83 FR 46895 - Airworthiness Directives; Bombardier, Inc., Airplanes
DEPARTMENT OF TRANSPORTATION
Federal Aviation Administration Federal Register Volume 83, Issue 180 (September 17, 2018)
Federal Aviation Administration
Federal Register Volume 83, Issue 180 (September 17, 2018)
| Page Range | 46895-46898 | |
| FR Document | 2018-19841 |
[Federal Register Volume 83, Number 180 (Monday, September 17, 2018)] [Proposed Rules] [Pages 46895-46898] From the Federal Register Online [www.thefederalregister.org] [FR Doc No: 2018-19841] ======================================================================= ----------------------------------------------------------------------- DEPARTMENT OF TRANSPORTATION Federal Aviation Administration 14 CFR Part 39 [Docket No. FAA-2018-0792; Product Identifier 2018-NM-090-AD] RIN 2120-AA64 Airworthiness Directives; Bombardier, Inc., Airplanes AGENCY: Federal Aviation Administration (FAA), DOT. ACTION: Notice of proposed rulemaking (NPRM). ----------------------------------------------------------------------- SUMMARY: We propose to adopt a new airworthiness directive (AD) for certain Bombardier, Inc., Model BD-100-1A10 airplanes. This proposed AD was [[Page 46896]] prompted by an incident of uncommanded nose wheel steering (NWS) in- service; subsequent investigation revealed that the steering selector valve (SSV) is susceptible to jamming in the open position due to particulate contamination of the hydraulic system. This proposed AD would require modifying the left-hand hydraulic system of the NWS control system and, for certain airplanes, torqueing the fittings on a certain tube assembly. We are proposing this AD to address the unsafe condition on these products. DATES: We must receive comments on this proposed AD by November 1, 20181. ADDRESSES: You may send comments, using the procedures found in 14 CFR 11.43 and 11.45, by any of the following methods:Federal eRulemaking Portal: Go to http://www.regulations.gov. Follow the instructions for submitting comments. Fax: 202-493-2251. Mail: U.S. Department of Transportation, Docket Operations, M-30, West Building Ground Floor, Room W12-140, 1200 New Jersey Avenue SE, Washington, DC 20590. Hand Delivery: Deliver to Mail address above between 9 a.m. and 5 p.m., Monday through Friday, except Federal holidays. For service information identified in this NPRM, contact Bombardier, Inc., 400 C[ocirc]te-Vertu Road West, Dorval, Qu[eacute]bec H4S 1Y9, Canada; telephone 514-855-5000; fax 514-855-7401; email [email protected]; internet http://www.bombardier.com. You may view this service information at the FAA, Transport Standards Branch, 2200 South 216th St., Des Moines, WA. For information on the availability of this material at the FAA, call 206-231-3195. Examining the AD Docket You may examine the AD docket on the internet at http://www.regulations.gov by searching for and locating Docket No. FAA-2018- 0792; 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 NPRM, the regulatory evaluation, any comments received, and other information. The street address for Docket Operations (phone: 800-647- 5527) is in the ADDRESSES section. Comments will be available in the AD docket shortly after receipt. FOR FURTHER INFORMATION CONTACT: Darren Gassetto, Aerospace Engineer, Mechanical Systems and Admin Services Section, FAA, New York ACO Branch, 1600 Stewart Avenue, Suite 410, Westbury, NY 11590; telephone 516-228-7323; fax 516-794-5531; email [email protected]. SUPPLEMENTARY INFORMATION: Comments Invited We invite you to send any written relevant data, views, or arguments about this proposal. Send your comments to an address listed under the ADDRESSES section. Include ``Docket No. FAA-2018-0792; Product Identifier 2018-NM-090-AD'' at the beginning of your comments. We specifically invite comments on the overall regulatory, economic, environmental, and energy aspects of this NPRM. We will consider all comments received by the closing date and may amend this NPRM because of those comments. We will post all comments we receive, without change, to http://www.regulations.gov, including any personal information you provide. We will also post a report summarizing each substantive verbal contact we receive about this NPRM. Discussion Transport Canada Civil Aviation (TCCA), which is the aviation authority for Canada, has issued Canadian AD CF-2018-11, dated April 5, 2018 (referred to after this as the Mandatory Continuing Airworthiness Information, or ``the MCAI''), to correct an unsafe condition for certain Bombardier, Inc., Model BD-100-1A10 airplanes. The MCAI states: An incident of uncommanded nose wheel steering occurred in- service. Subsequent investigation revealed that the steering selector valve (SSV) was vulnerable to jamming in the open position due to particulate contamination of the hydraulic system. If not corrected, a jam of the SSV, following the independent failure of a second component of the nose wheel steering system, could result in uncommanded nose wheel steering and a risk of runway excursion. This [Canadian] AD requires the incorporation of a hydraulic fluid filter in the line supplying pressure from the direct current motor pump to the nose wheel steering system [and, for certain airplanes, torqueing the fittings on a certain tube assembly]. You may examine the MCAI in the AD docket on the internet at http://www.regulations.gov by searching for and locating Docket No. FAA-2018- 0792. Related Service Information Under 1 CFR Part 51 Bombardier has issued Service Bulletins 100-32-31, Revision 03; and 350-32-007, Revision 03; both dated March 27, 2018. This service information describes procedures for modifying the left-hand hydraulic system of the NWS control system by installing a hydraulic filter into the hydraulic line between the direct current motor pump and the SSV and, for certain airplanes, torqueing the fittings on a certain tube assembly. These documents are distinct since they apply to different airplane configurations. 