AD 2004-10-15
final rule
Unsafe Condition
could result in reduced vertical separation or unsafe TCAS resolution advisories.
Federal Register Abstract
The FAA adopts a new airworthiness directive (AD) for certain GARMIN International Inc. GTX 330/GTX 330D Mode S transponders that are installed on aircraft. This AD requires you to install GTX 330/330D Software Upgrade Version 3.03, 3.04, or 3.05. This AD is 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. We are issuing this AD to prevent interrogating aircraft from possibly receiving inaccurate replies due to suppression from aircraft equipped with the GTX 330/330D Mode S Transponders when the pulses are below the MTL. The inaccurrate replies could result in reduced vertical separation or unsafe TCAS resolution advisories.
Document Text
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[Federal Register Volume 69, Number 99 (Friday, May 21, 2004)]
[Rules and Regulations]
[Pages 29212-29215]
From the Federal Register Online via the Government Publishing Office [<a href="http://www.gpo.gov">www.gpo.gov</a>]
[FR Doc No: 04-11438]
-----------------------------------------------------------------------
DEPARTMENT OF TRANSPORATION
Federal Aviation Administration
14 CFR Part 39
[Docket No. 2003-CE-39-AD; Amendment 39-13645; AD 2004-10-15]
RIN 2120-AA64
Airworthiness Directives; GARMIN International Inc. GTX 330 Mode
S Transponders and GTX 330D Diversity Mode S Transponders
AGENCY: Federal Aviation Administration (FAA), DOT.
ACTION: Final rule.
-----------------------------------------------------------------------
SUMMARY: The FAA adopts a new airworthiness directive (AD) for certain
GARMIN International Inc. GTX 330/GTX 330D Mode S transponders that are
installed on aircraft. This AD requires you to install GTX 330/330D
Software Upgrade Version 3.03, 3.04, or 3.05. This AD is 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. We are issuing this AD to prevent interrogating aircraft
from possibly receiving inaccurate replies due to suppression from
aircraft equipped with the GTX 330/330D Mode S Transponders when the
pulses are below the MTL. The inaccurrate replies could result in
reduced vertical separation or unsafe TCAS resolution advisories.
DATES: This AD becomes effective on July 9, 2004.
As of July 9, 2004, the Director of the Federal Register approved
the incorporation by reference of certain publications listed in the
regulation.
ADDRESSES: You may get the service information identified in this AD
from GARMIN International Inc., 1200 East 151st Street, Olathe, KS
66062, (913) 397-8200.
You may view the AD docket at FAA, Central Region, Office of the
Regional Counsel, Attention: Rules Docket No. 2003-CE-39-AD, 901
Locust, Room 506, Kansas City, Missouri 64106. Office hours are 8 a.m.
to 4 p.m., Monday through Friday, except Federal holidays.
FOR FURTHER INFORMATION CONTACT: Roger A. Souter, FAA, Wichita Aircraft
Certification Office (ACO), 1801 Airport Road, Room 100, Wichita,
Kansas 67209; telephone: 316-946-4134; facsimile: 316-946-4107; e-mail
address: <a href="/cdn-cgi/l/email-protection#473528202235693428323322350721262669202831"><span class="__cf_email__" data-cfemail="43312c2426316d302c36372631032522226d242c35">[email protected]</span></a>.
SUPPLEMENTARY INFORMATION:
Discussion
What events have caused this AD? The GTX 330/GTX 330D may detect
from other aircraft the S1 (suppression) interrogating pulse below the
MTL and, in some circumstances, does not reply. The GTX 330/330D should
still reply even if it detects S1 interrogating pulses below the MTL.
GARMIN International Inc. suspected the suppression problem after
observation between GARMIN company aircraft that were equipped with the
GTX 330 and Ryan Traffic and Collision Alert Device (TCAD). Engineering
bench tests and test flights confirmed that this suppression problem
existed.
What is the potential impact if FAA took no action? Interrogating
aircraft could possibly receive inaccurate replies due to suppression
from aircraft equipped with the GTX 330/330D Mode S Transponders when
the pulses are below the MTL. The inaccurate replies could result in
reduced vertical separation or unsafe TCAS resolution advisories.
Has FAA taken any action to this point? We issued a proposal to
amend part 39 of the Federal Aviation Regulations (14 CFR part 39) to
include an AD that would apply to certain GARMIN International Inc. GTX
330/330D Mode S transponders that are installed on aircraft. This
proposal was published in the Federal Register as a notice of proposed
rulemaking (NPRM) on December 30, 2003 (68 FR 75174). The NPRM proposed
to require you to install GTX 330/330D Software Upgrade Version 3.03.
