1998-05-17Autopilot Directional Gyro, Model 4000C, and Model 4000C-1 1U262-004-15 · replaces Century Flight Systems Model Number 52D54 and... · F.260, B, S.205-18R
1998-05-17Autopilot Attitude Gyro (Roll Only) 5000E-10 · replaces Century Flight Systems Model 52D66M · H-250, 295, 395
1998-05-17Autopilot Attitude Gyro (Roll Only) 5000E-8 · replaces Century Flight Systems Model 52D66 · H-250, 295, 395
1998-05-17Autopilot Directional Gyro, Model 4000C, and Model 4000C-1 1U262-003-14 · replaces Century Flight Systems Model Number 52D54 and... · 600, 601, P
1998-05-17Autopilot Attitude Gyro (Pitch & Roll) 5000E-11 · replaces Century Flight Systems Model 52D67M · 600, 601, P
1996-08-04Actuator Hardware Kit 50670-0002 · replaces Cessna 50670-0002 · 425
1996-08-04Connector Kit 48155-0002 · replaces Cessna 48155-0002 · 310R, T310R, 340
1996-08-04Actuator 45850-3911 · replaces Cessna 45850-3911 · 404
1996-08-04Actuator 45850-4923 · replaces Cessna 45850-4923 · U206, TU206
1996-08-04Connector Kit 36885-0028 · replaces Cessna 36885-0028 · 337, T337
1996-08-04Electronic Switch 53085-0000 · replaces Cessna 53085-0000 · P210
1996-08-04Actuator Mount 44415-4100 · replaces Cessna 44415-4100 · R182, TR182, 310R
1996-08-04Computer Amplifier 42680-0001 · replaces Cessna 42680-0001 · 402B, 414
1996-08-04Instrument Clamp 41038-0000 · replaces Cessna 41038-0000 · 337, T337, 210
1996-08-04Actuator 44430-2825 · replaces Cessna 44430-2825 · 404
1996-08-04Mode Selector 48110-0002 · replaces Cessna 48110-0002 · 425
1996-08-04Actuator Mount 42730-4908 · replaces Cessna 42730-4908 · 182, R182, U206
1996-08-04Indicator Assembly 46450-0005 · replaces Cessna 46450-0005 · 340, 340A, 414A
1996-08-04Computer Amplifier 35910-1228 · replaces Cessna 35910-1228 · 337, F337, T337
1996-08-04Controller Amplifier 40850-1128 · replaces Cessna 40850-1128 · 210, 337, P337
1996-08-04Computer Amplifier 42680-0009 · replaces Cessna 42680-0009 · R182, TR182
1996-08-04Computer Amplifier 41120-1428 · replaces Cessna 41120-1428 · 337, T337
1996-08-04Actuator 35070-0428 · replaces Cessna 35070-0428 · 310R, T310R, 340
1996-08-04Mount 37980-0000 · replaces Cessna 37980-0000 · 210, P337, 337
1996-08-04Control Unit 35670-1014 · replaces Cessna 35670-1014 · 210, 206
1996-08-04Control Unit 41540-1028 · replaces Cessna 41540-1028 · U206, TU206, 210
1996-08-04Computer Amplifier 41120-1128 · replaces Cessna 41120-1128 · 337, P337
1996-08-04Instrument Clamp 41038-0001 · replaces Cessna 41038-0001 Or 64311b · 421C, 340A
1996-08-04Mounting Assembly 45962-0000 · replaces Cessna 45962-0000 · 425
1996-08-04Actuator 35070-1014 · replaces Cessna 35070-1014 · P206, TP206, U206
1996-08-04Type 1U460 Audio Selector Panel 1U460-001 · replaces British Aerospace 1U460-001 · Operations) Limited (146-RJ Series
1996-08-04Control Unit 35670-1114 · replaces Cessna 35670-1114 · 206, 210
1996-08-04Altitude Sensor 44400-0001 · replaces Cessna 44400-0001 · 414A, 421C, 208
1996-08-04Slaving Accessory 44720-0002 · replaces Cessna 44720-0002 · 337, T337, 402C
1996-08-04Actuator 45850-4913 · replaces Cessna 45850-4913 · 402C, 414A
1996-08-04Actuator 35070-0128 · replaces Cessna 35070-0128 · 337, T337, P337
