Airworthiness Directives; Bombardier, Inc. Model BD-700-1A10 and BD-700-1A11 Airplanes, 68690-68693 [2010-28174]
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68690
Federal Register / Vol. 75, No. 216 / Tuesday, November 9, 2010 / Rules and Regulations
Alternative Methods of Compliance
(AMOCs)
DEPARTMENT OF TRANSPORTATION
(h)(1) The Manager, Seattle 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. Send information to ATTN: Tak
Kobayashi, Aerospace Engineer, Propulsion
Branch, ANM–140S, FAA, Seattle Aircraft
Certification Office, 1601 Lind Avenue, SW.,
Renton, Washington 98057–3356; telephone
(425) 917–6499; fax (425) 917–6590.
Information may be e-mailed to: 9-ANMSeattle-ACO-AMOC-Requests@faa.gov.
(2) To request a different method of
compliance or a different compliance time
for this AD, follow the procedures in 14 CFR
39.19. Before using any approved AMOC on
any airplane to which the AMOC applies,
notify your principal maintenance inspector
(PMI) or principal avionics inspector (PAI),
as appropriate, or lacking a principal
inspector, your local Flight Standards District
Office. The AMOC approval letter must
specifically reference this AD.
Federal Aviation Administration
Material Incorporated by Reference
wwoods2 on DSK1DXX6B1PROD with RULES_PART 1
(i) You must use Boeing Special Attention
Service Bulletin 757–57–0070, dated January
27, 2010, to do the actions required by this
AD, unless the AD specifies otherwise.
(1) The Director of the Federal Register
approved the incorporation by reference of
this service information under 5 U.S.C.
552(a) and 1 CFR part 51.
(2) For service information identified in
this AD, contact Boeing Commercial
Airplanes, Attention: Data & Services
Management, P.O. Box 3707, MC 2H–65,
Seattle, Washington 98124–2207; telephone
206–544–5000, extension 1; fax 206–766–
5680; e-mail me.boecom@boeing.com;
Internet https://www.myboeingfleet.com.
(3) 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.
(4) 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 NARA, call 202–741–6030, or go
to: https://www.archives.gov/federal_register/
code_of_federal_regulations/ibr_locations.
html.
Issued in Renton, Washington, on October
23, 2010.
Michael Kaszycki,
Acting Manager, Transport Airplane
Directorate, Aircraft Certification Service.
[FR Doc. 2010–28160 Filed 11–8–10; 8:45 am]
BILLING CODE 4910–13–P
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14 CFR Part 39
[Docket No. FAA–2010–0548; Directorate
Identifier 2010–NM–041–AD; Amendment
39–16497; AD 2010–23–08]
RIN 2120–AA64
Airworthiness Directives; Bombardier,
Inc. Model BD–700–1A10 and BD–700–
1A11 Airplanes
Federal Aviation
Administration (FAA), Department of
Transportation (DOT).
ACTION: Final rule.
AGENCY:
We are adopting a new
airworthiness directive (AD) for the
products listed above. This AD results
from mandatory continuing
airworthiness information (MCAI)
originated by an aviation authority of
another country to identify and correct
an unsafe condition on an aviation
product. The MCAI describes the unsafe
condition as:
SUMMARY:
Following five reported cases of balance
washer screw failure on similar RATs [ram
air turbines]/air driven generators installed
on other aircraft types, an investigation
* * * determined that a specific batch of the
screws had a metallographic non-conformity
that increased their susceptibility to brittle
fracture. * * *
Failure of a balance washer screw can
result in loss of the related balance washer,
with consequent turbine imbalance. Such
imbalance could potentially result in RAT
structural failure (including blade failure),
loss of RAT electrical power and structural
damage to the aircraft and, if deployment was
activated by a dual engine shutdown, could
also result in loss of hydraulic power for the
flight controls [and consequent reduced
ability of the flightcrew to maintain the safe
flight and landing of the airplane].
*
*
*
*
*
We are issuing this AD to require
actions to correct the unsafe condition
on these products.
DATES: This AD becomes effective
December 14, 2010.
The Director of the Federal Register
approved the incorporation by reference
of certain publications listed in this AD
as of December 14, 2010.