Comments
Was the public invited to comment? We provided the public the
opportunity to participate in developing this AD. The following
presents the comments received on the proposal and FAA's response to
each comment:
Comment Issue: GTX 330/330D Software Upgrade Version 3.03
What is the commenter's concern? The NPRM currently requires
installation of GTX 330/330D Software Upgrade to Version 3.03 to comply
with the proposed AD. Two commenters request a text change of the AD to
allow installation of later software upgrade versions to comply with
the proposed AD.
What is FAA's response to the concern? Since later software upgrade
versions will contain, at a minimum, the elements of Version 3.03 and
thus will correct the unsafe condition, we agree with their request and
have changed the
[[Page 29213]]
text from ``Version 3.03'' to ``Version 3.03, 3.04, or 3.05.''
Conclusion
What is FAA's final determination on this issue? We have carefully
reviewed the available data and determined that air safety and the
public interest require adopting the AD as proposed except for the
changes discussed above and minor editorial corrections. We have
determined that these changes and minor corrections:
--Are consistent with the intent that was proposed in the NPRM for
correcting the unsafe condition; and
--Do not add any additional burden upon the public than was already
proposed in the NPRM.
Changes to 14 CFR Part 39--Effect on the AD
How does the revision to 14 CFR part 39 affect this AD? On July 10,
2002, the FAA published a new version of 14 CFR part 39 (67 FR 47997,
July 22, 2002), which governs the FAA's AD system. This regulation now
includes material that relates to altered products, special flight
permits, and alternative methods of compliance. This material
previously was included in each individual AD. Since this material is
included in 14 CFR part 39, we will not include it in future AD
actions.
Cost of Compliance
How many airplanes does this AD impact? We estimate that this AD
affects 1,300 airplanes in the U.S. registry.
What is the cost impact of this AD on owners/operators of the
affected airplanes? Garmin International Inc. will reimburse the 1.0
hours required for this modification per the most current GTX 330
Software Service Bulletin. This reimbursement will follow Garmin's
warranty Policies and Procedures stating that the most current
software, which includes this update and all other updates, should be
installed.
Compliance Time of This AD
What will be the compliance time of this AD? The compliance time of
this AD is within 30 days after the effective date of the AD.
Why is the compliance time presented in calendar time instead of
hours time-in-service (TIS)? The unsafe condition exists or could
develop on airplanes equipped with the affected equipment regardless of
airplane operation. For example, the unsafe condition has the same
chance of occurring on an airplane with 50 hours TIS as it does on one
with 5,000 hours TIS. Therefore, we are presenting the compliance time
of this AD in calendar time instead of hours TIS.
Regulatory Findings
Will this AD impact various entities? We have determined that this
AD will not have federalism implications under Executive Order 13132.
This AD will not have a substantial direct effect on the States, on the
relationship between the national government and the States, or on the
distribution of power and responsibilities among the various levels of
government.
Will this AD involve a significant rule or regulatory action? For
the reasons discussed above, I certify that this AD:
1. Is not a ``significant regulatory action'' under Executive Order
12866;
2. Is not a ``significant rule'' under the DOT Regulatory Policies
and Procedures (44 FR 11034, February 26, 1979); and
3. Will not have a significant economic impact, positive or
negative, on a substantial number of small entities under the criteria
of the Regulatory Flexibility Act.
We prepared a summary of the costs to comply with this AD and
placed it in the AD Docket. You may get a copy of this summary by
sending a request to us at the address listed under ADDRESSES. Include
``AD Docket No. 2003-CE-39-AD'' in your request.
List of Subjects in 14 CFR Part 39
Air transportation, Aircraft, Aviation safety, Incorporation by
reference, Safety.
Adoption of the Amendment
0
Accordingly, under the authority delegated to me by the Administrator,
the Federal Aviation Administration amends part 39 of the Federal
Aviation Regulations (14 CFR part 39) as follows:
PART 39--AIRWORTHINESS DIRECTIVES
0
1. The authority citation for part 39 continues to read as follows:
Authority: 49 U.S.C. 106(g), 40113, 44701.
Sec. 39.13 [Amended]
0
2. FAA amends Sec. 39.13 by adding a new AD to read as follows:
2004-10-15 Garmin International Inc.: Amendment 39-13645; Docket No.
2003-CE-39-AD.
When Does This AD Become Effective?
(a) This AD becomes effective on July 9, 2004.
What Other ADs Are Affected by This Action?
(b) None.
What Airplanes Are Affected by This AD?
(c) This AD affects GARMIN International Inc. GTX 330/330D Mode
S transponders that are installed on, but not limited to, the
following airplanes, certificated in any category:
------------------------------------------------------------------------
Manufacturer Model
------------------------------------------------------------------------
(1) 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.