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. FAA's Determination This product has been approved by the aviation authority of another country, and is approved for operation in the United States. Pursuant to our bilateral agreement with the State of Design Authority, we have been notified of the unsafe condition described in the MCAI and service information referenced above. We are proposing this AD because we evaluated all the relevant information and determined the unsafe condition described previously is likely to exist or develop on other products of the same type design. Proposed Requirements of This NPRM This proposed AD would require accomplishing the actions specified in the service information described previously. Costs of Compliance We estimate that this proposed AD affects 534 airplanes of U.S. registry. We estimate the following costs to comply with this proposed AD: Estimated Costs ---------------------------------------------------------------------------------------------------------------- Cost per Cost on U.S. Labor cost Parts cost product operators ---------------------------------------------------------------------------------------------------------------- 25 work-hours x $85 per hour = $2,125........................ $13,196 $15,321 $8,181,414 ---------------------------------------------------------------------------------------------------------------- [[Page 46897]] According to the manufacturer, some or all of the costs of this proposed AD may be covered under warranty, thereby reducing the cost impact on affected individuals. We do not control warranty coverage for affected individuals. As a result, we have included all known 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 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. This proposed AD is issued in accordance with authority delegated by the Executive Director, Aircraft Certification Service, as authorized by FAA Order 8000.51C. In accordance with that order, issuance of ADs is normally a function of the Compliance and Airworthiness Division, but during this transition period, the Executive Director has delegated the authority to issue ADs applicable to transport category airplanes to the Director of the System Oversight Division. Regulatory Findings We determined that this proposed AD would not have federalism implications under Executive Order 13132. This proposed AD would 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 this proposed regulation: 1. Is not a ``significant regulatory action'' under Executive Order 12866; 2. Is not a ``significant rule'' under the DOT Regulatory Policies and Procedures (44 FR 11034, February 26, 1979); 3. Will not affect intrastate aviation in Alaska; 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. The Proposed Amendment Accordingly, under the authority delegated to me by the Administrator, the FAA proposes to amend 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 adding the following new airworthiness directive (AD): Bombardier, Inc.: Docket No. FAA-2018-0792; Product Identifier 2018- NM-090-AD. (a) Comments Due Date We must receive comments by November 1, 2018. (b) Affected ADs None. (c) Applicability This AD applies to Bombardier, Inc., Model BD-100-1A10 airplanes, certificated in any category, serial numbers 20002 through 20744 inclusive. (d) Subject Air Transport Association (ATA) of America Code 32, Landing Gear. (e) Reason This AD was prompted by an incident of uncommanded nose wheel steering (NWS) in-service; subsequent investigation revealed that the steering selector valve (SSV) is susceptible to jamming in the open position due to particulate contamination of the hydraulic system. We are issuing this AD to address jamming of the SSV after independent failure of a second component of the NWS control system, which could result in uncommanded NWS and a possible runway excursion. (f) Compliance Comply with this AD within the compliance times specified, unless already done. (g) Modify Hydraulic System Except for airplanes identified in paragraph (h) of this AD: Within 2,000 flight cycles or 60 months after the effective date of this AD, whichever occurs first, modify the left-hand hydraulic system of the NWS control system by installing a hydraulic filter into the hydraulic line between the direct current motor pump and the SSV, in accordance with the Accomplishment Instructions of Bombardier Service Bulletin 100-32-31, Revision 03; or Bombardier Service Bulletin 350-32-007, Revision 03; both dated March 27, 2018; as applicable. (h) Additional Action for Certain