Airworthiness Directives; Bombardier, Inc., Airplanes, 18704-18707 [2019-08915]
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18704
Federal Register / Vol. 84, No. 85 / Thursday, May 2, 2019 / Rules and Regulations
ii. The upper-neck compression force
at the O.C. location must be less than
405 lbs (1,800 N).
iii. The upper-neck bending torque
about the ATD x-axis at the O.C.
location must be less than 1,018 in-lbs
(115 Nm).
iv. The upper-neck resultant shear
force at the O.C. location must be less
than 186 lbs (825 N).
g. Occupant (ES–2re ATD) retention:
The pelvic restraint must remain on the
ES–2re ATD’s pelvis during the impact
and rebound phases of the test. The
upper-torso restraint straps (if present)
must remain on the ATD’s shoulder
during the impact.
h. Occupant (ES–2re ATD) support:
i. Pelvis excursion: The load-bearing
portion of the bottom of the ATD pelvis
must not translate beyond the edges of
its seat’s bottom seat-cushion
supporting structure.
ii. Upper-torso support: The lateral
flexion of the ATD torso must not
exceed 40 degrees from the normal
upright position during the impact.
3. For seats with a shoulder and legflail airbag system, the shoulder and legflail airbag system must deploy and
provide protection under crash
conditions where it is necessary to
prevent serious injury. The means of
protection must take into consideration
a range of stature from a 2-year-old child
to a 95th percentile male. The airbag
systems in the shoulder belts must
provide a consistent approach to energy
absorption throughout that range of
occupants. At some buttock popliteal
length and effective seat-bottom depth,
the lower legs will not be able to form
a 90-degree angle with the upper leg; at
this point, the lower-leg flail would not
occur. The leg-flail airbag system must
provide a consistent approach to
prevention of leg flail throughout that
range of occupants whose lower legs can
form a 90-degree angle relative to the
upper legs when seated upright in the
seat. Items that need to be considered
include, but are not limited to, the range
of occupants’ popliteal height, the range
of occupants’ buttock popliteal length,
the design of the seat effective height
above the floor, and the effective depth
of the seat bottom cushion. When the
seat system includes an airbag system,
that system must be included in each of
the certification tests as it would be
installed in the airplane. In addition, the
following situations must be considered:
a. The seat occupant is holding an
infant.
b. The seat occupant is a pregnant
woman.
4. The airbag system in the shoulder
belt must provide adequate protection
for each occupant regardless of the
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number of occupants of the seat
assembly, considering that unoccupied
seats may have an active airbag system
in the shoulder belt.
5. The design must prevent the airbag
system in the shoulder belt from being
either incorrectly buckled or incorrectly
installed, such that the airbag system in
the shoulder belt would not properly
deploy. Alternatively, it must be shown
that such deployment is not hazardous
to the occupant, and will provide the
required injury protection.
6. It must be shown that the shoulder
and leg-flail airbag system is not
susceptible to inadvertent deployment
as a result of wear and tear, or inertial
loads resulting from in-flight or ground
maneuvers (including gusts and hard
landings), and other operating and
environmental conditions (vibrations,
moisture, etc.) likely to occur in service.
7. Deployment of the shoulder and
leg-flail airbag system must not
introduce injury mechanisms to the
seated occupant, or result in injuries
that could impede rapid egress. This
assessment should include an occupant
whose belt is loosely fastened.
8. It must be shown that inadvertent
deployment of the shoulder and leg-flail
airbag system, during the most critical
part of the flight, will either meet the
requirement of § 25.1309(b) or not cause
a hazard to the airplane or its occupants.
This also includes preventing
inadvertent airbag deployment from a
static discharge.
9. If the airbag system is connected to
the dynamic seat and must inflate
through 9g static structure, then the
static structure must not fail in such a
way that it could impede egress or
otherwise present a hazard to the
occupants or to the airbag system.
10. The shoulder and leg-flail airbag
system must be protected from lightning
and high-intensity radiated fields
(HIRF). The threats to the airplane
specified in existing regulations
regarding lighting, § 25.1316, and HIRF,
§ 25.1317, are incorporated by reference
for the purpose of measuring lightning
and HIRF protection.
