[Federal Register: January 19, 2005 (Volume 70, Number 12)]
[Rules and Regulations]
[Page 2937-2941]
From the Federal Register Online via GPO Access [wais.access.gpo.gov]
[DOCID:fr19ja05-3]
[[Page 2937]]
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DEPARTMENT OF TRANSPORTATION
Federal Aviation Administration
14 CFR Part 39
[Docket No. FAA-2004-18743; Directorate Identifier 2004-CE-23-AD;
Amendment 39-13944; AD 2005-01-19]
RIN 2120-AA64
Airworthiness Directives; GARMIN International Inc. GTX 33, GTX
33D, GTX 330, and GTX 330D Mode S Transponders
AGENCY: Federal Aviation Administration (FAA), DOT.
ACTION: Final rule.
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SUMMARY: 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.
DATES: This AD becomes effective on February 23, 2005.
As of February 23, 2005, the Director of the Federal Register
approved the incorporation by reference of certain publications listed
in the regulation.
ADDRESSES: To get the service information identified in this AD,
contact GARMIN International Inc., 1200 East 151st Street, Olathe, KS
66062; telephone: 913-397-8200. To review this service information, go
to the National Archives and Records Administration (NARA). For
information on the availability of this material at NARA, go to: http://www.archives.gov/federal_register/code_of_federal_regulations/ibr_locations.html
or call (202) 741-6030.
To view the AD docket, go to the Docket Management Facility; U.S.
Department of Transportation, 400 Seventh Street, SW., Nassif Building,
Room PL-401, Washington, DC 20590-001 or on the Internet at http://dms.dot.gov.
The docket number is FAA-2004-18743.
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: roger.souter@faa.gov.
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,
and this caused FAA to issue AD 2004-10-15, Amendment 39-13645 (69 FR
29212, dated May 21, 2004). AD 2004-10-15 currently requires the
incorporation of GTX 330/330D Software Upgrade to at least Version,
3.03, 3.04, or 3.05 on certain GTX 330 and GTX 330D Mode S transponders
that are installed on airplanes.
What has happened since AD 2004-10-15 to initiate this action?
After the issuance of AD 2004-10-15, GARMIN International Inc.
discovered that minor changes made to GTX 330/330D Software Upgrades
3.04 and 3.05 inadvertently removed the correction to not suppress the
S1 pulse below MTL. Garmin also discovered the Software Upgrade must be
installed on GTX 33 and GTX 33D Mode S transponders as well as the GTX
330 and GTX 330D Mode S transponders.
What is the potential impact if FAA took no action? If these
changes are not incorporated, then interrogating aircraft could
possibly receive 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. Software Upgrade Version 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. The inaccurate replies could
result in reduced vertical separation.
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 GTX 330 and GTX 330D Mode S
transponders that are installed on airplanes. This proposal was
published in the Federal Register as a notice of proposed rulemaking
(NPRM) on October 7, 2004 (69 FR 60100). The NPRM proposed to require
you to install GTX 33/33D/330/330D Software Upgrade Version 3.03 or
3.06.
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: Direct the AD Only to Those Products That Have the Old
SW Versions 3.00, 3.01, 3.02, 3.04, and 3.05
What is the commenter's concern? The NPRM currently requires
installation of GTX 330/330D Software Upgrade Version 3.03 or 3.06 to
comply with the proposed AD, or later Software Versions by way of an
AMOC. The commenter would like to direct the AD only to those products
that have the old software versions 3.00, 3.01, 3.02, 3.04, and 3.05
installed; so that if the new software version 3.06 or later is
installed the AD does not affect that product. The AD should not apply
to future software versions.
What is FAA's response to the concern? We concur. This was the
intent of the NPRM, and we have reworded the AD to reflect this
comment.
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
[[Page 2938]]
--Do not add any additional burden upon the public than was already
proposed in the NPRM.
Docket Information
Where can I go to view the docket information? You may view the AD
docket that contains information relating to this subject in person at
the DMS Docket Offices between 9 a.m. and 5 p.m. (eastern standard
time), Monday through Friday, except Federal holidays. The Docket
Office (telephone 1-800-647-5227) is located on the plaza level of the
Department of Transportation NASSIF Building at the street address
stated in ADDRESSES. You may also view the AD docket on the Internet at
http://dms.dot.gov.
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.
Costs of Compliance
How many airplanes does this AD impact? We estimate that this AD
affects 5,400 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 provide warranty
only for Service Bulletin No. 0409, dated July 19, 2004 (which
incorporates Software Upgrade 3.06) installation as specified in the
service information. Although Software Upgrade 3.03 is still in
compliance with this proposed AD, if previously installed, Software
Upgrade 3.03 is no longer available through Garmin.
