Airworthiness Directive - AD/RAD/81 Amdt 1 - CASA

CESSNA A185F AMPHIBIAN · Airworthiness Directives

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Overview

This document is an Airworthiness Directive (AD) issued by the Civil Aviation Safety Authority (CASA) of Australia. It specifically addresses issues related to Garmin Mode S transponders, which may be installed on various aircraft, including the Diamond DA20. The directive outlines necessary actions to correct unsafe conditions associated with these transponders, particularly focusing on software upgrades to ensure proper functionality and compliance with safety standards. The AD is crucial for maintaining the airworthiness of aircraft equipped with the affected transponders, ensuring pilots and operators are informed of compliance requirements and deadlines.

Affected transponders include Garmin GTX 33, GTX 33D, GTX 330, and GTX 330D.
Software versions 3.00, 3.01, 3.02, 3.04, or 3.05 require an upgrade to version 3.06.
Transponders with software version 3.03 do not need further action.
Compliance deadline is September 30, 2005.
The directive aims to prevent inaccurate transponder replies that could compromise safety.

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Originally published by services.casa.gov.au. Sprinkle hosts a reference copy with an added summary, specifications and searchable full text.

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Document details

Type: Airworthiness Directives
Year: 2005
Pages: 8
File size: 75 KB
Publisher: services.casa.gov.au

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In this document

Applicability

The AD applies to Garmin GTX 33, GTX 33D, GTX 330, and GTX 330D Mode S transponders. These transponders may be installed on various aircraft, including the Diamond DA20.

Requirement

Transponders with software versions 3.00, 3.01, 3.02, 3.04, or 3.05 must be upgraded to at least version 3.06 as per Garmin Mandatory Software Service Bulletin No. 0409 dated July 19, 2004. Transponders with version 3.03 already installed do not require further action.

Compliance

Operators must complete the required software upgrades before September 30, 2005. This compliance date is critical to ensure the continued airworthiness of the aircraft.

Background

The directive was issued due to concerns that certain software versions of the GTX 330 and GTX 330D transponders may not respond correctly to interrogation pulses from other aircraft, potentially leading to unsafe flight conditions. The AD aims to prevent inaccurate replies that could result in reduced vertical separation or unsafe TCAS advisories.

Safety notes

Failure to comply with the AD may result in unsafe flight conditions due to transponder malfunction.