11. The shoulder and leg-flail airbag
system must function properly after loss
of normal airplane electrical power, and
after a transverse separation of the
fuselage at the most critical location. A
separation at the location of the airbag
system in the shoulder belt does not
have to be considered.
12. It must be shown that the shoulder
and leg-flail airbag system will not
release hazardous quantities of gas,
sharp injurious metal fragments, or
particulate matter into the cabin.
13. The shoulder and leg-flail airbag
system installation must be protected
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from the effects of fire such that no
hazard to occupants will result.
14. A means must be available for a
crewmember to verify the integrity of
the shoulder and leg-flail airbag system
activation system prior to each flight, or
it must be demonstrated to reliably
operate between inspection intervals.
The FAA considers that the loss of the
airbag-system deployment function
alone (i.e., independent of the
conditional event that requires the
airbag-system deployment) is a majorfailure condition.
15. The inflatable material may not
have an average burn rate of greater than
2.5 inches/minute when tested using the
horizontal flammability test defined in
part 25, appendix F, part I, paragraph
(b)(5).
16. The shoulder and leg-flail airbag
system, once deployed, must not
adversely affect the emergency-lighting
system (i.e., block floor proximity lights
to the extent that the lights no longer
meet their intended function).
Issued in Des Moines, Washington, on
April 23, 2019.
Victor Wicklund,
Manager, Transport Standards Branch, Policy
and Innovation Division, Aircraft
Certification Service.
[FR Doc. 2019–08973 Filed 5–1–19; 8:45 am]
BILLING CODE 4910–13–P
DEPARTMENT OF TRANSPORTATION
Federal Aviation Administration
14 CFR Part 39
[Docket No. FAA–2018–0792; Product
Identifier 2018–NM–090–AD; Amendment
39–19581; AD 2019–03–29]
RIN 2120–AA64
Airworthiness Directives; Bombardier,
Inc., Airplanes
Federal Aviation
Administration (FAA), Department of
Transportation (DOT).
ACTION: Final rule.
AGENCY:
We are adopting a new
airworthiness directive (AD) for certain
Bombardier, Inc., Model BD–100–1A10
airplanes. 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. This AD requires
modifying the left-hand hydraulic
system of the NWS control system and,
for certain airplanes, torqueing the
SUMMARY:
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Federal Register / Vol. 84, No. 85 / Thursday, May 2, 2019 / Rules and Regulations
fittings on a certain tube assembly. We
are issuing this AD to address the unsafe
condition on these products.
DATES: This AD is effective June 6, 2019.
The Director of the Federal Register
approved the incorporation by reference
of certain publications listed in this AD
as of June 6, 2019.
ADDRESSES: For service information
identified in this final rule, contact
Bombardier, Inc., 200 Coˆte-Vertu Road
West, Dorval, Que´bec H4S 2A3, Canada;
North America toll-free telephone 1–
866–538–1247 or direct-dial telephone
1–514–855–2999; email ac.yul@
aero.bombardier.com; internet https://
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.
It is also available on the internet at
https://www.regulations.gov by searching
for and locating Docket No. FAA–2018–
0792.
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Examining the AD Docket
You may examine the AD docket on
the internet at https://
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 final rule,
the regulatory evaluation, any
comments received, and other
information. The address for Docket
Operations (phone: 800–647–5527) is
U.S. Department of Transportation,
Docket Operations, M–30, West
Building Ground Floor, Room W12–140,
1200 New Jersey Avenue SE,
Washington, DC 20590.
FOR FURTHER INFORMATION CONTACT:
Darren Gassetto, Aerospace Engineer,
Mechanical Systems and Administrative
Services Section, FAA, New York ACO
Branch, 1600 Stewart Avenue, Suite
410, Westbury, NY 11590; telephone
516–228–7323; fax 516 794 5531; email
9-avs-nyaco-cos@faa.gov.
