Airworthiness Directives; Bombardier, Inc. Airplanes, 65617-65619 [2012-26077]
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Federal Register / Vol. 77, No. 210 / Tuesday, October 30, 2012 / Rules and Regulations
(g) Inspection and Replacement of Oxygen
CRA, CL–604 Variant
For CL–604 Variant airplanes with serial
numbers 5701 through 5802 inclusive, 5804
through 5808 inclusive, 5810 through 5816
inclusive, 5819, 5822, and 5823: Within 750
flight hours after the effective date of this AD,
but no later than 6 months after the effective
date of this AD, inspect the serial number of
oxygen pressure regulators having part
number (P/N) 806370–12, in accordance with
the Accomplishment Instructions, paragraph
2.B.(3), of Bombardier Service Bulletin 605–
35–001, Revision 01, dated February 28,
2011. A review of airplane maintenance
records is acceptable in lieu of this
inspection if the part number of the oxygen
pressure regulator can be conclusively
determined from that review.
(1) If any serial number is found that is
listed in table 2 of Section 2.B. of the
Accomplishment Instructions of Bombardier
Service Bulletin 605–35–001, Revision 01,
dated February 28, 2011, before further flight,
replace the affected oxygen CRA, in
accordance with the Accomplishment
Instructions of Bombardier Service Bulletin
605–35–001, Revision 01, dated February 28,
2011.
(2) If any serial number is found that is not
listed in table 2 of Section 2.B. of the
Accomplishment Instructions of Bombardier
Service Bulletin 605–35–001, Revision 01,
dated February 28, 2011, no further action is
required by this paragraph.
wreier-aviles on DSK7SPTVN1PROD with RULES
(h) Inspection and Corrective Action of the
Oxygen CRA Wiring Harness, CL–604
Variant
For CL–604 Variant airplanes with serial
numbers 5701 through 5778 inclusive, 5780
through 5796 inclusive, 5798, 5800 through
5802 inclusive, 5804, 5805, 5808, 5811, and
5813: At the applicable compliance time
specified in paragraph (h)(1) or (h)(2) of this
AD, do a detailed inspection for damaged
wiring (i.e., signs of damaged insulation,
abrasion, or chafing) of the electrical wiring
harness for the oxygen CRA, and protect the
electrical wiring harness, in accordance with
the Accomplishment Instructions of
Bombardier Service Bulletin 605–24–005,
dated January 31, 2011. If any damaged
wiring is found, before further flight, repair
or replace any damaged wiring, in
accordance with a method approved by the
Manager, New York Aircraft Certification
Office (ACO), FAA; or Transport Canada
Civil Aviation (TCCA) (or its delegated
agent).
(1) For airplanes on which the oxygen CRA
must be replaced, as required by paragraph
(g)(1) of this AD: At the time the oxygen CRA
is replaced.
(2) For airplanes other than those
identified in paragraph (h)(1) of this AD:
Within 800 flight hours after the effective
date of this AD.
(i) Credit for Previous Actions
This paragraph provides credit for actions
required by paragraph (g) of this AD, if those
actions were performed before the effective
date of this AD using Bombardier Service
Bulletin 605–35–001, dated January 31, 2011.
VerDate Mar<15>2010
13:15 Oct 29, 2012
Jkt 229001
(j) Parts Installation Limitation, All
Airplanes
For all airplanes (CL–601–3A, CL–601–3R,
and CL–604 Variants): As of the effective date
of this AD, no person may install an oxygen
pressure regulator (P/N 806370–12) having
any serial number listed in table 2 of Section
2.B. of the Accomplishment Instructions of
Bombardier Service Bulletin 605–35–001,
Revision 01, dated February 28, 2011, on any
airplane, unless a suffix ‘‘-A’’ is beside the
serial number.
(k) 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 ACO, send it to ATTN: Program
Manager, Continuing Operational Safety,
FAA, New York ACO, 1600 Stewart Avenue,
Suite 410, Westbury, New York 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. The AMOC
approval letter must specifically reference
this AD.
