Nachrichten für Luftfahrer 2021 Teil 2 (weicht ggf. von Druckversion ab)
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AGÊNCIA NACIONAL DE AVIAÇÃO CIVIL - BRAZIL
BRAZILIAN AIRWORTHINESS DIRECTIVE
AD No.: 2021-05-01 Effective Date: 14 May. 2021
The following Brazilian Airworthiness Directive (AD), issued by the Agência Nacional de Aviação Civil (ANAC) in accordance with
provisions of Chapter IV, Title III of Código Brasileiro de Aeronáutica - Law No. 7,565 dated 19 December 1986 - and Regulamento Brasileiro
da Aviação Civil (RBAC) 39, applies to all aircraft registered in the Registro Aeronáutico Brasileiro. No person may operate an aircraft to which
this AD applies, unless it has previously complied with the requirements established herein.
AD No. 2021-05-01 - YABORÃ / 39-1480.
APPLICABILITY:
(a) This Airworthiness Directive is applicable to Yaborã Indústria Aeronáutica S.A.
airplanes models ERJ190-300 and ERJ190-400 that have installed the hydraulic system #3 main
Alternating Current Motor Pump (ACMP 3A) with Part Number (P/N) 3033041-101.
CANCELLATION / REVISION:
Not applicable.
REASON:
It has been found the occurrence of premature failures of the hydraulic system ACMP
3A with PN 3033041-101 in Yaborã Indústria Aeronáutica S.A. airplanes models ERJ190-300 and
ERJ190-400. The ACMP tail bearing has exhibit excessive wear, which, if allowed to progress, increases
the probability of ACMP failures. In certain conditions the tail bearing wear may lead to failures that result
in loss of hydraulic system #3 and may affect the electrical power distribution system. This condition,
considering the combination with an independent failure in one engine, contributes to an unacceptable
increase in the likelihood of a failure condition that may lead to loss of control of the aircraft.
Since this condition may occur in other airplane of the same type and affects flight safety, a
corrective action is required. Thus, sufficient reason exists to request compliance with this AD in the
indicated time limit.
REQUIRED ACTION:
Repetitive replacement of the hydraulic system ACMP 3A with PN3033041-101.
COMPLIANCE:
Required as indicated below, unless already accomplished.
(b) Within 300 flight hours after the effective date of this AD or before the hydraulic
system ACMP 3A with PN 3033041-101 accumulates 2,700 flight hours, whichever occurs later, replace
the hydraulic system ACMP 3A with a serviceable one (see Note 3). Repeat the action required by this
paragraph before the hydraulic system ACMP 3A with PN 3033041 101 accumulates 2,700 flight hours.
Note 1: If it is not possible to determine the accumulated flight hours of part with PN
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3033041-101, this part shall not be considered a serviceable part (see Note 3) for the replacement required
in paragraph (b) of this AD.
Formulário F-900-04F GTAC 5659228 SEI 00066.000921/2021-41 / pg. 1
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Note 2: It is recommended to return the removed components to Yaborã Indústria
Aeronáutica S.A. for additional investigation of this issue.
Note 3: For the intent of this Airworthiness Directive, it is considered a serviceable ACMP
3A:
(i) ACMP 3A approved for use, as published in the AIPC, with a different PN of
3033041-101.
(ii) ACMP 3A with PN 3033041-101 that have accumulated time since new of less than
2,700 flight hours.
(iii) ACMP 3A with PN 3033041-101 that have accumulated less than 2,700 flight hours
since the last detailed inspection in which the tail bearing has been replaced.
(iv) ACMP 3B, PN 3033041-101, as long as it can be determined not having been
previously installed in the ACMP 3A position.
Note 4: The requirement to replace the ACMP with PN 3033041-101 is applicable only to
the ACMP 3A. There is no requirement associated to the ACMP 3B operation.
(c) Interim action
This AD is considered an interim action. ANAC may consider further mandatory actions
resulted from the investigation into the failures.
(d) Alternative methods of compliance (AMOCs)
A different method or a different compliance time, with the requirements of this AD, may
be used if approved by the Manager of the Continuing Airworthiness Technical Branch (Gerência
Técnica de Aeronavegabilidade Continuada - GTAC).