SUPPLEMENTARY INFORMATION:
Discussion
We issued a notice of proposed
rulemaking (NPRM) to amend 14 CFR
part 39 by adding an AD that would
apply to certain Bombardier, Inc., Model
BD–100–1A10 airplanes. The NPRM
published in the Federal Register on
September 17, 2018 (83 FR 46895). The
NPRM was prompted by an incident of
uncommanded NWS in-service;
subsequent investigation revealed that
the SSV is susceptible to jamming in the
open position due to particulate
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contamination of the hydraulic system.
The NPRM proposed to 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 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.
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 https://
www.regulations.gov by searching for
and locating Docket No. FAA–2018–
0792.
Comments
We gave the public the opportunity to
participate in developing this final rule.
The following presents the comments
received on the NPRM and the FAA’s
response to each comment.
Request To Correct a Date for Receipt
of Comments
Bombardier requested that we correct
a typographical error in the DATES
section of the proposed AD. The
proposed AD stated ‘‘We must receive
comments on this proposed AD by
November 1, 20181.’’ Bombardier noted
that the sentence should state ‘‘We must
receive comments on this proposed AD
by November 1, 2018.’’
We acknowledge this typographical
error. However, the section containing
this statement does not get carried over
to this final rule. Therefore, we have not
changed this AD regarding this issue.
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18705
Request To Update Contact Information
Bombardier requested that we update
their contact information in the
ADDRESSES and Related Information
sections of the proposed AD.
Bombardier noted that their email and
street addresses changed recently and
updating them in our final rule would
allow operators to contact Bombardier
with questions.
We agree with the commenter’s
request for the reasons stated. We have
updated the contact information for
Bombardier in the ADDRESSES section
and paragraph (k)(3) of this AD.
Request To Provide an Exception to
Certain Actions
NetJets requested that we provide an
exception to paragraph (g) of the
proposed AD for airplanes having serial
numbers 20720 and 20722. NetJets
noted that the actions specified in
Bombardier Service Bulletin 350–32–
007 were incorporated in accordance
with Bombardier Service Bulletin 350–
32–007 on those airplanes during
production. NetJets added that the
actions required by paragraph (h) of the
proposed AD would still apply to those
airplanes.
We agree to clarify. Paragraph (g) of
this AD only applies to airplanes not
identified in paragraph (h) of this AD.
Any airplane that has incorporated
Bombardier Service Bulletin 350–32–
007 dated January 4, 2018; Revision 01,
dated January 23, 2018; or Revision 02,
dated March 14, 2018, as of the effective
date of this AD must complete the
actions required by paragraph (h) in this
AD, but does not have to complete the
actions specified in paragraph (g) of this
AD. Therefore, this AD has not been
changed with regard to this request.
Conclusion
We reviewed the relevant data,
considered the comments received, and
determined that air safety and the
public interest require adopting this
final rule with the change described
previously and minor editorial changes.
We have determined that these minor
changes:
• Are consistent with the intent that
was proposed in the NPRM for
addressing the unsafe condition; and
• Do not add any additional burden
upon the public than was already
proposed in the NPRM.
We also determined that these
changes will not increase the economic
burden on any operator or increase the
scope of this final rule.
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Federal Register / Vol. 84, No. 85 / Thursday, May 2, 2019 / Rules and Regulations
Related Service Information Under 1
CFR Part 51
Bombardier has issued Service
Bulletin 100–32–31, Revision 03; and
Service Bulletin 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.
Costs of Compliance
We estimate that this AD affects 534
airplanes of U.S. registry. We estimate
the following costs to comply with this
AD:
ESTIMATED COSTS
Labor cost
Parts cost
Cost per
product
Cost on U.S.
operators
25 work-hours × $85 per hour = $2,125 .....................................................................................
$13,196
$15,321
$8,181,414
According to the manufacturer, some
or all of the costs of this 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.
2019–03–29 Bombardier, Inc.: Amendment
39–19581; Docket No. FAA–2018–0792;
Product Identifier 2018–NM–090–AD.
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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 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 and associated appliances to
the Director of the System Oversight
Division.
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Regulatory Findings
This AD will not have federalism
implications under Executive Order
13132. This AD will not have a
substantial direct effect on the States, on
the relationship between the national
government and the States, or on the
distribution of power and
responsibilities among the various
levels of government.