Airplanes For airplanes that have incorporated Bombardier Service Bulletin 100-32-31, dated January 4, 2018; Bombardier Service Bulletin 100- 32-31, Revision 01, dated January 23, 2018; Bombardier Service Bulletin 100-32-31, Revision 02, dated March 14, 2018; Bombardier Service Bulletin 350-32-007, dated January 4, 2018; Bombardier Service Bulletin 350-32-007, Revision 01, dated January 23, 2018; or Bombardier Service Bulletin 350-32-007, Revision 02, dated March 14, 2018; as applicable, as of the effective date of this AD: Within 50 flight hours after the effective date of this AD, torque the fittings on any tube assembly having part number K1000070395-401, in accordance with the ``Retroactive Action'' instructions of Bombardier Service Bulletin 100-32-31, Revision 03, or Bombardier Service Bulletin 350-32-007, Revision 03, both dated March 27, 2018, as applicable. (i) Other FAA AD Provisions The following provisions also apply to this AD: (1) Alternative Methods of Compliance (AMOCs): The Manager, New York 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 your request to your principal inspector or local Flight Standards District Office, as appropriate. If sending information directly to the manager of the certification office, send it to ATTN: Program Manager, Continuing Operational Safety, FAA, New York ACO Branch, 1600 Stewart Avenue, Suite 410, Westbury, NY 11590; telephone 516-228-7300; fax 516-794-5531. Before using any approved AMOC, notify your appropriate principal inspector, or lacking a principal inspector, the manager of the local flight standards district office/certificate holding district office. (2) Contacting the Manufacturer: For any requirement in this AD to obtain corrective actions from a manufacturer, the action must be accomplished using a method approved by the Manager, New York ACO Branch, FAA; or Transport Canada Civil Aviation (TCCA); or Bombardier, Inc.'s TCCA Design Approval Organization (DAO). If approved by the DAO, the approval must include the DAO-authorized signature. (j) Related Information (1) Refer to Mandatory Continuing Airworthiness Information (MCAI) Canadian AD CF-2018-11, dated April 5, 2018, for related information. This MCAI may be found in the AD docket on the internet at http://www.regulations.gov by searching for and locating Docket No. FAA-2018-0792. (2) For more information about this AD, contact Darren Gassetto, Aerospace Engineer, Mechanical Systems and Admin. Services Section, FAA, New York ACO Branch, 1600 [[Page 46898]] Stewart Avenue, Suite 410, Westbury, NY 11590; telephone 516-228- 7323; fax 516-794-5531; email [email protected]. (3) For service information identified in this AD, contact Bombardier, Inc., 400 C[ocirc]te-Vertu Road West, Dorval, Qu[eacute]bec H4S 1Y9, Canada; telephone 514-855-5000; fax 514-855- 7401; email [email protected]; internet http://www.bombardier.com. You may view this service information at the FAA, Transport Standards Branch, 2200 South 216th St., Des Moines, WA. For information on the availability of this material at the FAA, call 206-231-3195. Issued in Des Moines, Washington, on August 30, 2018. Jeffrey E. Duven, Director, System Oversight Division, Aircraft Certification Service. [FR Doc. 2018-19841 Filed 9-14-18; 8:45 am] BILLING CODE 4910-13-P
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Material misalignment means (b) The Enterprises must submit, in a be reported promptly to FHFA in
divergence of at least three percentage timely manner, a written report to FHFA writing.
points in the one-month CPR for a on any material misalignment (c) FHFA Monitoring. FHFA will
cohort, or a prolonged misalignment (as describing, at a minimum, the likely monitor changes to covered programs,
determined by FHFA), or divergence cause of material misalignment and the policies, and practices for effects on
greater than the prevailing threshold set Enterprises’ plan to address the material cash flows to TBA-eligible MBS
by FHFA, per § 1248.5(c). misalignment. investors.
Misalign or misalignment means (c) FHFA will temporarily adjust the
diverge by or a divergence of two § 1248.7 Remedial actions.
percentages in the definitions of align,
percentage points or more (or more than misalignment, and material (a) Based on its review of reports
the prevailing percentage threshold set misalignment, if FHFA determines that submitted by the Enterprises and reports
by FHFA, per § 1248.5(c)), in the one- market conditions dictate that an issued by independent parties, FHFA
month CPR for a cohort. adjustment is appropriate. may:
Mortgage-backed security or MBS (1) In adjusting the percentages, FHFA (1) Require an Enterprise to undertake
means securities collateralized by a pool will consider: additional analysis, monitoring, or
or pools of single-family mortgages. (i) The prevailing level and volatility reporting to further the purposes of this
Supers means single-class re- of interest rates, part.
securitizations of UMBS. (2) Require an Enterprise to change
To-Be-Announced Eligible Mortgage- (ii) The level of credit risk embedded
in the Enterprises’ TBA-eligible MBS, covered programs, policies, and
Backed Security (TBA-Eligible MBS) practices that FHFA determines may
means Enterprise MBS (including and
conflict with the purposes of this part.