Authority for This Rulemaking
What authority does FAA have for issuing this rulemaking action?
Title 49 of the United States Code specifies the FAA's authority to
issue rules on aviation safety. Subtitle I, Section 106 describes the
authority of the FAA Administrator. Subtitle VII, Aviation Programs,
describes in more detail the scope of the agency's authority.
We are issuing this rulemaking under the authority described in
Subtitle VII, Part A, Subpart III, Section 44701, ``General
requirements.'' Under that section, Congress charges the FAA with
promoting safe flight of civil aircraft in air commerce by prescribing
regulations for practices, methods, and procedures the Administrator
finds necessary for safety in air commerce. This regulation is within
the scope of that authority because it addresses an unsafe condition
that is likely to exist or develop on products identified in this AD.
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
``Docket No. FAA-2004-18743; Directorate Identifier 2004-CE-23-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 removing AD 2004-10-15, Amendment 39-13645
and adding a new AD to read as follows:
2005-01-19 GARMIN International Inc.: Amendment 39-13944; Docket No.
FAA-2004-18743; Directorate Identifier 2004-CE-23-AD.
When Does This AD Become Effective?
(a) This AD becomes effective on February 23, 2005.
What Other ADs Are Affected by This Action?
(b) This AD supersedes AD 2004-10-15, Amendment 39-13645.
What Airplanes Are Affected by This AD?
(c) This AD affects GARMIN International Inc. GTX 33, GTX 33D,
GTX 330, and GTX 330D Mode S transponders that include software
versions 3.00, 3.01, 3.02, 3.04, or 3.05 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, S208, 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-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.
[[Page 2939]]
(10) Bombardier Inc.......... (Otter) DHC-3, DHC-6-1, DHC-6-100, DHC-6-
200, DHC-6-300.
(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-110P2.
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, MX-7-180B, M-7-235B, M-7-235A, M-
7-235C, MX-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-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 (L17B),
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.
[[Page 2940]]
(37) Panstwowe Zakladv PZL-104 WILGA 80, PZL-104M WILGA 2000,
Lotnicze (PZL). PZL-WARSZAWA, PZL-KOLIBER 150A, PZL-
KOLIBER 160A.
(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) This AD 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. 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 33/33D/330/330D
Mode S transponders when the pulses are below the minimum trigger
level (MTL). 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. The inaccurate replies
could result in reduced vertical separation.
What Must I Do To Address This Problem?
(e) To address this problem, you must do the following:
------------------------------------------------------------------------
Actions Compliance Procedures
------------------------------------------------------------------------
Install GTX 33/33D/330/330D Install the Follow GARMIN
Software Upgrade for software upgrade Mandatory
transponders with software within 180 days Software Service
version 3.00, 3.01, 3.02, 3.04, after February Bulletin No.:
3.05 to at least version 3.06. 23, 2005 (the 0304, Rev B,
If version 3.03 is already effective date of dated June 12,
installed, no further action is this AD), unless 2003
required. This version is no already accomplished.
longer available from Garmin. accomplished. (Software Upgrade
This AD does not apply to 3.03) or GARMIN
software versions past 3.05. Mandatory
Software Service
Bulletin No.:
0409, dated July
19, 2004
(Software Upgrade
3.06).
------------------------------------------------------------------------
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 any already
approved alternative methods of compliance, 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; email address: roger.souter@faa.gov.
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 (Software Upgrade 3.03) or GARMIN
Mandatory Software Service Bulletin No.: 0409, dated July 19, 2004
(Software Upgrade 3.06). The Director of the Federal Register
approved the incorporation by reference of
[[Page 2941]]
this service bulletin in accordance with 5 U.S.C. 552(a) and 1 CFR
part 51. To get a copy of this service information, contact GARMIN
International Inc. 1200 East 151st Street, Olathe, KS 66062;
telephone: 913-397-8200. To review copies of this service
information, go to the National Archives and Records Administration
(NARA). For information on the availability of this material at
NARA, go to: http://www.archives.gov/federal_register/code_of_federal_regulations/ibr_locations.html
or call (202) 741-6030. To
view the AD docket, go to the Docket Management Facility; U.S.
Department of Transportation, 400 Seventh Street, SW., Nassif
Building, Room PL-401, Washington, DC 20590-001 or on the Internet
at http://dms.dot.gov. The docket number is FAA-2004-18743.
Issued in Kansas City, Missouri, on January 7, 2005.
James E. Jackson,
Acting Manager, Small Airplane Directorate, Aircraft Certification
Service.
[FR Doc. 05-832 Filed 1-18-05; 8:45 am]
BILLING CODE 4910-13-P