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:
Christopher Alfano, Aerospace
PO 00000
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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–
7340; fax (516) 794–5531.
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 June 4, 2010 (75 FR 31731).
That NPRM proposed to correct an
unsafe condition for the specified
products. The MCAI states:
Following five reported cases of balance
washer screw failure on similar RATs [ram
air turbine]/air driven generators installed on
other aircraft types, an investigation by
Hamilton Sundstrand determined that a
specific batch of the screws had a
metallographic non-conformity that
increased their susceptibility to brittle
fracture. Subsequently, it was established
that 187 RATs [Part Number (P/N) GL456–
1101–7 and Hamilton Sundstrand P/Ns in the
762826 series] had non-conforming screws
installed either during production or possibly
during maintenance or repair at Hamilton
Sundstrand repair stations.
Failure of a balance washer screw can
result in loss of the related balance washer,
with consequent turbine imbalance. Such
imbalance could potentially result in RAT
structural failure (including blade failure),
loss of RAT electrical power and structural
damage to the aircraft and, if deployment was
activated by a dual engine shutdown, could
also result in loss of hydraulic power for the
flight controls [and consequent reduced
ability of the flightcrew to maintain the safe
flight and landing of the airplane].
This [Canadian] directive mandates
checking of the RAT and replacing the
balance washer screws, if required. It also
prohibits future installation of unmodified
RATs.
You may obtain further information by
examining the MCAI in the AD docket.
Actions Since NPRM Was Issued
We have determined that this AD
should refer to the latest service
information. We have reviewed
Bombardier Service Bulletin 700–1A11–
24–014, Revision 02, dated March 15,
2010; and Bombardier Service Bulletin
700–24–075, Revision 02, dated March
15, 2010; which introduce minor
changes, but do not add any additional
work. We have revised this final rule to
include the latest version of the
applicable Bombardier service
information and to provide credit for
work done before the effective date of
this AD, in accordance with the
previous revisions of the service
information.
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Federal Register / Vol. 75, No. 216 / Tuesday, November 9, 2010 / Rules and Regulations
Comments
We gave the public the opportunity to
participate in developing this AD. We
received no comments on the NPRM 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
with the changes described previously.
We determined that these changes will
not increase the economic burden on
any operator or increase the scope of the
AD.
Differences Between This AD and the
MCAI or Service Information
We have reviewed the MCAI and
related service information and, in
general, agree with their substance. But
we might have found it necessary to use
different words from those in the MCAI
to ensure the AD is clear for U.S.
operators and is enforceable. In making
these changes, we do not intend to differ
substantively from the information
provided in the MCAI and related
service information.
We might also have required different
actions in this AD from those in the
MCAI in order to follow our FAA
policies. Any such differences are
highlighted in a NOTE within the AD.
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Costs of Compliance
We estimate that this AD will affect
115 products of U.S. registry. We also
estimate that it will take about 1 workhour per product to comply with the
basic requirements of this AD. The
average labor rate is $85 per work-hour.
Based on these figures, we estimate the
cost of this AD to the U.S. operators to
be $9,775, or $85 per product.
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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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 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); and
3. 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, 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:
■
2010–23–08 Bombardier, Inc.: Amendment
39–16497. Docket No. FAA–2010–0548;
Directorate Identifier 2010–NM–041–AD.
PO 00000
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68691
Effective Date
(a) This airworthiness directive (AD)
becomes effective December 14, 2010.
Affected ADs
(b) None.
Applicability
(c) This AD applies to Bombardier, Inc.
Model BD–700–1A10 and BD–700–1A11
airplanes, serial numbers 9002 and
subsequent; certificated in any category.
Subject
(d) Air Transport Association (ATA) of
America Code 24: Electrical power.
Reason
(e) The mandatory continuing
airworthiness information (MCAI) states:
Following five reported cases of balance
washer screw failure on similar RATs [ram
air turbines]/air driven generators installed
on other aircraft types, an investigation by
Hamilton Sundstrand determined that a
specific batch of the screws had a
metallographic non-conformity that
increased their susceptibility to brittle
fracture. Subsequently, it was established
that 187 RATs [Part Number (P/N) GL456–
1101–7 and Hamilton Sundstrand P/Ns in the
762826 series] had non-conforming screws
installed either during production or possibly
during maintenance or repair at Hamilton
Sundstrand repair stations.
