Airworthiness Directives; Bombardier, Inc., Airplanes, 35127-35129 [2017-15806]
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35127
Proposed Rules
Federal Register
Vol. 82, No. 144
Friday, July 28, 2017
This section of the FEDERAL REGISTER
contains notices to the public of the proposed
issuance of rules and regulations. The
purpose of these notices is to give interested
persons an opportunity to participate in the
rule making prior to the adoption of the final
rules.
DEPARTMENT OF TRANSPORTATION
Federal Aviation Administration
14 CFR Part 39
[Docket No. FAA–2017–0712; Directorate
Identifier 2017–NM–014–AD]
RIN 2120–AA64
Airworthiness Directives; Bombardier,
Inc., Airplanes
Federal Aviation
Administration (FAA), DOT.
ACTION: Notice of proposed rulemaking
(NPRM).
AGENCY:
We propose to supersede
Airworthiness Directive (AD) 2016–13–
14, for certain Bombardier, Inc., Model
DHC–8–400 series airplanes. AD 2016–
13–14 requires an inspection to
determine if certain left and right main
landing gear (MLG) retract actuator rod
ends are installed and repetitive liquid
penetrant inspections (LPIs) of affected
left and right MLG retract actuator rod
ends, and corrective actions if
necessary. Since we issued AD 2016–
13–14, we have determined that
replacement of the left and right MLG is
necessary to address the unsafe
condition. This proposed AD would
retain the actions specified in AD 2016–
13–14 and add a replacement of the left
and right MLG retract actuator rod ends.
We are proposing this AD to address the
unsafe condition on these products.
DATES: We must receive comments on
this proposed AD by September 11,
2017.
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
https://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.
asabaliauskas on DSKBBXCHB2PROD with PROPOSALS
SUMMARY:
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• 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., QSeries Technical Help Desk, 123 Garratt
Boulevard, Toronto, Ontario M3K 1Y5,
Canada; telephone: 416–375–4000; fax:
416–375–4539; email: thd.qseries@
aero.bombardier.com; Internet: https://
www.bombardier.com. You may view
this referenced service information at
the FAA, Transport Airplane
Directorate, 1601 Lind Avenue SW.,
Renton, WA. For information on the
availability of this material at the FAA,
call 425–227–1221.
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–2017–
0712; or in person at the Docket
Management Facility between 9 a.m.
and 5 p.m., Monday through Friday,
except Federal holidays. The AD docket
contains this proposed AD, the
regulatory evaluation, any comments
received, and other information. The
street address for the Docket Operations
office (telephone: 800–647–5527) is in
the ADDRESSES section. Comments will
be available in the AD docket shortly
after receipt.
Aziz
Ahmed, Aerospace Engineer, Airframe
and Mechanical Systems Branch, ANE–
171, FAA, New York Aircraft
Certification Office (ACO), 1600 Stewart
Avenue, Suite 410, Westbury, NY
11590; telephone: 516–228–7329; fax:
516–794–5531.
FOR FURTHER INFORMATION CONTACT:
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–
2017–0712; Directorate Identifier 2017–
NM–014–AD’’ at the beginning of your
comments. We specifically invite
comments on the overall regulatory,
economic, environmental, and energy
aspects of this proposed AD. We will
consider all comments received by the
closing date and may amend this
proposed AD based on those comments.
PO 00000
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Fmt 4702
Sfmt 4702
We will post all comments we
receive, without change, to https://
www.regulations.gov, including any
personal information you provide. We
will also post a report summarizing each
substantive verbal contact we receive
about this proposed AD.