For the reasons discussed above, I
certify that this AD:
(1) Is not a ‘‘significant regulatory
action’’ under Executive Order 12866,
(2) 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.
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
1. The authority citation for part 39
continues to read as follows:
■
Authority: 49 U.S.C. 106(g), 40113, 44701.
§ 39.13
[Amended]
2. The FAA amends § 39.13 by adding
the following new airworthiness
directive (AD):
■
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(a) Effective Date
This AD is effective June 6, 2019.
(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,
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Federal Register / Vol. 84, No. 85 / Thursday, May 2, 2019 / Rules and Regulations
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.
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(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
https://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 Administrative
Services Section, FAA, New York ACO
Branch, 1600 Stewart Avenue, Suite 410,
Westbury, NY 11590; telephone 516–228–
7323; fax 516–794–5531; email 9-avs-nyacocos@faa.gov.
(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
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16:05 May 01, 2019
Jkt 247001
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 this AD specifies otherwise.
(i) Bombardier Service Bulletin 100–32–31,
Revision 03, dated March 27, 2018.
(ii) Bombardier Service Bulletin 350–32–
007, Revision 03, dated March 27, 2018.
(3) For service information identified in
this AD, contact Bombardier, Inc., 200 CoˆteVertu Road West, Dorval, Que´bec H4S 2A3,
Canada; North America toll-free telephone 1–
866–538–1247 or direct-dial telephone 1–
514–855–2999; email ac.yul@
aero.bombardier.com; internet https://
www.bombardier.com.
(4) 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.
(5) 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: https://
www.archives.gov/federal-register/cfr/ibrlocations.html.
Issued in Des Moines, Washington, on
February 22, 2019.
Michael Kaszycki,
Acting Director, System Oversight Division,
Aircraft Certification Service.
[FR Doc. 2019–08915 Filed 5–1–19; 8:45 am]
BILLING CODE 4910–13–P
DEPARTMENT OF TRANSPORTATION
Federal Aviation Administration
14 CFR Part 39
[Docket No. FAA–2018–0763; Product
Identifier 2018–NM–052–AD; Amendment
39–19626; AD 2019–08–05]
RIN 2120–AA64
Airworthiness Directives; The Boeing
Company Airplanes
Federal Aviation
Administration (FAA), DOT.
ACTION: Final rule.
AGENCY:
We are adopting a new
airworthiness directive (AD) for certain
The Boeing Company Model 787–8 and
787–9 airplanes. This AD was prompted
by a determination that certain areas in
the tire/wheel threat zones could be
susceptible to damage, which could
result in loss of braking on one main
landing gear (MLG) truck, loss of nose
wheel steering, and loss of directional
control on the ground when below
rudder effectiveness speed. This AD
requires installing hydraulic tubing, a
pressure-operated check valve, and new
flight control software. We are issuing
SUMMARY:
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18707
this AD to address the unsafe condition
on these products.
DATES: This AD is effective June 6, 2019.
The Director of the Federal Register
approved the incorporation by reference
of certain publications listed in this AD
as of June 6, 2019.
ADDRESSES: For service information
identified in this final rule, contact
Boeing Commercial Airplanes,
Attention: Contractual & Data Services
(C&DS), 2600 Westminster Blvd., MC
110–SK57, Seal Beach, CA 90740–5600;
telephone 562–797–1717; internet
https://www.myboeingfleet.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.
It is also available on the internet at
https://www.regulations.gov by searching
for and locating Docket No. FAA–2018–
0763.
Examining the AD Docket
You may examine the AD docket on
the internet at https://
www.regulations.gov by searching for
and locating Docket No. FAA–2018–
0763; or in person at Docket Operations
between 9 a.m. and 5 p.m., Monday
through Friday, except Federal holidays.
The AD docket contains this final rule,
the regulatory evaluation, any
comments received, and other
information. The address for Docket
Operations (phone: 800–647–5527) is
U.S. Department of Transportation,
Docket Operations, M–30, West
Building Ground Floor, Room W12–140,
1200 New Jersey Avenue SE,
Washington, DC 20590.
