83_FR_13441 83 FR 13380 - Airworthiness Directives; Airbus Helicopters Deutschland GmbH (Type Certificate Previously Held by Eurocopter Deutschland GmbH)

83 FR 13380 - Airworthiness Directives; Airbus Helicopters Deutschland GmbH (Type Certificate Previously Held by Eurocopter Deutschland GmbH)

DEPARTMENT OF TRANSPORTATION
Federal Aviation Administration

Federal Register Volume 83, Issue 61 (March 29, 2018)

Page Range13380-13383
FR Document2018-06095

We are superseding Airworthiness Directive (AD) 2013-16-14 for Eurocopter Deutschland GmbH (now Airbus Helicopters Deutschland GmbH) Model EC 135 P1, P2, P2+, T1, T2, and T2+ helicopters. AD 2013-16-14 required installing a washer in and modifying the main transmission filter housing upper part. Since we issued AD 2013-16-14, Airbus Helicopters Deutschland GmbH has extended the overhaul interval for the main transmission and determined that other models may have the same unsafe condition. This AD retains the requirements of AD 2013-16-14, adds models to the applicability, and revises the required compliance time for the modification. The actions of this AD are intended to correct an unsafe condition on these products.

Federal Register, Volume 83 Issue 61 (Thursday, March 29, 2018)
[Federal Register Volume 83, Number 61 (Thursday, March 29, 2018)]
[Rules and Regulations]
[Pages 13380-13383]
From the Federal Register Online  [www.thefederalregister.org]
[FR Doc No: 2018-06095]


=======================================================================
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DEPARTMENT OF TRANSPORTATION

Federal Aviation Administration

14 CFR Part 39

[Docket No. FAA-2017-1011; Product Identifier 2017-SW-004-AD; Amendment 
39-19232; AD 2018-07-01]
RIN 2120-AA64


Airworthiness Directives; Airbus Helicopters Deutschland GmbH 
(Type Certificate Previously Held by Eurocopter Deutschland GmbH)

AGENCY: Federal Aviation Administration (FAA), DOT.

ACTION: Final rule.

-----------------------------------------------------------------------

SUMMARY: We are superseding Airworthiness Directive (AD) 2013-16-14 for 
Eurocopter Deutschland GmbH (now Airbus Helicopters Deutschland GmbH) 
Model EC 135 P1, P2, P2+, T1, T2, and T2+ helicopters. AD 2013-16-14 
required installing a washer in and modifying the main transmission 
filter housing upper part. Since we issued AD 2013-16-14, Airbus 
Helicopters Deutschland GmbH has extended the overhaul interval for the 
main transmission and determined that other models may have the same 
unsafe condition. This AD retains the requirements of AD 2013-16-14, 
adds models to the applicability, and revises

[[Page 13381]]

the required compliance time for the modification. The actions of this 
AD are intended to correct an unsafe condition on these products.

DATES: This AD is effective May 3, 2018.
    The Director of the Federal Register approved the incorporation by 
reference of a certain publication listed in this AD as of May 3, 2018.
    The Director of the Federal Register approved the incorporation by 
reference of a certain other publication listed in this AD as of 
October 9, 2013 (78 FR 54383, September 4, 2013).

ADDRESSES: For service information identified in this final rule, 
contact Airbus Helicopters, 2701 N. Forum Drive, Grand Prairie, TX 
75052; telephone (972) 641-0000 or (800) 232-0323; fax (972) 641-3775; 
or at http://www.airbushelicopters.com/website/technical-expert/. You 
may view this referenced service information at the FAA, Office of the 
Regional Counsel, Southwest Region, 10101 Hillwood Pkwy, Room 6N-321, 
Fort Worth, TX 76177. It is also available on the internet at http://www.regulations.gov by searching for and locating Docket No. FAA-2017-
1011.

Examining the AD Docket

    You may examine the AD docket on the internet at http://www.regulations.gov in Docket No. FAA-2017-1011; 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 AD, the European Aviation 
Safety Agency (EASA) AD, any incorporated-by-reference information, the 
economic evaluation, any comments received, and other information. The 
address for Docket Operations (phone: 800-647-5527) is Docket 
Operations, U.S. Department of Transportation, Docket Operations, M-30, 
West Building Ground Floor, Room W12-140, 1200 New Jersey Avenue SE, 
Washington, DC 20590.

FOR FURTHER INFORMATION CONTACT: Rao Edupuganti, Aviation Safety 
Engineer, Regulations and Policy Section, Rotorcraft Standards Branch, 
FAA, 10101 Hillwood Pkwy, Fort Worth, TX 76177; telephone (817) 222-
5110; email [email protected].

SUPPLEMENTARY INFORMATION: 

Discussion

    We issued a notice of proposed rulemaking (NPRM) to amend 14 CFR 
part 39 to remove AD 2013-16-14, Amendment 39-17552 (78 FR 54383, 
September 4, 2013), and add a new AD. AD 2013-16-14 applied to 
Eurocopter Deutschland GmbH (now Airbus Helicopters Deutschland GmbH) 
Model EC135 P1, P2, P2+, T1, T2, and T2+ helicopters with a certain 
serial-numbered main transmission FS108 housing upper part (upper 
part), part number (P/N) 4649 301 034. AD 2013-16-14 required 
installing a corrugated washer in the upper part filter housing and 
modifying each affected upper part by machining the oil filter bypass 
inlet.
    The NPRM published in the Federal Register on November 3, 2017 (82 
FR 51175). The NPRM was prompted by AD No. 2017-0002, dated January 9, 
2017 (AD 2017-0002), issued by EASA, which is the Technical Agent for 
the Member States of the European Union, to correct an unsafe condition 
for Eurocopter Deutschland GmbH Model EC 135 and EC635 helicopters. 
EASA advises that some affected upper parts have been re-identified 
with P/N 4649 301 067 or P/N 4649 301 088 without changing the serial 
number. EASA further advises that Airbus Helicopters has extended the 
compliance time to retrofit the housing to 5,150 hours to coincide with 
the extended interval between transmission overhauls.
    Accordingly, the NPRM proposed to retain the requirement to install 
a corrugated washer and modify the upper part and also proposed adding 
Airbus Helicopters Deutschland Model EC135P3 and Model EC135T3 
helicopters and upper part P/N 4649 301 067 and P/N 4649 301 088 to the 
applicability and extending the compliance time for machining the upper 
part to 5,150 hours TIS.