Discussion
On June 22, 2016, we issued AD
2016–13–14, Amendment 39–18579 (81
FR 43481, July 5, 2016) (‘‘AD 2016–13–
14’’), for certain Bombardier, Inc.,
Model DHC–8–400 series airplanes. AD
2016–13–14 was prompted by a report
of a cracked MLG retract actuator rod
end. AD 2016–13–14 requires an
inspection to determine if certain left
and right MLG retract actuator rod ends
are installed and repetitive LPIs of
affected left and right MLG retract
actuator rod ends, and corrective actions
if necessary. AD 2016–13–14 also
provides optional terminating action for
the inspections. We issued AD 2016–
13–14 to detect and correct fatigue
cracking of the left and right MLG
retract actuator rod ends, which could
lead to left or right MLG collapse.
The preamble to AD 2016–13–14
explains that we consider the
requirements ‘‘interim action’’ and were
considering further rulemaking. We now
have determined that further
rulemaking is indeed necessary, and
this proposed AD follows from that
determination.
Transport Canada Civil Aviation
(TCCA), which is the aviation authority
for Canada, has issued Canadian AD
CF–2016–16R1, dated June 27, 2016
(referred to after this as the Mandatory
Continuing Airworthiness Information,
or ‘‘the MCAI’’), to correct an unsafe
condition for certain Bombardier, Inc.
Model DHC–8–400 series airplanes. The
MCAI states:
There has been a single reported case of a
cracked MLG retract actuator rod end in
service. A supplier disclosure letter and
subsequent Bombardier analysis indicate that
the MLG retract actuator rod end P/N [part
number] P3A2750 and P3A2750–1 may
develop fatigue cracking. This condition, if
not corrected, could lead to left hand (LH) or
right hand (RH) MLG collapse.
This [Canadian] AD mandates the
inspection [to determine if certain left and
right main landing gear MLG retract actuator
rod ends are installed, repetitive LPIs of
affected left and right MLG retract actuator
rod ends, and corrective actions if necessary],
and replacement of the LH and RH MLG
retract actuator rod ends P/N P3A2750 and
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Federal Register / Vol. 82, No. 144 / Friday, July 28, 2017 / Proposed Rules
P3A2750–1 [which is terminating action for
the repetitive LPIs].
This [Canadian] AD was revised to clarify
paragraph B. and C. [of this Canadian AD],
which specifies when the Liquid Penetrant
Inspections (LPI) should begin.
Corrective actions includes replacing
cracked MLG retract actuator rod ends.
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–2017–
0712.
Related Service Information Under 1
CFR Part 51
Bombardier, Inc. has issued
Bombardier Service Bulletin 84–32–142,
dated May 4, 2016. This service
information describes procedures for an
inspection to determine if certain left
and right MLG retract actuator rod ends
are installed, repetitive LPIs of the left
and right MLG retract actuator rod ends,
and replacement of left and right MLG
retract actuator rod ends. 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 and Requirements
of This Proposed AD
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 pertinent
information and determined an unsafe
condition exists and is likely to exist or
develop on other products of the same
type design.
asabaliauskas on DSKBBXCHB2PROD with PROPOSALS
Costs of Compliance
We estimate that this proposed AD
affects 52 airplanes of U.S. registry.
The actions required by AD 2016–13–
14, and retained in this proposed AD
takes about 1 work-hour per product, at
an average labor rate of $85 per workhour. Based on these figures, the
estimated cost of the inspection that is
required by AD 2016–13–14 is $85 per
product.
We also estimate that it would take
about 3 work-hours per product to
comply with the basic requirements of
this proposed AD. The average labor
rate is $85 per work-hour. Required
parts would cost about $2,019 per
product. Based on these figures, we
estimate the cost of this proposed AD on
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18:10 Jul 27, 2017
Jkt 241001
U.S. operators to be $118,248, or $2,274
per product.
In addition, we estimate that any
necessary follow-on actions will take
about 3 work-hours and require parts
costing $2,019, for a cost of $2,274 per
product. We have no way of
determining the number of aircraft that
might need these actions.
According to the manufacturer, some
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 costs in our cost
estimate.
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
1. The authority citation for part 39
continues to read as follows:
■
Authority: 49 U.S.C. 106(g), 40113, 44701.
