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

SA01240SE

Installation of secondary voltage indication system. Held by Visual Instruments LLC, which holds 7 approved modifications in all. Last revised January 1, 2025. System: other and general.

What it applies to

Kind of product
Aircraft
Design holder
Dynac Aerospace Corporation; Dynac Aerospace Corporation; Dynac Aerospace Corporation; Dynac Aerospace Corporation; Dynac Aerospace Corporation; National Aeronca Association; National Aeronca Association; National Aeronca Association; National Aeronca Association; National Aeronca Association; National Aeronca Association; National Aeronca Association; National Aeronca Association; National Aeronca Association; National Aeronca Association; National Aeronca Association; National Aeronca Association; National Aeronca Association; National Aeronca Association; Air Tractor Inc.; Air Tractor Inc.; Air Tractor Inc.; Air Tractor Inc.; Air Tractor Inc.; Air Tractor Inc.; Air Tractor Inc.; Air Tractor Inc.; Air Tractor Inc.; Air Tractor Inc.; Air Tractor Inc.; Air Tractor Inc.; Air Tractor Inc.; Air Tractor Inc.; Air Tractor Inc.; Allied Ag Cat Productions Inc.; Allied Ag Cat Productions Inc.; Allied Ag Cat Productions Inc.; Allied Ag Cat Productions Inc.; Allied Ag Cat Productions Inc.; Allied Ag Cat Productions Inc.; Allied Ag Cat Productions Inc.; Allied Ag Cat Productions Inc.; Allied Ag Cat Productions Inc.; American Champion Aircraft Corp.; American Champion Aircraft Corp.; American Champion Aircraft Corp.; American Champion Aircraft Corp.; American Champion Aircraft Corp.; American Champion Aircraft Corp.; American Champion Aircraft Corp.; American Champion Aircraft Corp.; American Champion Aircraft Corp.; American Champion Aircraft Corp.; American Champion Aircraft Corp.; American Champion Aircraft Corp.; American Champion Aircraft Corp.; American Champion Aircraft Corp.; American Champion Aircraft Corp.; American Champion Aircraft Corp.; American Champion Aircraft Corp.; American Champion Aircraft Corp.; American Champion Aircraft Corp.; American Champion Aircraft Corp.; American Champion Aircraft Corp.; American Champion Aircraft Corp.; American Champion Aircraft Corp.; American Champion Aircraft Corp.; American Champion Aircraft Corp.; American Champion Aircraft Corp.; American Champion Aircraft Corp.; Arctic Aircraft Company Inc.; Arctic Aircraft Company Inc.; Arctic Aircraft Company Inc.; Arctic Aircraft Company Inc.; Arctic Aircraft Company Inc.; Arctic Aircraft Company Inc.; Sky International Inc.; Sky International Inc.; Sky International Inc.; Quality Aerospace Inc.; Quality Aerospace Inc.; Quality Aerospace Inc.; Funk Aircraft Company; Textron Aviation Inc.; Textron Aviation Inc.; Textron Aviation Inc.; Textron Aviation Inc.; Textron Aviation Inc.; Textron Aviation Inc.; Textron Aviation Inc.; Textron Aviation Inc.; Textron Aviation Inc.; Textron Aviation Inc.; Textron Aviation Inc.; Textron Aviation Inc.; Textron Aviation Inc.; Textron Aviation Inc.; Textron Aviation Inc.; Textron Aviation Inc.; Textron Aviation Inc.; Textron Aviation Inc.; Textron Aviation Inc.; Textron Aviation Inc.; Textron Aviation Inc.; Textron Aviation Inc.; Textron Aviation Inc.; Textron Aviation Inc.; Textron Aviation Inc.; Textron Aviation Inc.; Textron Aviation Inc.; Textron Aviation Inc.; Textron Aviation Inc.; Textron Aviation Inc.; Textron Aviation Inc.; Textron Aviation Inc.; Textron Aviation Inc.; Textron Aviation Inc.; Textron Aviation Inc.; Textron Aviation Inc.; Textron Aviation Inc.; Textron Aviation Inc.; Textron Aviation Inc.; Textron Aviation Inc.; Textron Aviation Inc.; Textron Aviation Inc.; Textron Aviation Inc.; Textron