CONTACT:
For additional technical information, contact:
National Civil Aviation Agency (ANAC)
Continuing Airworthiness Technical Branch (GTAC)
Rua Doutor Orlando Feirabend Filho, nº 230 – Centro Empresarial Aquárius – Torre B
Parque Residencial Aquárius
CEP 12246-190 – São José dos Campos, SP – BRAZIL
Tel.: (12) 3203-6600; E-mail: pac@anac.gov.br
APPROVAL:
Original in Portuguese language available at the Continuing Airworthiness Technical
Branch (GTAC) of the National Civil Aviation Agency (ANAC). Signed by:
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ROBERTO JOSÉ SILVEIRA HONORATO
Head of Department
Formulário F-900-04F GTAC 5659228 SEI 00066.000921/2021-41 / pg. 2
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Department of Airworthiness (SAR)
ANAC
Referência: Processo nº 00066.000921/2021-41 SEI nº 5659228
27.05.2021
Formulário F-900-04F GTAC 5659228 SEI 00066.000921/2021-41 / pg. 3
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Lufttüchtigkeitsanweisung Luftfahrt-Bundesamt
- Sachgebiet T12 -
D-2021-131 38144 Braunschweig
FAA AD 2021-08-15 - Amdt. 39-21509 Fax: +49-531-2355-5197
email: AD@LBA.de
GARMIN INTERNATIONAL 17.05.2021
Betroffenes Luftfahrtgerät:
Art des Luftfahrtgerätes: Warngerät
Inhaber der Musterzulassung: Garmin International
Hersteller: Garmin International
Muster: Traffic Collision Avoidance Systems (TCAS)
Baureihen: Garmin International GMN-00962 GTS Processor Units mit den Part-Nummern
011-02571-0( ) und einer Software Version bis 3.13, hiervon ausgenommen ist
die Software Version 3.12.1. Die Processor Units sind in Flugzeugen installiert
und unter der Bezeichnung GTS 825, GTS 855 oder GTS 8000 bekannt.
Werknummern: Alle
Gerätenummer: -
Revisionsstand:
Originalausgabe
Airworthiness Directive der ausländischen Behörde:
FAA AD 2021-08-15 - Amdt. 39-21509
Genannte Airworthiness Directives unter dieser Rubrik, die nicht durch die EASA herausgegeben worden sind,
wurden durch die EASA über die Entscheidung Nr. 2019/018/ED übernommen und sind somit ebenfalls Airworthin-
ess Directives der EASA.
Die genannte Airworthiness Directive wird im Luftfahrt-Bundesamt unter der Nummer 2021-131 geführt.
Betrifft:
(ATA 34) GARMIN INTERNATIONAL - GTS Processor Units - Software Update
Anmerkungen:
Gemäß der EU Verordnung Nr. 1321/2014, Anhang I, Teil M, Unterabschnitt C, M.A.301 5.i) und M.A.303 dür-
fen Luftfahrzeuge nach dem in der Lufttüchtigkeitsanweisung angegebenen Termin nur in Betrieb genom-
men werden, wenn die angeordneten Maßnahmen ordnungsgemäß durchgeführt worden sind.
Die Europäische Agentur für Flugsicherheit (EASA) hat die oben referenzierte Lufttüchtigkeitsanweisung
FAA AD 2021-08-15 - Amdt. 39-21509 herausgegeben oder per Entscheidung Nr. 2019/018/ED übernommen.
Gemäß § 14 Abs. 2 der Betriebsordnung für Luftfahrtgerät (LuftBO) sind diese Lufttüchtigkeitsanweisun-
gen direkt in der Bundesrepublik Deutschland gültig und bedürfen keiner Umsetzung durch das Luftfahrt-
Bundesamt.
Mit Hilfe dieser Übersichtsseite veröffentlicht das Luftfahrt-Bundesamt ebenfalls die über § 14 Abs. 2 direkt
gültigen Lufttüchtigkeitsanweisungen der EASA in den Nachrichten für Luftfahrer und im Internet unter
www2.LBA.de/LTAs/. Dieser Service dient reinen Informationszwecken und liegt keinem Verwaltungsver-
fahren zu Grunde. Rechtsmittel sind damit ausgeschlossen.
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D-2021-131 Seite 1 von 1 191/2021
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[Federal Register Volume 86, Number 68 (Monday, April 12, 2021)]
[Rules and Regulations]
[Pages 18887-18890]
From the Federal Register Online via the Government Publishing Office [www.gpo.gov]
[FR Doc No: 2021-07422]
––––––––––––––––––––––––––––––––––
DEPARTMENT OF TRANSPORTATION
Federal Aviation Administration
14 CFR Part 39
[Docket No. FAA-2020-0991; Project Identifier AD-2020-00478-Q; Amendment 39-21509; AD
2021-08-15]
RIN 2120-AA64
Airworthiness Directives; Garmin International GMN-00962 GTS Processor Units
AGENCY: Federal Aviation Administration (FAA), DOT.