Authority for This Rulemaking
§ 39.13
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.
■
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.
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[Amended]
2. The FAA amends § 39.13 by
removing Airworthiness Directive (AD)
2016–13–14, Amendment 39–18579 (81
FR 43481, July 5, 2016), and adding the
following new AD:
Bombardier, Inc.: Docket No. FAA–2017–
0712; Directorate Identifier 2017–NM–
014–AD.
(a) Comments Due Date
We must receive comments by September
11, 2017.
(b) Affected ADs
This AD replaces AD 2016–13–14,
Amendment 39–18579 (81 FR 43481, July 5,
2016) (‘‘AD 2016–13–14’’).
(c) Applicability
This AD applies to Bombardier, Inc.,
Model DHC–8–400, –401 and –402 airplanes,
certificated in any category, serial numbers
4001, and 4003 through 4325 inclusive.
(d) Subject
Air Transport Association (ATA) of
America Code 32, Landing gear.
(e) Reason
This AD was prompted by a report of a
cracked main landing gear (MLG) retract
actuator rod end. We are issuing this AD to
detect and correct fatigue cracking of the left
and right MLG retract actuator rod ends,
which could lead to left or right MLG
collapse.
(f) Compliance
Comply with this AD within the
compliance times specified, unless already
done.
(g) Retained Part Number Inspection, With
No Changes
This paragraph restates the requirements of
paragraph (g) of AD 2016–13–14, with no
changes. Within 100 flight cycles after July
20, 2016 (the effective date of AD 2016–13–
14), inspect the left and right MLG retract
actuator rod ends to determine if part number
(P/N) P3A2750 or P3A2750–1 is installed. A
review of airplane maintenance records is
acceptable in lieu of this inspection if the
part number can be conclusively determined
from that review.
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Federal Register / Vol. 82, No. 144 / Friday, July 28, 2017 / Proposed Rules
(h) Retained Repetitive Liquid Penetrant
Inspections (LPIs), With No Changes
This paragraph restates the requirements of
paragraph (h) of AD 2016–13–14, with no
changes. For each left or right MLG retract
actuator rod end having P/N P3A2750 or
P3A2750–1: At the applicable time specified
in paragraph (h)(1) or (h)(2) of this AD, do
an LPI to detect cracks of the MLG retract
actuator rod end, in accordance with the
Accomplishment Instructions of Bombardier
Service Bulletin 84–32–142, dated May 4,
2016, except as required by paragraph (k) of
this AD. Thereafter, repeat the LPI at
intervals not to exceed 600 flight cycles.
(1) If the MLG retract actuator rod end has
accumulated more than 6,000 flight cycles as
of July 20, 2016 (the effective date of AD
2016–13–14): Inspect within 100 flight cycles
after July 20, 2016.
(2) If the MLG retract actuator rod end has
accumulated 6,000 flight cycles or fewer as
of July 20, 2016 (the effective date of AD
2016–13–14): Inspect within 600 flight cycles
after July 20, 2016.
(i) Retained Corrective Action, With No
Changes
This paragraph restates the requirements of
paragraph (i) of AD 2016–13–14, with no
changes. If any crack is found during any
inspection required by paragraph (h) of this
AD, before further flight replace the cracked
MLG retract actuator rod end, P/N P3A2750
or P3A2750–1, with a MLG retract actuator
rod end, P/N P3A6460 in accordance with
the Accomplishment Instructions of
Bombardier Service Bulletin 84–32–142,
dated May 4, 2016, except as required by
paragraph (k) of this AD.
asabaliauskas on DSKBBXCHB2PROD with PROPOSALS
(j) Retained Optional Replacement, With No
Changes
This paragraph restates the optional
replacement specified in paragraph (j) of AD
2016–13–14, with no changes. Replacement
of the left and right side MLG retract actuator
rod ends, P/N P3A2750 or P3A2750–1, with
left and right MLG retract actuator rod ends,
P/N P3A6460, in accordance with the
Accomplishment Instructions of Bombardier
Service Bulletin 84–32–142, dated May 4,
2016, except as required by paragraph (k) of
this AD, constitutes terminating action for
the actions required by paragraphs (g) and (h)
of this AD for that airplane.
