Airworthiness Directives; BAE SYSTEMS (Operations) Limited Model 4101 Airplanes, 54139-54141 [2011-22224]
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<![CDATA[
54139
Proposed Rules
Federal Register
Vol. 76, No. 169
Wednesday, August 31, 2011
This section of the FEDERAL REGISTER
contains notices to the public of the proposed
issuance of rules and regulations. The
purpose of these notices is to give interested
persons an opportunity to participate in the
rule making prior to the adoption of the final
rules.
DEPARTMENT OF TRANSPORTATION
Federal Aviation Administration
14 CFR Part 39
[Docket No. FAA–2011–0911; Directorate
Identifier 2010–NM–248–AD]
RIN 2120–AA64
Airworthiness Directives; BAE
SYSTEMS (Operations) Limited Model
4101 Airplanes
Federal Aviation
Administration (FAA), DOT.
ACTION: Notice of proposed rulemaking
(NPRM).
AGENCY:
We propose to adopt a new
airworthiness directive (AD) for the
products listed above. This proposed
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:
Emcdonald on DSK2BSOYB1PROD with PROPOSALS
A door failure mode has been reported by
an operator.
Investigation has shown that the
passenger/crew entry door pin-guide plates
can fail prior to the expected fatigue life. A
metallurgical examination of the failed
component (lower guide plate) concluded
that the occurred failure was due to
exfoliation corrosion.
The current inspection regime is not
adequate to identify early stages of this
corrosion.
This condition, if not corrected, can lead
to the sudden depressurisation of the
aeroplane and consequently may injure the
occupants.
*
*
*
*
*
The proposed AD would require actions
that are intended to address the unsafe
condition described in the MCAI.
DATES: We must receive comments on
this proposed AD by October 17, 2011.
ADDRESSES: You may send comments by
any of the following methods:
• Federal eRulemaking Portal: Go to
https://www.regulations.gov. Follow the
instructions for submitting comments.
VerDate Mar<15>2010
17:28 Aug 30, 2011
Jkt 223001
• 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.
For service information identified in
this proposed AD, contact BAE
SYSTEMS (Operations) Limited,
Customer Information Department,
Prestwick International Airport,
Ayrshire, KA9 2RW, Scotland, United
Kingdom; telephone +44 1292 675207;
fax +44 1292 675704; e-mail
RApublications@baesystems.com;
Internet https://www.baesystems.com/
Businesses/RegionalAircraft/index.htm.
You may review copies of the
referenced 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.
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 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:
Todd Thompson, 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:
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.
PO 00000
Frm 00001
Fmt 4702
Sfmt 4702
FAA–2011–0911; Directorate Identifier
2010–NM–248–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
The European Aviation Safety Agency
(EASA), which is the Technical Agent
for the Member States of the European
Community, has issued EASA
Airworthiness Directive 2010–0179,
dated August 30, 2010 (referred to after
this as ‘‘the MCAI’’), to correct an unsafe
condition for the specified products.
The MCAI states:
A door failure mode has been reported by
an operator.
Investigation has shown that the
passenger/crew entry door pin-guide plates
can fail prior to the expected fatigue life. A
metallurgical examination of the failed
component (lower guide plate) concluded
that the occurred failure was due to
exfoliation corrosion.
The current inspection regime is not
adequate to identify early stages of this
corrosion.
This condition, if not corrected, can lead
to the sudden depressurisation of the
aeroplane and consequently may injure the
occupants.
For the reasons described above, this
[EASA] AD requires immediate and periodic
ultrasonic inspections [for a split caused by
exfoliation corrosion] of the door pin guides
and the accomplishment of the relevant
corrective actions [replacing the affected
guideplates] as necessary.
You may obtain further information
by examining the MCAI in the AD
docket.
Relevant Service Information
BAE SYSTEMS (Operations) Limited
has issued Service Bulletin J41–52–064,
dated September 15, 2009. The actions
described in this service information are
intended to correct the unsafe condition
identified in the MCAI.
