Airworthiness Directives; Dassault Model Mystere-Falcon 50 Airplanes, 17443-17445 [E7-6590]
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Federal Register / Vol. 72, No. 67 / Monday, April 9, 2007 / Proposed Rules
The extensive use of composite
materials in the design of the 787 wing
and fuel tank structure is considered a
major change from conventional and
traditional methods of construction.
This will be the first large transport
category airplane to be certificated with
this level of composite material for these
purposes. The applicable airworthiness
regulations do not contain specific
standards for post-crash fire safety
performance of wing and fuel tank skin
or structure.
Discussion of Proposed Special
Conditions
In order to provide the same level of
safety as exists with conventional
airplane construction, Boeing must
demonstrate that the 787 has sufficient
post-crash survivability, in the event
that the wings are exposed to a large
fuel-fed fire, to enable occupants to
safely evacuate. Factors in fuel tank
survivability are the structural integrity
of the wing and tank, flammability of
the tank, burnthrough resistance of the
wing skin, and the presence of autoignition threats during exposure to a
fire. The FAA assessed post crash
survival time during the adoption of
amendment 25–111 for fuselage
burnthrough protection. Studies
conducted by and on behalf of the FAA
indicated that, following a survivable
accident, prevention of fuselage burnthrough for approximately 5 minutes
can significantly enhance survivability.
( See report numbers DOT/FAA/AR–99/
57 and DOT/FAA/AR–02/49.) Beyond
five minutes, there is little benefit, due
to the effects of the fuel fire itself. That
assessment was carried out based on
accidents involving airplanes with
conventional fuel tanks, and
considering the ability of ground
personnel to rescue occupants. In
addition, AC20–135 indicates that,
when aluminum is used for fuel tanks,
the tank should withstand the effects of
fire for 5 minutes without failure.
Therefore, to be consistent with existing
capability and related requirements, the
787 fuel tanks must be capable of
resisting a post crash fire for at least 5
minutes. In demonstrating compliance,
Boeing must address a range of fuel
loads from minimum to maximum, as
well as any other critical fuel load.
rwilkins on PROD1PC63 with PROPOSAL
Applicability
As discussed above, these proposed
special conditions are applicable to the
787. Should Boeing apply at a later date
for a change to the type certificate to
include another model incorporating the
same novel or unusual design features,
these proposed special conditions
VerDate Aug<31>2005
17:56 Apr 06, 2007
Jkt 211001
17443
would apply to that model as well
under the provisions of § 21.101.
ACTION:
Conclusion
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:
This action affects only certain novel
or unusual design features of the 787. It
is not a rule of general applicability, and
it affects only the applicant that applied
to the FAA for approval of these features
on the airplane.
List of Subjects in 14 CFR Part 25
Aircraft, Aviation safety, Reporting
and recordkeeping requirements.
The authority citation for these
Special Conditions is as follows:
Authority: 49 U.S.C. 106(g), 40113, 44701,
44702, 44704.
The Proposed Special Conditions
Accordingly, the Administrator of the
Federal Aviation Administration (FAA)
proposes the following special
conditions as part of the type
certification basis for the Boeing Model
787–8 airplane.
In addition to complying with part 25
regulations governing the fire-safety
performance of the fuel tanks, wings, and
nacelle, the Boeing Model 787–8 must
demonstrate acceptable post-crash
survivability in the event the wings are
exposed to a large fuel-fed ground fire.
Boeing must demonstrate that the wing and
fuel tank design can endure an external fuelfed pool fire for at least 5 minutes. This shall
be demonstrated for minimum fuel loads (not
less than reserve fuel levels) and maximum
fuel loads (maximum range fuel quantities),
and other identified critical fuel loads.
Considerations shall include fuel tank
flammability, burn-through resistance, wing
structural strength retention properties, and
auto-ignition threats during a ground fire
event for the required time duration.
Issued in Renton, Washington, on March
30, 2007.
Ali Bahrami,
Manager, Transport Airplane Directorate,
Aircraft Certification Service.