Freddie Mac Participation Certificates, (iii) Such other factors as FHFA may,
(b) To address material misalignment,
Giants, MBS, UMBS, and Supers; and in consultation with the Enterprises,
FHFA may require additional and
Fannie Mae MBS, Megas, UMBS, and determine to be appropriate to promote
expedient Enterprise actions based on:
Supers) that meet criteria such that the market confidence in the alignment of
(1) Consultation with the Enterprises
market considers them sufficiently cash flows to TBA-eligible MBS
regarding the cause of the material
fungible to be forward traded in the investors and to foster the efficiency and
misalignment;
TBA market. liquidity of the secondary mortgage
(2) Review of Enterprise compliance
Uniform Mortgage Backed Security or market.
with previously agreed upon or FHFA-
UMBS means a single-class MBS backed (2) If adjusted percentages remain in required actions; and
by fixed-rate mortgage loans on 1–4 unit effect for six months or more, FHFA will (3) Review of the effectiveness of such
(single-family) properties issued by amend this Part’s definitions by Federal actions to determine whether they are
either Enterprise which has the same Register Notice, with opportunity for achieving the purpose of this part.
characteristics (such as payment delay, public comment.
pooling prefixes, and minimum pool § 1248.8 De minimis exception.
§ 1248.6 Covered programs, policies, and
submission amounts) regardless of practices. FHFA may exclude from the
which Enterprise is the issuer. requirements of this Part, covered
(a) Enterprise Change Management
programs, policies, or practices that
§ 1248.2 Purpose. Processes. Each Enterprise must
solely affect cohorts with unpaid
The purpose of this part is to: establish and maintain an Enterprise-
principal balances below $5 billion.
(a) Enhance liquidity in the MBS wide governance process to ensure that
marketplace, and to that end, enable any proposed changes to covered Dated: September 11, 2018.
adoption of the UMBS, by achieving programs, policies, and practices that Melvin L. Watt,
sufficient similarity of cash flows on may cause misalignment are identified, Director, Federal Housing Finance Agency.
cohorts of TBA-eligible MBS such that reviewed, escalated, and submitted, in [FR Doc. 2018–20124 Filed 9–14–18; 8:45 am]
investors will accept delivery of UMBS writing, to FHFA for review and BILLING CODE 8070–01–P
from either issuer in settlement of trades approval in a timely manner.
on the TBA market. (1) Submissions to FHFA must
(b) Provide transparency and include projections for prepayment rates DEPARTMENT OF TRANSPORTATION
durability into the process for creating and for removals of delinquent loans
alignment. under a range of interest rate Federal Aviation Administration
environments and assumptions
§ 1248.3 General alignment. concerning borrower defaults. 14 CFR Part 39
Each Enterprise’s covered programs, (2) Submissions to FHFA must
policies, and practices must align with [Docket No. FAA–2018–0792; Product
include an analysis of the impact on Identifier 2018–NM–090–AD]
the other Enterprise’s covered programs, borrower demand and impact on the
policies, and practices. cheapest-to-deliver security down to the RIN 2120–AA64
§ 1248.4 Enterprise consultation. decile.
Airworthiness Directives; Bombardier,
When and in the manner instructed (3) Submissions to FHFA must
Inc., Airplanes
by FHFA, the Enterprises shall consult include an analysis of identified risks
with each other on any issues, including and may include potential mitigating AGENCY: Federal Aviation
daltland on DSKBBV9HB2PROD with PROPOSALS
changes to covered programs, policies, actions. Administration (FAA), DOT.
and practices that potentially or actually (b) Enterprise Monitoring. Any ACTION: Notice of proposed rulemaking
cause cash flows to TBA-eligible MBS changes to covered programs, policies, (NPRM).
investors to misalign. and practices that an Enterprise
reasonably should identify as having SUMMARY: We propose to adopt a new
§ 1248.5 Misalignment. been a likely cause of an unanticipated airworthiness directive (AD) for certain
(a) The Enterprises must report any divergence between Enterprises in the Bombardier, Inc., Model BD–100–1A10
misalignment to FHFA. one month CPR of the same cohort shall airplanes. This proposed AD was
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prompted by an incident of ADDRESSES section. Comments will be steering system [and, for certain airplanes,
uncommanded nose wheel steering available in the AD docket shortly after torqueing the fittings on a certain tube
(NWS) in-service; subsequent receipt. assembly].
investigation revealed that the steering FOR FURTHER INFORMATION CONTACT: You may examine the MCAI in the
selector valve (SSV) is susceptible to Darren Gassetto, Aerospace Engineer, AD docket on the internet at http://
jamming in the open position due to Mechanical Systems and Admin www.regulations.gov by searching for
particulate contamination of the Services Section, FAA, New York ACO and locating Docket No. FAA–2018–
hydraulic system. This proposed AD Branch, 1600 Stewart Avenue, Suite 0792.