FOR FURTHER INFORMATION CONTACT:
Kelly McGuckin, Aerospace Engineer,
Systems and Equipment Section, FAA,
Seattle ACO Branch, 2200 South 216th
Street, Des Moines, WA 98198; phone
and fax: 206–231–3546; email:
Kelly.McGuckin@faa.gov.
SUPPLEMENTARY INFORMATION:
Discussion
We issued a notice of proposed
rulemaking (NPRM) to amend 14 CFR
part 39 by adding an AD that would
apply to certain The Boeing Company
Model 787–8 and 787–9 airplanes. The
NPRM published in the Federal
Register on August 31, 2018 (83 FR
44508). The NPRM was prompted by a
determination that certain areas in the
tire/wheel threat zones could be
susceptible to damage, which could
result in loss of braking on one MLG
truck, loss of nose wheel steering, and
loss of directional control on the ground
when below rudder effectiveness speed.
E:\FR\FM\02MYR1.SGM
02MYR1
]]>Agencies
[Federal Register Volume 84, Number 85 (Thursday, May 2, 2019)]
[Rules and Regulations]
[Pages 18704-18707]
From the Federal Register Online via the Government Publishing Office [www.gpo.gov]
[FR Doc No: 2019-08915]
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DEPARTMENT OF TRANSPORTATION
Federal Aviation Administration
14 CFR Part 39
[Docket No. FAA-2018-0792; Product Identifier 2018-NM-090-AD; Amendment
39-19581; AD 2019-03-29]
RIN 2120-AA64
Airworthiness Directives; Bombardier, Inc., Airplanes
AGENCY: Federal Aviation Administration (FAA), Department of
Transportation (DOT).
ACTION: Final rule.
-----------------------------------------------------------------------
SUMMARY: We are adopting a new airworthiness directive (AD) for certain
Bombardier, Inc., Model BD-100-1A10 airplanes. 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. This AD requires modifying the
left-hand hydraulic system of the NWS control system and, for certain
airplanes, torqueing the
[[Page 18705]]
fittings on a certain tube assembly. We are issuing this AD to address
the unsafe condition on these products.
DATES: This AD is effective June 6, 2019.
The Director of the Federal Register approved the incorporation by
reference of certain publications listed in this AD as of June 6, 2019.
ADDRESSES: For service information identified in this final rule,
contact Bombardier, Inc., 200 C[ocirc]te-Vertu Road West, Dorval,
Qu[eacute]bec H4S 2A3, Canada; North America toll-free telephone 1-866-
538-1247 or direct-dial telephone 1-514-855-2999; email
[email protected]; internet https://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. It is also
available on the internet at https://www.regulations.gov by searching
for and locating Docket No. FAA-2018-0792.
Examining the AD Docket
You may examine the AD docket on the internet at https://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 final rule, the regulatory evaluation, any comments received, and
other information. The address for Docket Operations (phone: 800-647-
5527) is U.S. Department of Transportation, Docket Operations, M-30,
West Building Ground Floor, Room W12-140, 1200 New Jersey Avenue SE,
Washington, DC 20590.
FOR FURTHER INFORMATION CONTACT: Darren Gassetto, Aerospace Engineer,
Mechanical Systems and Administrative 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:
Discussion
We issued a notice of proposed rulemaking (NPRM) to amend 14 CFR
part 39 by adding an AD that would apply to certain Bombardier, Inc.,
Model BD-100-1A10 airplanes. The NPRM published in the Federal Register
on September 17, 2018 (83 FR 46895). The NPRM was prompted by an
incident of uncommanded NWS in-service; subsequent investigation
revealed that the SSV is susceptible to jamming in the open position
due to particulate contamination of the hydraulic system. The NPRM
proposed to 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 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.
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 https://www.regulations.gov by searching for and locating Docket No. FAA-2018-
0792.
Comments
We gave the public the opportunity to participate in developing
this final rule. The following presents the comments received on the
NPRM and the FAA's response to each comment.
Request To Correct a Date for Receipt of Comments
Bombardier requested that we correct a typographical error in the
DATES section of the proposed AD. The proposed AD stated ``We must
receive comments on this proposed AD by November 1, 20181.'' Bombardier
noted that the sentence should state ``We must receive comments on this
proposed AD by November 1, 2018.''