[FR Doc. E7–6542 Filed 4–6–07; 8:45 am]
BILLING CODE 4910–13–P
DEPARTMENT OF TRANSPORTATION
Federal Aviation Administration
14 CFR Part 39
[Docket No. FAA–2007–27806; Directorate
Identifier 2006–NM–287–AD]
RIN 2120–AA64
Airworthiness Directives; Dassault
Model Mystere-Falcon 50 Airplanes
Federal Aviation
Administration (FAA), DOT.
AGENCY:
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Notice of proposed rulemaking
(NPRM).
* * * discovery of interferences between
the power wire supplying the galley’s coffeemaker and the surrounding structure. These
interferences might, by chafing and
degrading the wire insulation, generate short
circuits between the wire and the aircraft
ground through the composite cabinet
structure, without activation of the Circuit
Breaker (C/B). Several hot spots may then be
created and generate a large amount of thick
smokes just behind the cockpit.
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 May 9, 2007.
ADDRESSES: You may send comments by
any of the following methods:
• DOT Docket Web site: Go to
https://dms.dot.gov and follow the
instructions for sending your comments
electronically.
• Fax: (202) 493–2251.
• Mail: Docket Management Facility,
U.S. Department of Transportation, 400
Seventh Street, SW., Nassif Building,
Room PL–401, Washington, DC 20590–
0001.
• Hand Delivery: Room PL–401 on
the plaza level of the Nassif Building,
400 Seventh Street, SW., Washington,
DC, between 9 a.m. and 5 p.m., Monday
through Friday, except Federal holidays.
• Federal eRulemaking Portal: https://
www.regulations.gov. Follow the
instructions for submitting comments.
Examining the AD Docket
You may examine the AD docket on
the Internet at https://dms.dot.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 (telephone (800) 647–
5227) is in the ADDRESSES section.
Comments will be available in the AD
docket shortly after receipt.
FOR FURTHER INFORMATION CONTACT: Tom
Rodriguez, Aerospace Engineer,
International Branch, ANM–116, FAA,
Transport Airplane Directorate, 1601
Lind Avenue, SW., Renton, Washington
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Federal Register / Vol. 72, No. 67 / Monday, April 9, 2007 / Proposed Rules
98057–3356; telephone (425) 227–1137;
fax (425) 227–1149.
SUPPLEMENTARY INFORMATION:
Streamlined Issuance of AD
The FAA is implementing a new
process for streamlining the issuance of
ADs related to MCAI. This streamlined
process will allow us to adopt MCAI
safety requirements in a more efficient
manner and will reduce safety risks to
the public. This process continues to
follow all FAA AD issuance processes to
meet legal, economic, Administrative
Procedure Act, and Federal Register
requirements. We also continue to meet
our technical decision-making
responsibilities to identify and correct
unsafe conditions on U.S.-certificated
products.
This proposed AD references the
MCAI and related service information
that we considered in forming the
engineering basis to correct the unsafe
condition. The proposed AD contains
text copied from the MCAI and for this
reason might not follow our plain
language principles.
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–2007–27806; Directorate Identifier
2006–NM–287–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://
dms.dot.gov, including any personal
information you provide. We will also
post a report summarizing each
substantive verbal contact we receive
about this proposed AD.
rwilkins on PROD1PC63 with PROPOSAL
Discussion
The European Aviation Safety Agency
(EASA), which is the Technical Agent
for the Member States of the European
Community, has issued EASA
Emergency Airworthiness Directive
2006–0329–E, dated October 25, 2006
(referred to after this as ‘‘the MCAI’’), to
correct an unsafe condition for the
specified products. The MCAI states:
This Airworthiness Directive (AD) is
issued following discovery of interferences
between the power wire supplying the
galley’s coffee-maker and the surrounding
structure. These interferences might, by
chafing and degrading the wire insulation,
generate short circuits between the wire and
VerDate Aug<31>2005
17:56 Apr 06, 2007
Jkt 211001
the aircraft ground through the composite
cabinet structure, without activation of the
Circuit Breaker (C/B). Several hot spots may
then be created and generate a large amount
of thick smokes just behind the cockpit.
