<10 units at Tier 2 — ships worldwide
Brand-new BendixKing MST-70B Mode S transponders. FAA & EASA certified. 66% below list price.
What is ADS-B Out?
ADS-B Out (Automatic Dependent Surveillance – Broadcast) continuously broadcasts your aircraft's GPS position, altitude, speed, and identification to ATC and nearby traffic. It replaces radar as the primary surveillance technology worldwide.
Since January 2020 in the US, and progressively across EASA, ICAO, and regional authorities, ADS-B Out is mandatory for operating in controlled airspace. Non-compliant aircraft face grounding and fines.
The MST-70B is a Mode S transponder with built-in ADS-B Out 1090ES — a direct slide-in replacement for the legacy MST-67A, adding full compliance without rewiring or panel modifications.
DO-260B compliant. Global standard for Mode S ADS-B Out.
Elementary and Enhanced Surveillance. Full EASA CS-ACNS compliance.
TSO-C112d, TSO-C166b. Validated STC for Part 23 and Part 25.
Same ARINC 404A tray, same connectors as MST-67A. No panel mods.
Why Buy Now
01
Honeywell list price for MST-67A repair is $16,270 — more than a brand-new MST-70B. Lead time is 4–8 weeks, and you still won't have ADS-B Out. The MST-70B drops into the same tray, same connectors — brand new with full compliance.
Repair $16,270→$14,500 new
02
Non-compliance grounds your aircraft. Mandates active worldwide:
03
We acquired a limited stock at exceptional terms. Pricing is tiered — once a tier sells out, the price moves up permanently.
Tier 1 is already gone.
| Tier | Price / unit | Units | Status |
|---|---|---|---|
| Tier 1 | $12,500 | 10 | Sold out |
| Tier 2 | $14,500 | <10 | Current — almost gone |
| Tier 3 | $17,500 | 50+ | Next |
BendixKing list price: $42,153. Even Tier 3 is 58% below list.
Repair vs. Replace
Honeywell MST-67A repair list price: $16,270. Exchange: $21,151. New unit: $78,304 with delivery in November 2028. Even after repair, your aircraft still won't be ADS-B Out compliant.
For $14,500, get a brand-new MST-70B — same tray, same connectors, ADS-B Out included. Ships in days, not years.
Save time, save money, gain compliance in one step.
| MST-67A (Honeywell list) | MST-70B (our price) | |
|---|---|---|
| Repair | $16,270 | $14,500 brand new |
| Exchange | $21,151 | |
| New unit | $78,304 | |
| Delivery | 4–8 weeks (repair) / Nov 2028 (new) | Ships immediately |
| ADS-B Out | ✗ Not included | ✓ Full DO-260B |
| Warranty | Limited repair warranty | New unit warranty |
| Installation | Same tray | Same tray & connectors |
| Future-proof | End of life | ELS, EHS, ADS-B v2 |
ADS-B Out Pricing
All units are new production. Worldwide shipping included. STC right-to-use letter available ($2,500/aircraft).
Tier 2 pricing — fewer than 10 units remaining. Tier 1 at $12,500 — sold out.
MST-70B
MST-67A drop-in replacement. Same tray, same connectors. Full ADS-B Out 1090ES.
List: $42,153
$14,500
↓ Save $27,653 (66%)
MST-70B-DUAL
2× MST-70B for dual redundancy. Required for certain operations and airspace classes.
List: $84,306
$27,500
↓ Save $56,806 (67%)
MST-70B-ADSB-KIT
2× MST-70B + NXG-900 WAAS GPS. Full ADS-B Out compliance in one package.
List: $94,201
$35,000
↓ Save $59,201 (63%)
NXG-900
Standalone NXG-900 GPS. TSO-C145c/C154c. WAAS, EGNOS, GAGAN, MSAS globally.
List: $9,895
$7,900
↓ Save $1,995 (20%)
Volume pricing available. 100+ units in stock for immediate delivery.