would require modifying the left-hand 410, Westbury, NY 11590; telephone
hydraulic system of the NWS control 516–228–7323; fax 516–794–5531; email Related Service Information Under 1
system and, for certain airplanes, 9-avs-nyaco-cos@faa.gov. CFR Part 51
torqueing the fittings on a certain tube SUPPLEMENTARY INFORMATION: Bombardier has issued Service
assembly. We are proposing this AD to
Comments Invited Bulletins 100–32–31, Revision 03; and
address the unsafe condition on these
350–32–007, Revision 03; both dated
products. We invite you to send any written
March 27, 2018. This service
DATES: We must receive comments on
relevant data, views, or arguments about
information describes procedures for
this proposed AD by November 1, this proposal. Send your comments to
modifying the left-hand hydraulic
20181. an address listed under the ADDRESSES
system of the NWS control system by
section. Include ‘‘Docket No. FAA–
ADDRESSES: You may send comments, installing a hydraulic filter into the
2018–0792; Product Identifier 2018–
using the procedures found in 14 CFR hydraulic line between the direct
NM–090–AD’’ at the beginning of your
11.43 and 11.45, by any of the following current motor pump and the SSV and,
comments. We specifically invite
methods: for certain airplanes, torqueing the
comments on the overall regulatory,
• Federal eRulemaking Portal: Go to economic, environmental, and energy
fittings on a certain tube assembly.
http://www.regulations.gov. Follow the These documents are distinct since they
aspects of this NPRM. We will consider
instructions for submitting comments. apply to different airplane
all comments received by the closing
• Fax: 202–493–2251. date and may amend this NPRM
configurations.
• Mail: U.S. Department of This service information is reasonably
because of those comments.
Transportation, Docket Operations, We will post all comments we available because the interested parties
M–30, West Building Ground Floor, receive, without change, to http:// have access to it through their normal
Room W12–140, 1200 New Jersey www.regulations.gov, including any course of business or by the means
Avenue SE, Washington, DC 20590. personal information you provide. We identified in the ADDRESSES section.
• Hand Delivery: Deliver to Mail
will also post a report summarizing each FAA’s Determination
address above between 9 a.m. and 5
substantive verbal contact we receive
p.m., Monday through Friday, except
about this NPRM. This product has been approved by
Federal holidays.
For service information identified in the aviation authority of another
Discussion
this NPRM, contact Bombardier, Inc., country, and is approved for operation
Transport Canada Civil Aviation in the United States. Pursuant to our
400 Côte-Vertu Road West, Dorval, (TCCA), which is the aviation authority
Québec H4S 1Y9, Canada; telephone bilateral agreement with the State of
for Canada, has issued Canadian AD Design Authority, we have been notified
514–855–5000; fax 514–855–7401; email CF–2018–11, dated April 5, 2018
thd.crj@aero.bombardier.com; internet of the unsafe condition described in the
(referred to after this as the Mandatory MCAI and service information
http://www.bombardier.com. You may Continuing Airworthiness Information,
view this service information at the referenced above. We are proposing this
or ‘‘the MCAI’’), to correct an unsafe AD because we evaluated all the
FAA, Transport Standards Branch, 2200 condition for certain Bombardier, Inc.,
South 216th St., Des Moines, WA. For relevant information and determined
Model BD–100–1A10 airplanes. The the unsafe condition described
information on the availability of this MCAI states:
material at the FAA, call 206–231–3195. previously is likely to exist or develop
An incident of uncommanded nose wheel on other products of the same type
Examining the AD Docket steering occurred in-service. Subsequent design.
investigation revealed that the steering
You may examine the AD docket on selector valve (SSV) was vulnerable to Proposed Requirements of This NPRM
the internet at http:// jamming in the open position due to
www.regulations.gov by searching for particulate contamination of the hydraulic This proposed AD would require
and locating Docket No. FAA–2018– system. If not corrected, a jam of the SSV, accomplishing the actions specified in
0792; or in person at Docket Operations following the independent failure of a second the service information described
between 9 a.m. and 5 p.m., Monday component of the nose wheel steering previously.
through Friday, except Federal holidays. system, could result in uncommanded nose
wheel steering and a risk of runway Costs of Compliance
The AD docket contains this NPRM, the
excursion.
regulatory evaluation, any comments This [Canadian] AD requires the We estimate that this proposed AD
received, and other information. The incorporation of a hydraulic fluid filter in the affects 534 airplanes of U.S. registry. We
street address for Docket Operations line supplying pressure from the direct estimate the following costs to comply
daltland on DSKBBV9HB2PROD with PROPOSALS
(phone: 800–647–5527) is in the current motor pump to the nose wheel with this proposed AD:
ESTIMATED COSTS
Cost per Cost on U.S.