(2) Aeronautica Macchi S.p.A. AL 60, AL 60-B, AL 60-F5, AL 60-C5, AM-3.
(3) Aerostar Aircraft PA-60-600 (Aerostar 600), PA-60-601
Corporation. (Aerostar 601), PA-60-601P (Aerostar
601P), PA-60-602P (Aerostar 602P), PA-60-
700P (Aerostar 700P), 360, 400.
(4) 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.
(5) Alliance Aircraft Group 15A, 20, H-250, H-295, (USAFU-10D), HT-
LLC. 295, H391 (USAFYL-24), H391B, H-395
(USAFL-28A or U-10B), H-395A, H-700, H-
800, HST-550, HST-550A (USAF AU-24A),
500.
(6) American Champion 402, 7GCA, 7GCB, 7KC, 7GCBA, 7GCAA,
Aircraft Corp. 7GCBC, 7KCAB, 8KCAB, 8GCBC.
(7) Sky International Inc.... A-1, A-1A, A-1B, S-1S, S-1T, S-2, S-2A, S-
2S, S-2C.
(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.
(9) Bellanca................. 14-13, 14-13-2. 14-13-3. 14-13-3W.
(10) Bombardier Inc.......... (Otter) DHC-3, DHC-6-1, DHC-6-100, DHC-6-
200, DHC-6-300.
[[Page 29214]]
(11) 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.
(12) Cirrus Design SR20, SR22.
Corporation.
(13) Commander Aircraft 112, 112TC, 112B, 112TCA, 114, 114A,
Company. 114B, 114TC.
(14) de Havilland Inc........ DHC-2 Mk. I, DHC-2 Mk. II, DHC-2 Mk. III.
(15) Dynac Aerospace (Volaire) 10, (Volaire) 10A, (Aero
Corporation. Commander) 100, (Aero Commander) 100A,
(Aero Commander) 100-180.
(16) Diamond Aircraft DA-20-A1, DA20-C1, DA 40.
Industries.
(17) Empressa Brasileira de EMB-110P1, EMB-110PE.
Aeronautica S.A. EMBRAER.
(18) Extra Flugzeugbau Gmbh.. EA300, EA300L, EA300S, EA300/200, EA-400.
(19) Fairchild Aircraft SA26-T, SA26-AT, SA226-T, SA226-AT, SA226-
Corporation. T(B), SA227-AT, SA227-TT, SA226-TC,
SA227-AC (C-26A), SA227-CC, SA227-DC (C-
26B).
(20) 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.
(21) Grob-Werke.............. G115, G115A, G115B, G115C, G115C2, G115D,
G115D2, G115EG, G120A.
(22) Lancair Company......... LC40-550FG.
(23) LanShe Aerospace, LLC... MAC-125C, MAC-145, MAC-145A, MAC-145B.
(24) Learjet Inc............. 23.
(25) Lockheed Aircraft 18.
Corporation.
(26) Luscombe Aircraft 11A, 11E.
Corporation.
(27) Maule Aerospace Bee Dee M-4, M-4, M-4C, M-4S, M-4T, M-
Technology, Inc. 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-7-235C, 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.
(28) Mitsubishi Heavy MU-2B-25, MU-2B-35, MU-2B-26, MU-2B-36,
Industries, Ltd. MU-2B-26A, MU-2B-36A, MU-2B-40, MU-2B-
60, MU-2B, MU-2B-20, MU-2B-20, MU-2B-15.
(29) Mooney Airplane Company, M20, M20A, M20B, M20C, M20D, M20E, M20F,
Inc. M20G, M20J, M20K, M20L, M20M, M20R,
M20S, M22.
(30) Moravan a.s............. Z-242L, Z-143L.
(31) Navion Aircraft Company, NAVION, Navion (L-17A), Navion (L-17B),
Ltd. Navion (L-17C), Navion B, Navion D,
Navion E, Navion F, Navion G, Navion H.
(32) 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.
(33) Ostmecklenburgische OMF-100-160.
Flugzeugbau GmgH.
(34) Piaggio Aero Industries P-180.
S.p.A.
(35) 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.
(36) Prop-Jets, Inc.......... 200, 200A, 200B, 200C, 200D, 400.
(37) Panstwowe Zakladv PZL-104 WILGA 80, PZL-104M WILGA 2000,
Lotnicze (PZL). PZL-WARSZAWA, PZL-KOLIBER 150A, PZL-
KOLIBER 160A.
[[Page 29215]]
(38) PZL WSK/Mielec Obrsk.... PZL M20 03, PZL M26 01.
