Airworthiness Directives; Fokker Model F.28 Mark 0070 and Mark 0100 Airplanes, 6629-6631 [E8-1991]
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Federal Register / Vol. 73, No. 24 / Tuesday, February 5, 2008 / Proposed Rules
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: Mike Borfitz,
Aerospace Engineer, International Branch,
ANM–116, FAA, Transport Airplane
Directorate, 1601 Lind Avenue, SW., Renton,
Washington 98057–3356; telephone (425)
227–2677; fax (425) 227–1149. Before using
any approved AMOC on any airplane to
which the AMOC applies, notify your
appropriate principal inspector (PI) in the
FAA Flight Standards District Office (FSDO),
or lacking a PI, your local FSDO.
(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 CAAI Airworthiness
Directive 24–07–10–11, dated October 31,
2007, and Gulfstream Alert Service Bulletin
150–24A–046, dated October 31, 2007, for
related information.
Issued in Renton, Washington, on January
24, 2008.
Ali Bahrami,
Manager, Transport Airplane Directorate,
Aircraft Certification Service.
[FR Doc. E8–1988 Filed 2–4–08; 8:45 am]
BILLING CODE 4910–13–P
DEPARTMENT OF TRANSPORTATION
Federal Aviation Administration
14 CFR Part 39
[Docket No. FAA–2008–0117; Directorate
Identifier 2007–NM–273–AD]
RIN 2120–AA64
rmajette on PROD1PC64 with PROPOSALS
Airworthiness Directives; Fokker
Model F.28 Mark 0070 and Mark 0100
Airplanes
Federal Aviation
Administration (FAA), DOT.
ACTION: Notice of proposed rulemaking
(NPRM).
AGENCY:
SUMMARY: We propose to adopt a new
airworthiness directive (AD) for the
VerDate Aug<31>2005
15:29 Feb 04, 2008
Jkt 214001
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:
[L]eakage of hot wing anti-icing air from
the Peri-seal housing. This results in an
uncontrolled flow of high-pressure hot air to
enter the forward (anti-icing) plenum
chamber of the wing leading edge, potentially
damaging the anti-icing barrier webs.
Subsequently, the wing auxiliary spar can
also be damaged by high-pressure hot air.
* * * [D]eterioration of the Peri-seals
enables the piccolo tubes to vibrate, resulting
in a broken piccolo tube. This condition, if
not corrected, may cause heat damage to the
front spar that potentially affects the wing’s
load capability.
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 March 6, 2008.
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.
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: Tom
Rodriguez, Aerospace Engineer,
International Branch, ANM–116, FAA,
Transport Airplane Directorate, 1601
Lind Avenue, SW., Renton, Washington
98057–3356; telephone (425) 227–1137;
fax (425) 227–1149.
SUPPLEMENTARY INFORMATION:
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6629
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–2008–0117; Directorate Identifier
2007–NM–273–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 2007–0229,
dated August 15, 2007 (referred to after
this as ‘‘the MCAI’’), to correct an unsafe
condition for the specified products.
The MCAI states:
In 1997, Fokker introduced a new type of
Peri-seal (SBF 100–30–022). The old type
was known to be subject to deterioration,
which, in combination with improper
installation, can cause leakage of hot wing
anti-icing air from the Peri-seal housing. This
results in an uncontrolled flow of highpressure hot air to enter the forward (antiicing) plenum chamber of the wing leading
edge, potentially damaging the anti-icing
barrier webs. Subsequently, the wing
auxiliary spar can also be damaged by highpressure hot air. Analysis at the time showed
that any resulting damage (known to occur at
inboard positions only) would not affect the
wing load capability. For this reason, the
modification was not classified as
MANDATORY and no AD action was
warranted. However, through a recent
occurrence, it was discovered that
deterioration of the Peri-seals enables the
piccolo tubes to vibrate, resulting in a broken
piccolo tube. In this case, the location of the
failure was more outboard than previous
occurrences. This condition, if not corrected,
may cause heat damage to the front spar that
potentially affects the wing’s load capability.
Since an unsafe condition was identified,
likely to exist or develop on an aircraft of this
type design, CAA (Civil Aviation Authority)
Netherlands issued AD NL–2006–011 to
require inspection of the Piccolo Tubes and
the surrounding structure to establish correct
installation, as well as the replacement of the
460-series Peri-seals by the improved 600series, which have a higher temperature
limit.
