2005-01-19: Mode S transponders
FAA order 2005-01-19 is an airworthiness directive in force since February 23, 2005. The FAA's subject line: Mode S transponders. It names Aero Commander 680, Agusta Spa F.260D, Beechcraft 1900 Airliner, Beechcraft 300 King Air 300, Beechcraft 35 Bonanza and Debonair, Beechcraft 58 Baron, Beechcraft 65, Beechcraft 95 Travel Air and Baron 55, Beechcraft A100, Beechcraft A200, Beechcraft A23, Beechcraft A36 Bonanza, Beechcraft A65, Beechcraft B100, Beechcraft B200 King Air B200, Beechcraft B300 King Air 350, Beechcraft B36 Bonanza, Beechcraft E18, Beechcraft TC-45, Beechcraft UC-45, Bellanca 14, Bellanca 17 Viking, Britten-Norman BN-2, Cessna 172 Skyhawk, Cessna 177 Cardinal, Cessna 210 Centurion, Cessna A185 Skywagon, Cessna M337, Cessna P172, Cessna P206 Super Skylane, Cessna P210 Pressurized Centurion, Cessna P337, Cessna R172 Hawk XP, Cessna R182 Skylane RG, Cessna T-310, Cessna T182 Turbo Skylane, Cessna T206 Turbo Stationair, Cessna T207, Cessna T210 Turbo Centurion, Cessna T337, Cessna TP206, Cessna TR182 Turbo Skylane RG, Cessna TU206, Cirrus SR20, Cirrus SR22, Commander Aircraft Co 114, Consolidated Aeronautics Inc. LAKE LA-4, Consolidated Aeronautics Inc. LAKE LA-4-200, Daher (Socata) TB 10, Daher (Socata) TB-20, Daher (Socata) TB200, Daher (Socata) TB21, Daher (Socata) TBM-700 TBM 700 through TBM 960, Dehavilland DHC-2, Dehavilland DHC-6, Diamond Aircraft DA 40 Diamond Star, Diamond Aircraft DA20 Katana and Eclipse, Dornier Luftfahrt Gmbh 328, Downer 14, Eads Pzl Warszawa-Okecie Sa PZL-104, Embraer EMB-110, Estumkeda Ltd Dba Micco Acft MAC-145, Extra Flugzeugbau Gmbh EA-300, Extra Flugzeugbau Gmbh EA-400, Extra Flugzeugbau EA 300, Fairchild SA227, Grob Aircraft Ag G120, Helio Aircraft Ltd H800, Helio H-250, Helio H-295, Helio H-391, Helio H-395, Helio HT-295, Lancair Company LC-40, Maule M-4, Maule M-5, Maule M-6, Maule M-7, Maule MT-7, Maule MX-7, Maule MXT-7, Meyers MAC-145, Mitsubishi MU-2, Moravan Z143, Moravan Z242, Navion NAVION D, Navion NAVION F, Navion NAVION G, Navion NAVION H, North American AT-6 Texan, Omf OMF-100, Partenavia S.P.A. P 68, Pilatus Britten-Norman Ltd. BN-2, Pilatus PC-12, Pilatus PC-6, Piper PA-12 Super Cruiser, Piper PA-18 Super Cub, Piper PA-19, Piper PA-20 Pacer, Piper PA-22 Tri-Pacer and Colt, Piper PA-23 Apache and Aztec, Piper PA-24 Comanche, Piper PA-28 Cherokee, Warrior, Archer and Arrow, Piper PA-30 Twin Comanche, Piper PA-31 Navajo and Chieftain, Piper PA-32 Cherokee Six, Lance and Saratoga, Piper PA-34 Seneca, Piper PA-39 Twin Comanche C/R, Piper PA-42, Piper PA-44 Seminole, Piper PA-46 Malibu, Mirage, Matrix and M-Class, Piper PA-60 Aerostar, Rockwell International 112, S.O.C.A.T.A. MS894, S.O.C.A.T.A. RALLYE 150, S.O.C.A.T.A. RALLYE 235, Siai-Marchetti F.260, Siai-Marchetti F.260C, Siai-Marchetti S.205/22R, Slingsby T67, Swearingen SA-26, Swearingen SA227, Vulcanair Spa P68, Wsk-Pzl Warzawa-Okecie PZL-104: about 98,505 aircraft on the U.S. register today across them, though an order usually covers particular versions or serial numbers rather than every one. System: instruments and avionics.