Full document text

COMMONWEALTH OF AUSTRALIA (Civil Aviation Safety Regulations 1998), PART 39 - 107 CIVIL AVIATION SAFETY AUTHORITY SCHEDULE OF AIRWORTHINESS DIRECTIVES Page 1 of 8 AIRWORTHINESS DIRECTIVE For the reasons set out in the background section, the CASA delegate whose signature appears below revokes Airworthiness Directive (AD) AD/RAD/81 and issues the following AD under subregulation 39.001 (1) of CASR 1998. The AD requires that the action set out in the requirement section (being action that the delegate considers necessary to correct the unsafe condition) be taken in relation to the aircraft or aeronautical product mentioned in the applicability section: (a) in the circumstances mentioned in the requirement section; and (b) in accordance with the instructions set out in the requirement section; and (c) at the time mentioned in the compliance section. Radio Communication and Navigation Equipment AD/RAD/81 Amdt 1 Garmin Mode S Transponders 4/2005 Applicability: Garmin International Inc. GTX 33, GTX 33D, GTX 330 and GTX 330D Mode S transponders. Note 1: These transponders may be installed on, but not limited to, the following aeroplanes: Manufacturer Model Aermacchi S.p.A S.205-18/F, S.205-18/R, S.205-20/R, S.205-22/R, S.208, S.208A, F.260, F.260B, F.260C, F.260D, F.260E, F.260F, S.211A. Aeronautica Macchi S.p.A AL 60, AL 60-B, AL 60-F5, AL 60-C5, AM-3. Aerostar Aircraft Corporation 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), 360, 400. Alexandria Aircraft, LLC 14-19, 14-19-2, 14-19-3, 14-19-3A, 17-30, 17-31, 17- 31TC, 17-30A, 17-31A, 17-31ATC. Alliance Aircraft Group LLC 15A, 20, H-250, H-295 (USAF U-10D), HT-295, H391 (USAF YL-24), H391B, H-395 (USAF L-28A or U-10B), H-395A, H-700, H-800, HST-550, HST-550A (USAF AU-24A), 500. American Champion Aircraft Corp 402, 7GCA, 7GCB, 7KC, 7GCBA, 7GCAA, 7GCBC, 7KCAB, 8KCAB, 8GCBC. Sky International Inc A-1, A-1A, A-1B, S-1S, S-1T, S-2, S-2A, S-2S, S-2C. COMMONWEALTH OF AUSTRALIA (Civil Aviation Safety Regulations 1998), PART 39 - 107 CIVIL AVIATION SAFETY AUTHORITY SCHEDULE OF AIRWORTHINESS DIRECTIVES Radio Communication and Navigation Equipment AD/RAD/81 Amdt 1 (continued) Page 2 of 8 B-N Group Ltd BN-2, BN-2A, BN-2A-2, BN-2A-3, BN-2A-6, BN-2A- 8, BN-2A-20, BN-2A-21, BN-2A-26, BN-2A-27, BN- 2B-20, BN-2B-21, BN-2A-26, BN-2A-27, BN-2B-20, BN-2B-21, BN-2B-26, BN-2B-27, BN-2T, BN-2T-4R, BN-2A MK.III, BN2A MK.III-2, BN2A MK.111-3. Bellanca 14-13, 14-13-2. 14-13-3. 14-13-3W. Bombardier Inc (Otter) DHC-3, DHC-6-1, DHC-6-100, DHC-6-200, DHC-6-300. Cessna Aircraft Company 170, 170A, 170B, 172, 172A, 172B, 172C, 172D, 172E, 172F (USAF T-41A), 172G, 172H, (USAF T041A), 172I, 172K, 172L, 172M, 172N, 172P, 172Q, 172R, 172S, 172RG, P172D, R172E (USAF T-41 B) (USAF T-41 C AND D), R172F (USAF T-41 D), R175G, R172H (USAF T-41 D), R172J, R172K, 175, 175A, 175B, 175C, 177, 177A, 177B, 177RG, 180, 180A, 180B, 180C, 180D, 180E, 180F, 180G, 180H, 180J, 180K, 