Since the issuance of that AD, Fokker has
developed a modification, published as
E:\FR\FM\05FEP1.SGM
05FEP1
6630
Federal Register / Vol. 73, No. 24 / Tuesday, February 5, 2008 / Proposed Rules
Component Service Bulletin (CSB) D14000–
57–007, for spare wing leading edge sections
that may still contain the 460-series Periseals. For that reason, this EASA AD retains
the requirements of AD NL–2006–011 and
adds a limit for the allowed use of
unmodified wing leading edge section as
replacement part.
List of Subjects in 14 CFR Part 39
The corrective actions include
inspection of the piccolo tubes and the
wing leading edge for damage and
replacement of the Peri-seals or repair of
damage, as applicable. You may obtain
further information by examining the
MCAI in the AD docket.
comply with the basic requirements of
this proposed AD. The average labor
rate is $80 per work-hour. Required
parts would cost about $3,430 per
product. Where the service information
lists required parts costs that are
covered under warranty, we have
assumed that there will be no charge for
these costs. As we do not control
warranty coverage for affected parties,
some parties may incur costs higher
than estimated here. Based on these
figures, we estimate the cost of the
proposed AD on U.S. operators to be
$65,430, or $7,270 per product.
Relevant Service Information
Authority for This Rulemaking
§ 39.13
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.
2. The FAA amends § 39.13 by adding
the following new AD:
Fokker has issued Service Bulletin
SBF100–30–028, Revision 1, dated April
17, 2007, and Component Service
Bulletin D14000–57–007, dated April
17, 2007. 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
rmajette on PROD1PC64 with PROPOSALS
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 9 products of U.S. registry.
We also estimate that it would take
about 48 work-hours per product to
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15:29 Feb 04, 2008
Jkt 214001
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.
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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:
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.
[Amended]
Fokker Services B.V.: Docket No. FAA–
2008–0117; Directorate Identifier 2007–
NM–273–AD.
Comments Due Date
(a) We must receive comments by March 6,
2008.
Affected ADs
(b) None.
Applicability
(c) This AD applies to Fokker Model F.28
Mark 0070 and Mark 0100 airplanes,
certificated in any category, all serial
numbers, except those previously modified
in accordance with Fokker Service Bulletin
SBF 100–30–022.
Subject
(d) Air Transport Association (ATA) of
America Code 30: Ice and Rain Protection.
Reason
(e) The mandatory continuing
airworthiness information (MCAI) states:
In 1997, Fokker introduced a new type of
Peri-seal (SBF 100–30–022). The old type
was known to be subject to deterioration,
which, in combination with improper
installation, can cause leakage of hot wing
anti-icing air from the Peri-seal housing. This
results in an uncontrolled flow of highpressure hot air to enter the forward (antiicing) plenum chamber of the wing leading
edge, potentially damaging the anti-icing
barrier webs. Subsequently, the wing
auxiliary spar can also be damaged by highpressure hot air. Analysis at the time showed
that any resulting damage (known to occur at
inboard positions only) would not affect the
wing load capability. For this reason, the
modification was not classified as
MANDATORY and no AD action was
warranted. However, through a recent
occurrence, it was discovered that
deterioration of the Peri-seals enables the
piccolo tubes to vibrate, resulting in a broken
piccolo tube. In this case, the location of the
failure was more outboard than previous
occurrences. This condition, if not corrected,
may cause heat damage to the front spar that
potentially affects the wing’s load capability.
Since an unsafe condition was identified,
likely to exist or develop on an aircraft of this
E:\FR\FM\05FEP1.SGM
05FEP1
Federal Register / Vol. 73, No. 24 / Tuesday, February 5, 2008 / Proposed Rules
type design, CAA (Civil Aviation Authority)
Netherlands issued AD NL–2006–011 to
require inspection of the Piccolo Tubes and
the surrounding structure to establish correct
installation, as well as the replacement of the
460-series Peri-seals by the improved 600series, which have a higher temperature
limit.
Since the issuance of that AD, Fokker has
developed a modification, published as
Component Service Bulletin (CSB) D14000–
57–007, for spare wing leading edge sections
that may still contain the 460-series Periseals. For that reason, this EASA AD retains
the requirements of AD NL–2006–011 and
adds a limit for the allowed use of
unmodified wing leading edge section as
replacement part.
The corrective actions include inspection of
the piccolo tubes and the wing leading edge
for damage and replacement of the Peri-seals
or repair of damage, as applicable.
Actions and Compliance
(f) Unless already done, do the following
actions.
(1) Within 4,000 flight hours or 12 months
after the effective date of this AD, whichever
occurs first, do the actions in paragraphs
(f)(1)(i) and (f)(1)(ii) of this AD in accordance
with the Accomplishment Instructions of
Fokker Service Bulletin SBF100–30–028,
Revision 1, dated April 17, 2007.