Labor cost Parts cost product operators
25 work-hours × $85 per hour = $2,125 ..................................................................................... $13,196 $15,321 $8,181,414
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According to the manufacturer, some on a substantial number of small entities current motor pump and the SSV, in
or all of the costs of this proposed AD under the criteria of the Regulatory accordance with the Accomplishment
may be covered under warranty, thereby Flexibility Act. Instructions of Bombardier Service Bulletin
100–32–31, Revision 03; or Bombardier
reducing the cost impact on affected
List of Subjects in 14 CFR Part 39 Service Bulletin 350–32–007, Revision 03;
individuals. We do not control warranty both dated March 27, 2018; as applicable.
coverage for affected individuals. As a Air transportation, Aircraft, Aviation
result, we have included all known safety, Incorporation by reference, (h) Additional Action for Certain Airplanes
costs in our cost estimate. Safety. For airplanes that have incorporated
Bombardier Service Bulletin 100–32–31,
Authority for This Rulemaking The Proposed Amendment dated January 4, 2018; Bombardier Service
Title 49 of the United States Code Accordingly, under the authority Bulletin 100–32–31, Revision 01, dated
delegated to me by the Administrator, January 23, 2018; Bombardier Service
specifies the FAA’s authority to issue
the FAA proposes to amend 14 CFR part Bulletin 100–32–31, Revision 02, dated
rules on aviation safety. Subtitle I, March 14, 2018; Bombardier Service Bulletin
section 106, describes the authority of 39 as follows: 350–32–007, dated January 4, 2018;
the FAA Administrator. Subtitle VII: Bombardier Service Bulletin 350–32–007,
Aviation Programs, describes in more PART 39—AIRWORTHINESS Revision 01, dated January 23, 2018; or
detail the scope of the Agency’s DIRECTIVES Bombardier Service Bulletin 350–32–007,
authority. Revision 02, dated March 14, 2018; as
■ 1. The authority citation for part 39 applicable, as of the effective date of this AD:
We are issuing this rulemaking under
continues to read as follows: Within 50 flight hours after the effective date
the authority described in Subtitle VII,
Authority: 49 U.S.C. 106(g), 40113, 44701. of this AD, torque the fittings on any tube
Part A, Subpart III, Section 44701: assembly having part number K1000070395–
‘‘General requirements.’’ Under that § 39.13 [Amended] 401, in accordance with the ‘‘Retroactive
section, Congress charges the FAA with Action’’ instructions of Bombardier Service
■ 2. The FAA amends § 39.13 by adding
promoting safe flight of civil aircraft in Bulletin 100–32–31, Revision 03, or
the following new airworthiness
air commerce by prescribing regulations Bombardier Service Bulletin 350–32–007,
directive (AD): Revision 03, both dated March 27, 2018, as
for practices, methods, and procedures
the Administrator finds necessary for Bombardier, Inc.: Docket No. FAA–2018– applicable.
safety in air commerce. This regulation 0792; Product Identifier 2018–NM–090–
(i) Other FAA AD Provisions
is within the scope of that authority AD.
The following provisions also apply to this
because it addresses an unsafe condition (a) Comments Due Date AD:
that is likely to exist or develop on We must receive comments by November (1) Alternative Methods of Compliance
products identified in this rulemaking 1, 2018. (AMOCs): The Manager, New York ACO
action. Branch, FAA, has the authority to approve
This proposed AD is issued in (b) Affected ADs AMOCs for this AD, if requested using the
accordance with authority delegated by None. procedures found in 14 CFR 39.19. In
the Executive Director, Aircraft accordance with 14 CFR 39.19, send your
(c) Applicability request to your principal inspector or local
Certification Service, as authorized by This AD applies to Bombardier, Inc., Flight Standards District Office, as
FAA Order 8000.51C. In accordance Model BD–100–1A10 airplanes, certificated appropriate. If sending information directly
with that order, issuance of ADs is in any category, serial numbers 20002 to the manager of the certification office,
normally a function of the Compliance through 20744 inclusive. send it to ATTN: Program Manager,
and Airworthiness Division, but during Continuing Operational Safety, FAA, New
(d) Subject York ACO Branch, 1600 Stewart Avenue,
this transition period, the Executive
Director has delegated the authority to Air Transport Association (ATA) of Suite 410, Westbury, NY 11590; telephone
issue ADs applicable to transport America Code 32, Landing Gear. 516–228–7300; fax 516–794–5531. Before
using any approved AMOC, notify your
category airplanes to the Director of the (e) Reason
appropriate principal inspector, or lacking a
System Oversight Division. This AD was prompted by an incident of principal inspector, the manager of the local
Regulatory Findings uncommanded nose wheel steering (NWS) flight standards district office/certificate
in-service; subsequent investigation revealed holding district office.