(2) Airworthy Product: For any requirement
in this AD to obtain corrective actions from
a manufacturer or other source, use these
actions if they are FAA-approved. Corrective
actions are considered FAA-approved if they
are approved by the State of Design Authority
(or their delegated agent). You are required
to assure the product is airworthy before it
is returned to service.
(l) Related Information
Refer to MCAI Canadian Airworthiness
Directive CF–2011–11, dated May 25, 2011,
and the service bulletins identified in
paragraphs (l)(1) and (l)(2) of this AD, for
related information.
(1) Bombardier Service Bulletin 605–24–
005, dated January 31, 2011.
(2) Bombardier Service Bulletin 605–35–
001, Revision 01, dated February 28, 2011.
(m) Material Incorporated by Reference
(1) The Director of the Federal Register
approved the incorporation by reference
(IBR) of the following service information
under 5 U.S.C. 552(a) and 1 CFR part 51.
(2) You must use the following service
information to do the actions required by this
AD, unless the AD specifies otherwise.
(i) Bombardier Service Bulletin 605–24–
005, dated January 31, 2011.
(ii) Bombardier Service Bulletin 605–35–
001, Revision 01, dated February 28, 2011.
(3) For service information identified in
ˆ
this AD, contact Bombardier, Inc., 400 Cote´
Vertu Road West, Dorval, Quebec H4S 1Y9,
Canada; telephone 514–855–5000; fax 514–
855–7401; email
thd.crj@aero.bombardier.com; Internet https://
www.bombardier.com.
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65617
(4) You may review copies of the service
information at the FAA, Transport Airplane
Directorate, 1601 Lind Avenue SW., Renton,
Washington. For information on the
availability of this material at the FAA, call
425–227–1221.
(5) You may also review copies of the
service information that is incorporated by
reference at the National Archives and
Records Administration (NARA). For
information on the availability of this
material at an NARA facility, call 202–741–
6030, or go to https://www.archives.gov/
federal-register/cfr/ibr-locations.html.
Issued in Renton, Washington, on October
11, 2012.
Ali Bahrami,
Manager, Transport Airplane Directorate,
Aircraft Certification Service.
[FR Doc. 2012–26075 Filed 10–29–12; 8:45 am]
BILLING CODE 4910–13–P
DEPARTMENT OF TRANSPORTATION
Federal Aviation Administration
14 CFR Part 39
[Docket No. FAA–2012–0726; Directorate
Identifier 2012–NM–023–AD; Amendment
39–17228; AD 2012–21–12]
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 DHC–8–400
series airplanes. This AD was prompted
by cases of on-ground failure of the
screw cap or end cap of hydraulic
accumulators on other airplane models,
resulting in high-energy impact damage
to adjacent systems and structure. This
AD requires inspecting for a part
number and replacing the affected
parking brake hydraulic accumulator,
and relocating the parking brake
accumulator, on the subject airplanes.
We are issuing this AD to prevent
failure of the screw caps and/or end
caps of the parking brake hydraulic
accumulator, which could result in
damage to the airplane’s primary
structures, with potential adverse effect
on the airplane’s controllability.
DATES: This AD becomes effective
December 4, 2012.
The Director of the Federal Register
approved the incorporation by reference
of certain publications listed in this AD
as of December 4, 2012.
SUMMARY:
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65618
Federal Register / Vol. 77, No. 210 / Tuesday, October 30, 2012 / Rules and Regulations
You may examine the AD
docket on the Internet at https://
www.regulations.gov or in person at the
U.S. Department of Transportation,
Docket Operations, M–30, West
Building Ground Floor, Room W12–140,
1200 New Jersey Avenue SE.,
Washington, DC.
FOR FURTHER INFORMATION CONTACT:
Cesar Gomez, Aerospace Engineer,
Airframe and Mechanical Systems
Branch, ANE–171, FAA, New York
Aircraft Certification Office, 1600
Stewart Avenue, Suite 410, Westbury,
New York 11590; telephone (516) 228–
7318; fax (516) 794–5531; email
Cesar.Gomez@faa.gov.
SUPPLEMENTARY INFORMATION:
FR 45981, August 2, 2012) or on the
determination of the cost to the public.
products identified in this rulemaking
action.