(i) Inspect for damage of the piccolo tubes
and the wing leading edge on the outside and
on the inside at the access panels. If any
damage is found that is beyond the limits
specified in the service bulletin, repair before
further flight.
(ii) Replace the 460-series Peri-seals in the
riblets with improved 600-series Peri-seals.
(2) As of 12 months after the effective date
of this AD, no person may install on any
airplane a spare wing leading edge section
unless the leading edge section has been
modified in accordance with Fokker
Component Service Bulletin D14000–57–007,
dated April 17, 2007.
(3) Actions done before the effective date
of this AD in accordance with Fokker Service
Bulletin SBF100–30–028, dated May 18,
2006, are considered acceptable for
compliance with the actions required by
paragraph (f)(1) of this AD.
FAA AD Differences
rmajette on PROD1PC64 with PROPOSALS
Note: This AD differs from the MCAI and/
or service information as follows: No
differences.
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, International Branch,
ANM–116, Transport Airplane Directorate,
FAA, 1601 Lind Avenue, SW., Renton,
Washington 98057–3356; telephone (425)
227–1137; fax (425) 227–1149. Before using
any approved AMOC on any airplane to
VerDate Aug<31>2005
15:29 Feb 04, 2008
Jkt 214001
which the AMOC applies, notify your
appropriate principal inspector (PI) in the
FAA Flight Standards District Office (FSDO),
or lacking a PI, your local FSDO.
(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 European Aviation Safety
Agency (EASA) Airworthiness Directive
2007–0229, dated August 15, 2007, Fokker
Service Bulletin SBF100–30–028, Revision 1,
dated April 17, 2007, and Fokker Component
Service Bulletin D14000–57–007, dated April
17, 2007, for related information.
Issued in Renton, Washington, on January
24, 2008.
Ali Bahrami,
Manager, Transport Airplane Directorate,
Aircraft Certification Service.
[FR Doc. E8–1991 Filed 2–4–08; 8:45 am]
BILLING CODE 4910–13–P
DEPARTMENT OF TRANSPORTATION
Federal Aviation Administration
14 CFR Part 39
[Docket No. FAA–2008–0119; Directorate
Identifier 2007–NM–304–AD]
RIN 2120–AA64
Airworthiness Directives; Empresa
Brasileira de Aeronautica S.A.
(EMBRAER) Model ERJ 170 Airplanes
and Model ERJ 190 Airplanes
Federal Aviation
Administration (FAA), Department of
Transportation (DOT).
ACTION: Notice of proposed rulemaking
(NPRM).
AGENCY:
SUMMARY: The FAA proposes to
supersede an existing airworthiness
directive (AD) that applies to all
EMBRAER Model ERJ 170–100 LR, –100
SE, –100 STD, and –100 SU airplanes;
and Model ERJ 190–100 IGW, –100 LR,
and –100 STD airplanes. The existing
AD currently requires revising the
Limitations section of the airplane flight
manual (AFM) to prohibit the flightcrew
from moving the throttle into the
forward thrust range immediately after
applying the thrust reverser. This
PO 00000
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6631
proposed AD would add additional
airplanes to the applicability and would
require the AFM revision for those
additional airplanes. For certain
airplanes, this proposed AD would also
require installing new, improved fullauthority digital engine-control
(FADEC) software. This proposed AD
results from a report that, during
landing, the thrust reverser may not restow completely if the throttle lever is
moved into the forward thrust range
immediately after the thrust reverser is
applied. We are proposing this AD to
prevent the flightcrew from performing
a takeoff with a partially deployed
thrust reverser, which could result in
reduced controllability of the airplane.
DATES: We must receive comments on
this proposed AD by March 6, 2008.
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
W12–140, 1200 New Jersey Avenue, SE.,
Washington, DC 20590, between 9 a.m.
and 5 p.m., Monday through Friday,
except Federal holidays.
For service information identified in
this AD, contact Empresa Brasileira de
Aeronautica S.A. (EMBRAER), P.O. Box
343—CEP 12.225, Sao Jose dos
Campos—SP, Brazil.
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
(telephone 800–647–5527) is in the
ADDRESSES section. Comments will be
available in the AD docket shortly after
receipt.
FOR FURTHER INFORMATION CONTACT: Dan
Rodina, Aerospace Engineer,
International Branch, ANM–116,
Transport Airplane Directorate, FAA,
1601 Lind Avenue, SW., Renton,
Washington 98057–3356; telephone
(425) 227–2125; fax (425) 227–1149.
