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

SA00344BO Page 2

Installation of Parmetheus Plus LED PAR36 and PAR46 taxi and landing lights. Held by Whelen Engineering CO INC, which holds 9 approved modifications in all. Last revised August 11, 2016. System: electrical power.

What it applies to

Kind of product
Aircraft
Design holder
Air Tractor Inc.; Air Tractor Inc.; Air Tractor Inc.; Air Tractor Inc.; Air Tractor Inc.; Air Tractor Inc.; Air Tractor Inc.; Aviat Aircraft Inc; Aviat Aircraft Inc; Aviat Aircraft Inc; Aviat Aircraft Inc; Aviat Aircraft Inc; British Aerospace Regional Aircraft; British Aerospace Regional Aircraft; Cessna Aircraft Company; Good Earthkeeping Organization Inc; Good Earthkeeping Organization Inc; Good Earthkeeping Organization Inc; Good Earthkeeping Organization Inc; Good Earthkeeping Organization Inc; Good Earthkeeping Organization Inc; Good Earthkeeping Organization Inc; Good Earthkeeping Organization 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.; 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.; Regal Air Inc.; Regal Air Inc.; Regal Air Inc.; Regal Air Inc.; Regal Air Inc.; Regal Air Inc.; Reims Aviation S.A.; REVO Incorporated; REVO Incorporated; REVO Incorporated; REVO Incorporated; REVO Incorporated; REVO Incorporated; REVO Incorporated; SOCATA - Groupe Aerospatiale; SOCATA; SOCATA; SOCATA; SOCATA; SOCATA; SOCATA; SOCATA; SOCATA; SOCATA; SOCATA; SOCATA; SOCATA; SOCATA; SOCATA; SOCATA; SOCATA; SOCATA; SOCATA; SOCATA; STOL Aviation LLC; STOL Aviation LLC; STOL Aviation LLC; STOL Aviation LLC; STOL Aviation LLC; STOL Aviation LLC; Swift Museum Foundation Inc.; Swift Museum Foundation Inc.; Taylorcraft 2000 LLC; Taylorcraft 2000LLC; Taylorcraft 2000 LLC; Taylorcraft 2000 LLC; Taylorcraft 2000 LLC; Taylorcraft 2000 LLC; Taylorcraft 2000 LLC; Taylorcraft 2000 LLC; Taylorcraft 2000 LLC; Taylorcraft 2000 LLC; Taylorcraft 2000 LLC; Taylorcraft 2000 LLC; Taylorcraft 2000 LLC; Taylorcraft 2000 LLC; Taylorcraft 2000 LLC; Taylorcraft 2000 LLC; Taylorcraft 2000 LLC; Taylorcraft 2000 LLC; Taylorcraft 2000 LLC; Taylorcraft 2000 LLC; Taylorcraft 2000 LLC; Taylorcraft 2000 LLC; Thrush Aircraft Inc.; Thrush Aircraft Inc.; Thrush Aircraft Inc.; Thrush Aircraft Inc.; Thrush Aircraft Inc.; Thrush Aircraft Inc.; Thrush Aircraft Inc.; Thrush Aircraft Inc.; Thrush Aircraft Inc.; Thrush Aircraft Inc.; Thrush Aircraft Inc.; Thrush Aircraft Inc.; Thrush Aircraft Inc.; Thrush Aircraft Inc.; Thrush Aircraft Inc.; Thrush Aircraft Inc.; Thrush Aircraft Inc.; Thrush Aircraft Inc.; Thrush Aircraft Inc.; Thrush Aircraft Inc.; Thrush Aircraft Inc.; Thrush Aircraft Inc.; Thrush Aircraft Inc.; Thrush Aircraft Inc.; Thrush Aircraft Inc.; Thrush Aircraft Inc.; Thrush Aircraft Inc.; Thrush Aircraft Inc.; 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; 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; 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.
Models