1996-08-04Airspeed Switch 45569-0125 · replaces Cessna 45569-0125 · R182, TR182, 340A
1996-08-04Computer Amplifier 42680-0006 · replaces Cessna 42680-0006 · 404
1996-08-04Actuator 44430-3235 · replaces Cessna 44430-3235 · U206, TU206, T303
1996-08-04Control Unit 41780-1128 · replaces Cessna 41780-1128 · 340A, 402B, 402C
1996-08-04Mode Selector 48110-0001 · replaces Cessna 48110-0001 · 425
1996-08-04Yaw Accessory 48320-0000 · replaces Cessna 48320-0000 · 441
1996-08-04Control Unit 41780-1028 · replaces Cessna 41780-1028 · 402B, 414, 340
1996-08-04Computer Amplifier 42660-1201 · replaces Cessna 42660-1201 · 180, 185, 182
1996-08-04Connector Kit 44800-0024 · replaces Cessna 44800-0024 · 425
1996-08-04Actuator Hardware Kit 50670-0001 · replaces Cessna 50670-0001 · 425
1996-08-04Computer Amplifier 42680-0002 · replaces Cessna 42680-0002 · 310R, T310R
1996-08-04Actuator 26360-0100 · replaces Cessna 26360-0100 · 182, P206, TP206
1996-08-04Computer Amplifier 43610-1200 · replaces Cessna 43610-1200 · 207
1996-08-04Control Unit 35670-1128 · replaces Cessna 35670-1128 · 206, 210, 337
1996-08-04Indicator Assembly 46450-0404 · replaces Cessna 46450-0404 · 210, 208, 310R
1996-08-04Altitude Sensor 44400-0002 · replaces Cessna 44400-0002 · 414A, 421C
1996-08-04Type 1U471 Audio Selector Panel 1U471-001 · replaces British Aerospace 1U471-001 · Operations) Limited (146-RJ Series
1996-08-04Mounting Assembly 43027-0000 · replaces Cessna 43027-0000 · 402B, 310R, T310R
1996-08-04Flux Detector 44770-0010 · replaces Cessna 44770-0010 · R182, TR182, U206
1996-08-04Slaving Meter 38530-0000 · replaces Cessna 38530-0000 · 401B, 402B, 414
1996-08-04Air Data Unit 46250-0001 · replaces Cessna 46250-0001 · 425
1996-08-04Computer Amplifier 37970-0328 · replaces Cessna 37970-0328 · 337, T337
1996-08-04Actuator Mount 42730-2908 · replaces Cessna 42730-2908 · 180, 185, 210
1996-08-04Type 1U454 VHF/NAV Frequency Control 1U454-001 · replaces British Aerospace 1U454-001 · Operations) Limited (146-RJ Series
1996-08-04Connector Kit 36885-0026 · replaces Cessna 36885-0026 · 441
1996-08-04Flex Detector 41370-0000 · replaces Cessna 41370-0000 · 210, 337, P337
1996-08-04Control Unit 41540-1114 · replaces Cessna 41540-1114 · U206, 207, 206
1996-08-04Computer Amplifier 37970-1228 · replaces Cessna 37970-1228 · 310R, T310R, 340
1996-08-04Computer Amplifier 42680-0004 · replaces Cessna 42680-0004 · 421C
1996-08-04Computer Amplifier 41120-1228 · replaces Cessna 41120-1228 · 210
1996-08-04Sensor Acceleration 46780-0000 · replaces Cessna 46780-0000 · R182, TR182, U206
1996-08-04Connector Kit 36885-0013 · replaces Cessna 36885-0013 · 337, P337
1996-08-04Actuator 40280-0328 · replaces Cessna 40280-0328 · 210, 337, P337
1996-08-04Actuator 46220-2900 · replaces Cessna 46220-2900 · 425
1996-08-04Pitch Trim Sensor 37580-0028 · replaces Cessna 37580-0028 · 310R, T310R, 340
1996-08-04Actuator Mount 46230-2811 · replaces Cessna 46230-2811 · 425
1996-08-04Control Unit 41540-1128 · replaces Cessna 41540-1128 · U206, TU206, 210
1996-08-04Flux Detector 38170-0000 · replaces Cessna 38170-0000 · 401, 401A, 401B
1996-08-04Actuator 53100-0091 · replaces Cessna 53100-0091 · P210
The first 80 of 226. All part makers.