SUPPLEMENTARY INFORMATION:
E:\FR\FM\05FEP1.SGM
05FEP1
]]>Agencies
[Federal Register Volume 73, Number 24 (Tuesday, February 5, 2008)]
[Proposed Rules]
[Pages 6629-6631]
From the Federal Register Online via the Government Printing Office [www.gpo.gov]
[FR Doc No: E8-1991]
-----------------------------------------------------------------------
DEPARTMENT OF TRANSPORTATION
Federal Aviation Administration
14 CFR Part 39
[Docket No. FAA-2008-0117; Directorate Identifier 2007-NM-273-AD]
RIN 2120-AA64
Airworthiness Directives; Fokker Model F.28 Mark 0070 and Mark
0100 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:
[L]eakage of hot wing anti-icing air from the Peri-seal housing.
This results in an uncontrolled flow of high-pressure hot air to
enter the forward (anti-icing) plenum chamber of the wing leading
edge, potentially damaging the anti-icing barrier webs.
Subsequently, the wing auxiliary spar can also be damaged by high-
pressure hot air. * * * [D]eterioration of the Peri-seals enables
the piccolo tubes to vibrate, resulting in a broken piccolo tube.
This condition, if not corrected, may cause heat damage to the front
spar that potentially affects the wing's load capability.
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 March 6, 2008.
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.
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: Tom Rodriguez, Aerospace Engineer,
International Branch, ANM-116, FAA, Transport Airplane Directorate,
1601 Lind Avenue, SW., Renton, Washington 98057-3356; telephone (425)
227-1137; 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-2008-0117;
Directorate Identifier 2007-NM-273-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 2007-0229, dated August 15, 2007 (referred to
after this as ``the MCAI''), to correct an unsafe condition for the
specified products. The MCAI states:
In 1997, Fokker introduced a new type of Peri-seal (SBF 100-30-
022). The old type was known to be subject to deterioration, which,
in combination with improper installation, can cause leakage of hot
wing anti-icing air from the Peri-seal housing. This results in an
uncontrolled flow of high-pressure hot air to enter the forward
(anti-icing) plenum chamber of the wing leading edge, potentially
damaging the anti-icing barrier webs. Subsequently, the wing
auxiliary spar can also be damaged by high-pressure hot air.
Analysis at the time showed that any resulting damage (known to
occur at inboard positions only) would not affect the wing load
capability. For this reason, the modification was not classified as
MANDATORY and no AD action was warranted. However, through a recent
occurrence, it was discovered that deterioration of the Peri-seals
enables the piccolo tubes to vibrate, resulting in a broken piccolo
tube. In this case, the location of the failure was more outboard
than previous occurrences. This condition, if not corrected, may
cause heat damage to the front spar that potentially affects the
wing's load capability. Since an unsafe condition was identified,
likely to exist or develop on an aircraft of this type design, CAA
(Civil Aviation Authority) Netherlands issued AD NL-2006-011 to
require inspection of the Piccolo Tubes and the surrounding
structure to establish correct installation, as well as the
replacement of the 460-series Peri-seals by the improved 600-series,
which have a higher temperature limit.
Since the issuance of that AD, Fokker has developed a
modification, published as
[[Page 6630]]
Component Service Bulletin (CSB) D14000-57-007, for spare wing
leading edge sections that may still contain the 460-series Peri-
seals. For that reason, this EASA AD retains the requirements of AD
NL-2006-011 and adds a limit for the allowed use of unmodified wing
leading edge section as replacement part.
The corrective actions include inspection of the piccolo tubes and the
wing leading edge for damage and replacement of the Peri-seals or
repair of damage, as applicable. You may obtain further information by
examining the MCAI in the AD docket.
Relevant Service Information
Fokker has issued Service Bulletin SBF100-30-028, Revision 1, dated
April 17, 2007, and Component Service Bulletin D14000-57-007, dated
April 17, 2007. 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 9 products of U.S. registry. We also estimate that
it would take about 48 work-hours per product to comply with the basic
requirements of this proposed AD. The average labor rate is $80 per
work-hour. Required parts would cost about $3,430 per product. Where
the service information lists required parts costs that are covered
under warranty, we have assumed that there will be no charge for these
costs. As we do not control warranty coverage for affected parties,
some parties may incur costs higher than estimated here. Based on these
figures, we estimate the cost of the proposed AD on U.S. operators to
be $65,430, or $7,270 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:
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:
Fokker Services B.V.: Docket No. FAA-2008-0117; Directorate
Identifier 2007-NM-273-AD.