(k) Retained Exception, With No Changes
This paragraph restates the requirements of
paragraph (k) of AD 2016–13–14, with no
changes. If it is not possible to complete all
the instructions in Bombardier Service
Bulletin 84–32–142, dated May 4, 2016,
because of the configuration of the airplane:
Before further flight, repair using a method
approved by the Manager, New York Aircraft
Certification Office (ACO), ANE–170, FAA;
or Transport Canada Civil Aviation (TCCA);
or Bombardier, Inc.’s TCCA Design Approval
Organization (DAO).
(l) Retained Parts Installation Prohibition,
With No Changes
This paragraph restates the requirements of
paragraph (l) of AD 2016–13–14, with no
changes. As of July 20, 2016 (the effective
VerDate Sep<11>2014
18:10 Jul 27, 2017
Jkt 241001
date of AD 2016–13–14), no person may
install a left or right MLG retract actuator rod
end, P/N P3A2750 or P3A2750–1, on any
airplane.
(m) New Requirement of This AD:
Replacement
Within 1,800 flight cycles after
accomplishing the initial inspection required
by paragraph (g) of this AD, replace the left
and right side MLG retract actuator rod ends,
P/N P3A2750 or P3A2750–1, with left and
right MLG retract actuator rod ends, P/N
P3A6460, in accordance with the
Accomplishment Instructions of Bombardier
Service Bulletin 84–32–142, dated May 4,
2016, except as required by paragraph (k) of
this AD. Accomplishing this replacement
terminates the requirements of paragraphs (g)
and (h) of this AD for that airplane.
(n) Other FAA AD Provisions
The following provisions also apply to this
AD:
(1) Alternative Methods of Compliance
(AMOCs): The Manager, New York ACO,
ANE–170, 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 ACO, send it to ATTN:
Program Manager, Continuing Operational
Safety, FAA, New York ACO, 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, ANE–170,
FAA; or TCCA; or Bombardier Inc.’s TCCA
DAO. If approved by the DAO, the approval
must include the DAO-authorized signature.
(o) Related Information
(1) Refer to Mandatory Continuing
Airworthiness Information (MCAI) Canadian
AD CF–2016–16R1, dated June 27, 2016, 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–2017–0712.
(2) For more information about this AD,
contact Aziz Ahmed, Aerospace Engineer,
Airframe and Mechanical Systems Branch,
ANE–171, FAA, New York ACO, 1600
Stewart Avenue, Suite 410, Westbury, NY
11590; telephone: 516–228–7329; fax: 516–
794–5531.
(3) For service information identified in
this AD, contact Bombardier, Inc., Q-Series
Technical Help Desk, 123 Garratt Boulevard,
Toronto, Ontario M3K 1Y5, Canada;
telephone: 416–375–4000; fax: 416–375–
4539; email: thd.qseries@
aero.bombardier.com; Internet: https://
www.bombardier.com. You may view this
service information at the FAA, Transport
Airplane Directorate, 1601 Lind Avenue SW.,
PO 00000
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35129
Renton, WA. For information on the
availability of this material at the FAA, call
425–227–1221.
Issued in Renton, Washington, on July 19,
2017.
Victor Wicklund,
Acting Manager, Transport Airplane
Directorate, Aircraft Certification Service.
[FR Doc. 2017–15806 Filed 7–27–17; 8:45 am]
BILLING CODE 4910–13–P
DEPARTMENT OF TRANSPORTATION
Federal Aviation Administration
14 CFR Part 71
[Docket No. FAA–2017–0565; Airspace
Docket No. 17–AWP–1]
Proposed Establishment of Class D
and Class E Airspace, Amendment of
Class E Airspace; Truckee, CA
Federal Aviation
Administration (FAA), DOT.