This AD aims to prevent this kind of
incident, mandating a wire inspection [for
damaged wire sleeves], a check for a proper
clearance and if necessary a wire re-routing.
The MCAI also requires disabling the
galley’s coffee-maker, and, in addition
to wire re-routing, any required
corrective actions. (Corrective actions
include replacing worn or defective
wire sleeves and shortening wires.) You
may obtain further information by
examining the MCAI in the AD docket.
Relevant Service Information
Dassault has issued Service Bulletins
F50–471 and F50–456, both dated
October 25, 2006. 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 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 44 products of U.S. registry.
We also estimate that it would take
about 46 work-hours per product to
comply with the basic requirements of
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Sfmt 4702
this proposed AD. The average labor
rate is $80 per work-hour. Based on
these figures, we estimate the cost of the
proposed AD on U.S. operators to be
$161,920, or $3,680 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 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, 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:
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Federal Register / Vol. 72, No. 67 / Monday, April 9, 2007 / Proposed Rules
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:
Dassault Aviation: Docket No. FAA–2007–
27806; Directorate Identifier 2006–NM–
287–AD.
Comments Due Date
(a) We must receive comments by May 9,
2007.
Affected ADs
(b) None.
Applicability
(c) This AD applies to Dassault Model
Mystere-Falcon 50 airplanes; certificated in
any category; with serial number 275 through
293 and 295 through 303 and 305 through
330 inclusive, with the exception of airplanes
which have already embodied the Dassault
Service Bulletin F50–456.
Subject
(d) Electrical Power; Equipment/
Furnishings.
rwilkins on PROD1PC63 with PROPOSAL
Reason
(e) The mandatory continuing
airworthiness information (MCAI) states:
This Airworthiness Directive (AD) is
issued following discovery of interferences
between the power wire supplying the
galley’s coffee-maker and the surrounding
structure. These interferences might, by
chafing and degrading the wire insulation,
generate short circuits between the wire and
the aircraft ground through the composite
cabinet structure, without activation of the
Circuit Breaker (C/B). Several hot spots may
then be created and generate a large amount
of thick smoke just behind the cockpit.
This AD aims to prevent this kind of
incident, mandating a wire inspection [for
damaged wire sleeves], a check for a proper
clearance and if necessary a wire re-routing.
The MCAI also requires disabling the galley’s
coffee-maker, and, in addition to wire rerouting, any required corrective actions.
(Corrective actions include replacing worn or
defective wire sleeves and shortening wires.)
Actions and Compliance
(f) Unless already done, do the following
actions.
(1) Within 50 flight hours or 1 month after
the effective date of this AD, whichever
occurs first, disable the galley’s coffee-maker
by pulling and locking out the circuit breaker
710HG, as instructed in Dassault Service
Bulletin F50–471, dated October 25, 2006.
(2) Within 1,530 flight hours or 24 months
after the effective date of this AD, whichever
occurs first, inspect for damaged wire
sleeves, check their proper clearance, and if
a discrepancy is found, prior to next flight,
proceed to all applicable corrective actions as
indicated in the Accomplishment
VerDate Aug<31>2005
17:56 Apr 06, 2007
Jkt 211001
Instructions of Dassault Service Bulletin
F50–456, dated October 25, 2006. Doing the
actions specified in this paragraph terminates
the requirements of paragraph (f)(1) of this
AD, and after the actions have been done, the
circuit breaker collar required by paragraph
(f)(1) of this AD may be removed.
FAA AD Differences
Note: This AD differs from the MCAI and/
or service information as follows: The MCAI
does not indicate that doing the actions
specified in Dassault Service Bulletin F50–
456, dated October 25, 2006, terminates the
requirement to disable the coffee-maker. This
AD indicates that doing the actions specified
in Dassault Service Bulletin F50–456,
terminates the requirements to disable the
coffee-maker, and after the actions have been
done, the circuit breaker collar may be
removed.
