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

SA01933LA-D Page 2

Installation of Garmin Model 400W / 500W Series GPS-WAAS Navigation System. Held by Garmin International INC, which holds 88 approved modifications in all. Last revised November 20, 2014. System: instruments and avionics.

What it applies to

Kind of product
Aircraft
Design holder
Aviat Aircraft Inc; Aviat Aircraft Inc; Aviat Aircraft Inc; Aviat Aircraft Inc; Aviat Aircraft Inc; Aviat Aircraft Inc; Aviat Aircraft Inc; Aviat Aircraft Inc; Aviat Aircraft Inc; Aviat Aircraft Inc; The Boeing Company; The Boeing Company; The Boeing Company; The Boeing Company; The Boeing Company; The Boeing Company; The Boeing Company; The Boeing Company; The Boeing Company; The Boeing Company; JGS Properties LLC; JGS Properties LLC; The King's Engineering Fellowship; Piper Aircraft Inc.; Piper Aircraft Inc.; Piper Aircraft Inc.; Piper Aircraft Inc.; Piper Aircraft Inc.; Piper Aircraft Inc.; Piper Aircraft Inc.; Piper Aircraft Inc.; Piper Aircraft Inc.; Piper Aircraft Inc.; Piper Aircraft Inc.; Piper Aircraft Inc.; Piper Aircraft Inc.; Piper Aircraft Inc.; Piper Aircraft Inc.; Piper Aircraft Inc.; Piper Aircraft Inc.; Piper Aircraft Inc.; Piper Aircraft Inc.; Piper Aircraft Inc.; Piper Aircraft Inc.; Piper Aircraft Inc.; Piper Aircraft Inc.; Piper Aircraft Inc.; Piper Aircraft Inc.; Piper Aircraft Inc.; Piper Aircraft Inc.; Piper Aircraft Inc.; Piper Aircraft Inc.; Piper Aircraft Inc.; Piper Aircraft Inc.; Piper Aircraft Inc.; Piper Aircraft Inc.; Piper Aircraft Inc.; Piper Aircraft Inc.; Piper Aircraft Inc.; Piper Aircraft Inc.; Piper Aircraft Inc.; Piper Aircraft Inc.; Piper Aircraft Inc.; Piper Aircraft Inc.; Piper Aircraft Inc.; Piper Aircraft Inc.; Piper Aircraft Inc.; Piper Aircraft Inc.; Piper Aircraft Inc.; Piper Aircraft Inc.; Piper Aircraft Inc.; Piper Aircraft Inc.; Piper Aircraft Inc.; Piper Aircraft Inc.; Piper Aircraft Inc.; Piper Aircraft Inc.; Piper Aircraft Inc.; Piper Aircraft Inc.; Piper Aircraft Inc.; Piper Aircraft Inc.; Piper Aircraft Inc.; Piper Aircraft Inc.; Piper Aircraft Inc.; Piper Aircraft Inc.; Piper Aircraft Inc.; Piper Aircraft Inc.; Piper Aircraft Inc.; Piper Aircraft Inc.; Piper Aircraft Inc.; Piper Aircraft Inc.; Piper Aircraft Inc.; Piper Aircraft Inc.; Piper Aircraft Inc.; Piper Aircraft Inc.; Piper Aircraft Inc.; Piper Aircraft Inc.; Piper Aircraft Inc.; Piper Aircraft Inc.; Piper Aircraft Inc.; Piper Aircraft Inc.; Piper Aircraft Inc.; Piper Aircraft Inc.; Piper Aircraft Inc.; Piper Aircraft Inc.; Piper Aircraft Inc.; Piper Aircraft Inc.; Piper Aircraft Inc.; Piper Aircraft Inc.; Piper Aircraft