Florida-based Southeast Aerospace (SEA) has received expanded international approvals for the Garmin GI 275 Electronic Flight Instrument in Part 25 aircraft on an Approved Model List as an Electronic Standby Instrument (ESI) and as an Instantaneous Vertical Speed Indicator (IVSI).

Following the initial FAA approvals in Q1 2023, SEA has now also secured validations from the TCCA, Argentina's ANAC and EASA. This extends SEA's global reach beyond the prior approval from Brazil's ANAC and Mexico's AFAC. The FAA issued STC numbers ST01985WI and ST02004WI, respectively.

Luke Gomoll, SEA aircraft modifications sales representative, says: "This extended approval allows us to support the installation of the GI 275 as a cost-effective replacement for ageing flight instruments in a broad range of Part 25 aircraft within these regions. Owners and operators of business jets can now address obsolescence issues and take advantage of the enhanced capabilities offered by the Garmin GI 275 on their flight decks. These international approvals reinforce the value and applicability of our two Part 25 AML STCs for installation of the GI 275 as an ESI and IVSI in the in the global business aviation sector."

The ESI version of the Garmin GI 275 electronic flight instrument offers an all-in-one option to replace pre-existing, obsolete, higher-cost ESI and mechanical standby instruments, while the IVSI version of the GI 275 electronic flight instrument offers the opportunity to replace ageing and obsolete IVA-81A and IVA-81D IVSI units.

Lightweight and compact, the GI 275 is intentionally designed to take advantage of the common 3.125 inch flight instrument size, reducing installation time and preserving the existing aircraft panel. SEA has designed, manufactured and PMA'd a 3-ATI to 3.125 inch adapter plate to simplify the installation further. The adapter plate is available for purchase with the STC.

The complete AML STC list for the GI 275 ESI reads as follows:

- Challenger 300

- Global Express, XRS, 5000, GVFD, 5500, 6000 and 6500

- Learjet 55C and 60

- Dassault Falcon 50 and 2000 series

- Embraer EMB-135BJ (Legacy 600)

- Gulfstream G-IV, G-V, G150, 200 and Galaxy

- Textron Citation 550, 560, 560 Excel, XLS, 650, Hawker 800(A)(B)(XP), 1000(A)(B), 750, 900XP and 4000

The complete AML STC list for the GI 275 IVSI is as follows:

- Challenger 600 and 601 series

- Dassault Fan Jet Falcon C, D, E, F, G series, Mystere-Falcon 200, Falcon 10, Mystere-Falcon 50 and 900

- Israel Aircraft Industries 1121, 1121A, 1121B, 1123, 1124 and 1124A

- Gulfstream 1125 Westwind Astra, Astra SPX and G-1159, G-1159A and G-1159B

- Learjet 24, 24A, 24B, 24B-A, 24C, 24D, 24D-A, 24E, 24F, 24F-A, 25, 25A, 25B, 25C, 25D, 25F, 28, 29, 31, 31A, 35, 35A (C-21A), 36, 36A, 55, 55B and 55C

- Textron BAe125 series 800A, 800B, 1000A, 1000B, Hawker 800, 800XP, 1000, Mitsubishi MU-300-10, Citation 550, S550, 560 and 650.