The U.S. aircraft register, updated daily
Approved modifications · supplemental type certificate · current · amended

SA01473SE (2 OF 5)

Installation of a GTX 32 (mode C), GTX 33 (mode S), or GTX 33D (mode S with diversity) Remote Transponde. Held by Garmin At INC., which holds 66 approved modifications in all. Last revised May 21, 2008. System: other and general.

What it applies to

Kind of product
Aircraft
Design holder
Bombardier Inc.; Bombardier Inc.; Bombardier Inc.; Bombardier Inc.; Bombardier Inc.; Cessna Aircraft Company; Cessna Aircraft Company; Cessna Aircraft Company; Cessna Aircraft Company; Cessna Aircraft Company; Cessna Aircraft Company; Cessna Aircraft Company; Cessna Aircraft Company; Cessna Aircraft Company; Cessna Aircraft Company; Cessna Aircraft Company; Cessna Aircraft Company; Cessna Aircraft Company; Cessna Aircraft Company; Cessna Aircraft Company; Cessna Aircraft Company; Cessna Aircraft Company; Cessna Aircraft Company; Cessna Aircraft Company; Cessna Aircraft Company; Cessna Aircraft Company; Cessna Aircraft Company; Cessna Aircraft Company; Cessna Aircraft Company; Cessna Aircraft Company; Cessna Aircraft Company; Cessna Aircraft Company; Cessna Aircraft Company; Cessna Aircraft Company; Cessna Aircraft Company; Cessna Aircraft Company; Cessna Aircraft Company; Cessna Aircraft Company; Cessna Aircraft Company; Cessna Aircraft Company; Cessna Aircraft Company; Cessna Aircraft Company; Cessna Aircraft Company; Cessna Aircraft Company; Cessna Aircraft Company; Cessna Aircraft Company; Cessna Aircraft Company; Cessna Aircraft Company; Cessna Aircraft Company; Cessna Aircraft Company; Cessna Aircraft Company; Cessna Aircraft Company; Cessna Aircraft Company; Cessna Aircraft Company; Cessna Aircraft Company; Cessna Aircraft Company; Cessna Aircraft Company; Cessna Aircraft Company; Cessna Aircraft Company; Cessna Aircraft Company; Cessna Aircraft Company; Cessna Aircraft Company; Cessna Aircraft Company; Cessna Aircraft Company; Cessna Aircraft Company; Cessna Aircraft Company; Cessna Aircraft Company; Cessna Aircraft Company; Cessna Aircraft Company; Cessna Aircraft Company; Cessna Aircraft Company; Cessna Aircraft Company; Cessna Aircraft Company; Cessna Aircraft Company; Cessna Aircraft Company; Cessna Aircraft Company; Cessna Aircraft Company; Cessna Aircraft Company; Cessna Aircraft Company; Cessna Aircraft Company; Cessna Aircraft Company; Cessna Aircraft Company; Cessna Aircraft Company; Cessna Aircraft Company; Cessna Aircraft Company; Cessna Aircraft Company; Cessna Aircraft Company; Cessna Aircraft Company; Cessna Aircraft Company; Cessna Aircraft Company; Cessna Aircraft Company; Cessna Aircraft Company; Cessna Aircraft Company; Cessna Aircraft Company; Cessna Aircraft Company; Cessna Aircraft Company; Cessna Aircraft Company; Cessna Aircraft Company; Cessna Aircraft Company; Cessna Aircraft Company; Cessna Aircraft Company; Cessna Aircraft Company; Cessna Aircraft Company; Cessna Aircraft Company; Cessna Aircraft Company; Cessna Aircraft Company; Cessna Aircraft Company; Cessna Aircraft Company; Cessna Aircraft Company; Cessna Aircraft Company; Cessna Aircraft Company; Cessna Aircraft Company; Cessna Aircraft Company; Cessna Aircraft Company; Cessna Aircraft Company; Cessna Aircraft Company; Cessna Aircraft Company; Cessna Aircraft Company; Cessna Aircraft Company; Cessna Aircraft Company; Cessna Aircraft Company; Cessna Aircraft Company; Cessna Aircraft Company; Cessna Aircraft Company; Cessna Aircraft Company; Cessna Aircraft Company; Cessna Aircraft Company; Cessna Aircraft Company; Cessna Aircraft Company; Cessna Aircraft Company; Cessna Aircraft Company; Cessna Aircraft Company; Cessna