Conclusion
Regulatory Findings
We reviewed the available data and
determined that air safety and the
public interest require adopting the AD
as proposed–except for minor editorial
changes. We have determined that these
minor changes:
• Are consistent with the intent that
was proposed in the NPRM (77 FR
45981, August 2, 2012) for correcting
the unsafe condition; and
• Do not add any additional burden
upon the public than was already
proposed in the NPRM (77 FR 45981,
August 2, 2012).
Discussion
We issued a notice of proposed
rulemaking (NPRM) to amend 14 CFR
part 39 to include an AD that would
apply to the specified products. That
NPRM was published in the Federal
Register on August 2, 2012 (77 FR
45981). That NPRM proposed to correct
an unsafe condition for the specified
products. The Mandatory Continuing
Airworthiness Information (MCAI)
states:
Costs of Compliance
We determined that this AD will not
have federalism implications under
Executive Order 13132. This AD will
not have a substantial direct effect on
the States, on the relationship between
the national government and the States,
or on the distribution of power and
responsibilities among the various
levels of government.
For the reasons discussed above, I
certify that this AD:
1. Is not a ‘‘significant regulatory
action’’ under Executive Order 12866;
2. Is not a ‘‘significant rule’’ under 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.
We prepared a regulatory evaluation
of the estimated costs to comply with
this AD and placed it in the AD docket.
wreier-aviles on DSK7SPTVN1PROD with RULES
ADDRESSES:
Seven cases of on-ground hydraulic
accumulator/screw cap/end cap failure have
been experienced on CL–600–2B19 (CRJ)
aeroplanes, resulting in loss of the associated
hydraulic system and high-energy impact
damage to adjacent systems and structure. To
date, the lowest number of flight cycles
accumulated at the time of failure has been
6991.
Although there have been no failures to
date on any DHC–8 aeroplanes, similar
accumulators to those installed on the CL–
600–2B19, Part Number (P/N) 08–60197–001
(Parking Brake Accumulator), are installed on
the aeroplanes listed in the Applicability
section of this [Canadian] Airworthiness
Directive (AD). It was also found that some
of these accumulators may be affected by
manufacturing non-conformances.
A detailed analysis of the systems and
structure in the potential line of trajectory of
a failed screw cap/end cap for the
accumulator has been conducted. It has been
identified that the worst-case scenarios
would be the damage to the aeroplane’s
primary structures, which could have an
adverse effect on the controllability of the
aeroplane.
This [Canadian] AD mandates the
[inspection for part and serial numbers and]
replacement of the affected hydraulic
accumulators and the relocation of the
parking brake accumulator.
You may obtain further information by
examining the MCAI in the AD docket.
Comments
We gave the public the opportunity to
participate in developing this AD. We
received no comments on the NPRM (77
VerDate Mar<15>2010
13:15 Oct 29, 2012
Jkt 229001
We estimate that this AD will affect
about 83 products of U.S. registry. We
also estimate that it will take about 17
work-hours per product to comply with
the basic requirements of this AD. The
average labor rate is $85 per work-hour.
Required parts will cost about $5,205
per product. Where the service
information lists required parts costs
that are covered under warranty, we
have assumed that there will be no
charge for these parts. As we do not
control warranty coverage for affected
parties, some parties may incur costs
higher than estimated here. Based on
these figures, we estimate the cost of
this AD to the U.S. operators to be
$551,950, or $6,650 per product.
In addition, we estimate that any
necessary follow-on actions would take
about 3 work-hours and require parts
costing $4,643, for a cost of $4,898 per
product. We have no way of
determining the number of products
that may need these actions.
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
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Fmt 4700
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Examining the AD Docket
You may examine the AD docket on
the Internet at https://
www.regulations.gov; or in person at the
Docket Operations office between 9 a.m.
and 5 p.m., Monday through Friday,
except Federal holidays. The AD docket
contains the NPRM (77 FR 45981,
August 2, 2012), 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.
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 AD:
■
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Federal Register / Vol. 77, No. 210 / Tuesday, October 30, 2012 / Rules and Regulations
2012–21–12 Bombardier, Inc.: Amendment
39–17228. Docket No. FAA–2012–0726;
Directorate Identifier 2012–NM–023–AD.
