Airworthiness Directives; Bombardier, Inc. Airplanes, 11325-11327 [2017-03262]
Download as PDF
Federal Register / Vol. 82, No. 34 / Wednesday, February 22, 2017 / Proposed Rules
should contact USDA’s TARGET Center
at (202) 720–2600 (voice and TDD).
Dated: February 15, 2017.
Alfred V. Almanza,
Administrator and Acting Deputy Under
Secretary, Office of Food Safety.
[FR Doc. 2017–03390 Filed 2–21–17; 8:45 am]
BILLING CODE P
DEPARTMENT OF TRANSPORTATION
Federal Aviation Administration
14 CFR Part 39
[Docket No. FAA–2016–9575; Directorate
Identifier 2016–NM–168–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) 2014–20–
09 for certain Bombardier, Inc. Model
DHC–8–400 series airplanes. AD 2014–
20–09 currently requires an inspection
for missing clamps that are required to
provide positive separation between the
alternating current (AC) feeder cables
and the hydraulic line of the landing
gear alternate extension, and related
investigative and corrective actions if
necessary. Since we issued AD 2014–
20–09, it was determined that certain
airplane serial numbers are not subject
to the identified unsafe condition. This
proposed AD would remove airplanes
from the AD applicability. We are
proposing this AD to address the unsafe
condition on these products.
DATES: We must receive comments on
this proposed AD by April 10, 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.,
sradovich on DSK3GMQ082PROD with PROPOSALS
SUMMARY:
VerDate Sep<11>2014
16:01 Feb 21, 2017
Jkt 241001
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–2016–
9575; 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:
Assata Dessaline, Aerospace Engineer,
Avionics and Services Branch, ANE–
172, FAA, New York Aircraft
Certification Office (ACO), 1600 Stewart
Avenue, Suite 410, Westbury, NY
11590; telephone 516–228–7301; fax
516–794–5531.
SUPPLEMENTARY INFORMATION:
Comments Invited
We invite you to send any written
relevant data, views, or arguments about
this proposed AD. Send your comments
to an address listed under the
ADDRESSES section. Include ‘‘Docket No.
FAA–2016–9575; Directorate Identifier
2016–NM–168–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 September 23, 2014, we issued AD
2014–20–09, Amendment 39–17982 (79
FR 59630, October 3, 2014) (‘‘AD 2014–
20–09’’), for certain Bombardier, Inc.
Model DHC–8–400 series airplanes. AD
PO 00000
Frm 00002
Fmt 4702
Sfmt 4702
11325
2014–20–09 was prompted by reports of
missing clamps that are required to
provide positive separation between the
AC feeder cables and the hydraulic line
of the landing gear alternate extension.
AD 2014–20–09 requires an inspection
for missing clamps that are required to
provide positive separation between the
AC feeder cables and the hydraulic line
of the landing gear alternate extension,
and related investigative and corrective
actions if necessary. We issued AD
2014–20–09 to detect and correct
chafing of the AC feeder cable. A chafed
and arcing AC feeder cable could
puncture the adjacent hydraulic line,
which, in combination with the use of
the alternate extension system, could
result in an in-flight fire.
Since we issued AD 2014–20–09, it
was determined that certain airplane
serial numbers are in a Pre-modification
MS 4M153025 configuration, which
allows sufficient space between the AC
feeder cables and the landing gear
alternate extension hydraulic line do
not pose an in-flight fire risk. Therefore,
these airplanes are not subject to the
identified unsafe condition.
Transport Canada Civil Aviation
(TCCA), which is the aviation authority
for Canada, has issued Canadian
Airworthiness Directive CF–2013–16R1,
effective July 26, 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:
During production checks, it was found
that the appropriate clamps required to
provide positive separation between the AC
feeder cables and the hydraulic line of the
landing gear alternate extension were
omitted. The AC feeder cable could sag and
be in direct contact with the swage fitting of
the landing gear alternate extension
hydraulic line, resulting in chafing of the AC
feeder cable. The chafed and arcing AC
feeder cable could puncture the adjacent
hydraulic line. In combination with the use
of the alternate extension system, this could
result in an in-flight fire.