Comments

    We gave the public the opportunity to participate in developing 
this AD, but we did not receive any comments on the NPRM.

FAA's Determination

    We have reviewed the relevant information and determined that an 
unsafe condition exists and is likely to exist or develop on other 
helicopters of these same type designs and that air safety and the 
public interest require adopting the AD requirements as proposed.

Related Service Information Under 1 CFR Part 51

    We reviewed Airbus Helicopters Alert Service Bulletin (ASB) EC135-
63A-017, Revision 2, dated December 5, 2016 (ASB EC135-63A-017), for 
Model EC135 T1, T2, T2+, T3, P1, P2, P2+, P3, and 635 T1, T2+, T3, P2+, 
and P3 helicopters. This service information specifies removing the oil 
filter element and installing a corrugated washer. ASB EC135-63A-017 
also specifies reworking the affected upper part at the next repair or 
overhaul of the main transmission, no later than 5,150 flight hours 
after receipt of the service bulletin. EASA classified this ASB as 
mandatory and issued AD 2017-0002 to ensure the continued airworthiness 
of these helicopters.
    We also reviewed ZF Luftfahrttechnik GmbH Service Instruction No. 
EC135FS108-1659-1009, dated September 14, 2010, which specifies 
procedures for repairing the main transmission upper housing, and 
includes dimensions and tolerances for machining the upper part.
    This service information is reasonably available because the 
interested parties have access to it through their normal course of 
business or by the means identified in the ADDRESSES section.

Other Related Service Information

    We reviewed Eurocopter Alert Service Bulletin EC135-63A-017, 
Revision 0, dated October 11, 2010, for Model EC135 T1, T2, T2+, P1, 
P2, P2+, and 635 T1, T2+, and P2+ helicopters. This service information 
specifies the same Accomplishment Instructions as ASB EC135-63A-017, 
Revision 2, except with a shorter compliance time to rework the 
affected upper part.

Costs of Compliance

    We estimate that this AD will affect 236 helicopters of U.S. 
Registry. At an average labor rate of $85 per work hour, we estimate 
that operators will incur the following costs in order to comply with 
this AD. Installing the corrugated washer requires about .5 work hour, 
and required parts cost about $10, for a cost per helicopter of about 
$53, and a cost to the U.S. operator fleet of $12,508. Machining the 
housing upper part requires about 5 work hours and required parts cost 
about $73, for a cost per helicopter of $498, and a total cost to U.S. 
operators of $117,528. Based on these figures, we estimate the total 
cost of this AD to be $130,036 for the U.S. operator fleet or $551 per 
helicopter.
    According to Airbus Helicopters' service information some of the 
costs of this AD may be covered under warranty, thereby reducing the 
cost impact on affected persons. We do not control warranty coverage by 
Airbus Helicopters. Accordingly, we have included all costs in our cost 
estimate.

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

[[Page 13382]]

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 
rulemaking action.

Regulatory Findings

    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.
    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 DOT Regulatory Policies and 
Procedures (44 FR 11034, February 26, 1979),
    (3) Will not affect intrastate aviation in Alaska to the extent 
that a regulatory distinction is required, and
    (4) 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.

Adoption of 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

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. The FAA amends Sec.  39.13 by removing Airworthiness Directive (AD) 
2013-16-14, Amendment 39-17552 (78 FR 54383, September 4, 2013), and 
adding the following new AD:

2018-07-01 Airbus Helicopters Deutschland GmbH (Type Certificate 
Previously Held By Eurocopter Deutschland GmbH): Amendment 39-19232; 
Docket No. FAA-2017-1011; Product Identifier 2017-SW-004-AD.

(a) Applicability

    This AD applies to Model EC135 P1, P2, P2+, P3, T1, T2, T2+, and 
T3 helicopters with a main transmission FS108 housing upper part, 
part number (P/N) 4649 301 034, 4649 301 067, or 4649 301 088 and a 
serial number listed in Table 1 of Airbus Helicopters Alert Service 
Bulletin EC135-63A-017, Revision 2, dated December 5, 2016 (ASB 
EC135-63A-017), certificated in any category.

 (b) Unsafe Condition

    This AD defines the unsafe condition as an improperly 
manufactured bypass inlet in the oil filter area. This condition 
could adversely affect the oil-filter bypass function, resulting in 
failure of the main transmission and subsequent loss of control of 
the helicopter.

(c) Affected ADs

    This AD replaces AD 2013-16-14, Amendment 39-17552 (78 FR 54383, 
September 4, 2013).

(d) Effective Date

    This AD becomes effective May 3, 2018.

(e) Compliance

    You are responsible for performing each action required by this 
AD within the specified compliance time unless it has already been 
accomplished prior to that time.

(f) Required Actions

    (1) Within 3 months, remove the oil filter element and install a 
corrugated washer, P/N 0630100377, in the middle of the filter 
housing of the housing upper part as depicted in Figure 2 of ASB 
EC135-63A-017.
    (2) Within 5,150 hours time-in-service or at the next main 
transmission repair or overhaul, whichever occurs first, machine the 
main transmission housing upper part in accordance with Annex A of 
ZF Luftfahrttechnik GmbH Service Instruction No. EC135FS108-1659-
1009, dated September 14, 2010.
    (3) Do not install a main transmission upper part, P/N 4649 301 
034, 4649 301 067, or 4649 301 088, on any helicopter unless it has 
been modified as required by paragraphs (f)(1) through (f)(2) of 
this AD.

(g) Credit for Previous Actions

    Actions accomplished before the effective date of this AD in 
accordance with the procedures specified in Eurocopter Alert Service 
Bulletin EC135-63A-017, Revision 0, dated October 11, 2010, are 
considered acceptable for compliance with the corresponding actions 
specified in paragraph (f) of this AD.