(a) Effective Date
This airworthiness directive (AD) becomes
effective December 4, 2012.
(b) Affected ADs
None.
(c) Applicability
This AD applies to Bombardier, Inc. Model
DHC–8–400, –401, and –402 airplanes,
certificated in any category, serial numbers
4001 through 4346 inclusive.
(d) Subject
Air Transport Association (ATA) of
America Code 32: Landing gear.
(e) Reason
This AD was prompted by cases of onground hydraulic accumulator/screw cap/
end cap failure, resulting in high-energy
impact damage to adjacent systems and
structure. We are issuing this AD to prevent
failure of the screw caps and/or end caps of
the hydraulic and parking brake
accumulators, which could result in damage
to the airplane’s primary structures, with
potential adverse effect on the airplane’s
controllability.
wreier-aviles on DSK7SPTVN1PROD with RULES
(f) Compliance
You are responsible for having the actions
required by this AD performed within the
compliance times specified, unless the
actions have already been done.
(g) Inspection/Replacement of the Parking
Brake Hydraulic Accumulator
For airplanes having serial numbers 4001
through 4337 inclusive: Within 1,200 flight
hours or 6 months after the effective date of
this AD, whichever comes first, inspect the
parking brake hydraulic accumulator to
determine the part number and serial
number, in accordance with the
Accomplishment Instructions of Bombardier
Service Bulletin 84–32–88, dated February
16, 2011.
(1) If the part number of the parking brake
hydraulic accumulator can be determined by
the inspection required by paragraph (g) of
this AD, and is not identified in paragraph
1., Effectivity, of Goodrich Service Bulletin
08 60197 001–32–70 R2, dated February 1,
2011: No further action is required by this
paragraph.
(2) If the part number and serial number of
the parking brake hydraulic accumulator
cannot be determined by the inspection
required by paragraph (g) of this AD, or is
identified in paragraph 1. Effectivity, of
Goodrich Service Bulletin 08 60197 001–32–
70 R2, dated February 1, 2011: Before further
flight, replace the parking brake hydraulic
accumulator, in accordance with the
Accomplishment Instructions of Bombardier
Service Bulletin 84–32–88, dated February
16, 2011.
(h) Relocation of the Parking Brake
Hydraulic Accumulator
(1) For airplanes having serial numbers
4001 through 4068 inclusive, 4070 through
VerDate Mar<15>2010
13:15 Oct 29, 2012
Jkt 229001
4214 inclusive, 4216, 4219 through 4261
inclusive, and 4263 through 4346 inclusive:
Within 6,000 flight hours after the effective
date of this AD, relocate the parking brake
hydraulic accumulator, in accordance with
the Accomplishment Instructions of
Bombardier Service Bulletin 84–32–87,
Revision B, dated November 22, 2011.
(2) Accomplishing the actions specified in
paragraph (h)(1) of this AD in accordance
with previous revisions of Bombardier
Service Bulletin 84–32–87 does not meet the
requirements of paragraph (h)(1) of this AD.
(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), 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, New York 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. The AMOC
approval letter must specifically reference
this AD.
(2) Airworthy Product: For any requirement
in this AD to obtain corrective actions from
a manufacturer or other source, use these
actions if they are FAA-approved. Corrective
actions are considered FAA-approved if they
are approved by the State of Design Authority
(or their delegated agent). You are required
to assure the product is airworthy before it
is returned to service.
(j) Related Information
Refer to MCAI Canadian Airworthiness
Directive CF–2012–04, dated January 13,
2012, and the service information identified
in paragraphs (j)(1) through (j)(3) of this AD,
for related information.
(1) Bombardier Service Bulletin 84–32–87,
Revision B, dated November 22, 2011.
(2) Bombardier Service Bulletin 84–32–88,
dated February 16, 2011.
(3) Goodrich Service Bulletin 08 60197
001–32–70 R2, dated February 1, 2011.
(k) Material Incorporated by Reference
(1) The Director of the Federal Register
approved the incorporation by reference
(IBR) of the service information listed in this
paragraph under 5 U.S.C. 552(a) and 1 CFR
part 51.