ACTION: Notice of proposed rulemaking
(NPRM).
AGENCY:
This action proposes to
establish Class D airspace, and Class E
airspace designated as an extension, and
modify Class E airspace extending
upward from 700 feet above the surface,
at Truckee-Tahoe Airport, Truckee, CA.
This airspace redesign is necessary to
support standard instrument approach
and departure procedures under
instrument flight rules (IFR) operations
at the airport due to the commissioning
of the Truckee-Tahoe Airport NonFederal Contract Tower. This proposal
would enhance the safety and
management of IFR operations at the
airport.
SUMMARY:
Comments must be received on
or before September 11, 2017.
ADDRESSES: Send comments on this
proposal to the U.S. Department of
Transportation, Docket Operations, 1200
New Jersey Avenue SE., West Building
Ground Floor, Room W12–140,
Washington, DC 20590; telephone: 1–
800–647–5527, or (202) 366–9826. You
must identify FAA Docket No. FAA–
2017–0565; Airspace Docket No. 17–
AWP–1, at the beginning of your
comments. You may also submit
comments through the Internet at https://
www.regulations.gov.
FAA Order 7400.11, Airspace
Designations and Reporting Points, and
subsequent amendments can be viewed
online at https://www.faa.gov/air_traffic/
publications/. For further information,
you can contact the Airspace Policy
Group, Federal Aviation
Administration, 800 Independence
DATES:
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]]>Agencies
[Federal Register Volume 82, Number 144 (Friday, July 28, 2017)]
[Proposed Rules]
[Pages 35127-35129]
From the Federal Register Online via the Government Publishing Office [www.gpo.gov]
[FR Doc No: 2017-15806]
========================================================================
Proposed Rules
Federal Register
________________________________________________________________________
This section of the FEDERAL REGISTER contains notices to the public of
the proposed issuance of rules and regulations. The purpose of these
notices is to give interested persons an opportunity to participate in
the rule making prior to the adoption of the final rules.
========================================================================
Federal Register / Vol. 82, No. 144 / Friday, July 28, 2017 /
Proposed Rules
[[Page 35127]]
DEPARTMENT OF TRANSPORTATION
Federal Aviation Administration
14 CFR Part 39
[Docket No. FAA-2017-0712; Directorate Identifier 2017-NM-014-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 supersede Airworthiness Directive (AD) 2016-13-
14, for certain Bombardier, Inc., Model DHC-8-400 series airplanes. AD
2016-13-14 requires an inspection to determine if certain left and
right main landing gear (MLG) retract actuator rod ends are installed
and repetitive liquid penetrant inspections (LPIs) of affected left and
right MLG retract actuator rod ends, and corrective actions if
necessary. Since we issued AD 2016-13-14, we have determined that
replacement of the left and right MLG is necessary to address the
unsafe condition. This proposed AD would retain the actions specified
in AD 2016-13-14 and add a replacement of the left and right MLG
retract actuator rod ends. We are proposing this AD to address the
unsafe condition on these products.
DATES: We must receive comments on this proposed AD by September 11,
2017.
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 https://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., Q-Series Technical Help Desk, 123 Garratt Boulevard,
Toronto, Ontario M3K 1Y5, Canada; telephone: 416-375-4000; fax: 416-
375-4539; email: thd.qseries@aero.bombardier.com; Internet: https://www.bombardier.com. You may view this referenced service information at
the FAA, Transport Airplane Directorate, 1601 Lind Avenue SW., Renton,
WA. For information on the availability of this material at the FAA,
call 425-227-1221.
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-2017-
0712; or in person at the Docket Management Facility between 9 a.m. and
5 p.m., Monday through Friday, except Federal holidays. The AD docket
contains this proposed AD, the regulatory evaluation, any comments
received, and other information. The street address for the Docket
Operations office (telephone: 800-647-5527) is in the ADDRESSES
section. Comments will be available in the AD docket shortly after
receipt.