ACTION: Final rule.
––––––––––––––––––––––––––––––––––
SUMMARY: The FAA is adopting a new airworthiness directive (AD) for certain Garmin
International (Garmin) GMN-00962 GTS processor units (GTS 825, GTS 855, GTS 8000). This AD
was prompted by reports of GTS processor units issuing resolution advisories (RAs) when no risk of
collision or loss of separation exists between the airplanes involved. This AD requires updating the
software version of the affected GTS Processor units. The FAA is issuing this AD to address the
unsafe condition on these products.
DATES: This AD is effective May 17, 2021.
ADDRESSES: For service information identified in this final rule, contact Garmin International,
Garmin Aviation Support 1200 E. 151st Street, Olathe, KS 66062; phone: (866) 739-5687; website:
https://fly.garmin.com/fly-garmin/support/. You may view this service information at the FAA,
Airworthiness Products Section, Operational Safety Branch, 901 Locust St., Kansas City, MO 64106.
For information on the availability of this material at the FAA, call (816) 329-4148.
Examining the AD Docket
You may examine the AD docket at https://www.regulations.gov by searching for and locating
Docket No. FAA-2020-0991; or in person at Docket Operations between 9 a.m. and 5 p.m., Monday
through Friday, except Federal holidays. The AD docket contains this final rule, any comments
received, and other information. The address for Docket Operations is U.S. Department of
Transportation, Docket Operations, M-30, West Building Ground Floor, Room W12-140, 1200 New
Jersey Avenue SE, Washington, DC 20590.
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FOR FURTHER INFORMATION CONTACT: Paul Rau, Aviation Safety Engineer, Wichita
ACO Branch, FAA, 1801 Airport Road, Wichita, KS 67209; phone: (316) 946-4149; fax: (316) 946-
4107; email: paul.rau@faa.gov or Wichita-COS@faa.gov.
SUPPLEMENTARY INFORMATION:
Background
The FAA issued a notice of proposed rulemaking (NPRM) to amend 14 CFR part 39 by adding
an AD that would apply to Garmin GMN-00962 GTS processor units (GTS 825, GTS 855, GTS
8000) with part number 011-02571-0( ) and software version 3.13 or earlier (except version 3.12.1).
The NPRM published in the Federal Register on December 14, 2020 (85 FR 80696). The NPRM was
prompted by seven reports of false RAs involving aircraft equipped with Garmin GMN-00962 GTS
processor configured for traffic collision avoidance system II (TCAS II) (configuration marketed as
GTS-8000 units). The Garmin GMN-00962 GTS processor units are marketed by Garmin as the GTS
825, GTS 855 or GTS 8000, with the marketing name representing the traffic system configuration.
A false RA occurs when there is no risk of collision or loss of separation of the airplanes. These
false RAs result from the GTS Processor software potentially calculating incorrect range rates. This
results in traffic advisories or RAs being generated when targets are greater than 10 nautical miles
(NM) away. A TCAS event involving three or more airplanes can result in mid-air collision by
increasing the risk that the TCAS, in resolving the false RA with the initial airplane, will create an
actual loss of separation with a third airplane. This condition, if not addressed, could result in an RA
being generated when no risk of loss of separation or risk of collision exists between the airplanes
involved, which can lead to a mid-air collision with a third airplane.
In the NPRM, the FAA proposed to require updating the GTS processor unit software. The FAA
is issuing this AD to address the unsafe condition on these products.
The affected GTS processor units were installed on the airplanes listed below during production
and via an STC; however, the affected units may have been installed on other airplane models as a
supplemental type certificate (STC). Although the names found in parenthesis may not be listed on
the type certificate, the manufacturer may use those names as marketing names for the airplanes.
• Textron Aviation Inc. (type certificate previously held by Cessna Aircraft Company) Model
525 (Cessna Citation M2), Model 525B (Cessna Citation CJ3+), Model Model 680 Sovereign,
Model 680A Latitude, and Model 700 (Cessna Citation Longitude);
• Embraer S.A. Model EMB-500 (Phenom 100) and Model EMB-505 (Phenom 300);
• Learjet Inc. Model 45 (Learjet 70) and Model 45 (Learjet 75); and
• Viking Air Limited (type certificate previously held by Shorts Brothers PLC, Shorts Brothers
Limited) Model SD3-60 SHERPA, modified by Field Aerospace STC No. ST00865DE.
Discussion of Final Airworthiness Directive Comments
The FAA received comments from six commenters. The commenters were Garmin, Learjet Inc.