(2) You must use this service information
as applicable to do the actions required by
this AD, unless the AD specifies otherwise.
(i) Bombardier Service Bulletin 84–32–87,
Revision B, dated November 22, 2011.
(ii) Bombardier Service Bulletin 84–32–88,
dated February 16, 2011.
(iii) Goodrich Service Bulletin 08 60197
001–32–70 R2, dated February 1, 2011.
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65619
(3) For Bombardier, Inc., 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. For Goodrich
service information identified in this AD,
contact Goodrich Corporation, Landing Gear,
1400 South Service Road, West Oakville L6L
5Y7, Ontario, Canada; telephone 905–825–
1568; email jean.breed@goodrich.com;
Internet https://www.goodrich.com/TechPubs.
(4) You may review copies of the 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.
(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 Renton, Washington, on October
11, 2012.
Ali Bahrami,
Manager, Transport Airplane Directorate,
Aircraft Certification Service.
[FR Doc. 2012–26077 Filed 10–29–12; 8:45 am]
BILLING CODE 4910–13–P
DEPARTMENT OF HOMELAND
SECURITY
Coast Guard
33 CFR Part 117
[Docket No. USCG–2012–0895]
Drawbridge Operation Regulations;
Taunton River, MA
Coast Guard, DHS.
Notice of deviation from
drawbridge regulation; request for
comments.
AGENCY:
ACTION:
The Coast Guard has issued a
temporary deviation from the operating
schedule that governs the Veterans
Memorial Bridge across the Taunton
River, mile 2.1, between Fall River and
Somerset, Massachusetts. This deviation
will test a change to the drawbridge
operation schedule to determine
whether a permanent change to the
schedule is needed. This deviation will
allow us to test an operating schedule to
help determine the hours the bridge
should be crewed. It is expected that
this test will help determine the best
operating schedule that will meet the
present and future needs of navigation.
DATES: This deviation is effective from
December 1, 2012, through May 29,
2013.
SUMMARY:
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]]>Agencies
[Federal Register Volume 77, Number 210 (Tuesday, October 30, 2012)]
[Rules and Regulations]
[Pages 65617-65619]
From the Federal Register Online via the Government Printing Office [www.gpo.gov]
[FR Doc No: 2012-26077]
-----------------------------------------------------------------------
DEPARTMENT OF TRANSPORTATION
Federal Aviation Administration
14 CFR Part 39
[Docket No. FAA-2012-0726; Directorate Identifier 2012-NM-023-AD;
Amendment 39-17228; AD 2012-21-12]
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 DHC-8-400 series airplanes. This AD was prompted
by cases of on-ground failure of the screw cap or end cap of hydraulic
accumulators on other airplane models, resulting in high-energy impact
damage to adjacent systems and structure. This AD requires inspecting
for a part number and replacing the affected parking brake hydraulic
accumulator, and relocating the parking brake accumulator, on the
subject airplanes. We are issuing this AD to prevent failure of the
screw caps and/or end caps of the parking brake hydraulic accumulator,
which could result in damage to the airplane's primary structures, with
potential adverse effect on the airplane's controllability.
DATES: This AD becomes effective December 4, 2012.
The Director of the Federal Register approved the incorporation by
reference of certain publications listed in this AD as of December 4,
2012.
[[Page 65618]]
ADDRESSES: You may examine the AD docket on the Internet at https://www.regulations.gov or in person at the U.S. Department of
Transportation, Docket Operations, M-30, West Building Ground Floor,
Room W12-140, 1200 New Jersey Avenue SE., Washington, DC.
FOR FURTHER INFORMATION CONTACT: Cesar Gomez, Aerospace Engineer,
Airframe and Mechanical Systems Branch, ANE-171, FAA, New York Aircraft
Certification Office, 1600 Stewart Avenue, Suite 410, Westbury, New
York 11590; telephone (516) 228-7318; fax (516) 794-5531; email
Cesar.Gomez@faa.gov.
SUPPLEMENTARY INFORMATION:
Discussion
We issued a notice of proposed rulemaking (NPRM) to amend 14 CFR
part 39 to include an AD that would apply to the specified products.