Equipment approvals technical standard order authorisations
2019-11-07TSO-C50c · AUDIO SELECTOR PANELS AND AMPLIFIERS · * · other and general
2019-11-07TSO-C35d · AIRBORNE RADIO MARKER RECEIVING EQUIPMENT · * · instruments and avionics
2019-11-07TSO-C74c · AIRBORNE ATC TRANSPONDER EQUIPMENT · *, *, * · instruments and avionics
2019-11-07TSO-C66b · Airborne Distance Measuring Equipment (DME) Operating Within Radio Frequency Range of... · * · instruments and avionics
2019-11-07TSO-C10b · ALTIMETER, PRESSURE ACTUATED, SENSITIVE TYPE · *, * · instruments and avionics
2019-11-07TSO-C34c · Airborne ILS Glide Slope Receiving Equipment · *, *, * · other and general
2019-11-07TSO-C37b · VHF Radio Communications Transmitting Equipment Operating within the Radio Frequency... · *, *, * · instruments and avionics
2019-11-07TSO-C88 · Automatic Pressure Altitude Digitizer Equipment · *, * · other and general
2019-11-07TSO-C66a · Airborne Distance Measuring Equipment (For Air Carrier Aircraft) · *, *, * · other and general
2019-11-07TSO-C41b · Airborne Automatic Direction Finding (ADF) Equipment · *, *, * · other and general
2019-11-07TSO-C41c · Airborne Automatic Direction Finding (ADF) Equipment · *, * · other and general
2019-11-07TSO-C40b · VOR Radio Receiving Equipment Operating within the Radio-Frequency Range of 108-118 Meghertz · *, *, * · instruments and avionics
2019-11-07TSO-C50b · Aircraft Audio and Interphone Amplifiers · *, * · other and general
2019-11-07TSO-C40a · VOR Radio Receiving Equipment · *, *, * · instruments and avionics
2019-11-06TSO-C36c · ILS Localizer Receiving Equipment · *, *, * · other and general
2019-11-06TSO-C9c · AUTOMATIC PILOTS · *, *, * · other and general
2019-11-06TSO-C8b · Vertical Velocity Instruments (Rate-of-Climb) · *, *, * · other and general
2019-11-06TSO-C55 · FUEL AND OIL QUANTITY INSTRUMENTS (RECIPROCATING ENGINE AIRCRAFT) · *, *, * · engine
2019-11-06TSO-C47 · PRESSURE INSTRUMENTS - FUEL, OIL, AND HYDRAULIC · *, *, * · heating, ice protection and utility systems
2019-11-06TSO-C45 · Manifold Pressure Indicating Instruments · *, * · other and general
2019-11-06TSO-C10a · Aircraft Altimeter, Pressure Actuated, Sensitive Type · * · instruments and avionics
2019-11-06TSO-C6c · Direction Instruments (Magnetic) (Gyroscopically Stabilized) · *, *, * · other and general
2019-11-06TSO-C4C · BANK AND PITCH INSTRUMENTS · *, *, * · other and general
2019-11-06TSO-C4b · Bank and Pitch Instruments · *, *, * · other and general
2019-11-06TSO-C34b · Airborne ILS Glide Slope Receiving Equipment · * · other and general
2019-11-06TSO-C2B · Airspeed Indicator · *, P/N Gl212 · instruments and avionics
2019-11-06TSO-C50 · Aircraft Audio and Interphone Amplifiers · * · other and general
2019-11-06TSO-C8a · Vertical Velocity Instruments (Rate-of-Climb) · *, * · other and general
2019-11-06TSO-C43 · Temperature Indicators · *, *, * · other and general
2019-11-06TSO-C49a · Electric Tachometer: Magnetic Drag (for Air Carrier Aircraft) · *, *, * · other and general
2019-11-05TSO-C5b · Direction Instrument, Nonmagnetic, Gyro-Stabilized Type (Directional Gyro) · *, *, * · instruments and avionics
2004-06-23TSO-C37D · VHF RADIO COMMUNICATIONS TRANSMITTING EQUIPMENT OPERATING WITHIN THE RADIO FREQUENCY... · *, *, VHF COMM / NAV / ADF Radio Control Panel · instruments and avionics
2004-06-23TSO-C34E · ILS GLIDE SLOPE RECEIVING EQUIPMENT OPERATING WITHIN THE RADIO FREQUENCY RANGE OF... · *, *, VHF COMM / NAV / ADF Radio Control Panel · instruments and avionics