Other FAA AD Provisions
(g) The following provisions also apply to
this AD:
(1) Alternative Methods of Compliance
(AMOCs): The Manager, International
Branch, ANM–116, Transport Airplane
Directorate, 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: Tom Rodriguez,
Aerospace Engineer, 1601 Lind Avenue, SW.,
Renton, Washington 98057–3356, telephone
(425) 227–1137; fax (425) 227–1149. Before
using any AMOC approved in accordance
with § 39.19 on any airplane to which the
AMOC applies, notify the appropriate
principal inspector in the FAA Flight
Standards Certificate Holding District Office.
(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 FAAapproved 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,
the Office of Management and Budget (OMB)
has approved the information collection
requirements and has assigned OMB Control
Number 2120–0056.
Related Information
(h) Refer to MCAI European Aviation
Safety Agency Emergency Airworthiness
Directive 2006–0329–E, dated October 25,
2006; Dassault Service Bulletin F50–471,
dated October 25, 2006; and Dassault Service
Bulletin F50–456, dated October 25, 2006; for
related information.
Issued in Renton, Washington, on March
30, 2007.
Ali Bahrami,
Manager, Transport Airplane Directorate,
Aircraft Certification Service.
[FR Doc. E7–6590 Filed 4–6–07; 8:45 am]
BILLING CODE 4910–13–P
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17445
DEPARTMENT OF TRANSPORTATION
Federal Aviation Administration
14 CFR Part 71
[Docket No. FAA–2007–27439; Airspace
Docket No. 07–AAL–04]
Proposed Revision of Class E
Airspace; Red Dog, AK
Federal Aviation
Administration (FAA), DOT.
ACTION: Notice of proposed rulemaking.
AGENCY:
SUMMARY: This action proposes to revise
Class E airspace at Red Dog, AK. A
review of controlled airspace for two
new Area Navigation (RNAV) Required
Navigation Performance (RNP) Special
Instrument Approach Procedures
(SIAPs) and an RNAV RNP Special
Departure Procedure (DP), after a recent
action (06–AAL–40) revealed that a
small area of controlled airspace is
required for the Red Dog Airport.
Adoption of this proposal would result
in revision of existing Class E airspace
upward from 1,200 feet (ft.) above the
surface at Red Dog Airport, AK.
DATES: Comments must be received on
or before May 24, 2007.
ADDRESSES: Send comments on the
proposal to the Docket Management
System, U.S. Department of
Transportation, Room Plaza 401, 400
Seventh Street, SW., Washington, DC
20590–0001. You must identify the
docket number FAA–2007–27439/
Airspace Docket No. 07–AAL–04, at the
beginning of your comments. You may
also submit comments on the Internet at
https://dms.dot.gov. You may review the
public docket containing the proposal,
any comments received, and any final
disposition in person in the Dockets
Office between 9 a.m. and 5 p.m.,
Monday through Friday, except Federal
holidays. The Docket Office (telephone
1–800–647–5527) is on the plaza level
of the Department of Transportation
Nassif Building at the above address.
An informal docket may also be
examined during normal business hours
at the office of the Manager, Safety,
Alaska Flight Service Operations,
Federal Aviation Administration, 222
West 7th Avenue, Box 14, Anchorage,
AK 99513–7587.
FOR FURTHER INFORMATION CONTACT: Gary
Rolf, Federal Aviation Administration,
222 West 7th Avenue, Box 14,
Anchorage, AK 99513–7587; telephone
number (907) 271–5898; fax: (907) 271–
2850; e-mail: gary.ctr.rolf@faa.gov.
Internet address: https://
www.alaska.faa.gov/at.
SUPPLEMENTARY INFORMATION:
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]]>Agencies
[Federal Register Volume 72, Number 67 (Monday, April 9, 2007)]
[Proposed Rules]
[Pages 17443-17445]
From the Federal Register Online via the Government Printing Office [www.gpo.gov]
[FR Doc No: E7-6590]
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DEPARTMENT OF TRANSPORTATION
Federal Aviation Administration
14 CFR Part 39
[Docket No. FAA-2007-27806; Directorate Identifier 2006-NM-287-AD]
RIN 2120-AA64
Airworthiness Directives; Dassault Model Mystere-Falcon 50
Airplanes
AGENCY: Federal Aviation Administration (FAA), DOT.