That NPRM was published in the Federal Register on August 2, 2012 (77
FR 45981). That NPRM proposed to correct an unsafe condition for the
specified products. The Mandatory Continuing Airworthiness Information
(MCAI) states:
Seven cases of on-ground hydraulic accumulator/screw cap/end cap
failure have been experienced on CL-600-2B19 (CRJ) aeroplanes,
resulting in loss of the associated hydraulic system and high-energy
impact damage to adjacent systems and structure. To date, the lowest
number of flight cycles accumulated at the time of failure has been
6991.
Although there have been no failures to date on any DHC-8
aeroplanes, similar accumulators to those installed on the CL-600-
2B19, Part Number (P/N) 08-60197-001 (Parking Brake Accumulator),
are installed on the aeroplanes listed in the Applicability section
of this [Canadian] Airworthiness Directive (AD). It was also found
that some of these accumulators may be affected by manufacturing
non-conformances.
A detailed analysis of the systems and structure in the
potential line of trajectory of a failed screw cap/end cap for the
accumulator has been conducted. It has been identified that the
worst-case scenarios would be the damage to the aeroplane's primary
structures, which could have an adverse effect on the
controllability of the aeroplane.
This [Canadian] AD mandates the [inspection for part and serial
numbers and] replacement of the affected hydraulic accumulators and
the relocation of the parking brake accumulator.
You may obtain further information by examining the MCAI in the AD
docket.
Comments
We gave the public the opportunity to participate in developing
this AD. We received no comments on the NPRM (77 FR 45981, August 2,
2012) or on the determination of the cost to the public.
Conclusion
We reviewed the available data and determined that air safety and
the public interest require adopting the AD as proposed-except for
minor editorial changes. We have determined that these minor changes:
Are consistent with the intent that was proposed in the
NPRM (77 FR 45981, August 2, 2012) for correcting the unsafe condition;
and
Do not add any additional burden upon the public than was
already proposed in the NPRM (77 FR 45981, August 2, 2012).
Costs of Compliance
We estimate that this AD will affect about 83 products of U.S.
registry. We also estimate that it will take about 17 work-hours per
product to comply with the basic requirements of this AD. The average
labor rate is $85 per work-hour. Required parts will cost about $5,205
per product. Where the service information lists required parts costs
that are covered under warranty, we have assumed that there will be no
charge for these parts. As we do not control warranty coverage for
affected parties, some parties may incur costs higher than estimated
here. Based on these figures, we estimate the cost of this AD to the
U.S. operators to be $551,950, or $6,650 per product.
In addition, we estimate that any necessary follow-on actions would
take about 3 work-hours and require parts costing $4,643, for a cost of
$4,898 per product. We have no way of determining the number of
products that may need these actions.
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 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.
We prepared a regulatory evaluation of the estimated costs to
comply with this AD and placed it in the AD docket.
Examining the AD Docket
You may examine the AD docket on the Internet at https://www.regulations.gov; or in person at the Docket Operations office
between 9 a.m. and 5 p.m., Monday through Friday, except Federal
holidays. The AD docket contains the NPRM (77 FR 45981, August 2,
2012), 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.
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 AD:
[[Page 65619]]
2012-21-12 Bombardier, Inc.: Amendment 39-17228. Docket No. FAA-
2012-0726; Directorate Identifier 2012-NM-023-AD.
(a) Effective Date
This airworthiness directive (AD) becomes effective December 4,
2012.
(b) Affected ADs
None.
(c) Applicability
This AD applies to Bombardier, Inc. Model DHC-8-400, -401, and -
402 airplanes, certificated in any category, serial numbers 4001
through 4346 inclusive.
(d) Subject
Air Transport Association (ATA) of America Code 32: Landing
gear.
(e) Reason
This AD was prompted by cases of on-ground hydraulic
accumulator/screw cap/end cap failure, resulting in high-energy
impact damage to adjacent systems and structure. We are issuing this
AD to prevent failure of the screw caps and/or end caps of the
hydraulic and parking brake accumulators, which could result in
damage to the airplane's primary structures, with potential adverse
effect on the airplane's controllability.