(h) Alternative Methods of Compliance (AMOCs)

    (1) The Manager, Safety Management Section, Rotorcraft Standards 
Branch, FAA, may approve AMOCs for this AD. Send your proposal to: 
Rao Edupuganti, Aviation Safety Engineer, Regulations and Policy 
Section, Rotorcraft Standards Branch, FAA, 10101 Hillwood Pkwy, Fort 
Worth, TX 76177; telephone (817) 222-5110; email [email protected].
    (2) For operations conducted under a 14 CFR part 119 operating 
certificate or under 14 CFR part 91, subpart K, we suggest that you 
notify your principal inspector, or lacking a principal inspector, 
the manager of the local flight standards district office or 
certificate holding district office, before operating any aircraft 
complying with this AD through an AMOC.

(i) Additional Information

    (1) Eurocopter Alert Service Bulletin EC135-63A-017, Revision 0, 
dated October 11, 2010, which is not incorporated by reference, 
contains additional information about the subject of this AD. For 
service information identified in this AD, contact Airbus 
Helicopters, 2701 N. Forum Drive, Grand Prairie, TX 75052; telephone 
(972) 641-0000 or (800) 232-0323; fax (972) 641-3775; or at http://www.airbushelicopters.com/website/technical-expert/. You may review 
a copy of the service information at the FAA, Office of the Regional 
Counsel, Southwest Region, 10101 Hillwood Pkwy, Room 6N-321, Fort 
Worth, TX 76177.
    (2) The subject of this AD is addressed in European Aviation 
Safety Agency (EASA) AD No. 2017-0002, dated January 9, 2017. You 
may view the EASA AD on the internet at http://www.regulations.gov 
in the AD Docket.

(j) Subject

    Joint Aircraft Service Component (JASC) Code: 6320 Main Rotor 
Gearbox.

(k) Material Incorporated by Reference

    (1) The Director of the Federal Register approved the 
incorporation by reference (IBR) of the service information listed 
in this paragraph under 5 U.S.C. 552(a) and 1 CFR part 51.
    (2) You must use this service information as applicable to do 
the actions required by this AD, unless the AD specifies otherwise.
    (3) The following service information was approved for IBR on 
May 3, 2018.
    (i) Airbus Helicopters Alert Service Bulletin EC135-63A-017, 
Revision 2, dated December 5, 2016.
    (ii) Reserved.
    (4) The following service information was approved for IBR on 
October 9, 2013 (78 FR 54383, September 4, 2013).
    (i) ZF Luftfahrttechnik GmbH Service Instruction No. EC135FS108-
1659-1009, dated September 14, 2010.
    (ii) Reserved.
    (5) For service information identified in this AD, contact 
Airbus Helicopters, 2701 N. Forum Drive, Grand Prairie, TX 75052; 
telephone (972) 641-0000 or (800) 232-0323; fax (972) 641-3775; or 
at http://www.airbushelicopters.com/website/technical-expert/.
    (6) You may view this service information at FAA, Office of the 
Regional Counsel, Southwest Region, 10101 Hillwood Pkwy, Room 6N-
321, Fort Worth, TX 76177. For information on the availability of 
this material at the FAA, call (817) 222-5110.

[[Page 13383]]

    (7) You may view this service information that is incorporated 
by reference at the National Archives and Records Administration 
(NARA). For information on the availability of this material at 
NARA, call (202) 741-6030, or go to: http://www.archives.gov/federal-register/cfr/ibr-locations.html.

    Issued in Fort Worth, Texas, on March 19, 2018.
Scott A. Horn,
Deputy Director for Regulatory Operations, Compliance & Airworthiness 
Division, Aircraft Certification Service.
[FR Doc. 2018-06095 Filed 3-28-18; 8:45 am]
 BILLING CODE 4910-13-P