182, 182A, 182B, 182C, 182D, 182E, 182F, 182G, 182H, 182J, 182K, 182L, 182M, 182N, 182P, 182Q, 182R, 182S, 182T, R182, T182, TR182, T182T, 185, 185A, 185B, 185C, 185D, 185E, A185E, A185F, 190, (LC-126A, B, C) 195, 195A, 195B, 210, 210A, 210B, 210C, 210D, 210E, 210F, T210F, 210G, T210G, 210H, T210H, 210J, T210J, 210K, T210K, 210L, T210L, 210M, T210M, 210N, P210N, T210N, 210R, P210R, T210R, 210-5 (205), 210-5A (205A), 206, P206, P206A, P206B, P206C, P206D, P206E, TP206A, TP206B, TP206C, TU206D, TU206E, TU206F, TU206G, 206H, T206H, 207, 207A, T207, T207A, 208, 208A, 208B, 310, 310A (USAF U-3A), 310B, 310C, 310D, 310E (USAF U-3B), 310F, 310G, 310H, E310H, 310I, 310J, 310J-1, E310J, 310K, 310L, 310N, 310P, T310P, 310Q, T310Q, 310R, T310R, 320, 320A, 320B, 320C, 320D, 320E, 320F, 320-1, 335, 340, 340A, 336, 337, 337A (USAF 02B), 337B, T337B, 337C, 337E, T337E, T337C, 337D, T337D, M337B (USAF 02A), 337F, T337F, T337G, 337G, 337H, P337H, T337H, T337H-SP, 401, 401A, 401B, 402, 402A, 402B, 402C, 411, 411A, 414, 414A, 421, 421A, 421B, 421C, 425, 404, 406, 441. COMMONWEALTH OF AUSTRALIA (Civil Aviation Safety Regulations 1998), PART 39 - 107 CIVIL AVIATION SAFETY AUTHORITY SCHEDULE OF AIRWORTHINESS DIRECTIVES Radio Communication and Navigation Equipment AD/RAD/81 Amdt 1 (continued) Page 3 of 8 Cirrus Design Corporation SR20, SR22. Commander Aircraft Company 112, 112TC, 112B, 112TCA, 114, 114A, 114B, 114TC. de Havilland Inc DHC-2 Mk. I, DHC-2 Mk. II, DHC-2 Mk. III. Dynac Aerospace Corporation (Volaire) 10, (Volaire) 10A, (Aero Commander) 100, (Aero Commander) 100A, (Aero Commander) 100- 180. Diamond Aircraft Industries DA-20-A1, DA20-C1, DA 40. Empressa Brasileira de Aeronautica S.A. Embraer EMB-110P1, EMB-110PE. Extra Flugzeugbau Gmbh EA300, EA300L, EA300S, EA300/200, EA-400. Fairchild Aircraft Corporation SA26-T, SA26-AT, SA226-T, SA226-AT, SA226-T(B), SA227-AT, SA227-TT, SA226-TC, SA227-AC (C- 26A), SA227-CC, SA227-DC (C-26B). Global Amphibians, LLC Colonial C-1, Colonial C-2, Lake LA-4, Lake LA-4A, Lake LA-4P, Lake LA-4-200, Lake Model 250. Grob-Werke G115, G115A, G115B, G115C, G115C2, G115D, G115D2, G115EG, G120A. Lancair Company LC40-550FG. LanShe Aerospace, LLC MAC-125C, MAC-145, MAC-145A, MAC-145B. Learjet Inc 23. COMMONWEALTH OF AUSTRALIA (Civil Aviation Safety Regulations 1998), PART 39 - 107 CIVIL AVIATION SAFETY AUTHORITY SCHEDULE OF AIRWORTHINESS DIRECTIVES Radio Communication and Navigation Equipment AD/RAD/81 Amdt 1 (continued) Page 4 of 8 Lockheed Aircraft Corporation 18. Luscombe Aircraft Corporation 11A, 11E. Maule Aerospace Technology, Inc Bee Dee M-4, M-4, M-4C, M-4S, M-4T, M-4180C, M- 4-180S, M-4-180T, M-4-210, M-4-210C, M-4-210S, M-4-210T, M-4-220, M-4-220S, M-4-220T, M-5- 180C, M-5-200, M-5-210C, M-5-210TC, M-5-220C, M-5-235C, M-6-180, M-6-235, M-7-235, MX-7-235, MX-7-180, MX-7-420, MXT-7-180, MT-7-235, M-8- 235, MX-7-160, MXT-7-160, MX-7-180A, MXT-7- 180A, MXT-7-180B, M-7-235B, M-7-235A, M-7-