Aviation Inc.; Textron Aviation Inc.; Textron Aviation Inc.; Textron Aviation Inc.; Textron Aviation Inc.; Textron Aviation Inc.; Textron Aviation Inc.; Textron Aviation Inc.; Textron Aviation Inc.; Textron Aviation Inc.; Textron Aviation Inc.; Textron Aviation Inc.; Textron Aviation Inc.; Textron Aviation Inc.; Textron Aviation Inc.; Textron Aviation Inc.; Textron Aviation Inc.; Textron Aviation Inc.; Textron Aviation Inc.; Textron Aviation Inc.; Textron Aviation Inc.; Textron Aviation Inc.; Textron Aviation Inc.; Textron Aviation Inc.; Textron Aviation Inc.; Textron Aviation Inc.; Textron Aviation Inc.; Textron Aviation Inc.; Textron Aviation Inc.; Textron Aviation Inc.; Textron Aviation Inc.; Textron Aviation Inc.; Textron Aviation Inc.; Textron Aviation Inc.; Textron Aviation Inc.; Textron Aviation Inc.; Textron Aviation Inc.; Textron Aviation Inc.; Textron Aviation Inc.; Textron Aviation Inc.; Textron Aviation Inc.; Textron Aviation Inc.; Textron Aviation Inc.; Textron Aviation Inc.
Models
Volaire 10, Volaire 10A, Aero Commander 100, Aero Commander 100-180, Aero Commander 100A, C-2 Scout, C-2 Standard, C-3, E-113CDB, E-223CD, 50-TC, 50-TL, 60-TF, 65-TAC (Army L-3E), 65-TAF (Army L-3D), 65-TAL, 65-TC (Army L-3J), 65-TF, 65-TL, AT-301, AT-302, AT-400, AT-400A, AT-401, AT-401A, AT-402, AT-401B, AT-402A, AT-402B, AT-503, AT-503A, AT-602, AT-802, AT-802A, G-164, G-164A, G-164B (with 73 inch wing gap), G-164B-15T, G-164B-34T, G-164B-20T, G-164C, G-164D, G-164D (with 73 inch wing gap), 7AC, 7ACA, S7AC, 7BCM (Army L-16A), 7CCM (Army L-16B), S7CCM, 7DC, S7DC, 7EC, S7EC, 7FC, 7GC,...
Type certificates
1A21, 1A21, 1A21, 1A21, 1A21, A-351, A-351, A-396, ATC 189, ATC 189, A-728, A-728, A-728, A-728, A-728, A-728, A-728, A-728, A-728, A9SW, A9SW, A9SW, A9SW, A17SW, A17SW, A17SW, A17SW, A17SW, A17SW, A17SW, A17SW, A19SW, A19SW, A19SW, 1A16, 1A16, 1A16, 1A16, 1A16, 1A16, 1A16, 1A16, 1A16, A-759, A-759, A-759, A-759, A-759, A-759, A-759, A-759, A-759, A-759, A-759, A-759, A-759, A-759, A-759, A-759, A-759, A-759, A-759, A-759, A-759, A-761, A-761, A-761, A-761, A21CE, A21CE, A-737, A-737, A-737, A-737, A-754, A-754, A22NM, A22NM, A22NM, A3SW, A3SW, A3SW, TC 2-564, A-757, A-765, A-765, A-765, A-765, A-765, A-765, A-765, A-765, A-765, A-765, A-765, A-765, A-765, A-765, A-765, A-765, A-765, A1CE, A1CE, A1CE, A1CE, A1CE, A1CE, A1CE, A1CE, A1CE, A1CE, A1CE, A1CE, 3A15, 3A15, 3A15, 3A15, 3A15, 3A15, 3A15, 3A15, 3A15, 3A15, 3A15, 3A15, 3A15, 3A15, 3A15, 3A15, 3A15, 3A15, 3A15, 3A15, 3A15, 3A15, 3A15, 3A15, 3A15, 3A15, 5A3, 5A3, 5A3, 5A4, 5A4, 5A4, 5A4, 5A4, 5A4, 5A4, 5A4, 5A4, A12CE, A12CE, A12CE, A29CE, A30CE, 3A16, 3A16, 3A16, 3A16, 3A16, 3A16, 3A16, 3A16, 3A16, 3A16, 3A16, 3A16, 3A16, 3A16
On this site
Aeronca 11 Chief 741 registered
Aeronca 50 14 registered
Aeronca 65 Chief and Super Chief 377 registered
Aeronca 7 Champion (Champ) 2,355 registered
Aeronca C-2 13 registered
Aeronca C-3 52 registered
Aeronca S11 9 registered
Aeronca S7 7 registered
Air Tractor Inc AT-301 84 registered
Air Tractor Inc AT-400 49 registered
Air Tractor Inc AT-401 68 registered
Air Tractor Inc AT-402 160 registered
Air Tractor Inc AT-602 245 registered
Air Tractor Inc AT-802 685 registered
Ayres Corporation S-2 244 registered
Beechcraft 35 Bonanza and Debonair 1,077 registered
Beechcraft 95 Travel Air and Baron 55 1,244 registered
Beechcraft A23 329 registered
Beechcraft A36 Bonanza 2,530 registered
Beechcraft B36 Bonanza 308 registered
Beechcraft E18 58 registered
Beechcraft TC-45 7 registered
Champion 7 Citabria and Champ 1,452 registered
Interstate S-1 104 registered
Schweizer Aircraft Corp G-164 64 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 20, 2026.