FOR FURTHER INFORMATION CONTACT: Aziz Ahmed, Aerospace Engineer,
Airframe and Mechanical Systems Branch, ANE-171, FAA, New York Aircraft
Certification Office (ACO), 1600 Stewart Avenue, Suite 410, Westbury,
NY 11590; telephone: 516-228-7329; fax: 516-794-5531.
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-2017-0712;
Directorate Identifier 2017-NM-014-AD'' at the beginning of your
comments. We specifically invite comments on the overall regulatory,
economic, environmental, and energy aspects of this proposed AD. We
will consider all comments received by the closing date and may amend
this proposed AD based on those comments.
We will post all comments we receive, without change, to https://www.regulations.gov, including any personal information you provide. We
will also post a report summarizing each substantive verbal contact we
receive about this proposed AD..
Discussion
On June 22, 2016, we issued AD 2016-13-14, Amendment 39-18579 (81
FR 43481, July 5, 2016) (``AD 2016-13-14''), for certain Bombardier,
Inc., Model DHC-8-400 series airplanes. AD 2016-13-14 was prompted by a
report of a cracked MLG retract actuator rod end. AD 2016-13-14
requires an inspection to determine if certain left and right MLG
retract actuator rod ends are installed and repetitive LPIs of affected
left and right MLG retract actuator rod ends, and corrective actions if
necessary. AD 2016-13-14 also provides optional terminating action for
the inspections. We issued AD 2016-13-14 to detect and correct fatigue
cracking of the left and right MLG retract actuator rod ends, which
could lead to left or right MLG collapse.
The preamble to AD 2016-13-14 explains that we consider the
requirements ``interim action'' and were considering further
rulemaking. We now have determined that further rulemaking is indeed
necessary, and this proposed AD follows from that determination.
Transport Canada Civil Aviation (TCCA), which is the aviation
authority for Canada, has issued Canadian AD CF-2016-16R1, dated June
27, 2016 (referred to after this as the Mandatory Continuing
Airworthiness Information, or ``the MCAI''), to correct an unsafe
condition for certain Bombardier, Inc. Model DHC-8-400 series
airplanes. The MCAI states:
There has been a single reported case of a cracked MLG retract
actuator rod end in service. A supplier disclosure letter and
subsequent Bombardier analysis indicate that the MLG retract
actuator rod end P/N [part number] P3A2750 and P3A2750-1 may develop
fatigue cracking. This condition, if not corrected, could lead to
left hand (LH) or right hand (RH) MLG collapse.
This [Canadian] AD mandates the inspection [to determine if
certain left and right main landing gear MLG retract actuator rod
ends are installed, repetitive LPIs of affected left and right MLG
retract actuator rod ends, and corrective actions if necessary], and
replacement of the LH and RH MLG retract actuator rod ends P/N
P3A2750 and
[[Page 35128]]
P3A2750-1 [which is terminating action for the repetitive LPIs].
This [Canadian] AD was revised to clarify paragraph B. and C.
[of this Canadian AD], which specifies when the Liquid Penetrant
Inspections (LPI) should begin.
Corrective actions includes replacing cracked MLG retract actuator
rod ends. 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-2017-0712.
Related Service Information Under 1 CFR Part 51
Bombardier, Inc. has issued Bombardier Service Bulletin 84-32-142,
dated May 4, 2016. This service information describes procedures for an
inspection to determine if certain left and right MLG retract actuator
rod ends are installed, repetitive LPIs of the left and right MLG
retract actuator rod ends, and replacement of left and right MLG
retract actuator rod ends. 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 and Requirements of This Proposed AD
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 pertinent information and determined an unsafe condition
exists and is likely to exist or develop on other products of the same
type design.
Costs of Compliance
We estimate that this proposed AD affects 52 airplanes of U.S.
registry.