The original issue of this [Canadian] AD
was issued to mandate the incorporation of
[Bombardier] service bulletin (SB) 84–24–53
to * * * [do a general visual inspection for
the presence of correctly installed clamps]
and rectify, as necessary, for proper clamp
installation.
Bombardier, Inc. has revised SB 84–24–53
to remove serial numbers 4001 through 4034
from the Effectivity section, as it was
determined that these serial numbers are PreMod MS 4M153025, which allowed
sufficient space between the AC feeder cables
and the landing gear alternate extension
hydraulic line to not pose an in-flight fire
risk. Accordingly, revision 1 of this
[Canadian] AD is issued to revise the
E:\FR\FM\22FEP1.SGM
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11326
Federal Register / Vol. 82, No. 34 / Wednesday, February 22, 2017 / Proposed Rules
Applicability section to reflect the Effectivity
changes in [Bombardier Service Bulletin] SB
84–24–53 Revision B, dated 10 September
2015.
The related investigative action is a
general visual inspection of the AC
power feeder cables and the hydraulic
line for damage due to chafing. The
corrective actions include repair of
chafed parts and replacement of missing
clamps. 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–2016–
9575.
Related Service Information Under 1
CFR Part 51
We reviewed Bombardier Service
Bulletin 84–24–53, Revision B, dated
September 10, 2015. The service
information describes procedures for a
general visual inspection for installation
of clamps between the AC feeder cables
and hydraulic line, and related
investigative and corrective actions.
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.
sradovich on DSK3GMQ082PROD with PROPOSALS
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 2014–20–
09, and retained in this proposed AD,
take about 2 work-hours per product, at
an average labor rate of $85 per workhour. Required parts cost about $170 per
product. Based on these figures, the
estimated cost of the actions that are
required by AD 2014–20–09 is $17,680
per product.
This proposed AD merely removes
certain airplanes and, therefore, adds no
new actions or economic burden.
Authority for This Rulemaking
Title 49 of the United States Code
specifies the FAA’s authority to issue
rules on aviation safety. Subtitle I,
VerDate Sep<11>2014
16:01 Feb 21, 2017
Jkt 241001
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
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
removing Airworthiness Directive (AD)
2014–20–09, Amendment 39–17982 (79
■
PO 00000
Frm 00003
Fmt 4702
Sfmt 4702
FR 59630, October 3, 2014), and adding
the following new AD:
Bombardier, Inc.: Docket No. FAA–2016–
9575; Directorate Identifier 2016–NM–
168–AD.
(a) Comments Due Date
We must receive comments by April 10,
2017.
(b) Affected ADs
This AD replaces AD 2014–20–09,
Amendment 39–17982 (79 FR 59630, October
3, 2014) (‘‘AD 2014–20–09’’).
(c) Applicability
This AD applies to Bombardier, Inc. Model
DHC–400, –401, and –402 airplanes,
certificated in any category, serial numbers
4035 through 4347 inclusive.
(d) Subject
Air Transport Association (ATA) of
America Code 24, Electrical power.
(e) Reason
This AD was prompted by reports of
missing clamps that are required to provide
positive separation between the alternating
current (AC) feeder cables and the hydraulic
line of the landing gear alternate extension.
We are issuing this AD to detect and correct
chafing of the AC feeder cable. A chafed and
arcing AC feeder cable could puncture the
adjacent hydraulic line, which, in
combination with the use of the alternate
extension system, could result in an in-flight
fire.
(f) Compliance
Comply with this AD within the
compliance times specified, unless already
done.
(g) Retained Clamp Inspection, Related
Investigative Actions, and Corrective
Actions, With Revised Service Information
Having Reduced Effectivity
This paragraph restates the requirements of
paragraph (g) of AD 2014–20–09, with
revised service information having reduced
Effectivity. Within 6,000 flight hours or 36
months after November 7, 2014 (the effective
date of AD 2014–20–09), whichever occurs
earlier: Do a general visual inspection for
correctly installed clamps between the AC
feeder cables and hydraulic line, and do all
applicable related investigative and
corrective actions; in accordance with the
Accomplishment Instructions of Bombardier
Service Bulletin 84–24–53, Revision B, dated
September 10, 2015. Do all applicable related
investigative and corrective actions before
further flight. After the effective date of this
AD, only Bombardier Service Bulletin 84–
24–53, Revision B, dated September 10, 2015,
may be used.