2004-06-23TSO-C36E · AIRBORNE ILS LOCALIZER RECEIVING EQUIPMENT OPERATING WITHIN THE RADIO FREQUENCY RANGE... · *, *, VHF COMM / NAV / ADF Radio Control Panel · instruments and avionics
2004-06-23TSO-C66C · DISTANCE MEASURING EQUIPMENT (DME) OPERATING WITHIN THE RADIO FREQUENCY RANGE OF... · *, *, VHF COMM / NAV / ADF Radio Control Panel · instruments and avionics
2004-06-23TSO-C38D · VHF RADIO COMMUNICATIONS RECEIVING EQUIPMENT OPERATING WITHIN THE RADIO FREQUENCY... · *, *, VHF COMM / NAV / ADF Radio Control Panel · instruments and avionics
2004-06-23TSO-C40C · VOR Receiving Equipment Operating Within The Radio Frequency Range Of 108-117.95... · *, *, VHF COMM / NAV / ADF Radio Control Panel · instruments and avionics
2004-06-23TSO-C41d · AIRBORNE AUTOMATIC DIRECTION FINDING (ADF) EQUIPMENT · VHF COMM / NAV / ADF Radio Control Panel · instruments and avionics
1994-01-01TSO-C38D · VHF RADIO COMMUNICATIONS RECEIVING EQUIPMENT OPERATING WITHIN THE RADIO FREQUENCY... · *, * · instruments and avionics
1994-01-01TSO-C40C · VOR Receiving Equipment Operating Within The Radio Frequency Range Of 108-117.95... · *, * · instruments and avionics
1994-01-01TSO-C34E · ILS GLIDE SLOPE RECEIVING EQUIPMENT OPERATING WITHIN THE RADIO FREQUENCY RANGE OF... · *, * · instruments and avionics
1994-01-01TSO-C37D · VHF RADIO COMMUNICATIONS TRANSMITTING EQUIPMENT OPERATING WITHIN THE RADIO FREQUENCY... · *, * · instruments and avionics
1990-01-01TSO-C5C · Direction Instrument, Nonmagnetic, Gyro-Stabilized Type (Directional Gyro) · *, *, * · instruments and avionics
1988-01-01TSO-C66C · DISTANCE MEASURING EQUIPMENT (DME) OPERATING WITHIN THE RADIO FREQUENCY RANGE OF... · *, * · instruments and avionics
TSO-C47 · Pressure Instruments - Fuel, Oil, And Hydraulic · * · heating, ice protection and utility systems
TSO-C40B · Vor Radio Receiving Equipment Operating Within The Radio-Frequency Range Of 108-118 Meghertz · *, *, * · instruments and avionics
TSO-C50C · Audio Selector Panels And Amplifiers · * · other and general
TSO-C88 · Automatic Pressure Altitude Digitizer Equipment · *, * · other and general
TSO-C41C · Airborne Automatic Direction Finding (Adf) Equipment · *, * · other and general
TSO-C43 · Temperature Indicators · * · other and general
TSO-C34C · Airborne Ils Glide Slope Receiving Equipment · *, *, * · other and general
TSO-C34B · Airborne Ils Glide Slope Receiving Equipment · * · other and general
TSO-C41B · Airborne Automatic Direction Finding (Adf) Equipment · *, *, * · other and general
TSO-C66B · Airborne Distance Measuring Equipment (Dme) Operating Within Radio Frequency Range Of... · * · instruments and avionics
TSO-C50C · Audio Selector Panels And Amplifiers · * · other and general
TSO-C74C · Airborne Atc Transponder Equipment · *, *, * · instruments and avionics
TSO-C35D · Airborne Radio Marker Receiving Equipment · * · instruments and avionics
TSO-C36E · Airborne Ils Localizer Receiving Equipment Operating Within The Radio Frequency Range... · *, * · instruments and avionics
TSO-C50B · Aircraft Audio And Interphone Amplifiers · *, * · other and general
TSO-C38B · Vhf Radio Communications Receiving Equipment Operating Within 117.975 To 136.000 Megahertz · *, *, * · instruments and avionics
Source: FAA Dynamic Regulatory System (type certificate data sheets, supplemental type certificates, parts manufacturer approvals, technical standard order authorisations). An organisation's name is as the FAA spelled it on each record; related spellings are separate pages.