What it applies to as the FAA lists it
- Kind of product
- Appliance
- Makes
- GARMIN International Inc.; 328 Support Services GmbH; Aermacchi S.p.A.; Aeronautica Macchi S.p.A.; Aeronautica Macchi S.p.A. & Aerfer-Industrie Aerospaziali Meridionali S.p.A.; Aerostar Aircraft Corporation; B-N Group Ltd.; Bellanca Aircraft Corporation; The Boeing Company; Cessna Aircraft Company; Cirrus Design Corporation; Diamond Aircraft Industries GmbH; Diamond Aircraft Industries Inc; Dynac Aerospace Corporation; EADS-PZL Warszawa-Okecie S.A.; Embraer S.A.; Extra Flugzeugproduktions- und Vertriebs- GmbH; FS 2003 Corp.; Grob-Werke; Helio Aircraft Corporation; Helio Aircraft LLC; Interceptor Aircraft Corporation; Learjet Inc.; Lockheed Aircraft Corporation; M7 Aerospace LLC; MICCO Aircraft Company; Mooney Aircraft Corporation; Mooney Aviation Company Inc; Piaggio Aero Industries S.p.A.; Pilatus Aircraft Limited; Polskie Zaklady Lotnieze Spolka zo.o; PZL Mielec; Short Brothers PLC; Slingsby Aviation Ltd.; SOCATA; SOCATA - Groupe Aerospatiale; Symphony Aircraft Industries Inc; True Flight Holdings LLC; Twin Commander Aircraft LLC; Univair Aircraft Corporation; Viking Air Limited; Vulcanair S.p.A.; Zenair Ltd.; Zlin Aircraft a.s.; Alexandria Aircraft LLC; Textron Aviation Inc.; JGS Properties LLC; Maule Aerospace Technology Inc.; Mitsubishi Heavy Industries Ltd.; Piper Aircraft Inc.; Revo Incorporated; Sierra Hotel Aero Inc.
- Models
- GTX 330D, GTX 330, GTX 33D, GTX 33, 328-100, F.260, F.260B, F.260C, F.260D, F.260E, F.260F, S.205 - 18/F, S.205 - 18/R, S.205 - 20/R, S.205 - 22/R, S.208, S.208A, S.211A, AM-3, AL 60, AL 60-B, AL 60-C5, AL 60-F5, 360, 400, PA-60-600 (Aerostar 600), PA-60-601 (Aerostar 601), PA-60-601P (Aerostar 601P), PA-60-602P (Aerostar 602P), PA-60-700P (Aerostar 700P), 14-19, 14-19-2, 14-19-3, 14-19-3A, 17-30, 17-30A, 17-31, 17-31A, 17-31ATC, 17-31TC, BN-2, BN-2A, BN-2A-2, BN-2A-20, BN-2A-21, BN-2A-26, BN-2A-27, BN-2A-3, BN-2A-6, BN-2A-8, BN-2B-20, BN-2B-21, BN-2B-26, BN-2B-27, BN-2T, BN-2T-4R, BN2A...
- On this site
- Aero Commander 680 51 registered
Agusta Spa F.260D 11 registered
Beechcraft 1900 Airliner 157 registered
Beechcraft 300 King Air 300 132 registered
Beechcraft 35 Bonanza and Debonair 1,077 registered
Beechcraft 58 Baron 1,295 registered
Beechcraft 65 201 registered
Beechcraft 95 Travel Air and Baron 55 1,245 registered
Beechcraft A100 15 registered
Beechcraft A200 34 registered
Beechcraft A23 329 registered
Beechcraft A36 Bonanza 2,530 registered
Beechcraft A65 7 registered
Beechcraft B100 59 registered
Beechcraft B200 King Air B200 718 registered
Beechcraft B300 King Air 350 784 registered
Beechcraft B36 Bonanza 308 registered
Beechcraft E18 58 registered
Beechcraft TC-45 7 registered
Beechcraft UC-45 9 registered
Bellanca 14 282 registered
Bellanca 17 Viking 628 registered
Britten-Norman BN-2 54 registered
Cessna 172 Skyhawk 20,669 registered
Cessna 177 Cardinal 2,158 registered
Cessna 210 Centurion 1,526 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 936 registered
Cessna T206 Turbo Stationair 1,058 registered
Cessna T207 65 registered
Cessna T210 Turbo Centurion 1,285 registered
Cessna T337 193 registered
Cessna TP206 25 registered
Cessna TR182 Turbo Skylane RG 465 registered
Cessna TU206 343 registered
Cirrus SR20 1,629 registered
Cirrus SR22 7,058 registered
Commander Aircraft Co 114 103 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
Diamond Aircraft DA 40 Diamond Star 1,018 registered
Diamond Aircraft DA20 Katana and Eclipse 364 registered
Dornier Luftfahrt Gmbh 328 20 registered
Downer 14 7 registered
Eads Pzl Warszawa-Okecie Sa PZL-104 7 registered
Embraer EMB-110 13 registered
Estumkeda Ltd Dba Micco Acft MAC-145 15 registered