                                             13380             Federal Register / Vol. 83, No. 61 / Thursday, March 29, 2018 / Rules and Regulations

                                             were adequately funded and essential to                 use of the internet and other                         [Subpart Redesignated as Subpart B
                                             the functionality of the Order, thus no                 information technologies to provide                   and Amended]
                                             alternate expenditure levels were                       increased opportunities for citizen
                                             deemed appropriate. Additionally,                       access to Government information and                  ■ 3. Redesignate ‘‘Subpart—Rules and
                                             alternate assessment rates of $0.01 and                 services, and for other purposes.                     Regulations’’ as subpart B and revise the
                                             $0.015 per 7/10 bushel-carton were                         A proposed rule concerning this                    heading to read as follows:
                                             discussed. However, it was determined                   action was published in the Federal
                                             that these lower assessment rates would                 Register on December 4, 2017 (82 FR                   Subpart B—Administrative
                                             draw too heavily from reserves, roughly                 57164). Copies of the proposed rule                   Requirements
                                             $78,000 and $43,000, respectively. The                  were also mailed or sent via facsimile to
                                                                                                                                                           ■ 4. Section 906.235 is revised to read
                                             proposed rate of $0.02 per 7/10 bushel-                 all Texas citrus handlers. Finally, the
                                                                                                                                                           as follows:
                                             carton would draw an anticipated                        proposal was made available through
                                             $2,800 from reserves, thereby leaving                   the internet by USDA and the Office of                § 906.235   Assessment rate.
                                             reserves intact for future needs.                       the Federal Register. A 30-day comment                  On and after August 1, 2017, an
                                                A review of historical information and               period ending January 3, 2018, was                    assessment rate of $0.02 per 7/10-bushel
                                             preliminary information pertaining to                   provided for interested persons to                    carton or equivalent is established for
                                             the upcoming fiscal period indicates                    respond to the proposal. Two comments                 oranges and grapefruit grown in the
                                             that the average grower price for the                   were received, one in support of the                  Lower Rio Grande Valley in Texas.
                                             2017–18 season should be                                change, and one comment outside the
                                             approximately $15.50 per 7/10-bushel                    scope of this action. One commenter in                [Subpart Redesignated as Subpart C]
                                             carton or equivalent of oranges and                     support of the action stated that the
                                             grapefruit. Therefore, the estimated                    reduced rate is fair and continues to                 ■ 5. Redesignate ‘‘Subpart—Container
                                             assessment revenue for the 2017–18                      allow the Committee to pay its                        and Pack Requirements’’ as ‘‘Subpart
                                             crop year as a percentage of total grower               expenses. Administrative revisions to                 C—Container and Pack Requirements.’’
                                             revenue would be about 0.1 percent.                     the subpart headings were included in                   Dated: March 23, 2018.
                                                This action decreases the assessment                 the proposed rule. No comments were                   Bruce Summers,
                                             obligation imposed on handlers.                         received on those changes. Accordingly,
                                             Assessments are applied uniformly on                                                                          Acting Administrator, Agricultural Marketing
                                                                                                     no changes will be made to the rule as                Service.
                                             all handlers, and some of the costs may                 proposed, based on the comments
                                             be passed on to producers. However,                                                                           [FR Doc. 2018–06282 Filed 3–28–18; 8:45 am]
                                                                                                     received.
                                             decreasing the assessment rate reduces                     A small business guide on complying
                                                                                                                                                           BILLING CODE 3410–02–P
                                             the burden on handlers, and may reduce                  with fruit, vegetable, and specialty crop
                                             the burden on producers.                                marketing agreements and orders may
                                                The Committee’s meeting was widely                   be viewed at: http://www.ams.usda.gov/                DEPARTMENT OF TRANSPORTATION
                                             publicized throughout the Texas citrus                  rules-regulations/moa/small-businesses.
                                             industry and all interested persons were                                                                      Federal Aviation Administration
                                                                                                     Any questions about the compliance
                                             invited to attend the meeting and                       guide should be sent to Richard Lower
                                             participate in Committee deliberations                                                                        14 CFR Part 39
                                                                                                     at the previously mentioned address in
                                             on all issues. Like all Committee                       the FOR FURTHER INFORMATION CONTACT                   [Docket No. FAA–2017–1011; Product
                                             meetings, the August 8, 2017, meeting                   section.                                              Identifier 2017–SW–004–AD; Amendment
                                             was a public meeting and all entities,                     After consideration of all relevant                39–19232; AD 2018–07–01]
                                             both large and small, were able to                      material presented, including the                     RIN 2120–AA64
                                             express views on this issue.                            information and recommendation
                                                In accordance with the Paperwork                                                                           Airworthiness Directives; Airbus
                                                                                                     submitted by the Committee and other
                                             Reduction Act of 1995 (44 U.S.C.                                                                              Helicopters Deutschland GmbH (Type
                                                                                                     available information, it is hereby found
                                             Chapter 35), the Order’s information                                                                          Certificate Previously Held by
                                                                                                     that this rule will tend to effectuate the
                                             collection requirements have been                                                                             Eurocopter Deutschland GmbH)
                                                                                                     declared policy of the Act.
                                             previously approved by OMB and
                                             assigned OMB No. 0581–0189, Fruit                       List of Subjects in 7 CFR Part 906                    AGENCY:  Federal Aviation
                                             Crops. No changes in those                                Grapefruit, Marketing agreements,                   Administration (FAA), DOT.
                                             requirements as a result of this action                 Oranges, Reporting and recordkeeping                  ACTION: Final rule.
                                             are necessary. Should any changes                       requirements.
                                             become necessary, they would be                                                                               SUMMARY:  We are superseding
                                                                                                       For the reasons set forth in the                    Airworthiness Directive (AD) 2013–16–
                                             submitted to OMB for approval.                          preamble, 7 CFR part 906 is amended as
                                                This rule imposes no additional                                                                            14 for Eurocopter Deutschland GmbH
                                                                                                     follows:                                              (now Airbus Helicopters Deutschland
                                             reporting or recordkeeping requirements
                                             on either small or large Texas orange                   PART 906—ORANGES AND                                  GmbH) Model EC 135 P1, P2, P2+, T1,
                                             and grapefruit handlers. As with all                    GRAPEFRUIT GROWN IN LOWER RIO                         T2, and T2+ helicopters. AD 2013–16–
                                             Federal marketing order programs,                       GRANDE VALLEY IN TEXAS                                14 required installing a washer in and
                                             reports and forms are periodically                                                                            modifying the main transmission filter
                                             reviewed to reduce information                          ■ 1. The authority citation for 7 CFR                 housing upper part. Since we issued AD
                                             requirements and duplication by                         part 906 continues to read as follows:                2013–16–14, Airbus Helicopters
rmajette on DSKBCKNHB2PROD with RULES




                                             industry and public sector agencies. As                                                                       Deutschland GmbH has extended the
                                                                                                         Authority: 7 U.S.C. 601–674.
                                             noted in the initial regulatory flexibility                                                                   overhaul interval for the main
                                             analysis, USDA has not identified any                   [Subpart Redesignated as Subpart A]                   transmission and determined that other
                                             relevant Federal rules that duplicate,                                                                        models may have the same unsafe
                                             overlap, or conflict with this final rule.              ■ 2. Redesignate ‘‘Subpart—Order                      condition. This AD retains the
                                                AMS is committed to complying with                   Regulating Handling’’ as ‘‘Subpart A—                 requirements of AD 2013–16–14, adds
                                             the E-Government Act, to promote the                    Order Regulating Handling.’’                          models to the applicability, and revises


                                        VerDate Sep<11>2014   15:09 Mar 28, 2018   Jkt 244001   PO 00000   Frm 00006   Fmt 4700   Sfmt 4700   E:\FR\FM\29MRR1.SGM   29MRR1


                                                               Federal Register / Vol. 83, No. 61 / Thursday, March 29, 2018 / Rules and Regulations                                        13381