We acknowledge this typographical error. However, the section
containing this statement does not get carried over to this final rule.
Therefore, we have not changed this AD regarding this issue.
Request To Update Contact Information
Bombardier requested that we update their contact information in
the ADDRESSES and Related Information sections of the proposed AD.
Bombardier noted that their email and street addresses changed recently
and updating them in our final rule would allow operators to contact
Bombardier with questions.
We agree with the commenter's request for the reasons stated. We
have updated the contact information for Bombardier in the ADDRESSES
section and paragraph (k)(3) of this AD.
Request To Provide an Exception to Certain Actions
NetJets requested that we provide an exception to paragraph (g) of
the proposed AD for airplanes having serial numbers 20720 and 20722.
NetJets noted that the actions specified in Bombardier Service Bulletin
350-32-007 were incorporated in accordance with Bombardier Service
Bulletin 350-32-007 on those airplanes during production. NetJets added
that the actions required by paragraph (h) of the proposed AD would
still apply to those airplanes.
We agree to clarify. Paragraph (g) of this AD only applies to
airplanes not identified in paragraph (h) of this AD. Any airplane that
has incorporated Bombardier Service Bulletin 350-32-007 dated January
4, 2018; Revision 01, dated January 23, 2018; or Revision 02, dated
March 14, 2018, as of the effective date of this AD must complete the
actions required by paragraph (h) in this AD, but does not have to
complete the actions specified in paragraph (g) of this AD. Therefore,
this AD has not been changed with regard to this request.
Conclusion
We reviewed the relevant data, considered the comments received,
and determined that air safety and the public interest require adopting
this final rule with the change described previously and minor
editorial changes. We have determined that these minor changes:
Are consistent with the intent that was proposed in the
NPRM for addressing the unsafe condition; and
Do not add any additional burden upon the public than was
already proposed in the NPRM.
We also determined that these changes will not increase the
economic burden on any operator or increase the scope of this final
rule.
[[Page 18706]]
Related Service Information Under 1 CFR Part 51
Bombardier has issued Service Bulletin 100-32-31, Revision 03; and
Service Bulletin 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.
Costs of Compliance
We estimate that this AD affects 534 airplanes of U.S. registry. We
estimate the following costs to comply with this 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
----------------------------------------------------------------------------------------------------------------
According to the manufacturer, some or all of the costs of this 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 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 and
associated appliances to the Director of the System Oversight Division.
Regulatory Findings
This AD will not have federalism implications under Executive Order
13132. This AD will not have a substantial direct effect on the States,
on the relationship between the national government and the States, or
on the distribution of power and responsibilities among the various
levels of government.
For the reasons discussed above, I certify that this AD:
(1) Is not a ``significant regulatory action'' under Executive
Order 12866,
(2) 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.
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 adding the following new airworthiness
directive (AD):
2019-03-29 Bombardier, Inc.: Amendment 39-19581; Docket No. FAA-
2018-0792; Product Identifier 2018-NM-090-AD.
(a) Effective Date
This AD is effective June 6, 2019.
(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,
[[Page 18707]]
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 https://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 Administrative 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].
(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 this AD specifies otherwise.
(i) Bombardier Service Bulletin 100-32-31, Revision 03, dated
March 27, 2018.
(ii) Bombardier Service Bulletin 350-32-007, Revision 03, dated
March 27, 2018.
(3) For service information identified in this AD, contact
Bombardier, Inc., 200 C[ocirc]te-Vertu Road West, Dorval,
Qu[eacute]bec H4S 2A3, Canada; North America toll-free telephone 1-
866-538-1247 or direct-dial telephone 1-514-855-2999; email
[email protected]; internet https://www.bombardier.com.
(4) 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.
(5) 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: https://www.archives.gov/federal-register/cfr/ibr-locations.html.
Issued in Des Moines, Washington, on February 22, 2019.
Michael Kaszycki,
Acting Director, System Oversight Division, Aircraft Certification
Service.
[FR Doc. 2019-08915 Filed 5-1-19; 8:45 am]
BILLING CODE 4910-13-P
