2-inch
Digital Instruments
Digital Attitude Indicator
The MD23-342 is a solid-state instrument that displays attitude, slip, turn rate and heading information during normal or standby operation. The certified, digital attitude indicator provides independent attitude without the need for GPS, magnetometer or airspeed.
Night Vision Imaging System (NVIS) compatible versions are available.

Benefits and Specifications
Four Primary Functions | Attitude, slip, turn rate and heading Utilize modern solid-state MEMS gyro and accelerometer |
ARINC | Heading with primary avionics via external ARINC input |
Easy Installation | User-selectable panel tilt and roll-offset |
Size | Fits standard 2-inch panel cutout |
Battery | Rechargeable, field-replaceable emergency battery (available) |
Lightweight | Weighs just 0.4 lbs |
Simple user interface | Single, push-and-turn control knob |
Display | Daylight readable LCD and smooth, high-resolution graphics |
Lighting | Manual, external lighting control or built-in photocell for automatic dimming |
Night Vision Imaging System (NVIS) | NVIS compatible units (available) |
Certified | TSO certified (Design Assurance Level A) |
Made in the USA | Designed and built in Wichita, Kansas, USA |
Warranty | Two-year limited warranty |
Power Input | 10–32 VDC 0.14A @ 28 VDC; 4 watts nominal |
Data Input | ARINC 429: Low or high speed; Label 320 |
Data Output | ARINC 429: Low or high speed; Labels 320, 324, 325 |
Operating Range | 360° angle, 500° per second for pitch and roll (maximum) |
Lighting | 5, 14, or 28 VDC external control or internal photocell for automatic dimming |
Battery | Rechargeable, field-replaceable emergency battery supply (available) P/N 6430006-(1) Technology: Nickel-Metal Hydride (NiMH) Attributes: 0.25A @ 24 VDC nominal (6 Wh capacity) Runtime: 60 minutes @ 0.25A |
Weight | 0.4 lbs (0.17 kg) |
Mounting | Rear panel mounted, (4) #6–32 screws, 2.25-inch round bezel |
Dimensions | 2.43 x 2.43 x 1.0 inches (61.7 x 61.7 x 25.4 millimeters) |
Mating Connector | P/N 9019162-1: 26-pin, D-Sub electrical connector (Quick Disconnect) |
Certification | FAA TSO certified to C3e, C4c, C8e, C10c, C106, C113b, C201 RTCA DO-160G qualified RTCA DO-178C qualified, Design Assurance Level (DAL) A |
Rights | U.S. Patent 11,048,389 |
Digital Attitude Indicator Supplemental Type Certificates (STCs)
Select your aircraft manufacturer from the dropdown menu to view a list of applicable STCs.
- Select Aircraft Manufacturer
- Aerostar
- Beechcraft
- Cessna
- Dornier Luftfahrt GmbH
- Learjet Inc. (Bombardier)
- Mitsubishi
- Pilatus
- Piper
- Twin Commander
- Viking Air
Manufacturer: Aerostar
STC Number | Aircraft Model |
SA02010WI |
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Manufacturer: Beechcraft
STC Number | Aircraft Model |
SA02010WI |
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SA02010WI |
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SA02010WI |
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SA02010WI |
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SA02010WI |
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SA02010WI |
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SA02010WI |
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SA02010WI |
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Manufacturer: Cessna
STC Number | Aircraft Model |
SA02010WI |
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SA02010WI |
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SA02010WI |
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SA02010WI |
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SA02010WI |
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SA02010WI |
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SA02010WI |
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SA02010WI |
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SA02010WI |
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Manufacturer: Dornier Luftfahrt GmbH
STC Number | Aircraft Model |
SA02010WI |
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Manufacturer: Learjet Inc. (Bombardier Inc.)
STC Number | Aircraft Model |
ST01138DE |
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Manufacturer: Mitsubishi
STC Number | Aircraft Model |
SA02010WI |
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SA02010WI |
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Manufacturer: Pilatus
STC Number | Aircraft Model |
SA02010WI |
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Manufacturer: Piper
STC Number | Aircraft Model |
SA02010WI |
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SA02010WI |
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SA02010WI |
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Manufacturer: Twin Commander
STC Number | Aircraft Model |
SA02010WI |
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SA02010WI |
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SA02010WI |
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Manufacturer: Viking Air
STC Number | Aircraft Model |
SA02010WI |
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MD23-342 Resources
Product Fliers and Brochures
Technical Documents
Service Notifications
FAA Approved Model List (AML)
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Request Information
Kansas
International: +1 316-630-0101
Toll-free: 800-821-1212
Email: mcia@mcico.com
California
International: +1 818-786-0300
Toll-free: 800-345-7599
Email: mcia@mcico.com