Failure of a balance washer screw can
result in loss of the related balance washer,
with consequent turbine imbalance. Such
imbalance could potentially result in RAT
structural failure (including blade failure),
loss of RAT electrical power and structural
damage to the aircraft and, if deployment was
activated by a dual engine shutdown, could
also result in loss of hydraulic power for the
flight controls [and consequent reduced
ability of the flightcrew to maintain the safe
flight and landing of the airplane].
This [Canadian] directive mandates
checking of the RAT and replacing the
balance washer screws, if required. It also
prohibits future installation of unmodified
RATs.
Compliance
(f) You are responsible for having the
actions required by this AD performed within
the compliance times specified, unless the
actions have already been done.
Inspection
(g) For airplanes having serial numbers
9002 through 9380 inclusive: At the earliest
of the times identified in paragraphs (g)(1),
(g)(2), (g)(3) and (g)(4) of this AD, inspect to
determine the serial number of the installed
ram air turbine (RAT), in accordance with the
Accomplishment Instructions of the
applicable service bulletin listed in Table 1
of this AD. This inspection may be
conducted visually, which requires lowering
the RAT. A review of airplane maintenance
records is acceptable in lieu of this
inspection if the serial number of the RAT
can be conclusively determined from that
review.
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Federal Register / Vol. 75, No. 216 / Tuesday, November 9, 2010 / Rules and Regulations
(1) Within 500 flight hours or 24 months
after the effective date of this AD, whichever
occurs first; or
(2) Prior to the next in-flight or on-ground
functional test of the RAT, whichever occurs
first after the effective date of this AD; or
(3) Prior to the next in-flight or on-ground
operational test of the RAT, whichever
occurs first after the effective date of this AD;
or
(4) Prior to the next scheduled RAT inflight deployment.
(h) If the RAT serial number, as determined
in paragraph (g) of this AD, is not listed in
paragraph 1.A of the applicable service
bulletin listed in Table 1 of this AD, no
further action is required by this AD, except
as required by paragraph (j) of this AD.
TABLE 1—SERVICE BULLETINS
Model—
Bombardier Service Bulletin—
BD–700–1A11 .........................................................
BD–700–1A10 .........................................................
700–1A11–24–014 .................................................
700–24–075 ...........................................................
(i) If the RAT serial number, determined in
paragraph (g) of this AD, is listed in
paragraph 1.A. of the applicable service
bulletin listed in Table 1 of this AD, before
further flight, inspect to determine if the
symbol ‘‘24–7’’ is marked on the RAT
identification plate, in accordance with the
Accomplishment Instructions of the
applicable service bulletin listed in Table 1
of this AD. A review of airplane maintenance
records is acceptable in lieu of this
inspection if the symbol ‘‘24–7’’ mark can be
conclusively determined from that review.
(1) If the symbol ‘‘24–7’’ is marked on the
RAT identification plate, the balance washer
screws have already been replaced and no
Revision—
further action is required by this AD, except
as required by paragraph (j) of this AD.
(2) If the symbol ‘‘24–7’’ is not marked on
the RAT identification plate, before further
flight, replace all balance washer screws with
new balance washer screws, part number
MS24667–14, and mark the RAT
identification plate with the symbol ‘‘24–7,’’
in accordance with the Accomplishment
Instructions of the applicable service bulletin
listed in Table 1 of this AD.
(j) For all airplanes: As of the effective date
of this AD, no person may install on any
airplane a replacement or spare RAT (P/N
GL456–1101–7; Hamilton Sundstrand P/Ns
in the 762826 series) having one of the S/Ns
Dated—
02
02
March 15, 2010.
March 15, 2010.
listed in paragraph 1.A. of the applicable
service bulletin listed in Table 1 of this AD
unless the balance washer screws have
already been replaced and the symbol
‘‘24–7’’ is marked on the RAT identification
plate.
Credit for Actions Accomplished in
Accordance With Previous Service
Information
(k) Actions accomplished before the
effective date of this AD, in accordance with
the applicable service bulletin listed in
Table 2 of this AD, are considered acceptable
for compliance with the corresponding action
specified in this AD.