Aircraft Company; Cessna Aircraft Company; Cessna Aircraft Company; Cessna Aircraft Company; Cessna Aircraft Company; Cessna Aircraft Company; Cessna Aircraft Company; Cessna Aircraft Company; Cessna Aircraft Company; Cessna Aircraft Company; Cessna Aircraft Company; Cessna Aircraft Company; Cessna Aircraft Company; Cessna Aircraft Company; Cessna Aircraft Company; Cessna Aircraft Company; Cessna Aircraft Company; Cessna Aircraft Company; Cessna Aircraft Company; Cessna Aircraft Company; Cessna Aircraft Company; Cessna Aircraft Company; Cessna Aircraft Company; Cessna Aircraft Company; Cessna Aircraft Company; Cessna Aircraft Company; Cessna Aircraft Company; Cessna Aircraft Company; Cessna Aircraft Company; Cessna Aircraft Company; Cessna Aircraft Company; Cessna Aircraft Company; Cessna Aircraft Company; Cessna Aircraft Company; Cessna Aircraft Company; Cessna Aircraft Company; Cessna Aircraft Company; Cessna Aircraft Company; Cessna Aircraft Company; Cessna Aircraft Company; Cessna Aircraft Company; Cessna Aircraft Company; Cessna Aircraft Company; Cessna Aircraft Company; Cessna Aircraft Company; Cessna Aircraft Company; Cessna Aircraft Company; Cessna Aircraft Company; Cessna Aircraft Company; Cessna Aircraft Company; Cessna Aircraft Company; Cessna Aircraft Company; Cessna Aircraft Company; Cessna Aircraft Company; Cessna Aircraft Company; Cessna Aircraft Company; Cessna Aircraft Company; Cessna Aircraft Company; Cessna Aircraft Company; Cessna Aircraft Company; Cessna Aircraft Company; Cessna Aircraft Company; Cessna Aircraft Company; Cessna Aircraft Company; Cessna Aircraft Company; Cessna Aircraft Company; Cessna Aircraft Company; Cessna Aircraft Company; Cessna Aircraft Company; Cessna Aircraft Company; Cessna Aircraft Company; Cessna Aircraft Company; Cessna Aircraft Company; Cessna Aircraft Company; Cessna Aircraft Company; Cessna Aircraft Company; Cessna Aircraft Company; Cessna Aircraft Company; Cessna Aircraft Company; Cessna Aircraft Company; Cessna Aircraft Company; Cessna Aircraft Company; Cessna Aircraft Company; Cessna Aircraft Company; Cessna Aircraft Company; Cessna Aircraft Company; Cessna Aircraft Company; Cessna Aircraft Company; Cessna Aircraft Company; Cessna Aircraft Company; Cessna Aircraft Company; Cessna Aircraft Company; Cessna Aircraft Company; Cessna Aircraft Company; Cessna Aircraft Company; Cessna Aircraft Company; Cirrus Design Corporation; Cirrus Design Corporation; Commander Aircraft Company; Commander Aircraft Company; Commander Aircraft Company; Commander Aircraft Company; Commander Aircraft Company; Commander Aircraft Company; Commander Aircraft Company; Commander Aircraft Company; deHavilland; Inc. (Canada); deHavilland; Inc. (Canada); deHavilland; Inc. (Canada); Rust; Robert E.; Rust; Robert E.; Rust; Robert E.
Models
DHC-3, DHC-6-1, DHC-6-100, DHC-6-200, DHC-6-300, 310, 310A, 310B, 310C, 310D, 310E, 310F, 310G, 310H, 310I, 310J, 310J-1, 310K, 310L, 310N, 310P, 310Q, 310R, E310H, E310J, T310P, T310Q, T310R, 172, 172A, 172B, 172C, 172D, 172E, 172F, 172G, 172H, 172I, 172K, 172L, 172M, 172N, 172P, 172Q, 172R, 172S, 182, 182A, 182B, 182C, 182D, 182E, 182F, 182G, 182H, 182J, 182K, 182L, 182M, 182N, 182P, 182Q, 182R, 182S, 182T, R182, T182, T182T, TR182, 172RG, 175, 175A, 175B, 175C, P172D, R172E, R172F, R172G, R172H, R172J, R172K, 210, 210-5 (205), 210-5A (205A), 210A, 210B, 210C, 210D, 210E, 210F, 210G,...
Type certificates