AT-401B, AT-402A, AT-402B, AT-502B, AT-602, AT-802, AT-802A, A-1, A-1A, A-1B, A-1C-180, A-1C-200, Jetstream 3201, Jetstream Series 3101, 441, 8, 8A, 8B, 8C, 8D, 8E, 8F, T-8F, PA-17, PA-18-105 (Special), PA-18-125 (Army L-21A), PA-18-135, PA-18-150, PA-18, PA-18A-135 (Restricted), PA-18A-135, PA-18A-150 (Restricted), PA-18A-150, PA-18A (Restricted), 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,...
Type certificates
A17SW, A17SW, A17SW, A17SW, A19SW, A19SW, A19SW, A22NM, A22NM, A22NM, A22NM, A22NM, A56EU, A21EU, A28CE, A-694, A-694, A-694, A-694, A-694, A-694, A-694, A-694, A-805, 1A2, 1A2, 1A2, 1A2, 1A2, AR-7, 1A2, AR-7, 1A2, AR-7, 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, 1A10, 1A10, 1A10, 1A10, 1A15, 1A15, 1A15, 1A15, 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, A10SO, A9SO, A10SO, A9SO, A10SO, A9SO, A18SO, A1EA, A1EA, A19SO, A19SO, A25SO, A25SO, A25SO, A25SO, 1A10, 5A5, 3A14, 5A5, 5A5, 3A14, 5A5, A54EU, 1A13, 1A13, 1A13, 1A13, 1A13, 1A13, 1A13, A17SO, 7A14, 7A14, 7A14, 7A14, 7A14, 7A14, 7A14, 7A14, 7A14, 7A14, 7A14, 7A14, 7A14, A51EU, A51EU, A51EU, A51EU, A51EU, A60EU, A-737, A-737, A-737, A-737, A-754, A-754, A-766, A-766, 1A9, A-696, A-696, A-696, A-696, A-696, A-696, A-696, A-696, A-696, A-696, A-696, A-696, A-696, 1A9, 1A9, 1A9, 1A9, 1A9, 1A9, 1A9, 1A9, 2A7, A3SW, A4SW, 2A7, 2A7, A3SW, A4SW, 2A9, A4SW, A4SW, A4SW, A4SW, A3SW, A4SW, A4SW, A3SW, A4SW, A3SW, A4SW, A3SW, A4SW, A3SW, A4SW, A4SW, A4SW, A4SW, A4SW, A4SW, 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, A12SW, 2A4, A-767, A-767, A-767, A-767, A-767, A-806, A-806, A-806, A-815, A9EA, A9EA, A9EA, A9EA, A9EA, A31EU, A31EU, A31EU, A31EU, A31EU, A31EU, A31EU, A31EU, A31EU
On this site
Aero Commander 680 51 registered
Air Tractor Inc AT-401 68 registered
Air Tractor Inc AT-402 160 registered
Air Tractor Inc AT-502 502 registered
Air Tractor Inc AT-602 246 registered
Air Tractor Inc AT-802 684 registered
Aviat Aircraft Inc A-1 Husky 896 registered
Ayres Corporation S-2 244 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-2 254 registered
Dehavilland DHC-6 115 registered
Interstate S-1 104 registered
Partenavia S.P.A. P 68 16 registered
Piper PA-17 Vagabond 96 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-23 Apache and Aztec 1,316 registered
Piper PA-24 Comanche 2,428 registered
Piper PA-28 Cherokee, Warrior, Archer and Arrow 18,633 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-36 Pawnee Brave 99 registered
Piper PA-38 Tomahawk 442 registered
Piper PA-39 Twin Comanche C/R 82 registered
Piper PA-44 Seminole 599 registered
Piper PA-46 Malibu, Mirage, Matrix and M-Class 1,692 registered
S.O.C.A.T.A. MS894 27 registered
S.O.C.A.T.A. RALLYE 150 10 registered
S.O.C.A.T.A. RALLYE 235 16 registered
Snow 600 7 registered
Taylorcraft BC-65 109 registered
Taylorcraft BC12 BC-12D 1,225 registered
Taylorcraft BCS12 17 registered
Thrush Aircraft Inc S-2 102 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 7, 2026.