[Federal Register: November 6, 2007 (Volume 72, Number 214)]
[Rules and Regulations]
[Page 62562-62564]
From the Federal Register Online via GPO Access [wais.access.gpo.gov]
[DOCID:fr06no07-3]
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DEPARTMENT OF TRANSPORTATION
Federal Aviation Administration
14 CFR Part 39
[Docket No. FAA-2007-29064; Directorate Identifier 2007-NM-128-AD;
Amendment 39-15249; AD 2007-23-03]
RIN 2120-AA64
Airworthiness Directives; Fokker Model F.28 Mark 0070 and 0100
Airplanes
AGENCY: Federal Aviation Administration (FAA), Department of
Transportation (DOT).
ACTION: Final rule.
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SUMMARY: We are adopting a new airworthiness directive (AD) for the
products listed above. This AD results from mandatory continuing
airworthiness information (MCAI) originated by an aviation authority of
another country to identify and correct an unsafe condition on an
aviation product. The MCAI describes the unsafe condition as:
One Fokker 100 (F28 Mark 0100) operator reported that during
maintenance in the APU (auxiliary power unit) compartment, a
disconnected nut was discovered on one of the shuttle valves in the
deployment lines of the engine fire-extinguishing system. An
additional check by the operator revealed that on more aircraft in
its fleet, the nuts of the shuttle valves were incorrectly
tightened. This condition, if not corrected, could result in failure
or deteriorated functioning of the engine fire-extinguishing system
in case of an engine fire.
We are issuing this AD to require actions to correct the unsafe
condition on these products.
DATES: This AD becomes effective December 11, 2007.
The Director of the Federal Register approved the incorporation by
reference of a certain publication listed in this AD as of December 11,
2007.
ADDRESSES: You may examine the AD docket on the Internet at http://www.regulations.gov
or in person at the U.S. Department of
Transportation, Docket Operations, M-30, West Building Ground Floor,
Room W12-140, 1200 New Jersey Avenue, SE., Washington, DC.
[[Page 62563]]
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:
Discussion
We issued a notice of proposed rulemaking (NPRM) to amend 14 CFR
part 39 to include an AD that would apply to the specified products.
That NPRM was published in the Federal Register on August 31, 2007 (72
FR 50274). That NPRM proposed to correct an unsafe condition for the
specified products. The MCAI states:
One Fokker 100 (F28 Mark 0100) operator reported that during
maintenance in the APU (auxiliary power unit) compartment, a
disconnected nut was discovered on one of the shuttle valves in the
deployment lines of the engine fire-extinguishing system. An
additional check by the operator revealed that on more aircraft in
its fleet, the nuts of the shuttle valves were incorrectly
tightened. This condition, if not corrected, could result in failure
or deteriorated functioning of the engine fire-extinguishing system
in case of an engine fire. Since a potentially unsafe condition has
been identified that is likely to exist or develop on other aircraft
of this type design, this Airworthiness Directive requires a one-
time inspection of the nuts and shuttle valves in the deployment
lines of the engine fire-extinguishing system in the APU compartment
and corrective actions, as necessary.
The one-time inspection is intended to find discrepancies, including
incorrectly installed or tightened nuts, and signs of leakage, damage,
or corrosion. Corrective actions include tightening or replacing
discrepant nuts or shuttle valves, as applicable. You may obtain
further information by examining the MCAI in the AD docket.
Comments
We gave the public the opportunity to participate in developing
this AD. We received no comments on the NPRM or on the determination of
the cost to the public.
Conclusion
We reviewed the available data and determined that air safety and
the public interest require adopting the AD as proposed.
Differences Between This AD and the MCAI or Service Information
We have reviewed the MCAI and related service information and, in
general, agree with their substance. But we might have found it
necessary to use different words from those in the MCAI to ensure the
AD is clear for U.S. operators and is enforceable. In making these
changes, we do not intend to differ substantively from the information
provided in the MCAI and related service information.
We might also have required different actions in this AD from those
in the MCAI in order to follow our FAA policies. Any such differences
are highlighted in a NOTE within the AD.