TABLE 2—CREDIT SERVICE BULLETINS
Model—
Bombardier Service Bulletin—
BD–700–1A11 .........................................................
BD–700–1A10 .........................................................
700–1A11–24–014 .................................................
700–24–075 ...........................................................
FAA AD Differences
Note 1: This AD differs from the MCAI
and/or service information as follows:
Although Canadian Airworthiness Directive
CF–2010–01, dated January 18, 2010,
recommends accomplishing the visual
inspection prior to the next scheduled inflight operational test of the RAT, we have
determined that interval would not address
the identified unsafe condition soon enough
to ensure an adequate level of safety for the
affected fleet in light of the degree of urgency
associated with the subject unsafe condition.
This difference has been coordinated with
Transport Canada Civil Aviation (TCCA).
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Other FAA AD Provisions
(l) 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. Send information 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
on any airplane to which the AMOC applies,
notify your principal maintenance inspector
(PMI) or principal avionics inspector (PAI),
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Revision—
as appropriate, or lacking a principal
inspector, your local Flight Standards 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.
(3) Reporting Requirements: For any
reporting requirement in this AD, under the
provisions of the Paperwork Reduction Act
(44 U.S.C. 3501 et seq.), the Office of
Management and Budget (OMB) has
approved the information collection
requirements and has assigned OMB Control
Number 2120–0056.
Related Information
(m) Refer to MCAI TCCA Airworthiness
Directive CF–2010–01, dated January 18,
2010; and Bombardier Service Bulletins
700–24–075, Revision 02, dated March 15,
2010, and 700–1A11–24–014, Revision 02,
dated March 15, 2010; for related
information.
Material Incorporated by Reference
(n) You must use Bombardier Service
Bulletins 700–24–075, Revision 02, dated
PO 00000
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Dated—
01
01
July 15, 2009.
July 15, 2009.
March 15, 2010; or Bombardier Service
Bulletin 700–1A11–24–014, Revision 02,
dated March 15, 2010; as applicable; to do
the actions required by this AD, unless the
AD specifies otherwise.
(1) The Director of the Federal Register
approved the incorporation by reference of
this service information under 5 U.S.C.
552(a) and 1 CFR part 51.
(2) 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; e-mail
thd.crj@aero.bombardier.com; Internet https://
www.bombardier.com.
(3) 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.
(4) 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 NARA, call 202–741–6030, or go
to: https://www.archives.gov/federal_register/
code_of_federal_regulations/
ibr_locations.html.
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Federal Register / Vol. 75, No. 216 / Tuesday, November 9, 2010 / Rules and Regulations
Issued in Renton, Washington on October
21, 2010.
Michael Kaszycki,
Acting Manager, Transport Airplane
Directorate, Aircraft Certification Service.
[FR Doc. 2010–28174 Filed 11–8–10; 8:45 am]
BILLING CODE 4910–13–P
DEPARTMENT OF TRANSPORTATION
Federal Aviation Administration
14 CFR Part 39
[Docket No. FAA–2010–1102; Directorate
Identifier 2010–NM–016–AD; Amendment
39–16507; AD 2010–23–18]
RIN 2120–AA64
Airworthiness Directives; Airbus Model
A380–800 Series Airplanes
Federal Aviation
Administration (FAA), Department of
Transportation (DOT).
ACTION: Final rule; request for
comments.
AGENCY:
We are adopting a new
airworthiness directive (AD) for the
products listed above. This AD results
from mandatory continuing
airworthiness information (MCAI)
originated by an aviation authority of
another country to identify and correct
an unsafe condition on an aviation
product. The MCAI describes the unsafe
condition as:
SUMMARY:
wwoods2 on DSK1DXX6B1PROD with RULES_PART 1
During inspection in production and on inservice aircraft, a number of OverHeat
Detection System (OHDS) installation nonconformities have been identified along the
bleed air ducting.
Some installation issues which may lead to
a degraded leak detection capability have
been reported. In case of hot air leakage, the
potential degradation of the OHDS would not
allow preventing damages to structure or
components, and therefore could lead to an
unsafe condition.
*
*
*
*
*
Nonconforming installation or a failure
of the OHDS could allow undetected
leakage of bleed air from the hot engine/
auxiliary power unit causing damage to
the airplane structure and various
airplane components and systems. This
AD requires actions that are intended to
address the unsafe condition described
in the MCAI.