(Learjet), Textron Aviation Inc. (Textron), NetJets, Field Aerospace, and an individual. The
following presents the comments received on the NPRM and the FAA's response to each comment.
Supportive
An individual commenter supported the NPRM without change.
Request Regarding Applicability
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Garmin requested the FAA clarify the AD applicability, as the proposed AD applies to GTS 825
and GTS 855, which are not affected by the false RA issue. Garmin suggested that the FAA add a
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clarifying statement to the background section, and revise the applicability paragraph to remove
references to the GTS 825 and GTS 855.
The FAA disagrees. This AD applies to the GTS Processor part number 011-02571-0( ) units
with software version 3.13 or earlier, except software version 3.12.1. The GTS 825, GTS 855, and
GTS 8000 marketing labels describe different installation configurations rather than different
appliances. While the GTS Processor will not generate false RAs when configured as TAS (GTS
825) or TCAS I (GTS 855), the appliance itself is still susceptible to the issue, and the unsafe
condition would occur if an operator enables the TCAS II option without also updating the software.
The FAA did not change this AD based on this comment.
Request Regarding Affected Aircraft
Field Aerospace stated that the proposed AD would affect Shorts Sherpa Model SD3-60
airplanes that have been modified under Field Aerospace STC No. ST00865DE.
The FAA agrees with this comment. The FAA issued this AD against the Garmin appliance
because the unsafe condition exists in the appliance. The FAA has added Model SD3-60 SHERPA
airplanes modified by Field Aerospace STC No. ST00865DE to the list of known affected aircraft in
the background section. This is not an all-inclusive list; all operators must check their airplanes for
the affected appliance, regardless of whether the model of their airplane is listed.
Request Regarding Unsafe Condition
Garmin requested the FAA add information relevant to the actual risk in the discussion of the
unsafe condition in the background section. Specifically, Garmin stated that loss of separation with a
third airplane is not inevitable when a false RA occurs. Garmin further stated that the TCAS II
implemented by the GTS 8000 is capable of negotiating threats with more than one airplane and will
adjust the RA in a situation should loss of separation to a third airplane result in a collision threat.
The FAA disagrees. The unsafe condition statement describes the condition the FAA is trying to
prevent; as such, it does not describe all possible outcomes. The FAA assessed the likelihood of the
unsafe condition in determining whether an AD or other action was warranted. While the FAA
acknowledges that no loss of separation event has been associated with this issue on Garmin
equipment, a similar issue with other TCAS II equipment has resulted in loss of separation events.
Additionally, the rate of false RAs observed with GTS Processor-equipped aircraft far exceeds the
acceptable probability of a false RA due to a failure of the system specified in Advisory Circular No.
20-151C, Airworthiness Approval of Traffic Alert and Collision Avoidance Systems (TCAS II),
Versions 7.0 & 7.1 and Associated Mode S Transponders, dated July 21, 2017. Further, the potential
for a loss of separation is not limited to the GTS Processor-equipped aircraft, as the second aircraft
may also contain equipment that attempts to resolve the multi-threat encounter. Although the TCAS
II is capable of resolving conflicts with more than one aircraft, since the current design of TCAS RAs
is limited to vertical maneuvers, it is not able to provide conflict resolution for all encounters
involving multiple aircraft.
The FAA did not change this AD based on this comment.
Request Regarding Required Actions and Compliance
Garmin requested the FAA revise the AD to require updating the affected software to version
3.12.1, or to version 3.14 or later. Garmin stated that, as proposed, the AD would not allow update of
software to version 3.12.1, which is not affected by the issue.
The FAA agrees with this comment. The unsafe condition is also resolved in version 3.12.1. The
FAA has changed the Required Actions and Compliance paragraph to also allow updating the GTS
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processor software to version 3.12.1.
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Learjet, Textron, and NetJets requested the FAA extend the compliance time to allow adequate
time for the certification and deployment of the required changes to all affected products. Learjet
requested a compliance time of 18 months, while Textron requested a compliance time of 24 months.
The FAA agrees. In addition to the reasons provided by the commenters, the FAA's risk
assessment, in consideration of the ongoing pandemic and resulting reduction in air traffic, supports
extending the compliance time from 12 to 24 months.
Request Regarding Costs
Textron requested the FAA update the estimated cost information to include additional work for
Textron aircraft. Textron stated it has prior agreements with Garmin to accomplish this software
change as part of a package of other product improvements, for a per-aircraft cost of approximately
$3,000.