(h) Credit for Previous Actions
This paragraph provides credit for actions
required by paragraph (g) of this AD, if those
actions were performed before November 7,
2014 (the effective date of AD 2014–20–09),
using Bombardier Service Bulletin 84–24–53,
dated May 11, 2012; or Bombardier Service
Bulletin 84–24–53, Revision A, dated May
16, 2013.
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Federal Register / Vol. 82, No. 34 / Wednesday, February 22, 2017 / Proposed Rules
(i) Other FAA AD Provisions
DEPARTMENT OF TRANSPORTATION
The following provisions also apply to this
AD:
(1) Alternative Methods of Compliance
(AMOCs): The Manager, New York Aircraft
Certification Office (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 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: As of the
effective date of this AD, 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 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
sradovich on DSK3GMQ082PROD with PROPOSALS
(1) Refer to Mandatory Continuing
Airworthiness Information (MCAI) Canadian
Airworthiness Directive CF–2013–16R1,
effective July 26, 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–2016–9575.
(2) 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 February
3, 2017.
Michael Kaszycki,
Acting Manager, Transport Airplane
Directorate, Aircraft Certification Service.
[FR Doc. 2017–03262 Filed 2–21–17; 8:45 am]
BILLING CODE 4910–13–P
Federal Aviation Administration
14 CFR Part 39
[Docket No. FAA–2016–9553; Directorate
Identifier 2016–NE–29–AD]
RIN 2120–AA64
Airworthiness Directives; Rolls-Royce
Corporation Turbofan Engines
Federal Aviation
Administration (FAA), DOT.
ACTION: Notice of proposed rulemaking
(NPRM).
AGENCY:
We propose to adopt a new
airworthiness directive (AD) for certain
Rolls-Royce Corporation (RRC) AE
3007C and 3007C1 model turbofan
engines. This proposed AD was
prompted by analysis and by cracks
found in the high-pressure turbine
(HPT) wheel during an inspection. This
proposed AD would require
replacement of the affected HPT wheels
at new, lower life limits. We are
proposing this AD to correct the unsafe
condition on these products.
DATES: We must receive comments on
this proposed AD by April 10, 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 Rolls-Royce
Corporation, 450 South Meridian Street,
Mail Code NB–01–06, Indianapolis, IN
46225; phone: 317–230–3774; email:
indy.pubs.services@rolls-royce.com;
Internet: www.rolls-royce.com. You may
view this service information at the
FAA, Engine & Propeller Directorate,
1200 District Avenue, Burlington, MA.
For information on the availability of
this material at the FAA, call 781–238–
7125.
SUMMARY:
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–2016–
VerDate Sep<11>2014
18:06 Feb 21, 2017
Jkt 241001
PO 00000
Frm 00004
Fmt 4702
Sfmt 4702
11327
9553; 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 Office
(phone: 800–647–5527) is in the
ADDRESSES section. Comments will be
available in the AD docket shortly after
receipt.
FOR FURTHER INFORMATION CONTACT: Kyri
Zaroyiannis, Aerospace Engineer,
Chicago Aircraft Certification Office,
Small Airplane Directorate, FAA, 2300
E. Devon Ave., Des Plaines, IL 60018;
phone: 847–294–7836; fax: 847–294–
7834; email: kyri.zaroyiannis@faa.gov.
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–
2016–9553; Directorate Identifier 2016–
NE–29–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 because of 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
We learned from RRC that cracks were
found in the HPT wheel during an
inspection. Investigation determined
that, for certain part number (P/N) HPT
wheels, incomplete shot peening in the
internal shaft fillet resulted in reduced
fatigue life. For other affected P/N HPT
wheels, the polishing wheel used in the
manufacturing process created an
unfavorable surface finish, known as
‘‘Black Wheel Polish,’’ that could lead to
crack initiation. We are, therefore,
lowering the life limits for these affected
HPT wheels. These conditions, if not
corrected, could result in uncontained
failure of the HPT wheels, damage to the
engine, and damage to the airplane.