DATES: This AD becomes effective
November 24, 2010.
The Director of the Federal Register
approved the incorporation by reference
of a certain publication listed in the AD
as of November 24, 2010.
We must receive comments on this
AD by December 27, 2010.
ADDRESSES: You may send comments by
any of the following methods:
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14:45 Nov 08, 2010
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• 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: U.S. Department of
Transportation, Docket Operations,
M–30, West Building Ground Floor,
Room W12–40, 1200 New Jersey
Avenue, SE., Washington, DC, between
9 a.m. and 5 p.m., Monday through
Friday, except Federal holidays.
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 this 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:
Todd Thompson, Aerospace Engineer,
Aerospace Engineer, International
Branch, ANM–116, Transport Airplane
Directorate, FAA, 1601 Lind Avenue,
SW., Renton, Washington 98057–3356;
telephone (425) 227–1175; fax (425)
227–1149.
SUPPLEMENTARY INFORMATION:
Discussion
The European Aviation Safety Agency
(EASA), which is the Technical Agent
for the Member States of the European
Community, has issued EASA
Airworthiness Directive 2009–0265,
dated December 16, 2009 (referred to
after this as ‘‘the MCAI’’), to correct an
unsafe condition for the specified
products. The MCAI states:
During inspection in production and on inservice aircraft, a number of OverHeat
Detection System (OHDS) installation nonconformities have been identified along the
bleed air ducting.
Some installation issues which may lead to
a degraded leak detection capability have
been reported. In case of hot air leakage, the
potential degradation of the OHDS would not
allow preventing damages to structure or
components, and therefore could lead to an
unsafe condition.
To ensure that in-service aeroplanes are
free of such non-conformities, EASA AD
2009–0066 required an inspection of the
OHDS installation along the bleed air ducting
and, in case of findings, to bring back the
installation into the compliant configuration.
That AD required a complete inspection for
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68693
some MSN, and a partial inspection for MSN
15, 20 and 22. This partial inspection has
now been assessed to be insufficient to cover
the unsafe condition.
This [EASA] AD, which supersedes EASA
AD 2009–0066, requires to perform:
• An additional inspection on MSN 15, 20
and 22 to render it complete, and
• A complete inspection on additional
MSN.
Nonconforming installation or a failure
of the OHDS could allow undetected
leakage of bleed air from the hot engine/
auxiliary power unit causing damage to
the airplane structure and various
airplane components and systems. You
may obtain further information by
examining the MCAI in the AD docket.
Relevant Service Information
Airbus has issued Mandatory Service
Bulletin A380–36–8009, including
Service Bulletin Report Sheet, dated
December 7, 2009. The actions
described in this service information are
intended to correct the unsafe condition
identified in the MCAI.
FAA’s Determination and Requirements
of This 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 issuing this
AD because we evaluated all pertinent
information and determined the unsafe
condition exists and is likely to exist or
develop on other products of the same
type design.
There are no products of this type
currently registered in the United States.
However, this rule is necessary to
ensure that the described unsafe
condition is addressed if any of these
products are placed on the U.S. Register
in the future.
Differences Between the AD and the
MCAI or Service Information
We have reviewed the MCAI and
related service information and, in
general, agree with their substance. But
we might have found it necessary to use
different words from those in the MCAI
to ensure the AD is clear for U.S.
operators and is enforceable. In making
these changes, we do not intend to differ
substantively from the information
provided in the MCAI and related
service information.
We might also have required different
actions in this AD from those in the
MCAI in order to follow FAA policies.
E:\FR\FM\09NOR1.SGM
09NOR1
]]>Agencies
[Federal Register Volume 75, Number 216 (Tuesday, November 9, 2010)]
[Rules and Regulations]
[Pages 68690-68693]
From the Federal Register Online via the Government Printing Office [www.gpo.gov]
[FR Doc No: 2010-28174]
-----------------------------------------------------------------------
DEPARTMENT OF TRANSPORTATION
Federal Aviation Administration
14 CFR Part 39
[Docket No. FAA-2010-0548; Directorate Identifier 2010-NM-041-AD;
Amendment 39-16497; AD 2010-23-08]
RIN 2120-AA64
Airworthiness Directives; Bombardier, Inc. Model BD-700-1A10 and
BD-700-1A11 Airplanes
AGENCY: Federal Aviation Administration (FAA), Department of
Transportation (DOT).