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235C, M-7-180C, M-7-260, MT-7-260, M-7-260C, M-7-420AC, MX-7-160C, MX-7-180AC, M-7-420A, MT-7-420. Mitsubishi Heavy Industries, Ltd MU-2B-25, MU-2B-35, MU-2B-26, MU-2B-36, MU- 2B-26A, MU-2B-36A, MU-2B-40, MU-2B-60, MU- 2B, MU-2B-20, MU-2B-20, MU-2B-15. Mooney Aeroplane Company, Inc M20, M20A, M20B, M20C, M20D, M20E, M20F, M20G, M20J, M20K, M20L, M20M, M20R, M20S, M22. Moravan a.s Z-242L, Z-143L. Navion Aircraft Company, Ltd NAVION, Navion (L-17A), Navion (L-17B), Navion (L-17C), Navion B, Navion D, Navion E, Navion F, Navion G, Navion H. COMMONWEALTH OF AUSTRALIA (Civil Aviation Safety Regulations 1998), PART 39 - 107 CIVIL AVIATION SAFETY AUTHORITY SCHEDULE OF AIRWORTHINESS DIRECTIVES Radio Communication and Navigation Equipment AD/RAD/81 Amdt 1 (continued) Page 5 of 8 New Piper Aircraft, Inc PA-12, PA-12S, PA-18, PA-18S, PA-18 "105" (Special), PA-18S "105" (Special), PA-18A, PA-18 "125" (Army L-21A), PA-18S "125," PA-18AS "125," PA-18 "135" (Army L-21B), PA-18A "135," PA-18S "135," PA-18 "150," PA-18A "150," PA-18S "150," PA-18AS "150," PA-19 (Army L-18B), PA-19S, PA- 20, PA-20S, PA-20 "115," PA-20S "115," PA-20 "135," PA-20S "135," PA-22, PA-22-108, PA-22-135, PA-22S-135, PA-22-150, PA-22S-150, PA-22-160, PA-22S-160, PA-23, PA-23-160, PA-23-235, PA-23- 250, PA-E23-250, PA-24, PA-24-250, PA-24-260, PA-24-400, PA-28-140, PA-28-150, PA-28-151, PA- 28-160, PA-28-161, PA-28-180, PA-28-235, PA-28S- 160, PA-28R-180, PA-28S-180, PA-28-181, PA-28R- 200, PA-28R-201, PA-28R-201T, PA-28RT-201, PA- 28RT-201T, PA-28-201T, PA-28-236, PA-30, PA-39, PA-40, PA-31P, PA-31T, PA-31T1, PA-31T2, PA- 31T3, PA-31P-350, PA-32-260, PA-32-300, PA-32S- 300, PA-32R-300, PA-32RT-300, PA-32RT-300T, PA-32R-301 (SP), PA-32R-301 (HP), PA-32R-301T, PA-32-301, PA-32-301T, PA-34-200, PA-34-200T, PA-34-220T, PA-42, PA-42-720, PA-42-1000, PA-42- 720R, PA-44-180, PA-44-180T, PA-46-310P, PA-46- 350P, PA-46-500TP. Ostmecklenburgische Flugzeugbau GmgH OMF-100-160. Piaggio Aero Industries S.p.A P-180. Pilatus Aircraft Ltd PILATUS PC-12, PILATUS PC-12/45, PC-6, PC-6- H1, PC-6-H2, PC-6/350, PC-6/350-H1, PC-6/350- H2, PC-6/A, PC-6/A-H1, PA-6/A-H2, PC-6/B-H2, PC-6/B1-H2, PC-6/B2-H2, PC-6/B2-H4, PC-6/C-H2, PC-6/C1-H2, PC-7. Prop-Jets, Inc 200, 200A, 200B, 200C, 200D, 400. Panstwowe Zakladv Lotnicze (PZL) PZL-104 WILGA 80, PZL-104M WILGA 2000, PZL- WARSZAWA, PZL-KOLIBER 150A, PZL-KOLIBER 160A. COMMONWEALTH OF AUSTRALIA (Civil Aviation Safety Regulations 1998), PART 39 - 107 CIVIL AVIATION SAFETY AUTHORITY SCHEDULE OF AIRWORTHINESS DIRECTIVES Radio Communication and Navigation Equipment AD/RAD/81 Amdt 1 (continued) Page 6 of 8 PZL WSK/Mielec Obrsk PZL M20 03, PZL M26 01. Raytheon 35-33, 35-A33, 35-B33, 35-C33, 35-C33A, E33, E33A, E33C, F33, F33A, F33C, G33, H35, J35, K35, M35, N35, P35, S35, V35, V35A, V35B, 36, A36, A36TC, B36TC, 35, A35, B35, C35, D35, E35, F35, G35, 35R, F90, 76, 200, 200C, 200CT, 200T, A200, B200, B200C, B200CT, B200T, 300, 300LW, B300, B300C, 1900, 1900C, 1900D, A100-1 (U-21J), A200 (C-12A), A200 (C-12C), A200C (UC-12B), A200CT (C-12D), A200CT (FWC-12D), A200CT (RC-12D), A200CT (C-12F), A200CT (RC-12G), A200CT (RC- 12H), A200CT (RC-12K), A200CT (RC-12P), A200CT (RC-12Q), B200C (C-12F), B200C (UC- 12F), B200C (UC-12M), B200C (C-12R), 1900C (C- 12J), 65, A65, A65-8200, 65-80, 65-A80, 65-A80- 8800, 65-B80, 65-88, 65-A90, 70, B90, C90, C90A, E90, H90, 65-A90-1, 65-A90-2, 65-A90-3, 65-A90-4, 95, B95, B95A, D95A, E95, 95-55, 95-A55, 95-B55, 95-B55A, 95-B55B (T-42A), 95-C55, 95-C55A, D55, D55A, E55, E55A, 56TC, A56TC, 58, 58A, 58P, 58PA, 58TC, 58TCA, 99, 99A, 99A (FACH), A99, A99A, B99, C99, 100, A100 (U-21F), A100A, A100C, B100, 2000, 3000, 390, 19A, B19, M19A, 