We determined that this proposed AD that the steering selector valve (SSV) is (2) Contacting the Manufacturer: For any
would not have federalism implications susceptible to jamming in the open position requirement in this AD to obtain corrective
under Executive Order 13132. This due to particulate contamination of the actions from a manufacturer, the action must
proposed AD would not have a hydraulic system. We are issuing this AD to be accomplished using a method approved
substantial direct effect on the States, on address jamming of the SSV after by the Manager, New York ACO Branch,
independent failure of a second component FAA; or Transport Canada Civil Aviation
the relationship between the national
of the NWS control system, which could (TCCA); or Bombardier, Inc.’s TCCA Design
Government and the States, or on the result in uncommanded NWS and a possible Approval Organization (DAO). If approved by
distribution of power and runway excursion. the DAO, the approval must include the
responsibilities among the various DAO-authorized signature.
levels of government. (f) Compliance
For the reasons discussed above, I Comply with this AD within the (j) Related Information
certify this proposed regulation: compliance times specified, unless already (1) Refer to Mandatory Continuing
1. Is not a ‘‘significant regulatory done. Airworthiness Information (MCAI) Canadian
daltland on DSKBBV9HB2PROD with PROPOSALS
action’’ under Executive Order 12866; AD CF–2018–11, dated April 5, 2018, for
(g) Modify Hydraulic System related information. This MCAI may be
2. Is not a ‘‘significant rule’’ under the
Except for airplanes identified in found in the AD docket on the internet at
DOT Regulatory Policies and Procedures paragraph (h) of this AD: Within 2,000 flight http://www.regulations.gov by searching for
(44 FR 11034, February 26, 1979); cycles or 60 months after the effective date and locating Docket No. FAA–2018–0792.
3. Will not affect intrastate aviation in of this AD, whichever occurs first, modify the (2) For more information about this AD,
Alaska; and left-hand hydraulic system of the NWS contact Darren Gassetto, Aerospace Engineer,
4. Will not have a significant control system by installing a hydraulic filter Mechanical Systems and Admin. Services
economic impact, positive or negative, into the hydraulic line between the direct Section, FAA, New York ACO Branch, 1600
VerDate Sep<11>2014 16:40 Sep 14, 2018 Jkt 244001 PO 00000 Frm 00012 Fmt 4702 Sfmt 4702 E:\FR\FM\17SEP1.SGM 17SEP1](https://thefederalregister.org/doc/83_FR_47075/page/3.svg)
![46898 Federal Register / Vol. 83, No. 180 / Monday, September 17, 2018 / Proposed Rules
Stewart Avenue, Suite 410, Westbury, NY 11.43 and 11.45, by any of the following We will post all comments we
11590; telephone 516–228–7323; fax 516– methods: receive, without change, to http://
794–5531; email 9-avs-nyaco-cos@faa.gov. • Federal eRulemaking Portal: Go to www.regulations.gov, including any
(3) For service information identified in http://www.regulations.gov. Follow the personal information you provide. We
this AD, contact Bombardier, Inc., 400 Côte-
Vertu Road West, Dorval, Québec H4S 1Y9,
instructions for submitting comments. will also post a report summarizing each
Canada; telephone 514–855–5000; fax 514– • Fax: 202–493–2251. substantive verbal contact we receive
855–7401; email thd.crj@ • Mail: U.S. Department of about this proposed AD.
aero.bombardier.com; internet http:// Transportation, Docket Operations, M–
Discussion
www.bombardier.com. You may view this 30, West Building Ground Floor, Room
service information at the FAA, Transport W12–140, 1200 New Jersey Avenue SE, We issued AD 2015–20–04,
Standards Branch, 2200 South 216th St., Des Washington, DC 20590. Amendment 39–18282 (80 FR 61717,
Moines, WA. For information on the • Hand Delivery: Deliver to Mail October 14, 2015), (‘‘AD 2015–20–04’’),
availability of this material at the FAA, call address above between 9 a.m. and 5 for certain P&WC PT6B–37A turboshaft
206–231–3195.
p.m., Monday through Friday, except engines. AD 2015–20–04 requires initial
Issued in Des Moines, Washington, on Federal holidays. and repetitive inspections until
August 30, 2018. For service information identified in replacement of the No. 10 bearing, and
Jeffrey E. Duven, this NPRM, contact Pratt & Whitney eventual replacement of the No. 9
Director, System Oversight Division, Aircraft Canada Corp., 1000 Marie-Victorin, bearing, both located in the engine RGB
Certification Service. Longueuil, Quebec, Canada, J4G 1A1; assembly. AD 2015–20–04 resulted from
[FR Doc. 2018–19841 Filed 9–14–18; 8:45 am] phone: 800–268–8000; fax: 450–647– reports of incorrect engine torque for
BILLING CODE 4910–13–P 2888; website: http://www.pwc.ca. You PT6B–37A engines. We issued AD
may view this service information at the 2015–20–04 to prevent axial movement
FAA, Engine & Propeller Standards at the No. 10 bearing position in the
DEPARTMENT OF TRANSPORTATION Branch, 1200 District Avenue, engine RGB assembly, which could
Burlington, MA 01803. For information result in engine overtorque, failure of
Federal Aviation Administration on the availability of this material at the the engine, in-flight shutdown, and loss
FAA, call 781–238–7759. of the helicopter.