ACTION: Final rule.
-----------------------------------------------------------------------
SUMMARY: We are adopting a new airworthiness directive (AD) for the
products listed above. This AD results from mandatory continuing
airworthiness information (MCAI) originated by an aviation authority of
another country to identify and correct an unsafe condition on an
aviation product. The MCAI describes the unsafe condition as:
Following five reported cases of balance washer screw failure on
similar RATs [ram air turbines]/air driven generators installed on
other aircraft types, an investigation * * * determined that a
specific batch of the screws had a metallographic non-conformity
that increased their susceptibility to brittle fracture. * * *
Failure of a balance washer screw can result in loss of the
related balance washer, with consequent turbine imbalance. Such
imbalance could potentially result in RAT structural failure
(including blade failure), loss of RAT electrical power and
structural damage to the aircraft and, if deployment was activated
by a dual engine shutdown, could also result in loss of hydraulic
power for the flight controls [and consequent reduced ability of the
flightcrew to maintain the safe flight and landing of the airplane].
* * * * *
We are issuing this AD to require actions to correct the unsafe
condition on these products.
DATES: This AD becomes effective December 14, 2010.
The Director of the Federal Register approved the incorporation by
reference of certain publications listed in this AD as of December 14,
2010.
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: Christopher Alfano, 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) 228-7340; fax (516) 794-5531.
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 June 4, 2010 (75 FR
31731). That NPRM proposed to correct an unsafe condition for the
specified products. The MCAI states:
Following five reported cases of balance washer screw failure on
similar RATs [ram air turbine]/air driven generators installed on
other aircraft types, an investigation by Hamilton Sundstrand
determined that a specific batch of the screws had a metallographic
non-conformity that increased their susceptibility to brittle
fracture. Subsequently, it was established that 187 RATs [Part
Number (P/N) GL456-1101-7 and Hamilton Sundstrand P/Ns in the 762826
series] had non-conforming screws installed either during production
or possibly during maintenance or repair at Hamilton Sundstrand
repair stations.
Failure of a balance washer screw can result in loss of the
related balance washer, with consequent turbine imbalance. Such
imbalance could potentially result in RAT structural failure
(including blade failure), loss of RAT electrical power and
structural damage to the aircraft and, if deployment was activated
by a dual engine shutdown, could also result in loss of hydraulic
power for the flight controls [and consequent reduced ability of the
flightcrew to maintain the safe flight and landing of the airplane].
This [Canadian] directive mandates checking of the RAT and
replacing the balance washer screws, if required. It also prohibits
future installation of unmodified RATs.
You may obtain further information by examining the MCAI in the AD
docket.
Actions Since NPRM Was Issued
We have determined that this AD should refer to the latest service
information. We have reviewed Bombardier Service Bulletin 700-1A11-24-
014, Revision 02, dated March 15, 2010; and Bombardier Service Bulletin
700-24-075, Revision 02, dated March 15, 2010; which introduce minor
changes, but do not add any additional work. We have revised this final
rule to include the latest version of the applicable Bombardier service
information and to provide credit for work done before the effective
date of this AD, in accordance with the previous revisions of the
service information.
[[Page 68691]]
Comments
We gave the public the opportunity to participate in developing
this AD. We received no comments on the NPRM 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 with the changes described
previously. We determined that these changes will not increase the
economic burden on any operator or increase the scope of the AD.
Differences Between This AD and the MCAI or Service Information
We have reviewed the MCAI and related service information and, in
general, agree with their substance. But we might have found it
necessary to use different words from those in the MCAI to ensure the
AD is clear for U.S. operators and is enforceable. In making these
changes, we do not intend to differ substantively from the information
provided in the MCAI and related service information.
We might also have required different actions in this AD from those
in the MCAI in order to follow our FAA policies. Any such differences
are highlighted in a NOTE within the AD.
Costs of Compliance
We estimate that this AD will affect 115 products of U.S. registry.