Inc.; Piper Aircraft Inc.; Piper Aircraft Inc.; Polskie Zaklady Lotnieze Spolka zo.o; REVO Incorporated; REVO Incorporated; REVO Incorporated; REVO Incorporated; REVO Incorporated; REVO Incorporated; REVO Incorporated; Short Brothers PLC; Short Brothers PLC; Slingsby Aviation Ltd.; Slingsby Aviation Ltd.; SOCATA - Groupe Aerospatiale; SOCATA; SOCATA; SOCATA; SOCATA; SOCATA; SOCATA; Symphony Aircraft Industries Inc; Triton Aerospace LLC; True Flight Holdings LLC; True Flight Holdings LLC; True Flight Holdings LLC; True Flight Holdings LLC; True Flight Holdings LLC; True Flight Holdings LLC; True Flight Holdings LLC; True Flight Holdings LLC; Twin Commander Aircraft LLC; Twin Commander Aircraft LLC; Twin Commander Aircraft LLC; Twin Commander Aircraft LLC; Twin Commander Aircraft LLC; Twin Commander Aircraft LLC; Twin Commander Aircraft LLC; Twin Commander Aircraft LLC; Twin Commander Aircraft LLC; Twin Commander Aircraft LLC; Twin Commander Aircraft LLC; Twin Commander Aircraft LLC; Twin Commander Aircraft LLC; Twin Commander Aircraft LLC; Twin Commander Aircraft LLC; Twin Commander Aircraft LLC; Twin Commander Aircraft LLC; Twin Commander Aircraft LLC; Twin Commander Aircraft LLC; Twin Commander Aircraft LLC; Twin Commander Aircraft LLC; Twin Commander Aircraft LLC; Twin Commander Aircraft LLC; Twin Commander Aircraft LLC; Twin Commander Aircraft LLC; Twin Commander Aircraft LLC; Twin Commander Aircraft LLC; Twin Commander Aircraft LLC; Twin Commander Aircraft LLC; Twin Commander Aircraft LLC; Twin Commander Aircraft LLC; Univair Aircraft Corporation; Univair Aircraft Corporation; Univair Aircraft Corporation; Univair Aircraft Corporation; Univair Aircraft Corporation; Viking Air Limited; Viking Air Limited; Viking Air Limited; Viking Air Limited; Viking Air Limited; Vulcanair S.p.A.; Vulcanair S.p.A.; Vulcanair S.p.A.; Vulcanair S.p.A.; Vulcanair S.p.A.; Vulcanair S.p.A.; Vulcanair S.p.A.; Vulcanair S.p.A.; Vulcanair S.p.A.; The Waco Aircraft Company; WSK PZL Mielec and OBR SK Mielec; Zenair Ltd.
Models
A-1, A-1A, A-1B, S-1S, S-1T, S-2, S-2A, S-2B, S-2C, S-2S, AT-6 (SNJ-2), AT-6A (SNJ-3), AT-6B, AT-6C (SNJ-4), AT-6D (SNJ-5), AT-6F (SNJ-6), BC-1A, NA-260, SNJ-7, T-6G, 11A, 11E, 44, PA-18-105 (Special), PA-18-125 (Army L-21A), PA-18-135, PA-18-150, PA-18, PA-18A-135, PA-18A-150, PA-18A, PA-18AS-125, PA-18AS-135, PA-18AS-150, PA-18S-105 (Special), PA-18S-125, PA-18S-135, PA-18S-150, PA-18S, PA-19 (Army L-18C), PA-19S, PA-20-115, PA-20-135, PA-20, PA-20S-115, PA-20S-135, PA-20S, PA-22-108, PA-22-135, PA-22-150, PA-22-160, PA-22, PA-22S-135, PA-22S-150, PA-22S-160, PA-28-140, PA-28-150,...