23, A23, A23A, A23-19, A23-24, B23, C23, A24, A24R, B24R, C24R, 60, A60, B60, 18D, A18A, A18D, S18D, SA18A, SA18D, 3N, 3NM, 3TM, JRB-6, D18C, D18S, E18S, RC-45J (SNB-5P), E18S-9700, G18S, H18, C- 45G, TC-45G, C-45H, TC-45H, TC-45J, UC-45J (SNB-5), 50 (L-23A), B50 (L-23B), C50, D50 (L- 23E), D50A, D50B, D50C, D50E-5990, E50 (L-23D, RL-23D), F50, G50, H50, J50, 45 (YT-34), A45 (T- 34A or B-45), D45 (T-34B). Rockwell International Corporation BC-1A, AT-6 (SNJ-2), AT-6A (SNJ-3), AT-6B, AT-6C (SNJ-4), AT-6D (SNJ-5), AT-6F (SNF-6), SNJ-7, T- 6G, NOMAD NA-260. Short Brothers & Harland Ltd SC-7 Series 2, SC-7 Series 3. Slingsby Aviation Ltd T67M260, T67M260-T3A. COMMONWEALTH OF AUSTRALIA (Civil Aviation Safety Regulations 1998), PART 39 - 107 CIVIL AVIATION SAFETY AUTHORITY SCHEDULE OF AIRWORTHINESS DIRECTIVES Radio Communication and Navigation Equipment AD/RAD/81 Amdt 1 (continued) Page 7 of 8 SOCATA-Group Aerospatiale TB9, TB10, TB20, TB21, TB200, TBM 700, M.S. 760, M.S. 760 A, M.S. 760 B, Rallye 100S, Rallye 150ST, Rallye 150T, Rallye 235E, Rallye 235C, MS 880B, MS 885, MS 894A, MS 893A, MS 892A-150, MS 892E-150, MS 893E, MS 894E, GA-7. Tiger Aircraft LLC AA-1, AA-1A, AA-1B, AA-1C, AA-5, AA-5A, AA-5B, AG-5B. Twin Commander Aircraft Corporation 500, 500-A, 500-B, 500-U, 500-S, 520, 560, 560-A, 560-E, 560F, 680, 680E, 680F, 680FL, 680FL(P), 680T, 680V, 680W, 681, 685, 690, 690A, 690B, 690C, 690D, 695, 695A, 695B, 720, 700. Univair Aircraft Corporation 108, 108-1, 108-2, 108-3, 108-5. Vulcanair S.p.A P68, P68B, P68C, P68C-TC, P68 "Observer," P68 "Observer 2," P68TC "Observer," AP68TP300 "Spartacus," AP68TP 600 "Viator". Zenair Ltd CH2000. Requirement: Transponders with software version 3.00, 3.01, 3.02, 3.04 or 3.05 install software upgrade to at least version 3.06 in accordance in accordance with Garmin Mandatory Software Service Bulletin No. 0409 dated 19 July 2004. Transponders with software version 3.03 already installed require no further action. Note 2: Version 3.03 is no longer available from Garmin. Note 3: FAA AD 2005-01-19 Amdt 39-13944 refers. Compliance: Before 30 September 2005. This Amendment becomes effective on 14 April 2005. Background: The original issue of this Directive required the installation of GTX 330/330D Software Upgrade Version 3.03, 3.04 or 3.05. This was the result of observations that the GTX 330 and GTX 330D may detect, from other aircraft, the S1 (suppression) interrogating pulse below the Minimum Trigger Level (MTL) and, in some circumstances, not reply. The GTX 330/330D should still reply even if it detects S1 interrogating pulses below the MTL. COMMONWEALTH OF AUSTRALIA (Civil Aviation Safety Regulations 1998), PART 39 - 107 CIVIL AVIATION SAFETY AUTHORITY SCHEDULE OF AIRWORTHINESS DIRECTIVES Radio Communication and Navigation Equipment AD/RAD/81 Amdt 1 (continued) Page 8 of 8 This Amendment increases applicability to include GTX 33 and GTX 33D transponders and requires transponders to have software version 3.06 installed (transponders with version 3.03 are not affected). The Amendment resulted from advice to the FAA from Garmin that software versions 3-04 and 3.05 inadvertently removed the correction to not suppress the S1 below the MTL and is issued to prevent interrogating aircraft from possibly receiving inaccurate replies due to suppression from aircraft equipped with the GTX 33/33D330/330D Mode S Transponders when the pulses are below the MTL. The inaccurate replies could result in reduced vertical separation or unsafe TCAS resolution advisories. The original issue of this Directive became effective on 5 August 2004. James Coyne Delegate of the Civil Aviation Safety Authority 2 March 2005

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