E:\FR\FM\31AUP1.SGM
31AUP1
54140
Federal Register / Vol. 76, No. 169 / Wednesday, August 31, 2011 / Proposed Rules
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.
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 proposed
different actions in this AD from those
in the MCAI in order to follow FAA
policies. Any such differences are
highlighted in a NOTE within the
proposed AD.
Emcdonald on DSK2BSOYB1PROD with PROPOSALS
Costs of Compliance
Based on the service information, we
estimate that this proposed AD would
affect about 2 products of U.S. registry.
We also estimate that it would take
about 2 work-hours per product to
comply with the basic requirements of
this proposed AD. The average labor
rate is $85 per work-hour. Based on
these figures, we estimate the cost of the
proposed AD on U.S. operators to be
$340, or $170 per product.
In addition, we estimate that any
necessary follow-on actions would take
about 2 work-hours and require parts
costing $525, for a cost of $1,050 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:
VerDate Mar<15>2010
17:28 Aug 30, 2011
Jkt 223001
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); 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 proposed AD and placed it in the
AD docket.
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 adding
the following new AD:
BAE SYSTEMS (Operations) Limited: Docket
No. FAA–2011–0911; Directorate
Identifier 2010–NM–248–AD.
Comments Due Date
(a) We must receive comments by October
17, 2011.
PO 00000
Frm 00002
Fmt 4702
Sfmt 4702
Affected ADs
(b) None.
Applicability
(c) This AD applies to all BAE SYSTEMS
(Operations) Limited Model 4101 airplanes;
certificated in any category.
Subject
(d) Air Transport Association (ATA) of
America Code 52: Doors.
Reason
(e) The mandatory continuing
airworthiness information (MCAI) states:
A door failure mode has been reported by
an operator.
Investigation has shown that the
passenger/crew entry door pin-guide plates
can fail prior to the expected fatigue life. A
metallurgical examination of the failed
component (lower guide plate) concluded
that the occurred failure was due to
exfoliation corrosion.
The current inspection regime is not
adequate to identify early stages of this
corrosion.
This condition, if not corrected, can lead
to the sudden depressurisation of the
aeroplane and consequently may injure the
occupants.
*
*
*
*
*
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.
Actions
(g) Within 6 months after the effective date
of this AD, do an ultrasonic inspection of the
passenger/crew door upper and lower guide
plates for a split caused by exfoliation
corrosion, in accordance with the
Accomplishment Instructions of BAE
SYSTEMS (Operations) Limited Service
Bulletin J41–52–064, dated September 15,
2009. Repeat the ultrasonic inspection,
thereafter, at intervals not to exceed 48
Months.
(h) If a split caused by exfoliation corrosion
of an area of 78mm2 (0.12 in.2) or greater is
found during any ultrasonic inspection
required by paragraph (g) of this AD: Before
further flight, replace any affected guide
plates with a serviceable guide plate, in
accordance with the Accomplishment
Instructions of BAE SYSTEMS (Operations)
Limited Service Bulletin J41–52–064, dated
September 15, 2009.
FAA AD Differences
Note 1: This AD differs from the MCAI
and/or service information as follows: No
differences.
Other FAA AD Provisions
(i) The following provisions also apply to
this AD:
(1) Alternative Methods of Compliance
(AMOCs): The Manager, International
Branch, ANM–116, 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
E:\FR\FM\31AUP1.SGM
31AUP1
Federal Register / Vol. 76, No. 169 / Wednesday, August 31, 2011 / Proposed Rules
request to your principal inspector or local
Flight Standards District Office, as
appropriate. If sending information directly
to the International Branch, send it to ATTN:
Todd Thompson, 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. Information may be e-mailed to: 9ANM-116-AMOC-REQUESTS@faa.gov.
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.