A-815, A9EA, A9EA, A9EA, A9EA, 3A10, 3A10, 3A10, 3A10, 3A10, 3A10, 3A10, 3A10, 3A10, 3A10, 3A10, 3A10, 3A10, 3A10, 3A10, 3A10, 3A10, 3A10, 3A10, 3A10, 3A10, 3A10, 3A10, 3A12, 3A12, 3A12, 3A12, 3A12, 3A12, 3A12, 3A12, 3A12, 3A12, 3A12, 3A12, 3A12, 3A12, 3A12, 3A12, 3A12, 3A12, 3A13, 3A13, 3A13, 3A13, 3A13, 3A13, 3A13, 3A13, 3A13, 3A13, 3A13, 3A13, 3A13, 3A13, 3A13, 3A13, 3A13, 3A13, 3A13, 3A13, 3A13, 3A13, 3A13, 3A17, 3A17, 3A17, 3A17, 3A17, 3A17, 3A17, 3A17, 3A17, 3A17, 3A17, 3A17, 3A21, 3A21, 3A21, 3A21, 3A21, 3A21, 3A21, 3A21, 3A21, 3A21, 3A21, 3A21, 3A21, 3A21, 3A21, 3A21, 3A21, 3A21, 3A21, 3A21, 3A21, 3A21, 3A21, 3A21, 3A21, 3A21, 3A21, 3A21, 3A24, 3A24, 3A24, 3A24, 3A24, 3A24, 3A24, 3A24, 3A25, 3A25, 3A25, 3A25, 3A25, 3A25, 3A25, 3A25, 3A25, 3A25, 3A25, 5A6, 5A6, 5A6, 5A6, 5A6, 5A6, 5A6, 5A6, 5A6, 5A6, 5A6, A-790, A-790, A-790, A-790, A-799, A-799, A-799, A13CE, A13CE, A13CE, A16CE, A16CE, A16CE, A16CE, A1WI, A1WI, A20CE, A25CE, A25CE, A28CE, A2CE, A34CE, A37CE, A37CE, A37CE, A4CE, A4CE, A4CE, A4CE, A4CE, A4CE, A4CE, A4CE, A4CE, A4CE, A4CE, A4CE, A4CE, A4CE, A4CE, A4CE, A4CE, A4CE, A4CE, A4CE, A4CE, A4CE, A4CE, A4CE, A4CE, A4CE, A4CE, A4CE, A4CE, A6CE, A6CE, A6CE, A6CE, A6CE, A6CE, A6CE, A6CE, A6CE, A6CE, A6CE, A6CE, A6CE, A6CE, A6CE, A6CE, A6CE, A6CE, A6CE, A7CE, A7CE, A7CE, A7CE, A7CE, A7CE, A7CE, A7CE, A7CE, A7CE, A7CE, A7CE, A7CE, A7CE, A7CE, A7CE, A00009CH, A00009CH, A12SO, A12SO, A12SO, A12SO, A12SO, A12SO, A12SO, A12SO, A-806, A-806, A-806, A44EU, A44EU, A44EU
On this site
Cessna 170 2,085 registered
Cessna 172 Skyhawk 20,675 registered
Cessna 175 Skylark 925 registered
Cessna 177 Cardinal 2,158 registered
Cessna 180 Skywagon 2,605 registered
Cessna 182 Skylane 11,832 registered
Cessna 185 Skywagon 227 registered
Cessna 190 74 registered
Cessna 195 437 registered
Cessna 206 Stationair 213 registered
Cessna 207 Skywagon 207 115 registered
Cessna 208 Caravan 1,019 registered
Cessna 210 Centurion 1,528 registered
Cessna 310 1,410 registered
Cessna 320 137 registered
Cessna 335 26 registered
Cessna 336 35 registered
Cessna 337 Skymaster 370 registered
Cessna 340 707 registered
Cessna 401 51 registered
Cessna 402 174 registered
Cessna 404 26 registered
Cessna 411 10 registered
Cessna 414 Chancellor 605 registered
Cessna 421 Golden Eagle 769 registered
Cessna 425 Conquest I 161 registered
Cessna 441 Conquest II 172 registered
Cessna 525 CitationJet (CJ series) 1,970 registered
Cessna A185 Skywagon 1,372 registered
Cessna M337 34 registered
Cessna P172 23 registered
Cessna P206 Super Skylane 163 registered
Cessna P210 Pressurized Centurion 443 registered
Cessna P337 33 registered
Cessna R172 Hawk XP 758 registered
Cessna R182 Skylane RG 706 registered
Cessna T-310 207 registered
Cessna T182 Turbo Skylane 935 registered
Cessna T206 Turbo Stationair 1,059 registered
Cessna T207 65 registered
Cessna T210 Turbo Centurion 1,283 registered
Cessna T303 59 registered
Cessna T337 193 registered
Cessna TP206 25 registered
Cessna TR182 Turbo Skylane RG 465 registered
Cessna TU206 344 registered
Cessna U206 Stationair 798 registered
Cirrus SR20 1,630 registered
Cirrus SR22 7,086 registered
Commander Aircraft Co 114 103 registered
Dehavilland DHC-1 105 registered
Dehavilland DHC-2 255 registered
Dehavilland DHC-6 114 registered
Rockwell International 112 207 registered
The FAA's record
On the FAA's site

What an approved modification is

A supplemental type certificate is the FAA's approval of a change to a certified design: a new engine or propeller, avionics, an autopilot, floats, a parachute, a larger fuel tank, an ice-protection kit. The company holding it may sell the kit and the paperwork to owners of the listed models; the modification then becomes part of that aircraft's record. The FAA's list says what was approved and for which models, not how many aircraft carry it.

Source: FAA supplemental type certificates (Dynamic Regulatory System). Register counts from the FAA register of October 21, 2026.