The actions required by AD 2016-13-14, and retained in this
proposed AD takes about 1 work-hour per product, at an average labor
rate of $85 per work-hour. Based on these figures, the estimated cost
of the inspection that is required by AD 2016-13-14 is $85 per product.
We also estimate that it would take about 3 work-hours per product
to comply with the basic requirements of this proposed AD. The average
labor rate is $85 per work-hour. Required parts would cost about $2,019
per product. Based on these figures, we estimate the cost of this
proposed AD on U.S. operators to be $118,248, or $2,274 per product.
In addition, we estimate that any necessary follow-on actions will
take about 3 work-hours and require parts costing $2,019, for a cost of
$2,274 per product. We have no way of determining the number of
aircraft that might need these actions.
According to the manufacturer, some 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 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.
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 removing Airworthiness Directive (AD)
2016-13-14, Amendment 39-18579 (81 FR 43481, July 5, 2016), and adding
the following new AD:
Bombardier, Inc.: Docket No. FAA-2017-0712; Directorate Identifier
2017-NM-014-AD.
(a) Comments Due Date
We must receive comments by September 11, 2017.
(b) Affected ADs
This AD replaces AD 2016-13-14, Amendment 39-18579 (81 FR 43481,
July 5, 2016) (``AD 2016-13-14'').
(c) Applicability
This AD applies to Bombardier, Inc., Model DHC-8-400, -401 and -
402 airplanes, certificated in any category, serial numbers 4001,
and 4003 through 4325 inclusive.
(d) Subject
Air Transport Association (ATA) of America Code 32, Landing
gear.
(e) Reason
This AD was prompted by a report of a cracked main landing gear
(MLG) retract actuator rod end. We are issuing this AD to detect and
correct fatigue cracking of the left and right MLG retract actuator
rod ends, which could lead to left or right MLG collapse.
(f) Compliance
Comply with this AD within the compliance times specified,
unless already done.
(g) Retained Part Number Inspection, With No Changes
This paragraph restates the requirements of paragraph (g) of AD
2016-13-14, with no changes. Within 100 flight cycles after July 20,
2016 (the effective date of AD 2016-13-14), inspect the left and
right MLG retract actuator rod ends to determine if part number (P/
N) P3A2750 or P3A2750-1 is installed. A review of airplane
maintenance records is acceptable in lieu of this inspection if the
part number can be conclusively determined from that review.
[[Page 35129]]
(h) Retained Repetitive Liquid Penetrant Inspections (LPIs), With No
Changes
This paragraph restates the requirements of paragraph (h) of AD
2016-13-14, with no changes. For each left or right MLG retract
actuator rod end having P/N P3A2750 or P3A2750-1: At the applicable
time specified in paragraph (h)(1) or (h)(2) of this AD, do an LPI
to detect cracks of the MLG retract actuator rod end, in accordance
with the Accomplishment Instructions of Bombardier Service Bulletin
84-32-142, dated May 4, 2016, except as required by paragraph (k) of
this AD. Thereafter, repeat the LPI at intervals not to exceed 600
flight cycles.
(1) If the MLG retract actuator rod end has accumulated more
than 6,000 flight cycles as of July 20, 2016 (the effective date of
AD 2016-13-14): Inspect within 100 flight cycles after July 20,
2016.
(2) If the MLG retract actuator rod end has accumulated 6,000
flight cycles or fewer as of July 20, 2016 (the effective date of AD
2016-13-14): Inspect within 600 flight cycles after July 20, 2016.
(i) Retained Corrective Action, With No Changes
This paragraph restates the requirements of paragraph (i) of AD
2016-13-14, with no changes. If any crack is found during any
inspection required by paragraph (h) of this AD, before further
flight replace the cracked MLG retract actuator rod end, P/N P3A2750
or P3A2750-1, with a MLG retract actuator rod end, P/N P3A6460 in
accordance with the Accomplishment Instructions of Bombardier
Service Bulletin 84-32-142, dated May 4, 2016, except as required by
paragraph (k) of this AD.