(f) Compliance
You are responsible for having the actions required by this AD
performed within the compliance times specified, unless the actions
have already been done.
(g) Inspection/Replacement of the Parking Brake Hydraulic Accumulator
For airplanes having serial numbers 4001 through 4337 inclusive:
Within 1,200 flight hours or 6 months after the effective date of
this AD, whichever comes first, inspect the parking brake hydraulic
accumulator to determine the part number and serial number, in
accordance with the Accomplishment Instructions of Bombardier
Service Bulletin 84-32-88, dated February 16, 2011.
(1) If the part number of the parking brake hydraulic
accumulator can be determined by the inspection required by
paragraph (g) of this AD, and is not identified in paragraph 1.,
Effectivity, of Goodrich Service Bulletin 08 60197 001-32-70 R2,
dated February 1, 2011: No further action is required by this
paragraph.
(2) If the part number and serial number of the parking brake
hydraulic accumulator cannot be determined by the inspection
required by paragraph (g) of this AD, or is identified in paragraph
1. Effectivity, of Goodrich Service Bulletin 08 60197 001-32-70 R2,
dated February 1, 2011: Before further flight, replace the parking
brake hydraulic accumulator, in accordance with the Accomplishment
Instructions of Bombardier Service Bulletin 84-32-88, dated February
16, 2011.
(h) Relocation of the Parking Brake Hydraulic Accumulator
(1) For airplanes having serial numbers 4001 through 4068
inclusive, 4070 through 4214 inclusive, 4216, 4219 through 4261
inclusive, and 4263 through 4346 inclusive: Within 6,000 flight
hours after the effective date of this AD, relocate the parking
brake hydraulic accumulator, in accordance with the Accomplishment
Instructions of Bombardier Service Bulletin 84-32-87, Revision B,
dated November 22, 2011.
(2) Accomplishing the actions specified in paragraph (h)(1) of
this AD in accordance with previous revisions of Bombardier Service
Bulletin 84-32-87 does not meet the requirements of paragraph (h)(1)
of this AD.
(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), 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, New
York 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. The
AMOC approval letter must specifically reference this AD.
(2) Airworthy Product: For any requirement in this AD to obtain
corrective actions from a manufacturer or other source, use these
actions if they are FAA-approved. Corrective actions are considered
FAA-approved if they are approved by the State of Design Authority
(or their delegated agent). You are required to assure the product
is airworthy before it is returned to service.
(j) Related Information
Refer to MCAI Canadian Airworthiness Directive CF-2012-04, dated
January 13, 2012, and the service information identified in
paragraphs (j)(1) through (j)(3) of this AD, for related
information.
(1) Bombardier Service Bulletin 84-32-87, Revision B, dated
November 22, 2011.
(2) Bombardier Service Bulletin 84-32-88, dated February 16,
2011.
(3) Goodrich Service Bulletin 08 60197 001-32-70 R2, dated
February 1, 2011.
(k) Material Incorporated by Reference
(1) The Director of the Federal Register approved the
incorporation by reference (IBR) of the service information listed
in this paragraph under 5 U.S.C. 552(a) and 1 CFR part 51.
(2) You must use this service information as applicable to do
the actions required by this AD, unless the AD specifies otherwise.
(i) Bombardier Service Bulletin 84-32-87, Revision B, dated
November 22, 2011.
(ii) Bombardier Service Bulletin 84-32-88, dated February 16,
2011.
(iii) Goodrich Service Bulletin 08 60197 001-32-70 R2, dated
February 1, 2011.
(3) For Bombardier, Inc., 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. For Goodrich service information
identified in this AD, contact Goodrich Corporation, Landing Gear,
1400 South Service Road, West Oakville L6L 5Y7, Ontario, Canada;
telephone 905-825-1568; email jean.breed@goodrich.com; Internet
https://www.goodrich.com/TechPubs.
(4) You may review copies of the 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.
(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 Renton, Washington, on October 11, 2012.
Ali Bahrami,
Manager, Transport Airplane Directorate, Aircraft Certification
Service.
[FR Doc. 2012-26077 Filed 10-29-12; 8:45 am]
BILLING CODE 4910-13-P