Extra Flugzeugbau Gmbh EA-300 156 registered
Extra Flugzeugbau Gmbh EA-400 10 registered
Extra Flugzeugbau EA 300 13 registered
Fairchild SA227 87 registered
Grob Aircraft Ag G120 9 registered
Helio Aircraft Ltd H800 6 registered
Helio H-250 11 registered
Helio H-295 54 registered
Helio H-391 16 registered
Helio H-395 17 registered
Helio HT-295 13 registered
Lancair Company LC-40 64 registered
Maule M-4 207 registered
Maule M-5 364 registered
Maule M-6 81 registered
Maule M-7 275 registered
Maule MT-7 76 registered
Maule MX-7 192 registered
Maule MXT-7 134 registered
Meyers MAC-145 14 registered
Mitsubishi MU-2 177 registered
Moravan Z143 5 registered
Moravan Z242 19 registered
Navion NAVION D 5 registered
Navion NAVION F 6 registered
Navion NAVION G 61 registered
Navion NAVION H 36 registered
North American AT-6 Texan 228 registered
Omf OMF-100 25 registered
Partenavia S.P.A. P 68 16 registered
Pilatus Britten-Norman Ltd. BN-2 13 registered
Pilatus PC-12 1,441 registered
Pilatus PC-6 22 registered
Piper PA-12 Super Cruiser 1,247 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 2,427 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
Piper PA-60 Aerostar 57 registered
Rockwell International 112 207 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
Siai-Marchetti F.260 7 registered
Siai-Marchetti F.260C 17 registered
Siai-Marchetti S.205/22R 22 registered
Slingsby T67 15 registered
Swearingen SA-26 9 registered
Swearingen SA227 32 registered
Vulcanair Spa P68 10 registered
Wsk-Pzl Warzawa-Okecie PZL-104 16 registered
Dates and paperwork
- In force since
- February 23, 2005
- Published
- January 19, 2005 (signed January 7, 2005)
- Docket
- FAA-2004-18743
- Replaces
- 2004-10-15
- Status
- Current
- The FAA's document
- Read the order on the FAA's site
The FAA's summary their words, unchanged
The FAA is adopting a new airworthiness directive (AD) to supersede Airworthiness Directive 2004-10-15, which applies to certain GTX 330 and GTX 330D Mode S transponders that are installed on airplanes. AD 2004-10-15 currently requires you to install GTX 330/330D Software Upgrade Version 3.03, 3.04, or 3.05. This AD applies to certain GTX 33, GTX 33D, GTX 330, and GTX 330D Mode S transponders that are installed on airplanes and is the result of observations that the GTX 33/33D/330/330D may detect, from other airplanes, the S1 (suppression) interrogating pulse below the minimum trigger level (MTL) and, in some circumstances, not reply. The GTX 33/33D/330/330D should still reply even if it detects S1 interrogating pulses below the MTL. Consequently, this AD would require you to install a GTX 33/33D/330/ 330D Software Upgrade to at least Version 3.06. No additional action is necessary for those airplanes that have transponders Software Upgrade 3.03 installed. Software Upgrade Versions 3.03 and 3.06 correct a TAS, TCAD, and TCAS I system "whisper-shout" problem that could potentially lead to the aircraft not being visible at certain ranges. TCAS II systems are not affected. We are issuing this AD to prevent interrogating aircraft from possibly receiving inaccurate replies due to suppression from aircraft equipped with the GTX 33/33D/330/330D Mode S transponders when the pulses are below the MTL. The inaccurate replies could result in reduced vertical separation.
The order itself the regulatory text, as published
Show the full text (15,280 characters)
Related safety bulletins advice on the same designs, not orders
Source: FAA Dynamic Regulatory System, airworthiness directives. The FAA's document is the authority; the register counts are this site's, from the FAA register of October 5, 2026. Connections as data: /graph/directive/2005-01-19.json · aircraft systems.