(j) Retained Optional Replacement, With No Changes
This paragraph restates the optional replacement specified in
paragraph (j) of AD 2016-13-14, with no changes. Replacement of the
left and right side MLG retract actuator rod ends, P/N P3A2750 or
P3A2750-1, with left and right MLG retract actuator rod ends, P/N
P3A6460, in accordance with the Accomplishment Instructions of
Bombardier Service Bulletin 84-32-142, dated May 4, 2016, except as
required by paragraph (k) of this AD, constitutes terminating action
for the actions required by paragraphs (g) and (h) of this AD for
that airplane.
(k) Retained Exception, With No Changes
This paragraph restates the requirements of paragraph (k) of AD
2016-13-14, with no changes. If it is not possible to complete all
the instructions in Bombardier Service Bulletin 84-32-142, dated May
4, 2016, because of the configuration of the airplane: Before
further flight, repair using a method approved by the Manager, New
York Aircraft Certification Office (ACO), ANE-170, FAA; or Transport
Canada Civil Aviation (TCCA); or Bombardier, Inc.'s TCCA Design
Approval Organization (DAO).
(l) Retained Parts Installation Prohibition, With No Changes
This paragraph restates the requirements of paragraph (l) of AD
2016-13-14, with no changes. As of July 20, 2016 (the effective date
of AD 2016-13-14), no person may install a left or right MLG retract
actuator rod end, P/N P3A2750 or P3A2750-1, on any airplane.
(m) New Requirement of This AD: Replacement
Within 1,800 flight cycles after accomplishing the initial
inspection required by paragraph (g) of this AD, replace the left
and right side MLG retract actuator rod ends, P/N P3A2750 or
P3A2750-1, with left and right MLG retract actuator rod ends, P/N
P3A6460, in accordance with the Accomplishment Instructions of
Bombardier Service Bulletin 84-32-142, dated May 4, 2016, except as
required by paragraph (k) of this AD. Accomplishing this replacement
terminates the requirements of paragraphs (g) and (h) of this AD for
that airplane.
(n) Other FAA AD Provisions
The following provisions also apply to this AD:
(1) Alternative Methods of Compliance (AMOCs): The Manager, New
York ACO, ANE-170, 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 ACO, send it
to ATTN: Program Manager, Continuing Operational Safety, FAA, New
York ACO, 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,
ANE-170, FAA; or TCCA; or Bombardier Inc.'s TCCA DAO. If approved by
the DAO, the approval must include the DAO-authorized signature.
(o) Related Information
(1) Refer to Mandatory Continuing Airworthiness Information
(MCAI) Canadian AD CF-2016-16R1, dated June 27, 2016, 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-2017-0712.
(2) For more information about this AD, contact Aziz Ahmed,
Aerospace Engineer, Airframe and Mechanical Systems Branch, ANE-171,
FAA, New York ACO, 1600 Stewart Avenue, Suite 410, Westbury, NY
11590; telephone: 516-228-7329; fax: 516-794-5531.
(3) For service information identified in this AD, contact
Bombardier, Inc., Q-Series Technical Help Desk, 123 Garratt
Boulevard, Toronto, Ontario M3K 1Y5, Canada; telephone: 416-375-
4000; fax: 416-375-4539; email: thd.qseries@aero.bombardier.com;
Internet: https://www.bombardier.com. You may view this service
information at the FAA, Transport Airplane Directorate, 1601 Lind
Avenue SW., Renton, WA. For information on the availability of this
material at the FAA, call 425-227-1221.
Issued in Renton, Washington, on July 19, 2017.
Victor Wicklund,
Acting Manager, Transport Airplane Directorate, Aircraft Certification
Service.
[FR Doc. 2017-15806 Filed 7-27-17; 8:45 am]
BILLING CODE 4910-13-P