Type certificates
A22NM, A22NM, A22NM, A8SO, A8SO, A8SO, A8SO, A8SO, A8SO, A8SO, A-2-575, A-2-575, A-2-575, A-2-575, A-2-575, A-2-575, A-2-575, 1A18, A-2-575, A-2-575, A-804, A-804, A2WI, 1A2, 1A2, 1A2, 1A2, 1A2, 1A2, 1A2, 1A2, 1A2, 1A2, 1A2, 1A2, 1A2, 1A2, 1A2, 1A2, 1A2, 1A2, 1A4, 1A4, 1A4, 1A4, 1A4, 1A4, 1A6, 1A6, 1A6, 1A6, 1A6, 1A6, 1A6, 1A6, 2A13, 2A13, 2A13, 2A13, 2A13, 2A13, 2A13, 2A13, 2A13, 2A13, 2A13, 2A13, 2A13, 2A13, 2A13, 2A13, 2A13, 2A13, A1EA, A20SO, A20SO, A20SO, A20SO, A8EA, A8EA, A8EA, A8EA, A8EA, A8EA, A3SO, A3SO, A3SO, A3SO, A3SO, A3SO, A3SO, A3SO, A3SO, A3SO, A3SO, A3SO, A3SO, A7SO, A7SO, A7SO, A1EA, A1EA, A23SO, A23SO, A32SO, A23SO, A19SO, A19SO, A25SO, A25SO, A25SO, A44CE, 1A13, 1A13, 1A13, 1A13, 1A13, 1A13, 1A13, A15EU, A15EU, A73EU, A73EU, A17SO, A51EU, A51EU, A51EU, A51EU, A51EU, A60EU, A46CE, A00009DE, A11EA, A11EA, A11EA, A11EA, A16EA, A16EA, A16EA, A16EA, 6A1, 6A1, 6A1, 6A1, 6A1, 6A1, 6A1, 6A1, 2A4, 6A1, 2A4, 2A4, 2A4, 2A4, 2A4, 2A4, 2A4, 2A4, 2A4, 2A4, 2A4, 2A4, 2A4, 2A4, 2A4, 2A4, 2A4, 2A4, 2A4, A12SW, 2A4, A-767, A-767, A-767, A-767, A-767, A-815, A9EA, A9EA, A9EA, A9EA, A31EU, A31EU, A31EU, A31EU, A31EU, A31EU, A31EU, A31EU, A31EU, ATC 542, A68EU, TA5CH
On this site
Adam Aircraft Industries Inc A500 5 registered
Aero Commander 680 51 registered
Aviat Aircraft Inc A-1 Husky 896 registered
Aviat Aircraft Inc S-2 57 registered
Consolidated Aeronautics Inc. LAKE LA-4 15 registered
Consolidated Aeronautics Inc. LAKE LA-4-200 140 registered
Daher (Socata) TB 10 53 registered
Daher (Socata) TB-20 200 registered
Daher (Socata) TB200 11 registered
Daher (Socata) TB21 57 registered
Daher (Socata) TBM-700 TBM 700 through TBM 960 1,006 registered
Dehavilland DHC-6 115 registered
North American AT-6 Texan 228 registered
Omf OMF-100 25 registered
Partenavia S.P.A. P 68 16 registered
Piper PA-18 Super Cub 3,621 registered
Piper PA-19 15 registered
Piper PA-20 Pacer 323 registered
Piper PA-22 Tri-Pacer and Colt 2,940 registered
Piper PA-28 Cherokee, Warrior, Archer and Arrow 18,619 registered
Piper PA-30 Twin Comanche 879 registered
Piper PA-31 Navajo and Chieftain 935 registered
Piper PA-32 Cherokee Six, Lance and Saratoga 3,917 registered
Piper PA-34 Seneca 998 registered
Piper PA-39 Twin Comanche C/R 82 registered
Piper PA-42 59 registered
Piper PA-44 Seminole 599 registered
Piper PA-46 Malibu, Mirage, Matrix and M-Class 1,692 registered
Slingsby T67 15 registered
Vulcanair Spa P68 10 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 5, 2026.