Related Information
(j) Refer to MCAI European Aviation Safety
Agency Airworthiness Directive 2010–0179,
dated August 30, 2010; and BAE SYSTEMS
(Operations) Limited Service Bulletin J41–
52–064, dated September 15, 2009; for
related information.
Issued in Renton, Washington, on August
23, 2011.
Ali Bahrami,
Manager, Transport Airplane Directorate,
Aircraft Certification Service.
[FR Doc. 2011–22224 Filed 8–30–11; 8:45 am]
BILLING CODE 4910–13–P
DEPARTMENT OF TRANSPORTATION
Federal Aviation Administration
14 CFR Part 39
[Docket No. FAA–2011–0913; Directorate
Identifier 2011–NM–031–AD]
RIN 2120–AA64
Airworthiness Directives; Cessna
Aircraft Company Model 680 Airplanes
Federal Aviation
Administration (FAA), DOT.
ACTION: Notice of proposed rulemaking
(NPRM).
AGENCY:
We propose to adopt a new
airworthiness directive (AD) for the
products listed above. This proposed
AD would require adding diodes to the
fuel cross-feed wiring, and revising the
airplane flight manual to include
procedures to use when the left or right
generator is selected OFF. This
proposed AD was prompted by a false
cross-feed command to the right-hand
fuel control card, due to the cross-feed
Emcdonald on DSK2BSOYB1PROD with PROPOSALS
SUMMARY:
VerDate Mar<15>2010
17:28 Aug 30, 2011
Jkt 223001
inputs on the left- and right-hand fuel
control cards being connected together
and causing an imbalance of fuel
between the left and right wing tanks.
We are proposing this AD to prevent
lateral imbalance of the airplane, which
can be corrected by deflecting the
aileron trim, but which increases the
pilot’s workload. Uncontrolled fuel
cross-feed results in lateral imbalance
that could exceed the airplane’s
limitation in a short period of time.
Exceeding the lateral imbalance limit
could result in reduced control of the
airplane.
DATES: We must receive comments on
this proposed AD by October 17, 2011.
ADDRESSES: You may send comments 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 proposed AD, contact Cessna
Aircraft Co., P.O. Box 7706, Wichita,
Kansas 67277; telephone 316–517–6215;
fax 316–517–5802; e-mail
citationpubs@cessna.textron.com;
Internet https://
www.cessnasupport.com/newlogin.html.
You may review copies of the
referenced 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.
Examining the AD Docket
You may examine the AD docket on
the Internet at https://
www.regulations.gov; 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:
Nhien Hoang, Aerospace Engineer,
Electrical Systems and Avionics Branch,
ACE–119W, FAA, Wichita Aircraft
Certification Office, 1801 Airport Road,
PO 00000
Frm 00003
Fmt 4702
Sfmt 4702
54141
Room 100, Mid-Continent Airport,
Wichita, Kansas 67209; phone: (316)
946–4190; fax: (316) 946–4107; e-mail:
nhien.hoang@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–
2011–0913; Directorate Identifier 2011–
NM–031–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 received a report that a Model 680
airplane in flight displayed a DC EMER
BUS L amber crew alerting system
(CAS) message. Per the emergency/
abnormal procedures checklist, the
flightcrew identified a fault on the left
main electrical bus and selected the left
generator to OFF.
The co-pilot (flying the airplane due
to the pilot’s primary flight display
being disabled by the left generator OFF,
which also disabled the left fuel
quantity indication) observed that an
increasing amount of right aileron
control input was required to maintain
a wings-level attitude.
After the airplane safely landed,
investigation showed that the left tank
had 5,500 pounds of fuel (full) and the
right tank 3,300 pounds. The flightcrew
confirmed it had not selected the fuel
cross-feed during flight. During the 20
minutes that elapsed between selecting
the left generator OFF and landing,
sufficient fuel had migrated from the
right to the left tank creating an
imbalance of 2,200 pounds. The
maximum permissible fuel imbalance
for this airplane is 400 pounds.