                                             the required compliance time for the                    Helicopters Deutschland GmbH) Model                   reworking the affected upper part at the
                                             modification. The actions of this AD are                EC135 P1, P2, P2+, T1, T2, and T2+                    next repair or overhaul of the main
                                             intended to correct an unsafe condition                 helicopters with a certain serial-                    transmission, no later than 5,150 flight
                                             on these products.                                      numbered main transmission FS108                      hours after receipt of the service
                                             DATES: This AD is effective May 3, 2018.                housing upper part (upper part), part                 bulletin. EASA classified this ASB as
                                                The Director of the Federal Register                 number (P/N) 4649 301 034. AD 2013–                   mandatory and issued AD 2017–0002 to
                                             approved the incorporation by reference                 16–14 required installing a corrugated                ensure the continued airworthiness of
                                             of a certain publication listed in this AD              washer in the upper part filter housing               these helicopters.
                                             as of May 3, 2018.                                      and modifying each affected upper part                   We also reviewed ZF Luftfahrttechnik
                                                The Director of the Federal Register                 by machining the oil filter bypass inlet.             GmbH Service Instruction No.
                                             approved the incorporation by reference                   The NPRM published in the Federal                   EC135FS108–1659–1009, dated
                                             of a certain other publication listed in                Register on November 3, 2017 (82 FR                   September 14, 2010, which specifies
                                             this AD as of October 9, 2013 (78 FR                    51175). The NPRM was prompted by                      procedures for repairing the main
                                             54383, September 4, 2013).                              AD No. 2017–0002, dated January 9,                    transmission upper housing, and
                                             ADDRESSES: For service information                      2017 (AD 2017–0002), issued by EASA,                  includes dimensions and tolerances for
                                             identified in this final rule, contact                  which is the Technical Agent for the                  machining the upper part.
                                             Airbus Helicopters, 2701 N. Forum                       Member States of the European Union,                     This service information is reasonably
                                             Drive, Grand Prairie, TX 75052;                         to correct an unsafe condition for                    available because the interested parties
                                             telephone (972) 641–0000 or (800) 232–                  Eurocopter Deutschland GmbH Model                     have access to it through their normal
                                             0323; fax (972) 641–3775; or at http://                 EC 135 and EC635 helicopters. EASA                    course of business or by the means
                                             www.airbushelicopters.com/website/                      advises that some affected upper parts                identified in the ADDRESSES section.
                                             technical-expert/. You may view this                    have been re-identified with P/N 4649
                                                                                                                                                           Other Related Service Information
                                             referenced service information at the                   301 067 or P/N 4649 301 088 without
                                                                                                     changing the serial number. EASA                        We reviewed Eurocopter Alert Service
                                             FAA, Office of the Regional Counsel,
                                                                                                     further advises that Airbus Helicopters               Bulletin EC135–63A–017, Revision 0,
                                             Southwest Region, 10101 Hillwood
                                                                                                     has extended the compliance time to                   dated October 11, 2010, for Model
                                             Pkwy, Room 6N–321, Fort Worth, TX
                                                                                                     retrofit the housing to 5,150 hours to                EC135 T1, T2, T2+, P1, P2, P2+, and 635
                                             76177. It is also available on the internet
                                                                                                     coincide with the extended interval                   T1, T2+, and P2+ helicopters. This
                                             at http://www.regulations.gov by
                                                                                                     between transmission overhauls.                       service information specifies the same
                                             searching for and locating Docket No.
                                                                                                       Accordingly, the NPRM proposed to                   Accomplishment Instructions as ASB
                                             FAA–2017–1011.
                                                                                                     retain the requirement to install a                   EC135–63A–017, Revision 2, except
                                             Examining the AD Docket                                 corrugated washer and modify the                      with a shorter compliance time to
                                               You may examine the AD docket on                      upper part and also proposed adding                   rework the affected upper part.
                                             the internet at http://                                 Airbus Helicopters Deutschland Model                  Costs of Compliance
                                             www.regulations.gov in Docket No.                       EC135P3 and Model EC135T3
                                                                                                     helicopters and upper part P/N 4649                      We estimate that this AD will affect
                                             FAA–2017–1011; or in person at Docket                                                                         236 helicopters of U.S. Registry. At an
                                             Operations between 9 a.m. and 5 p.m.,                   301 067 and P/N 4649 301 088 to the
                                                                                                     applicability and extending the                       average labor rate of $85 per work hour,
                                             Monday through Friday, except Federal                                                                         we estimate that operators will incur the
                                             holidays. The AD docket contains this                   compliance time for machining the
                                                                                                     upper part to 5,150 hours TIS.                        following costs in order to comply with
                                             AD, the European Aviation Safety                                                                              this AD. Installing the corrugated
                                             Agency (EASA) AD, any incorporated-                     Comments                                              washer requires about .5 work hour, and
                                             by-reference information, the economic                                                                        required parts cost about $10, for a cost
                                                                                                       We gave the public the opportunity to
                                             evaluation, any comments received, and                                                                        per helicopter of about $53, and a cost
                                                                                                     participate in developing this AD, but
                                             other information. The address for                                                                            to the U.S. operator fleet of $12,508.
                                                                                                     we did not receive any comments on the
                                             Docket Operations (phone: 800–647–                                                                            Machining the housing upper part
                                                                                                     NPRM.
                                             5527) is Docket Operations, U.S.                                                                              requires about 5 work hours and
                                             Department of Transportation, Docket                    FAA’s Determination                                   required parts cost about $73, for a cost
                                             Operations, M–30, West Building                           We have reviewed the relevant                       per helicopter of $498, and a total cost
                                             Ground Floor, Room W12–140, 1200                        information and determined that an                    to U.S. operators of $117,528. Based on
                                             New Jersey Avenue SE, Washington, DC                    unsafe condition exists and is likely to              these figures, we estimate the total cost
                                             20590.                                                  exist or develop on other helicopters of              of this AD to be $130,036 for the U.S.
                                             FOR FURTHER INFORMATION CONTACT: Rao                    these same type designs and that air                  operator fleet or $551 per helicopter.
                                             Edupuganti, Aviation Safety Engineer,                   safety and the public interest require                   According to Airbus Helicopters’
                                             Regulations and Policy Section,                         adopting the AD requirements as                       service information some of the costs of
                                             Rotorcraft Standards Branch, FAA,                       proposed.                                             this AD may be covered under warranty,
                                             10101 Hillwood Pkwy, Fort Worth, TX                                                                           thereby reducing the cost impact on
                                             76177; telephone (817) 222–5110; email                  Related Service Information Under 1
                                                                                                                                                           affected persons. We do not control
                                             rao.edupuganti@faa.gov.                                 CFR Part 51
                                                                                                                                                           warranty coverage by Airbus
                                             SUPPLEMENTARY INFORMATION:                                We reviewed Airbus Helicopters Alert                Helicopters. Accordingly, we have
                                                                                                     Service Bulletin (ASB) EC135–63A–017,                 included all costs in our cost estimate.
                                             Discussion                                              Revision 2, dated December 5, 2016
                                                                                                                                                           Authority for This Rulemaking
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                                               We issued a notice of proposed                        (ASB EC135–63A–017), for Model
                                             rulemaking (NPRM) to amend 14 CFR                       EC135 T1, T2, T2+, T3, P1, P2, P2+, P3,                 Title 49 of the United States Code
                                             part 39 to remove AD 2013–16–14,                        and 635 T1, T2+, T3, P2+, and P3                      specifies the FAA’s authority to issue
                                             Amendment 39–17552 (78 FR 54383,                        helicopters. This service information                 rules on aviation safety. Subtitle I,
                                             September 4, 2013), and add a new AD.                   specifies removing the oil filter element             Section 106, describes the authority of
                                             AD 2013–16–14 applied to Eurocopter                     and installing a corrugated washer. ASB               the FAA Administrator. Subtitle VII,
                                             Deutschland GmbH (now Airbus                            EC135–63A–017 also specifies                          Aviation Programs, describes in more