We also estimate that it will take about 1 work-hour per product to
comply with the basic requirements of this AD. The average labor rate
is $85 per work-hour. Based on these figures, we estimate the cost of
this AD to the U.S. operators to be $9,775, or $85 per product.
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 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); and
3. 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, 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
0
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:
2010-23-08 Bombardier, Inc.: Amendment 39-16497. Docket No. FAA-
2010-0548; Directorate Identifier 2010-NM-041-AD.
Effective Date
(a) This airworthiness directive (AD) becomes effective December
14, 2010.
Affected ADs
(b) None.
Applicability
(c) This AD applies to Bombardier, Inc. Model BD-700-1A10 and
BD-700-1A11 airplanes, serial numbers 9002 and subsequent;
certificated in any category.
Subject
(d) Air Transport Association (ATA) of America Code 24:
Electrical power.
Reason
(e) The mandatory continuing airworthiness information (MCAI)
states:
Following five reported cases of balance washer screw failure on
similar RATs [ram air turbines]/air driven generators installed on
other aircraft types, an investigation by Hamilton Sundstrand
determined that a specific batch of the screws had a metallographic
non-conformity that increased their susceptibility to brittle
fracture. Subsequently, it was established that 187 RATs [Part
Number (P/N) GL456-1101-7 and Hamilton Sundstrand P/Ns in the 762826
series] had non-conforming screws installed either during production
or possibly during maintenance or repair at Hamilton Sundstrand
repair stations.
Failure of a balance washer screw can result in loss of the
related balance washer, with consequent turbine imbalance. Such
imbalance could potentially result in RAT structural failure
(including blade failure), loss of RAT electrical power and
structural damage to the aircraft and, if deployment was activated
by a dual engine shutdown, could also result in loss of hydraulic
power for the flight controls [and consequent reduced ability of the
flightcrew to maintain the safe flight and landing of the airplane].
This [Canadian] directive mandates checking of the RAT and
replacing the balance washer screws, if required. It also prohibits
future installation of unmodified RATs.
Compliance
(f) You are responsible for having the actions required by this
AD performed within the compliance times specified, unless the
actions have already been done.
Inspection
(g) For airplanes having serial numbers 9002 through 9380
inclusive: At the earliest of the times identified in paragraphs
(g)(1), (g)(2), (g)(3) and (g)(4) of this AD, inspect to determine
the serial number of the installed ram air turbine (RAT), in
accordance with the Accomplishment Instructions of the applicable
service bulletin listed in Table 1 of this AD. This inspection may
be conducted visually, which requires lowering the RAT. A review of
airplane maintenance records is acceptable in lieu of this
inspection if the serial number of the RAT can be conclusively
determined from that review.
[[Page 68692]]
(1) Within 500 flight hours or 24 months after the effective
date of this AD, whichever occurs first; or
(2) Prior to the next in-flight or on-ground functional test of
the RAT, whichever occurs first after the effective date of this AD;
or
(3) Prior to the next in-flight or on-ground operational test of
the RAT, whichever occurs first after the effective date of this AD;
or
(4) Prior to the next scheduled RAT in-flight deployment.
(h) If the RAT serial number, as determined in paragraph (g) of
this AD, is not listed in paragraph 1.A of the applicable service
bulletin listed in Table 1 of this AD, no further action is required
by this AD, except as required by paragraph (j) of this AD.
Table 1--Service Bulletins
----------------------------------------------------------------------------------------------------------------
Bombardier Service
Model-- Bulletin-- Revision-- Dated--
----------------------------------------------------------------------------------------------------------------
BD-700-1A11......................... 700-1A11-24-014........ 02 March 15, 2010.
BD-700-1A10......................... 700-24-075............. 02 March 15, 2010.
----------------------------------------------------------------------------------------------------------------
(i) If the RAT serial number, determined in paragraph (g) of
this AD, is listed in paragraph 1.A. of the applicable service
bulletin listed in Table 1 of this AD, before further flight,
inspect to determine if the symbol ``24-7'' is marked on the RAT
identification plate, in accordance with the Accomplishment
Instructions of the applicable service bulletin listed in Table 1 of
this AD. A review of airplane maintenance records is acceptable in
lieu of this inspection if the symbol ``24-7'' mark can be
conclusively determined from that review.