Tier 2 pricing. Prices in USD, excluding VAT. EU buyers: applicable VAT added at checkout. STC right-to-use letter ($2,500/aircraft) available — we handle the paperwork for you.
Specifications
Compatible Equipment
Pre-approved under AML STC SA02677LA (Part 23) and ST02609LA (Part 25). Additional equipment verifiable via STC Appendix A.
ARINC 429 label 016
Any panel providing ARINC 429 label 016 (Transponder Control) can be verified via STC Appendix A.
ARINC 429 labels 203–236
Required for Enhanced Surveillance (EASA, MTOW >5,700 kg / >250 kt). ADC must output barometric altitude label 203. Not required in USA or most non-EASA regions. Need custom integration?
TSO-C145 / C146 WAAS
GPS source must be TSO-C145/C146 WAAS-capable per DO-229D. Output via ARINC 429 or ARINC 743A.
ARINC 429 High Speed
Any TCAS II with ARINC 429 HS input can be verified via STC Appendix A. Unlisted system?
Works alongside Garmin, Collins, or Universal cockpits.MST-70B operates independently using its own dedicated control panel and NXG-900 GPS — no rewiring of existing avionics required. For EHS (EASA), the aircraft's original ARINC 429 ADC is used. In the USA and most non-EASA regions, EHS is not required. Need custom STC for your cockpit configuration?
Approved Aircraft
AML STC validated by FAA, EASA, Transport Canada, and ANAC Brazil.
Helicopters with documented MST-67A installations — direct MST-70B upgrade candidates. Custom STC required per aircraft S/N.
These helicopters have documented MST-67A installations — MST-70B is a drop-in replacement using the same tray and connectors. Custom STC developed per aircraft S/N. Additional rotorcraft types available on request —request a custom STC evaluation →
STC right-to-use letter: $2,500/aircraft S/N. Validated: FAA, EASA, TCCA, ANAC Brazil.
Custom STC
We develop custom Supplemental Type Certificates for new aircraft types — including helicopters and special missions platforms. Contact us with your model and we'll evaluate feasibility and timeline.
Installers can also use the FAA Policy Memo (March 2, 2016) as an alternative approval path for previously approved ADS-B transponder/GPS pairings.
EASA DOA and FAA DER capabilities. STC experience across Part 23, Part 25, and Part 27/29.
UAS / Drones
The MST-70B is TSO-C112d/C166b certified — the same standard required for manned aircraft. For UAS/RPAS operations above 50 kg MTOW, it provides full ADS-B Out 1090ES compliance for airspace integration worldwide.
FAA Part 108 ready. Full ELS + EHS capability for international airspace integration. Proven BendixKing reliability in demanding environments.
Target: MALE/tactical drones, cargo UAS, eVTOL prototypes, maritime patrol, ISR platforms.
Request Drone QuoteWeight
2.5 kg — minimal payload impact
Power
28V DC, 55W maximum
Antennas
2× diversity ports
Altitude
0–55,000 ft operational
Certification
TSO-C112d, C166b, DO-260B, ICAO Level 3
Documentation
Product brochures available immediately. Technical documents sent to your email upon request.
Free Download
Product overview, specifications, compatible aircraft, pricing info.
Free Download
WAAS/SBAS GPS specs, FIS-B capabilities, certifications.
Email Required
AML STC ST02632LA / SA02677LA. Full approved aircraft list.
Email Required
FAA and EASA approved AFMS for MST-70B.
Email Required
Full STC installation manual (8009629-100) for certified installers.
Email Required
Instructions for Continued Airworthiness. Equipment list (IEL).
EASA Part-145 certified facility — Kunovice, Czech Republic. RVSM re-certification available.
EASA Part-145: CZ.145.0094 · FAA Repair Station: 5R2Y718D
18
Years in Aviation
8,900+
Parts Shipped 24–25
EASA
Part-145
FAA
Repair Station
BK
Auth. Dealer
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FAQ
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+420 721 420 000 · polak@airteam.eu
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