Loss of power on the left main
electrical bus results in a false crossfeed command to the right-hand fuel
control card, due to the cross-feed
inputs on the left- and right-hand fuel
control cards being connected together,
thereby causing an imbalance of fuel
between the left and right wing tanks.
E:\FR\FM\31AUP1.SGM
31AUP1
]]>Agencies
[Federal Register Volume 76, Number 169 (Wednesday, August 31, 2011)]
[Proposed Rules]
[Pages 54139-54141]
From the Federal Register Online via the Government Printing Office [www.gpo.gov]
[FR Doc No: 2011-22224]
========================================================================
Proposed Rules
Federal Register
________________________________________________________________________
This section of the FEDERAL REGISTER contains notices to the public of
the proposed issuance of rules and regulations. The purpose of these
notices is to give interested persons an opportunity to participate in
the rule making prior to the adoption of the final rules.
========================================================================
Federal Register / Vol. 76, No. 169 / Wednesday, August 31, 2011 /
Proposed Rules
[[Page 54139]]
DEPARTMENT OF TRANSPORTATION
Federal Aviation Administration
14 CFR Part 39
[Docket No. FAA-2011-0911; Directorate Identifier 2010-NM-248-AD]
RIN 2120-AA64
Airworthiness Directives; BAE SYSTEMS (Operations) Limited Model
4101 Airplanes
AGENCY: Federal Aviation Administration (FAA), DOT.
ACTION: Notice of proposed rulemaking (NPRM).
-----------------------------------------------------------------------
SUMMARY: We propose to adopt a new airworthiness directive (AD) for the
products listed above. This proposed 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:
A door failure mode has been reported by an operator.
Investigation has shown that the passenger/crew entry door pin-
guide plates can fail prior to the expected fatigue life. A
metallurgical examination of the failed component (lower guide
plate) concluded that the occurred failure was due to exfoliation
corrosion.
The current inspection regime is not adequate to identify early
stages of this corrosion.
This condition, if not corrected, can lead to the sudden
depressurisation of the aeroplane and consequently may injure the
occupants.
* * * * *
The proposed AD would require actions that are intended to address the
unsafe condition described in the MCAI.
DATES: We must receive comments on this proposed AD by October 17,
2011.
ADDRESSES: You may send comments 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: 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.
For service information identified in this proposed AD, contact BAE
SYSTEMS (Operations) Limited, Customer Information Department,
Prestwick International Airport, Ayrshire, KA9 2RW, Scotland, United
Kingdom; telephone +44 1292 675207; fax +44 1292 675704; e-mail
RApublications@baesystems.com; Internet https://www.baesystems.com/Businesses/RegionalAircraft/index.htm. You may review copies of the
referenced 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.
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 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: Todd Thompson, 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:
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-2011-0911;
Directorate Identifier 2010-NM-248-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
The European Aviation Safety Agency (EASA), which is the Technical
Agent for the Member States of the European Community, has issued EASA
Airworthiness Directive 2010-0179, dated August 30, 2010 (referred to
after this as ``the MCAI''), to correct an unsafe condition for the
specified products. The MCAI states:
A door failure mode has been reported by an operator.
Investigation has shown that the passenger/crew entry door pin-
guide plates can fail prior to the expected fatigue life. A
metallurgical examination of the failed component (lower guide
plate) concluded that the occurred failure was due to exfoliation
corrosion.
The current inspection regime is not adequate to identify early
stages of this corrosion.
This condition, if not corrected, can lead to the sudden
depressurisation of the aeroplane and consequently may injure the
occupants.
For the reasons described above, this [EASA] AD requires
immediate and periodic ultrasonic inspections [for a split caused by
exfoliation corrosion] of the door pin guides and the accomplishment
of the relevant corrective actions [replacing the affected
guideplates] as necessary.
You may obtain further information by examining the MCAI in the AD
docket.