(39) 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).
(40) Rockwell International BC-1A, AT-6 (SNJ-2), AT-6A (SNJ-3), AT-
Corporation. 6B, AT-6C (SNJ-4), AT-6D (SNJ-5), AT-6F
(SNF-6), SNJ-7, T-6G, NOMAD NA-260.
(41) Short Brothers & Harland SC-7 Series 2, SC-7 Series 3.
Ltd.
(42) Slingsby Aviation Ltd... T67M260, T67M260-T3A.
(43) SOCATA--Group TB9, TB10, TB20, TB21, TB200, TBM 700,
Aerospatiale. 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.
(44) Tiger Aircraft LLC...... AA-1, AA-1A, AA-1B, AA-1C, AA-5, AA-5A,
AA-5B, AG-5B.
(45) Twin Commander Aircraft 500, 500-A, 500-B, 500-U, 500-S, 520,
Corporation. 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.
(46) Univair Aircraft 108, 108-1, 108-2, 108-3, 108-5.
Corporation.
(47) Vulcanair S.p.A......... P68, P68B, P68C, P68C-TC, P68
``Observer,'' P68 ``Observer 2,'' P68TC
``Observer,'' AP68TP300 ``Spartacus,''
AP68TP 600 ``Viator''.
(48) Zenair Ltd.............. CH2000.
------------------------------------------------------------------------
What Is the Unsafe Condition Presented in This AD?
(d) The actions specified in this AD are intended to prevent
interrogating aircraft from possibly receiving inaccurate replies,
due to suppression, from aircraft equipped with the GTX 330/330D
Mode S Transponders when the pulses are below the Minimum Trigger
Level (MTL). The inaccurate replies could result in vertical
separation or unsafe TCAS resolution advisories.
What Must I Do To Address This Problem?
(e) To address this problem, you must do the following:
------------------------------------------------------------------------
Actions Compliance Procedures
------------------------------------------------------------------------
Install GTX 330/330D Software Install the Follow GARMIN
Upgrade to at least Version software upgrade Mandatory
3.03, 3.04, or 3.05. within 30 days Software Service
after July 9, Bulletin No.:
2004 (the 0304, Rev B,
effective date of dated June 12,
this AD), unless 2003 (SW Version
already done. 3.03); Garmin
Software Service
Bulletin No.
0310, Rev A,
dated November
10, 2003 (SW
Version 3.04); or
Garmin Software
Service Bulletin
No. 0401, Rev A,
dated February
18, 2004 (SW
Version 3.05).
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May I Request an Alternative Method of Compliance?
(f) You may request a different method of compliance or a
different compliance time for this AD by following the procedures in
14 CFR 39.19. Unless FAA authorizes otherwise, send your request to
your principal inspector. The principal inspector may add comments
and will send your request to the Manager, Wichita Aircraft
Certification Office (ACO), FAA. For information on an already
approved alternative methods of compliance, contact Roger A. Souter,
FAA, Witchita ACO, 1801 Airport Road, Room 100, Wichita, Kansas
67209; telephone: 316-946-4134; facsimile: 316-946-4107; e-mail
address: <a href="/cdn-cgi/l/email-protection#770518101205590418020312053711161659101801"><span class="__cf_email__" data-cfemail="e1938e868493cf928e94958493a1878080cf868e97">[email protected]</span></a>.
Does This AD Incorporate Any Material by Reference?
(g) You must do the actions required by this AD following the
instructions in GARMIN Mandatory Software Service Bulletin No.:
0304, Rev B, dated June 12, 2003 (SW Version 3.03); Garmin Software
Service Bulletin No. 0310, Rev A, dated November 10, 2003 (SW
Version 3.04); or Garmin Software Service Bulletin No. 0401, Rev A,
dated February 18, 2004 (SW Version 3.05). The Director of the
Federal Register approved the incorporation by reference of this
service bulletin in accordance with 5 U.S.C. 552(a) and 1 CFR part
51. You may get a copy from GARMIN International Inc. 1200 East
151st Street, Olathe, KS 66062. You may review copies at FAA,
Central Region, Office of the Regional Counsel, 901 Locust, Room
506, Kansas City, Missouri 64106; or at the Office of the Federal
Register, 800 North Capitol Street, NW., suite 700, Washington, DC.
Issued in Kansas City, Missouri, on May 13, 2004.
David R. Showers,
Acting Manager, Small Airplane Directorate, Aircraft Certification
Service.
[FR Doc. 04-11438 Filed 5-20-04; 8:45 am]
BILLING CODE 4910-13-M
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Retrieved: Apr 6, 2026
Rights: U.S. Government Public Domain
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