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                                             13382             Federal Register / Vol. 83, No. 61 / Thursday, March 29, 2018 / Rules and Regulations

                                             detail the scope of the Agency’s                        2018–07–01 Airbus Helicopters                         Rotorcraft Standards Branch, FAA, 10101
                                             authority.                                                  Deutschland GmbH (Type Certificate                Hillwood Pkwy, Fort Worth, TX 76177;
                                                We are issuing this rulemaking under                     Previously Held By Eurocopter                     telephone (817) 222–5110; email 9-ASW-
                                                                                                         Deutschland GmbH): Amendment 39–                  FTW-AMOC-Requests@faa.gov.
                                             the authority described in Subtitle VII,                    19232; Docket No. FAA–2017–1011;                     (2) For operations conducted under a 14
                                             Part A, Subpart III, Section 44701,                         Product Identifier 2017–SW–004–AD.                CFR part 119 operating certificate or under
                                             ‘‘General requirements.’’ Under that                                                                          14 CFR part 91, subpart K, we suggest that
                                             section, Congress charges the FAA with                  (a) Applicability
                                                                                                                                                           you notify your principal inspector, or
                                             promoting safe flight of civil aircraft in                 This AD applies to Model EC135 P1, P2,             lacking a principal inspector, the manager of
                                             air commerce by prescribing regulations                 P2+, P3, T1, T2, T2+, and T3 helicopters with         the local flight standards district office or
                                             for practices, methods, and procedures                  a main transmission FS108 housing upper               certificate holding district office, before
                                                                                                     part, part number (P/N) 4649 301 034, 4649            operating any aircraft complying with this
                                             the Administrator finds necessary for                   301 067, or 4649 301 088 and a serial number
                                             safety in air commerce. This regulation                                                                       AD through an AMOC.
                                                                                                     listed in Table 1 of Airbus Helicopters Alert
                                             is within the scope of that authority                   Service Bulletin EC135–63A–017, Revision 2,           (i) Additional Information
                                             because it addresses an unsafe condition                dated December 5, 2016 (ASB EC135–63A–                   (1) Eurocopter Alert Service Bulletin
                                             that is likely to exist or develop on                   017), certificated in any category.                   EC135–63A–017, Revision 0, dated October
                                             products identified in this rulemaking                  (b) Unsafe Condition                                  11, 2010, which is not incorporated by
                                             action.                                                                                                       reference, contains additional information
                                                                                                        This AD defines the unsafe condition as an         about the subject of this AD. For service
                                             Regulatory Findings                                     improperly manufactured bypass inlet in the           information identified in this AD, contact
                                                                                                     oil filter area. This condition could adversely       Airbus Helicopters, 2701 N. Forum Drive,
                                               We have determined that this AD will                  affect the oil-filter bypass function, resulting
                                             not have federalism implications under                                                                        Grand Prairie, TX 75052; telephone (972)
                                                                                                     in failure of the main transmission and
                                                                                                                                                           641–0000 or (800) 232–0323; fax (972) 641–
                                             Executive Order 13132. This AD will                     subsequent loss of control of the helicopter.
                                                                                                                                                           3775; or at http://
                                             not have a substantial direct effect on                 (c) Affected ADs                                      www.airbushelicopters.com/website/
                                             the States, on the relationship between                                                                       technical-expert/. You may review a copy of
                                             the national government and the States,                    This AD replaces AD 2013–16–14,
                                                                                                     Amendment 39–17552 (78 FR 54383,                      the service information at the FAA, Office of
                                             or on the distribution of power and                     September 4, 2013).                                   the Regional Counsel, Southwest Region,
                                             responsibilities among the various                                                                            10101 Hillwood Pkwy, Room 6N–321, Fort
                                             levels of government.                                   (d) Effective Date                                    Worth, TX 76177.
                                               For the reasons discussed above, I                      This AD becomes effective May 3, 2018.                 (2) The subject of this AD is addressed in
                                             certify that this AD:                                                                                         European Aviation Safety Agency (EASA) AD
                                                                                                     (e) Compliance                                        No. 2017–0002, dated January 9, 2017. You
                                               (1) Is not a ‘‘significant regulatory                    You are responsible for performing each            may view the EASA AD on the internet at
                                             action’’ under Executive Order 12866,                   action required by this AD within the                 http://www.regulations.gov in the AD Docket.
                                               (2) Is not a ‘‘significant rule’’ under               specified compliance time unless it has               (j) Subject