Related Service Information Under 1
CFR Part 51
We reviewed RRC Alert Service
Bulletin (ASB) AE 3007C–A–72–318,
Revision 2, dated September 23, 2016.
E:\FR\FM\22FEP1.SGM
22FEP1
Agencies
[Federal Register Volume 82, Number 34 (Wednesday, February 22, 2017)]
[Proposed Rules]
[Pages 11325-11327]
From the Federal Register Online via the Government Publishing Office [www.gpo.gov]
[FR Doc No: 2017-03262]
=======================================================================
-----------------------------------------------------------------------
DEPARTMENT OF TRANSPORTATION
Federal Aviation Administration
14 CFR Part 39
[Docket No. FAA-2016-9575; Directorate Identifier 2016-NM-168-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) 2014-20-
09 for certain Bombardier, Inc. Model DHC-8-400 series airplanes. AD
2014-20-09 currently requires an inspection for missing clamps that are
required to provide positive separation between the alternating current
(AC) feeder cables and the hydraulic line of the landing gear alternate
extension, and related investigative and corrective actions if
necessary. Since we issued AD 2014-20-09, it was determined that
certain airplane serial numbers are not subject to the identified
unsafe condition. This proposed AD would remove airplanes from the AD
applicability. We are proposing this AD to address the unsafe condition
on these products.
DATES: We must receive comments on this proposed AD by April 10, 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-2016-
9575; 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: Assata Dessaline, Aerospace Engineer,
Avionics and Services Branch, ANE-172, FAA, New York Aircraft
Certification Office (ACO), 1600 Stewart Avenue, Suite 410, Westbury,
NY 11590; telephone 516-228-7301; fax 516-794-5531.
SUPPLEMENTARY INFORMATION:
Comments Invited
We invite you to send any written relevant data, views, or
arguments about this proposed AD. Send your comments to an address
listed under the ADDRESSES section. Include ``Docket No. FAA-2016-9575;
Directorate Identifier 2016-NM-168-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 September 23, 2014, we issued AD 2014-20-09, Amendment 39-17982
(79 FR 59630, October 3, 2014) (``AD 2014-20-09''), for certain
Bombardier, Inc. Model DHC-8-400 series airplanes. AD 2014-20-09 was
prompted by reports of missing clamps that are required to provide
positive separation between the AC feeder cables and the hydraulic line
of the landing gear alternate extension. AD 2014-20-09 requires an
inspection for missing clamps that are required to provide positive
separation between the AC feeder cables and the hydraulic line of the
landing gear alternate extension, and related investigative and
corrective actions if necessary. We issued AD 2014-20-09 to detect and
correct chafing of the AC feeder cable. A chafed and arcing AC feeder
cable could puncture the adjacent hydraulic line, which, in combination
with the use of the alternate extension system, could result in an in-
flight fire.
Since we issued AD 2014-20-09, it was determined that certain
airplane serial numbers are in a Pre-modification MS 4M153025
configuration, which allows sufficient space between the AC feeder
cables and the landing gear alternate extension hydraulic line do not
pose an in-flight fire risk. Therefore, these airplanes are not subject
to the identified unsafe condition.
Transport Canada Civil Aviation (TCCA), which is the aviation
authority for Canada, has issued Canadian Airworthiness Directive CF-
2013-16R1, effective July 26, 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:
During production checks, it was found that the appropriate
clamps required to provide positive separation between the AC feeder
cables and the hydraulic line of the landing gear alternate
extension were omitted. The AC feeder cable could sag and be in
direct contact with the swage fitting of the landing gear alternate
extension hydraulic line, resulting in chafing of the AC feeder
cable. The chafed and arcing AC feeder cable could puncture the
adjacent hydraulic line. In combination with the use of the
alternate extension system, this could result in an in-flight fire.
The original issue of this [Canadian] AD was issued to mandate
the incorporation of [Bombardier] service bulletin (SB) 84-24-53 to
* * * [do a general visual inspection for the presence of correctly
installed clamps] and rectify, as necessary, for proper clamp
installation.