14 CFR Part 39
Examining the AD Docket Actions Since AD 2015–20–04 Was
[Docket No. FAA–2018–0739; Product
You may examine the AD docket on Issued
Identifier 2015–NE–07–AD]
the internet at http:// Since we issued AD 2015–20–04,
RIN 2120–AA64
www.regulations.gov by searching for P&WC has determined that the
Airworthiness Directives; Pratt & and locating Docket No. FAA–2018– repetitive inspection of the bearings in
Whitney Canada Corp. Turboshaft 0739; or in person at the Docket P&WC Service Bulletin (SB) PT6B–72–
Engines Operations between 9 a.m. and 5 p.m., 39095, Revision No. 3, dated December
Monday through Friday, except Federal 29, 2014, has an associated risk of
AGENCY: Federal Aviation holidays. The AD docket contains this gearbox damage or contamination.
Administration (FAA), DOT. NPRM, the mandatory continuing P&WC also determined that the bearing
ACTION: Notice of proposed rulemaking airworthiness information, regulatory installation in P&WC SB No. PT6B–72–
(NPRM). evaluation, any comments received, and 39092, Revision No. 4, dated December
other information. The street address for 29, 2014, as required by AD 2015–20–
SUMMARY: We propose to supersede Docket Operations (phone: 800–647– 04, does not adequately address the
airworthiness directive (AD) 2015–20– 5527) is listed above. Comments will be issue of bearing axial movement.
04, which applies to certain Pratt & available in the AD docket shortly after
Whitney Canada Corp. (P&WC) PT6B– receipt. Related Service Information Under 1
37A turboshaft engines. AD 2015–20–04 CFR Part 51
FOR FURTHER INFORMATION CONTACT:
requires initial and repetitive Barbara Caufield, Aerospace Engineer, We reviewed P&WC SB No. PT6B–72–
inspections until replacement of the No. ECO Branch, FAA, 1200 District 39108, dated September 30, 2016. The
10 bearing, and eventual replacement of Avenue, Burlington, MA 01803; phone: SB describes procedures for replacing
the No. 9 bearing, both located in the 781–238–7146; fax: 781–238–7199; affected bearings. This service
engine reduction gearbox (RGB) email: barbara.caufield@faa.gov. information is reasonably available
assembly. Since we issued AD 2015–20– because the interested parties have
SUPPLEMENTARY INFORMATION:
04, P&WC has determined that the access to it through their normal course
repetitive inspection of the bearings has Comments Invited of business or by the means identified
an associated risk of gearbox damage or We invite you to send any written in the ADDRESSES section.
contamination and that the bearing relevant data, views, or arguments about
installation required by AD 2015–20–04 Other Related Service Information
this proposed AD. Send your comments
does not adequately address the issue of to an address listed under the We reviewed P&WC SB No. PT6B–72–
bearing axial movement. This proposed ADDRESSES section. Include ‘‘Docket No. 39092, Revision No. 4, dated December
AD would require removal from service FAA–2018–0739; Product Identifier 29, 2014. The service information
and replacement of the No. 9 and No.
daltland on DSKBBV9HB2PROD with PROPOSALS
2015–NE–07–AD’’ at the beginning of describes procedures for removing
10 position bearings. We are proposing your comments. We specifically invite affected bearings.
this AD to address the unsafe condition comments on the overall regulatory,
on these products. FAA’s Determination
economic, environmental, and energy
DATES: We must receive comments on aspects of this NPRM. We will consider We are proposing this AD because we
this proposed AD by November 1, 2018. all comments received by the closing evaluated all the relevant information
ADDRESSES: You may send comments, date and may amend this NPRM and determined the unsafe condition
using the procedures found in 14 CFR because of those comments. described previously is likely to exist or
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Document Created: 2018-09-15 01:37:32
Document Modified: 2018-09-15 01:37:32
| Category | Regulatory Information | |
| Collection | Federal Register | |
| sudoc Class | AE 2.7: GS 4.107: AE 2.106: | |
| Publisher | Office of the Federal Register, National Archives and Records Administration | |
| Section | Proposed Rules | |
| Action | Notice of proposed rulemaking (NPRM). | |
| Dates | We must receive comments on this proposed AD by November 1, 20181. | |
| Contact | Darren Gassetto, Aerospace Engineer, Mechanical Systems and Admin Services Section, FAA, New York ACO Branch, 1600 Stewart Avenue, Suite 410, Westbury, NY 11590; telephone 516-228-7323; fax 516-794-5531; email [email protected] | |
| FR Citation | 83 FR 46895 | |
| RIN Number | 2120-AA64 | |
| CFR Associated | Air Transportation; Aircraft; Aviation Safety; Incorporation by Reference and Safety |
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