                                             DOT Regulatory Policies and Procedures                  already been accomplished prior to that time.
                                             (44 FR 11034, February 26, 1979),                                                                                Joint Aircraft Service Component (JASC)
                                                                                                     (f) Required Actions                                  Code: 6320 Main Rotor Gearbox.
                                               (3) Will not affect intrastate aviation
                                             in Alaska to the extent that a regulatory                  (1) Within 3 months, remove the oil filter         (k) Material Incorporated by Reference
                                                                                                     element and install a corrugated washer, P/
                                             distinction is required, and                            N 0630100377, in the middle of the filter                (1) The Director of the Federal Register
                                               (4) Will not have a significant                       housing of the housing upper part as                  approved the incorporation by reference
                                             economic impact, positive or negative,                  depicted in Figure 2 of ASB EC135–63A–017.            (IBR) of the service information listed in this
                                             on a substantial number of small entities                  (2) Within 5,150 hours time-in-service or at       paragraph under 5 U.S.C. 552(a) and 1 CFR
                                             under the criteria of the Regulatory                    the next main transmission repair or                  part 51.
                                             Flexibility Act.                                        overhaul, whichever occurs first, machine                (2) You must use this service information
                                                                                                     the main transmission housing upper part in           as applicable to do the actions required by
                                             List of Subjects in 14 CFR Part 39                      accordance with Annex A of ZF                         this AD, unless the AD specifies otherwise.
                                                                                                     Luftfahrttechnik GmbH Service Instruction                (3) The following service information was
                                               Air transportation, Aircraft, Aviation                                                                      approved for IBR on May 3, 2018.
                                                                                                     No. EC135FS108–1659–1009, dated
                                             safety, Incorporation by reference,                     September 14, 2010.                                      (i) Airbus Helicopters Alert Service
                                             Safety.                                                    (3) Do not install a main transmission             Bulletin EC135–63A–017, Revision 2, dated
                                                                                                     upper part, P/N 4649 301 034, 4649 301 067,           December 5, 2016.
                                             Adoption of the Amendment                                                                                        (ii) Reserved.
                                                                                                     or 4649 301 088, on any helicopter unless it
                                               Accordingly, under the authority                      has been modified as required by paragraphs              (4) The following service information was
                                             delegated to me by the Administrator,                   (f)(1) through (f)(2) of this AD.                     approved for IBR on October 9, 2013 (78 FR
                                             the FAA amends 14 CFR part 39 as                                                                              54383, September 4, 2013).
                                                                                                     (g) Credit for Previous Actions                          (i) ZF Luftfahrttechnik GmbH Service
                                             follows:
                                                                                                        Actions accomplished before the effective          Instruction No. EC135FS108–1659–1009,
                                                                                                     date of this AD in accordance with the                dated September 14, 2010.
                                             PART 39—AIRWORTHINESS
                                                                                                     procedures specified in Eurocopter Alert                 (ii) Reserved.
                                             DIRECTIVES                                                                                                       (5) For service information identified in
                                                                                                     Service Bulletin EC135–63A–017, Revision 0,
                                                                                                     dated October 11, 2010, are considered                this AD, contact Airbus Helicopters, 2701 N.
                                             ■ 1. The authority citation for part 39                 acceptable for compliance with the                    Forum Drive, Grand Prairie, TX 75052;
                                             continues to read as follows:                           corresponding actions specified in paragraph          telephone (972) 641–0000 or (800) 232–0323;
                                                 Authority: 49 U.S.C. 106(g), 40113, 44701.          (f) of this AD.                                       fax (972) 641–3775; or at http://
                                                                                                                                                           www.airbushelicopters.com/website/
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                                             § 39.13   [Amended]                                     (h) Alternative Methods of Compliance                 technical-expert/.
                                                                                                     (AMOCs)                                                  (6) You may view this service information
                                             ■ 2. The FAA amends § 39.13 by                            (1) The Manager, Safety Management                  at FAA, Office of the Regional Counsel,
                                             removing Airworthiness Directive (AD)                   Section, Rotorcraft Standards Branch, FAA,            Southwest Region, 10101 Hillwood Pkwy,
                                             2013–16–14, Amendment 39-17552 (78                      may approve AMOCs for this AD. Send your              Room 6N–321, Fort Worth, TX 76177. For
                                             FR 54383, September 4, 2013), and                       proposal to: Rao Edupuganti, Aviation Safety          information on the availability of this
                                             adding the following new AD:                            Engineer, Regulations and Policy Section,             material at the FAA, call (817) 222–5110.