Bombardier, Inc. has revised SB 84-24-53 to remove serial
numbers 4001 through 4034 from the Effectivity section, as it was
determined that these serial numbers are Pre-Mod MS 4M153025, which
allowed sufficient space between the AC feeder cables and the
landing gear alternate extension hydraulic line to not pose an in-
flight fire risk. Accordingly, revision 1 of this [Canadian] AD is
issued to revise the
[[Page 11326]]
Applicability section to reflect the Effectivity changes in
[Bombardier Service Bulletin] SB 84-24-53 Revision B, dated 10
September 2015.
The related investigative action is a general visual inspection of
the AC power feeder cables and the hydraulic line for damage due to
chafing. The corrective actions include repair of chafed parts and
replacement of missing clamps. 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-2016-9575.
Related Service Information Under 1 CFR Part 51
We reviewed Bombardier Service Bulletin 84-24-53, Revision B, dated
September 10, 2015. The service information describes procedures for a
general visual inspection for installation of clamps between the AC
feeder cables and hydraulic line, and related investigative and
corrective actions. 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 2014-20-09, and retained in this
proposed AD, take about 2 work-hours per product, at an average labor
rate of $85 per work-hour. Required parts cost about $170 per product.
Based on these figures, the estimated cost of the actions that are
required by AD 2014-20-09 is $17,680 per product.
This proposed AD merely removes certain airplanes and, therefore,
adds no new actions or economic burden.
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)
2014-20-09, Amendment 39-17982 (79 FR 59630, October 3, 2014), and
adding the following new AD:
Bombardier, Inc.: Docket No. FAA-2016-9575; Directorate Identifier
2016-NM-168-AD.
(a) Comments Due Date
We must receive comments by April 10, 2017.
(b) Affected ADs
This AD replaces AD 2014-20-09, Amendment 39-17982 (79 FR 59630,
October 3, 2014) (``AD 2014-20-09'').
(c) Applicability
This AD applies to Bombardier, Inc. Model DHC-400, -401, and -
402 airplanes, certificated in any category, serial numbers 4035
through 4347 inclusive.
(d) Subject
Air Transport Association (ATA) of America Code 24, Electrical
power.
(e) Reason
This AD was prompted by reports of missing clamps that are
required to provide positive separation between the alternating
current (AC) feeder cables and the hydraulic line of the landing
gear alternate extension. We are issuing this AD to detect and
correct chafing of the AC feeder cable. A chafed and arcing AC
feeder cable could puncture the adjacent hydraulic line, which, in
combination with the use of the alternate extension system, could
result in an in-flight fire.
(f) Compliance
Comply with this AD within the compliance times specified,
unless already done.
(g) Retained Clamp Inspection, Related Investigative Actions, and
Corrective Actions, With Revised Service Information Having Reduced
Effectivity
This paragraph restates the requirements of paragraph (g) of AD
2014-20-09, with revised service information having reduced
Effectivity. Within 6,000 flight hours or 36 months after November
7, 2014 (the effective date of AD 2014-20-09), whichever occurs
earlier: Do a general visual inspection for correctly installed
clamps between the AC feeder cables and hydraulic line, and do all
applicable related investigative and corrective actions; in
accordance with the Accomplishment Instructions of Bombardier
Service Bulletin 84-24-53, Revision B, dated September 10, 2015. Do
all applicable related investigative and corrective actions before
further flight. After the effective date of this AD, only Bombardier
Service Bulletin 84-24-53, Revision B, dated September 10, 2015, may
be used.
(h) Credit for Previous Actions
This paragraph provides credit for actions required by paragraph
(g) of this AD, if those actions were performed before November 7,
2014 (the effective date of AD 2014-20-09), using Bombardier Service
Bulletin 84-24-53, dated May 11, 2012; or Bombardier Service
Bulletin 84-24-53, Revision A, dated May 16, 2013.
[[Page 11327]]
(i) Other FAA AD Provisions
The following provisions also apply to this AD:
(1) Alternative Methods of Compliance (AMOCs): The Manager, New
York Aircraft Certification Office (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 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: As of the effective date of
this AD, 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 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 Airworthiness Directive CF-2013-16R1, effective July
26, 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-2016-9575.
(2) 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 February 3, 2017.
Michael Kaszycki,
Acting Manager, Transport Airplane Directorate, Aircraft Certification
Service.
[FR Doc. 2017-03262 Filed 2-21-17; 8:45 am]
BILLING CODE 4910-13-P