Relevant Service Information
BAE SYSTEMS (Operations) Limited has issued Service Bulletin J41-
52-064, dated September 15, 2009. The actions described in this service
information are intended to correct the unsafe condition identified in
the MCAI.
[[Page 54140]]
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.
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 proposed different actions in this AD from those
in the MCAI in order to follow FAA policies. Any such differences are
highlighted in a NOTE within the proposed AD.
Costs of Compliance
Based on the service information, we estimate that this proposed AD
would affect about 2 products of U.S. registry. We also estimate that
it would take about 2 work-hours per product to comply with the basic
requirements of this proposed AD. The average labor rate is $85 per
work-hour. Based on these figures, we estimate the cost of the proposed
AD on U.S. operators to be $340, or $170 per product.
In addition, we estimate that any necessary follow-on actions would
take about 2 work-hours and require parts costing $525, for a cost of
$1,050 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 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); 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 proposed AD and placed it in the AD docket.
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.
Sec. 39.13 [Amended]
2. The FAA amends Sec. 39.13 by adding the following new AD:
BAE SYSTEMS (Operations) Limited: Docket No. FAA-2011-0911;
Directorate Identifier 2010-NM-248-AD.
Comments Due Date
(a) We must receive comments by October 17, 2011.
Affected ADs
(b) None.
Applicability
(c) This AD applies to all BAE SYSTEMS (Operations) Limited
Model 4101 airplanes; certificated in any category.
Subject
(d) Air Transport Association (ATA) of America Code 52: Doors.
Reason
(e) The mandatory continuing airworthiness information (MCAI)
states:
A door failure mode has been reported by an operator.
Investigation has shown that the passenger/crew entry door pin-
guide plates can fail prior to the expected fatigue life. A
metallurgical examination of the failed component (lower guide
plate) concluded that the occurred failure was due to exfoliation
corrosion.
The current inspection regime is not adequate to identify early
stages of this corrosion.
This condition, if not corrected, can lead to the sudden
depressurisation of the aeroplane and consequently may injure the
occupants.
* * * * *
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.
Actions
(g) Within 6 months after the effective date of this AD, do an
ultrasonic inspection of the passenger/crew door upper and lower
guide plates for a split caused by exfoliation corrosion, in
accordance with the Accomplishment Instructions of BAE SYSTEMS
(Operations) Limited Service Bulletin J41-52-064, dated September
15, 2009. Repeat the ultrasonic inspection, thereafter, at intervals
not to exceed 48 Months.
(h) If a split caused by exfoliation corrosion of an area of
78mm[sup2] (0.12 in.[sup2]) or greater is found during any
ultrasonic inspection required by paragraph (g) of this AD: Before
further flight, replace any affected guide plates with a serviceable
guide plate, in accordance with the Accomplishment Instructions of
BAE SYSTEMS (Operations) Limited Service Bulletin J41-52-064, dated
September 15, 2009.
FAA AD Differences
Note 1: This AD differs from the MCAI and/or service information
as follows: No differences.
Other FAA AD Provisions
(i) The following provisions also apply to this AD:
(1) Alternative Methods of Compliance (AMOCs): The Manager,
International Branch, ANM-116, 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
[[Page 54141]]
request to your principal inspector or local Flight Standards
District Office, as appropriate. If sending information directly to
the International Branch, send it to ATTN: Todd Thompson, 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. Information may
be e-mailed to: 9-ANM-116-AMOC-REQUESTS@faa.gov. 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.
Related Information
(j) Refer to MCAI European Aviation Safety Agency Airworthiness
Directive 2010-0179, dated August 30, 2010; and BAE SYSTEMS
(Operations) Limited Service Bulletin J41-52-064, dated September
15, 2009; for related information.
Issued in Renton, Washington, on August 23, 2011.
Ali Bahrami,
Manager, Transport Airplane Directorate, Aircraft Certification
Service.
[FR Doc. 2011-22224 Filed 8-30-11; 8:45 am]
BILLING CODE 4910-13-P