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                                                               Federal Register / Vol. 83, No. 61 / Thursday, March 29, 2018 / Rules and Regulations                                        13383

                                               (7) You may view this service information             1200 New Jersey Avenue SE,                            Request the Removal of Multi-Segment
                                             that is incorporated by reference at the                Washington, DC 20590.                                 Couplings From All Airplanes
                                             National Archives and Records
                                             Administration (NARA). For information on               FOR FURTHER INFORMATION CONTACT:                         Paul Gryko recommended removal of
                                             the availability of this material at NARA, call         Thomas Teplik, Aerospace Engineer,                    multi-segment couplings from all
                                             (202) 741–6030, or go to: http://                       Wichita ACO Branch, FAA, 1801                         airplanes and replace with one-piece
                                             www.archives.gov/federal-register/cfr/ibr-              Airport Road, Room 100, Wichita,                      couplings. The commenter discussed
                                             locations.html.                                         Kansas 67209; phone: (316) 946–4196;                  other airplane models that have the
                                               Issued in Fort Worth, Texas, on March 19,             fax: (316) 946–4107; email:                           multi-segment coupling installed and
                                             2018.                                                   thomas.teplik@faa.gov.                                other AD actions affecting exhaust
                                             Scott A. Horn,                                                                                                tailpipe v-band couplings. The
                                                                                                     SUPPLEMENTARY INFORMATION:
                                             Deputy Director for Regulatory Operations,                                                                    commenter discussed that multi-
                                             Compliance & Airworthiness Division,                    Discussion                                            segment couplings may have different
                                             Aircraft Certification Service.                                                                               part numbers on different airplanes with
                                                                                                        We issued a supplemental notice of                 different torque values. Having one one-
                                             [FR Doc. 2018–06095 Filed 3–28–18; 8:45 am]             proposed rulemaking (SNPRM) to
                                             BILLING CODE 4910–13–P
                                                                                                                                                           piece coupling with the same torque
                                                                                                     amend 14 CFR part 39 by adding an AD                  value for use on all airplanes would
                                                                                                     that would apply to certain Textron                   benefit the industry. The commenter
                                                                                                     Aviation Inc. Models A36TC, B36TC,                    discussed the possibility of expanding
                                             DEPARTMENT OF TRANSPORTATION                            S35, V35, V35A, and V35B airplanes.                   the scope of this AD or issuing a
                                             Federal Aviation Administration                         The SNPRM published in the Federal                    different AD action.
                                                                                                     Register on November 8, 2017 (82 FR                      We do not agree with this comment.
                                             14 CFR Part 39                                          51782).                                               The FAA has determined that an unsafe
                                                                                                        We preceded the SNPRM with a                       condition exists on certain Models
                                             [Docket No. FAA–2017–0288; Product                      notice of proposed rulemaking (NPRM)                  A36TC, B36TC, S35, V35, V35A, and
                                             Identifier 2017–CE–007–AD; Amendment
                                                                                                     that published in the Federal Register                V35B airplanes. This AD addresses the
                                             39–19231; AD 2018–06–11]
                                                                                                     on April 12, 2017 (82 FR 17594). The                  unsafe condition on those specific
                                             RIN 2120–AA64                                           NPRM proposed to add a life limit to the              airplanes. Including the actions of this
                                                                                                     exhaust tailpipe v-band coupling                      AD on other airplane models that may
                                             Airworthiness Directives; Textron                       (clamp) and, if the coupling is removed               have the affected exhaust tailpipe v-
                                             Aviation Inc. Airplanes                                 for any reason before the life limit is               band coupling installed goes beyond the
                                             AGENCY:  Federal Aviation                               reached, require an inspection of the v-              scope of this AD. However, the FAA is
                                             Administration (FAA), DOT.                              band coupling before reinstalling. The                looking at the possibility of this unsafe
                                             ACTION: Final rule.                                     NPRM was prompted by a fatal accident                 condition affecting other airplanes.
                                                                                                     where the exhaust tailpipe fell off                      We have not changed this AD based
                                             SUMMARY:    We are adopting a new                       during takeoff.                                       on this comment.
                                             airworthiness directive (AD) for certain                   The SNPRM proposed to add to the                   Request To Expand the Scope of the AD
                                             Textron Aviation Inc. Models A36TC,                     applicability of the AD, add a life limit             to All Airplanes Equipped With
                                             B36TC, S35, V35, V35A, and V35B                         to the exhaust tailpipe v-band coupling               Continental TSIO–520 Engines
                                             airplanes. This AD was prompted by a                    (clamp) that attaches the exhaust
                                             fatal accident where the exhaust tailpipe                                                                       Dustin Todd requested we expand the
                                                                                                     tailpipe to the turbocharger, and require
                                             fell off during takeoff. This AD adds a                                                                       AD to all Textron airplanes equipped
                                                                                                     an annual visual inspection of the
                                             life limit to the exhaust tailpipe v-band                                                                     with TSIO–520 engines and to require
                                                                                                     exhaust tailpipe v-band coupling
                                             coupling (clamp) that attaches the                                                                            inspection of all areas of the
                                                                                                     (clamp). We are issuing this AD to
                                             exhaust tailpipe to the turbocharger and                                                                      turbocharger exhaust pipe. During a 50-
                                                                                                     address the unsafe condition on these
                                             requires an annual visual inspection of                                                                       hour oil change, he found a crack in the
                                                                                                     products.
                                             the exhaust tailpipe v-band coupling                                                                          turbocharger exhaust pipe. The crack
                                             (clamp). We are issuing this AD to                      Comments                                              appeared to have originated beneath the
                                             address the unsafe condition on these                                                                         coupling. Removal of the coupling is not
                                                                                                       We gave the public the opportunity to               required during 100-hour or annual
                                             products.                                               participate in developing this final rule.            inspections, so the crack could go
                                             DATES: This AD is effective May 3, 2018.                The following presents the comments                   undetected for hours or years.
                                             ADDRESSES:                                              received on the SNPRM and the FAA’s                     We disagree with this comment. The
                                                                                                     response to each comment.                             FAA has determined that an unsafe
                                             Examining the AD Docket
                                                                                                     Support of the AD Action                              condition exists on certain Models
                                               You may examine the AD docket on                                                                            A36TC, B36TC, S35, V35, V35A, and
                                             the internet at http://                                    Michelle Prengle agrees with the AD                V35B airplanes. This AD requires a life
                                             www.regulations.gov by searching for                    action. She states, ‘‘I am the daughter of            limit replacement and inspection of the
                                             and locating Docket No. FAA–2017–                       the pilot from which this AD is                       exhaust tailpipe v-band couplings as
                                             0288; or in person at Docket Operations                 prompted. My brothers and I lost our                  installed on those affected airplanes. To
                                             between 9 a.m. and 5 p.m., Monday                       father and stepmother in this accident.               include all Textron airplanes equipped
                                             through Friday, except Federal holidays.                I want people to know that my father                  with Continental TSIO–520 engines and
                                             The AD docket contains this final rule,                 loved to fly and believed that flying was             to require inspection of all areas of the
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                                             the regulatory evaluation, any                          the safest form of transportation. I wish             turbocharger exhaust pipe would be
                                             comments received, and other                            that this AD be implemented to honor                  beyond the scope of this AD. However,
                                             information. The address for Docket                     what my father truly believed, that                   the FAA is looking at the possibility of
                                             Operations (phone: 800–647–5527) is                     flying is the safest form of                          this unsafe condition affecting other
                                             U.S. Department of Transportation,                      transportation. I believe it will provide             airplanes.
                                             Docket Operations, M–30, West                           one more measure that will save lives in                We have not changed this AD based
                                             Building Ground Floor, Room W12–140,                    the future.’’                                         on this comment.


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Document Created: 2018-03-29 00:24:51
Document Modified: 2018-03-29 00:24:51
CategoryRegulatory Information
CollectionFederal Register
sudoc ClassAE 2.7:
GS 4.107:
AE 2.106:
PublisherOffice of the Federal Register, National Archives and Records Administration
SectionRules and Regulations
ActionFinal rule.
DatesThis AD is effective May 3, 2018.
ContactRao Edupuganti, Aviation Safety Engineer, Regulations and Policy Section, Rotorcraft Standards Branch, FAA, 10101 Hillwood Pkwy, Fort Worth, TX 76177; telephone (817) 222- 5110; email [email protected]
FR Citation83 FR 13380 
RIN Number2120-AA64
CFR AssociatedAir Transportation; Aircraft; Aviation Safety; Incorporation by Reference and Safety

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