ACTION: Notice of proposed rulemaking (NPRM).
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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:
* * * discovery of interferences between the power wire
supplying the galley's coffee-maker and the surrounding structure.
These interferences might, by chafing and degrading the wire
insulation, generate short circuits between the wire and the
aircraft ground through the composite cabinet structure, without
activation of the Circuit Breaker (C/B). Several hot spots may then
be created and generate a large amount of thick smokes just behind
the cockpit.
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 May 9, 2007.
ADDRESSES: You may send comments by any of the following methods:
DOT Docket Web site: Go to https://dms.dot.gov and follow
the instructions for sending your comments electronically.
Fax: (202) 493-2251.
Mail: Docket Management Facility, U.S. Department of
Transportation, 400 Seventh Street, SW., Nassif Building, Room PL-401,
Washington, DC 20590-0001.
Hand Delivery: Room PL-401 on the plaza level of the
Nassif Building, 400 Seventh Street, SW., Washington, DC, between 9
a.m. and 5 p.m., Monday through Friday, except Federal holidays.
Federal eRulemaking Portal: https://www.regulations.gov.
Follow the instructions for submitting comments.
Examining the AD Docket
You may examine the AD docket on the Internet at https://
dms.dot.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 (telephone (800) 647-5227) is in the ADDRESSES section.
Comments will be available in the AD docket shortly after receipt.
FOR FURTHER INFORMATION CONTACT: Tom Rodriguez, Aerospace Engineer,
International Branch, ANM-116, FAA, Transport Airplane Directorate,
1601 Lind Avenue, SW., Renton, Washington
[[Page 17444]]
98057-3356; telephone (425) 227-1137; fax (425) 227-1149.
SUPPLEMENTARY INFORMATION:
Streamlined Issuance of AD
The FAA is implementing a new process for streamlining the issuance
of ADs related to MCAI. This streamlined process will allow us to adopt
MCAI safety requirements in a more efficient manner and will reduce
safety risks to the public. This process continues to follow all FAA AD
issuance processes to meet legal, economic, Administrative Procedure
Act, and Federal Register requirements. We also continue to meet our
technical decision-making responsibilities to identify and correct
unsafe conditions on U.S.-certificated products.
This proposed AD references the MCAI and related service
information that we considered in forming the engineering basis to
correct the unsafe condition. The proposed AD contains text copied from
the MCAI and for this reason might not follow our plain language
principles.
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-2007-
27806; Directorate Identifier 2006-NM-287-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://
dms.dot.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
Emergency Airworthiness Directive 2006-0329-E, dated October 25, 2006
(referred to after this as ``the MCAI''), to correct an unsafe
condition for the specified products. The MCAI states:
This Airworthiness Directive (AD) is issued following discovery
of interferences between the power wire supplying the galley's
coffee-maker and the surrounding structure. These interferences
might, by chafing and degrading the wire insulation, generate short
circuits between the wire and the aircraft ground through the
composite cabinet structure, without activation of the Circuit
Breaker (C/B). Several hot spots may then be created and generate a
large amount of thick smokes just behind the cockpit.
This AD aims to prevent this kind of incident, mandating a wire
inspection [for damaged wire sleeves], a check for a proper
clearance and if necessary a wire re-routing.
The MCAI also requires disabling the galley's coffee-maker, and, in
addition to wire re-routing, any required corrective actions.
(Corrective actions include replacing worn or defective wire sleeves
and shortening wires.) You may obtain further information by examining
the MCAI in the AD docket.
Relevant Service Information
Dassault has issued Service Bulletins F50-471 and F50-456, both
dated October 25, 2006. 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 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 44 products of U.S. registry. We also estimate that
it would take about 46 work-hours per product to comply with the basic
requirements of this proposed AD. The average labor rate is $80 per
work-hour. Based on these figures, we estimate the cost of the proposed
AD on U.S. operators to be $161,920, or $3,680 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 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, 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:
[[Page 17445]]
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:
Dassault Aviation: Docket No. FAA-2007-27806; Directorate Identifier
2006-NM-287-AD.