The FAA disagrees with this comment. The cost analysis in AD rulemaking actions typically
includes only the costs associated with complying with the AD. This AD does not mandate the entire
package of changes for Textron aircraft.
The FAA has not made changes to this AD based on this comment.
Request Regarding Certificate of Airworthiness
Learjet requested the FAA revise the AD to allow initial Certificates of Airworthiness to be
issued to newly-manufactured aircraft prior to complying with the AD. Learjet stated that
certification of new software to comply with the AD (software later than version 3.13) will take a
minimum of 9 months.
The FAA disagrees with this comment. The AD does not prohibit the issuance of a Certificate of
Airworthiness to eligible aircraft. Newly-manufactured aircraft need to comply with the AD actions
within the same timeframe as aircraft in the current U.S. fleet.
The FAA has not made changes to this AD based on this comment.
Conclusion
The FAA reviewed the relevant data, considered any comments received, and determined that air
safety requires adopting this AD as proposed. Accordingly, the FAA is issuing this AD to address the
unsafe condition on these products. Except for minor editorial changes and any other changes
described previously, this AD is adopted as proposed in the NPRM. None of the changes will
increase the economic burden on any operator.
Related Service Information
The FAA reviewed Garmin Service Bulletin No. 2065, Revision A, dated May 7, 2020; and
Garmin Service Bulletin No. 1948, Revision B, dated March 26, 2020. These service bulletins
contain procedures for uploading the software update to the GMN-00962 GTS Processor units (GTS
825, GTS 855, GTS 8000).
Costs of Compliance
The FAA estimates that this AD affects 700 appliances installed on airplanes of U.S. registry.
The FAA estimates the following costs to comply with this AD:
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Estimated Costs
Action Labor cost Parts Cost per Cost on U.S.
cost product operators
Update GTS Processor 4.00 work-hours × $85 per $0 $340 $238,000
software hour = $340
Authority for This Rulemaking
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.
The FAA is 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 rulemaking action.
Regulatory Findings
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.
For the reasons discussed above, I certify that this AD:
(1) Is not a “significant regulatory action” under Executive Order 12866,
(2) Will not affect intrastate aviation in Alaska, 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.
List of Subjects in 14 CFR Part 39
Air transportation, Aircraft, Aviation safety, Incorporation by reference, Safety.
The Amendment
Accordingly, under the authority delegated to me by the Administrator, the FAA amends 14 CFR
part 39 as follows:
PART 39–AIRWORTHINESS DIRECTIVES
1. The authority citation for part 39 continues to read as follows:
Authority: 49 U.S.C. 106(g), 40113, 44701.
§ 39.13 [Amended]
2. The FAA amends § 39.13 by adding the following new airworthiness directive:
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AIRWORTHINESS
FAA DIRECTIVE
Aviation Safety
www.faa.gov/aircraft/safety/alerts/
www.gpoaccess.gov/fr/advanced.html
2021-08-15 Garmin International: Amendment 39-21509; Docket No. FAA-2020-0991; Project
Identifier AD-2020-00478-Q.
(a) Effective Date
This airworthiness directive (AD) is effective May 17, 2021.
(b) Affected ADs
None.
(c) Applicability
This AD applies to Garmin International GMN-00962 GTS processor units, part number 011-
02571-0( ), with software version 3.13 or earlier, except software version 3.12.1, installed on
airplanes certificated in any category. These units are marketed as the GTS 825, GTS 855, or GTS
8000.
(d) Subject
Joint Aircraft System Component (JASC) Code 3445, AIR COLLISION AVOIDANCE
SYSTEM (TCAS).
(e) Unsafe Condition
This AD was prompted by the GTS processor unit issuing false resolution advisories (RAs) when
no risk of collision or loss of separation exists between the airplanes involved. A traffic collision
avoidance system (TCAS) event involving three or more airplanes can result in mid-air collision by
increasing the risk that the TCAS, in resolving the false RA between the initial airplane, will create
an actual loss of separation with a third airplane. The FAA is issuing this AD to prevent these false
RAs, which can lead to a mid-air collision with a third airplane.
(f) Required Action and Compliance
Within 24 months after the effective date of this AD, update the GTS processor software to a
version that is not 3.13 or earlier, except 3.12.1. Software version 3.12.1 does not contain the unsafe
condition.
(g) Alternative Methods of Compliance (AMOCs)
(1) The Manager, Wichita ACO Branch, FAA, has the authority to approve AMOCs for this AD,
if requested using the procedures found in 14 CFR 39.19. In accordance with 14 CFR 39.19, send
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your request to your principal inspector or local Flight Standards District Office, as appropriate. If
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