(1) If the symbol ``24-7'' is marked on the RAT identification
plate, the balance washer screws have already been replaced and no
further action is required by this AD, except as required by
paragraph (j) of this AD.
(2) If the symbol ``24-7'' is not marked on the RAT
identification plate, before further flight, replace all balance
washer screws with new balance washer screws, part number MS24667-
14, and mark the RAT identification plate with the symbol ``24-7,''
in accordance with the Accomplishment Instructions of the applicable
service bulletin listed in Table 1 of this AD.
(j) For all airplanes: As of the effective date of this AD, no
person may install on any airplane a replacement or spare RAT (P/N
GL456-1101-7; Hamilton Sundstrand P/Ns in the 762826 series) having
one of the S/Ns listed in paragraph 1.A. of the applicable service
bulletin listed in Table 1 of this AD unless the balance washer
screws have already been replaced and the symbol ``24-7'' is marked
on the RAT identification plate.
Credit for Actions Accomplished in Accordance With Previous Service
Information
(k) Actions accomplished before the effective date of this AD,
in accordance with the applicable service bulletin listed in Table 2
of this AD, are considered acceptable for compliance with the
corresponding action specified in this AD.
Table 2--Credit Service Bulletins
----------------------------------------------------------------------------------------------------------------
Bombardier Service
Model-- Bulletin-- Revision-- Dated--
----------------------------------------------------------------------------------------------------------------
BD-700-1A11......................... 700-1A11-24-014........ 01 July 15, 2009.
BD-700-1A10......................... 700-24-075............. 01 July 15, 2009.
----------------------------------------------------------------------------------------------------------------
FAA AD Differences
Note 1: This AD differs from the MCAI and/or service information
as follows: Although Canadian Airworthiness Directive CF-2010-01,
dated January 18, 2010, recommends accomplishing the visual
inspection prior to the next scheduled in-flight operational test of
the RAT, we have determined that interval would not address the
identified unsafe condition soon enough to ensure an adequate level
of safety for the affected fleet in light of the degree of urgency
associated with the subject unsafe condition. This difference has
been coordinated with Transport Canada Civil Aviation (TCCA).
Other FAA AD Provisions
(l) 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. Send information 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 on any
airplane to which the AMOC applies, notify your principal
maintenance inspector (PMI) or principal avionics inspector (PAI),
as appropriate, or lacking a principal inspector, your local Flight
Standards 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.
(3) Reporting Requirements: For any reporting requirement in
this AD, under the provisions of the Paperwork Reduction Act (44
U.S.C. 3501 et seq.), the Office of Management and Budget (OMB) has
approved the information collection requirements and has assigned
OMB Control Number 2120-0056.
Related Information
(m) Refer to MCAI TCCA Airworthiness Directive CF-2010-01, dated
January 18, 2010; and Bombardier Service Bulletins 700-24-075,
Revision 02, dated March 15, 2010, and 700-1A11-24-014, Revision 02,
dated March 15, 2010; for related information.
Material Incorporated by Reference
(n) You must use Bombardier Service Bulletins 700-24-075,
Revision 02, dated March 15, 2010; or Bombardier Service Bulletin
700-1A11-24-014, Revision 02, dated March 15, 2010; as applicable;
to do the actions required by this AD, unless the AD specifies
otherwise.
(1) The Director of the Federal Register approved the
incorporation by reference of this service information under 5
U.S.C. 552(a) and 1 CFR part 51.
(2) For service information identified in this AD, contact
Bombardier, Inc., 400 C[ocirc]te-Vertu Road West, Dorval,
Qu[eacute]bec H4S 1Y9, Canada; telephone 514-855-5000; fax 514-855-
7401; e-mail thd.crj@aero.bombardier.com; Internet https://www.bombardier.com.
(3) 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.
(4) 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 NARA, call 202-741-6030, or go to: https://www.archives.gov/federal_register/code_of_federal_regulations/ibr_locations.html.
[[Page 68693]]
Issued in Renton, Washington on October 21, 2010.
Michael Kaszycki,
Acting Manager, Transport Airplane Directorate, Aircraft Certification
Service.
[FR Doc. 2010-28174 Filed 11-8-10; 8:45 am]
BILLING CODE 4910-13-P