Comments Due Date
(a) We must receive comments by May 9, 2007.
Affected ADs
(b) None.
Applicability
(c) This AD applies to Dassault Model Mystere-Falcon 50
airplanes; certificated in any category; with serial number 275
through 293 and 295 through 303 and 305 through 330 inclusive, with
the exception of airplanes which have already embodied the Dassault
Service Bulletin F50-456.
Subject
(d) Electrical Power; Equipment/Furnishings.
Reason
(e) The mandatory continuing airworthiness information (MCAI)
states:
This Airworthiness Directive (AD) is issued following discovery
of interferences between the power wire supplying the galley's
coffee-maker and the surrounding structure. These interferences
might, by chafing and degrading the wire insulation, generate short
circuits between the wire and the aircraft ground through the
composite cabinet structure, without activation of the Circuit
Breaker (C/B). Several hot spots may then be created and generate a
large amount of thick smoke just behind the cockpit.
This AD aims to prevent this kind of incident, mandating a wire
inspection [for damaged wire sleeves], a check for a proper
clearance and if necessary a wire re-routing.
The MCAI also requires disabling the galley's coffee-maker, and, in
addition to wire re-routing, any required corrective actions.
(Corrective actions include replacing worn or defective wire sleeves
and shortening wires.)
Actions and Compliance
(f) Unless already done, do the following actions.
(1) Within 50 flight hours or 1 month after the effective date
of this AD, whichever occurs first, disable the galley's coffee-
maker by pulling and locking out the circuit breaker 710HG, as
instructed in Dassault Service Bulletin F50-471, dated October 25,
2006.
(2) Within 1,530 flight hours or 24 months after the effective
date of this AD, whichever occurs first, inspect for damaged wire
sleeves, check their proper clearance, and if a discrepancy is
found, prior to next flight, proceed to all applicable corrective
actions as indicated in the Accomplishment Instructions of Dassault
Service Bulletin F50-456, dated October 25, 2006. Doing the actions
specified in this paragraph terminates the requirements of paragraph
(f)(1) of this AD, and after the actions have been done, the circuit
breaker collar required by paragraph (f)(1) of this AD may be
removed.
FAA AD Differences
Note: This AD differs from the MCAI and/ or service information
as follows: The MCAI does not indicate that doing the actions
specified in Dassault Service Bulletin F50-456, dated October 25,
2006, terminates the requirement to disable the coffee-maker. This
AD indicates that doing the actions specified in Dassault Service
Bulletin F50-456, terminates the requirements to disable the coffee-
maker, and after the actions have been done, the circuit breaker
collar may be removed.
Other FAA AD Provisions
(g) The following provisions also apply to this AD:
(1) Alternative Methods of Compliance (AMOCs): The Manager,
International Branch, ANM-116, Transport Airplane Directorate, 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: Tom
Rodriguez, Aerospace Engineer, 1601 Lind Avenue, SW., Renton,
Washington 98057-3356, telephone (425) 227-1137; fax (425) 227-1149.
Before using any AMOC approved in accordance with Sec. 39.19 on any
airplane to which the AMOC applies, notify the appropriate principal
inspector in the FAA Flight Standards Certificate Holding District
Office.
(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, the
Office of Management and Budget (OMB) has approved the information
collection requirements and has assigned OMB Control Number 2120-
0056.
Related Information
(h) Refer to MCAI European Aviation Safety Agency Emergency
Airworthiness Directive 2006-0329-E, dated October 25, 2006;
Dassault Service Bulletin F50-471, dated October 25, 2006; and
Dassault Service Bulletin F50-456, dated October 25, 2006; for
related information.
Issued in Renton, Washington, on March 30, 2007.
Ali Bahrami,
Manager, Transport Airplane Directorate, Aircraft Certification
Service.
[FR Doc. E7-6590 Filed 4-6-07; 8:45 am]
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