Comments Due Date
(a) We must receive comments by March 6, 2008.
Affected ADs
(b) None.
Applicability
(c) This AD applies to Fokker Model F.28 Mark 0070 and Mark 0100
airplanes, certificated in any category, all serial numbers, except
those previously modified in accordance with Fokker Service Bulletin
SBF 100-30-022.
Subject
(d) Air Transport Association (ATA) of America Code 30: Ice and
Rain Protection.
Reason
(e) The mandatory continuing airworthiness information (MCAI)
states:
In 1997, Fokker introduced a new type of Peri-seal (SBF 100-30-
022). The old type was known to be subject to deterioration, which,
in combination with improper installation, can cause leakage of hot
wing anti-icing air from the Peri-seal housing. This results in an
uncontrolled flow of high-pressure hot air to enter the forward
(anti-icing) plenum chamber of the wing leading edge, potentially
damaging the anti-icing barrier webs. Subsequently, the wing
auxiliary spar can also be damaged by high-pressure hot air.
Analysis at the time showed that any resulting damage (known to
occur at inboard positions only) would not affect the wing load
capability. For this reason, the modification was not classified as
MANDATORY and no AD action was warranted. However, through a recent
occurrence, it was discovered that deterioration of the Peri-seals
enables the piccolo tubes to vibrate, resulting in a broken piccolo
tube. In this case, the location of the failure was more outboard
than previous occurrences. This condition, if not corrected, may
cause heat damage to the front spar that potentially affects the
wing's load capability. Since an unsafe condition was identified,
likely to exist or develop on an aircraft of this
[[Page 6631]]
type design, CAA (Civil Aviation Authority) Netherlands issued AD
NL-2006-011 to require inspection of the Piccolo Tubes and the
surrounding structure to establish correct installation, as well as
the replacement of the 460-series Peri-seals by the improved 600-
series, which have a higher temperature limit.
Since the issuance of that AD, Fokker has developed a
modification, published as Component Service Bulletin (CSB) D14000-
57-007, for spare wing leading edge sections that may still contain
the 460-series Peri-seals. For that reason, this EASA AD retains the
requirements of AD NL-2006-011 and adds a limit for the allowed use
of unmodified wing leading edge section as replacement part.
The corrective actions include inspection of the piccolo tubes and
the wing leading edge for damage and replacement of the Peri-seals
or repair of damage, as applicable.
Actions and Compliance
(f) Unless already done, do the following actions.
(1) Within 4,000 flight hours or 12 months after the effective
date of this AD, whichever occurs first, do the actions in
paragraphs (f)(1)(i) and (f)(1)(ii) of this AD in accordance with
the Accomplishment Instructions of Fokker Service Bulletin SBF100-
30-028, Revision 1, dated April 17, 2007.
(i) Inspect for damage of the piccolo tubes and the wing leading
edge on the outside and on the inside at the access panels. If any
damage is found that is beyond the limits specified in the service
bulletin, repair before further flight.
(ii) Replace the 460-series Peri-seals in the riblets with
improved 600-series Peri-seals.
(2) As of 12 months after the effective date of this AD, no
person may install on any airplane a spare wing leading edge section
unless the leading edge section has been modified in accordance with
Fokker Component Service Bulletin D14000-57-007, dated April 17,
2007.
(3) Actions done before the effective date of this AD in
accordance with Fokker Service Bulletin SBF100-30-028, dated May 18,
2006, are considered acceptable for compliance with the actions
required by paragraph (f)(1) of this AD.
FAA AD Differences
Note: This AD differs from the MCAI and/or service information
as follows: No differences.
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, International Branch, ANM-116,
Transport Airplane Directorate, FAA, 1601 Lind Avenue, SW., Renton,
Washington 98057-3356; telephone (425) 227-1137; fax (425) 227-1149.
Before using any approved AMOC on any airplane to which the AMOC
applies, notify your appropriate principal inspector (PI) in the FAA
Flight Standards District Office (FSDO), or lacking a PI, your local
FSDO.
(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 European Aviation Safety Agency (EASA)
Airworthiness Directive 2007-0229, dated August 15, 2007, Fokker
Service Bulletin SBF100-30-028, Revision 1, dated April 17, 2007,
and Fokker Component Service Bulletin D14000-57-007, dated April 17,
2007, for related information.
Issued in Renton, Washington, on January 24, 2008.
Ali Bahrami,
Manager, Transport Airplane Directorate, Aircraft Certification
Service.
[FR Doc. E8-1991 Filed 2-4-08; 8:45 am]
BILLING CODE 4910-13-P