Costs of Compliance
We estimate that this AD will affect about 13 products of U.S.
registry. We also estimate that it will take about 1 work-hour per
product to comply with the basic requirements of this AD. The average
labor rate is $80 per work-hour. Based on these figures, we estimate
the cost of this AD to the U.S. operators to be $1,040, or $80 per
product.
Authority for This Rulemaking
Title 49 of the United States Code specifies the FAA's authority to
issue rules on aviation safety. Subtitle I, section 106, describes the
authority of the FAA Administrator. ``Subtitle VII: Aviation
Programs,'' describes in more detail the scope of the Agency's
authority.
We are issuing this rulemaking under the authority described in
``Subtitle VII, Part A, Subpart III, Section 44701: General
requirements.'' Under that section, Congress charges the FAA with
promoting safe flight of civil aircraft in air commerce by prescribing
regulations for practices, methods, and procedures the Administrator
finds necessary for safety in air commerce. This regulation is within
the scope of that authority because it addresses an unsafe condition
that is likely to exist or develop on products identified in this
rulemaking action.
Regulatory Findings
We determined that this AD will not have federalism implications
under Executive Order 13132. This AD will not have a substantial direct
effect on the States, on the relationship between the national
government and the States, or on the distribution of power and
responsibilities among the various levels of government.
For the reasons discussed above, I certify this AD:
1. Is not a ``significant regulatory action'' under Executive Order
12866;
2. Is not a ``significant rule'' under the DOT Regulatory Policies
and Procedures (44 FR 11034, February 26, 1979); and
3. Will not have a significant economic impact, positive or
negative, on a substantial number of small entities under the criteria
of the Regulatory Flexibility Act.
We prepared a regulatory evaluation of the estimated costs to
comply with this AD and placed it in the AD docket.
Examining the AD Docket
You may examine the AD docket on the Internet at http://www.regulations.gov
; or in person at the Docket Operations office
between 9 a.m. and 5 p.m., Monday through Friday, except Federal
holidays. The AD docket contains the NPRM, the regulatory evaluation,
any comments received, and other information. The street address for
the Docket Operations office (telephone (800) 647-5527) is in the
ADDRESSES section. Comments will be available in the AD docket shortly
after receipt.
List of Subjects in 14 CFR Part 39
Air transportation, Aircraft, Aviation safety, Incorporation by
reference, Safety.
Adoption of the Amendment
0
Accordingly, under the authority delegated to me by the Administrator,
the FAA amends 14 CFR part 39 as follows:
PART 39--AIRWORTHINESS DIRECTIVES
0
1. The authority citation for part 39 continues to read as follows:
Authority: 49 U.S.C. 106(g), 40113, 44701.
Sec. 39.13 [Amended]
0
2. The FAA amends Sec. 39.13 by adding the following new AD:
2007-23-03 Fokker Services B.V.: Amendment 39-15249. Docket No. FAA-
2007-29064; Directorate Identifier 2007-NM-128-AD.
Effective Date
(a) This airworthiness directive (AD) becomes effective December
11, 2007.
Affected ADs
(b) None.
Applicability
(c) This AD applies to Fokker Model F.28 Mark 0070 and 0100
airplanes, all serial numbers; certificated in any category.
Subject
(d) Air Transport Association (ATA) of America Code 26: Fire
protection.
Reason
(e) The mandatory continuing airworthiness information (MCAI)
states:
One Fokker 100 (F28 Mark 0100) operator reported that during
maintenance in the APU (auxiliary power unit) compartment, a
disconnected nut was discovered on one of the shuttle valves in the
deployment lines of the engine fire-extinguishing system. An
[[Page 62564]]
additional check by the operator revealed that on more aircraft in
its fleet, the nuts of the shuttle valves were incorrectly
tightened. This condition, if not corrected, could result in failure
or deteriorated functioning of the engine fire-extinguishing system
in case of an engine fire. Since a potentially unsafe condition has
been identified that is likely to exist or develop on other aircraft
of this type design, this Airworthiness Directive requires a one-
time inspection of the nuts and shuttle valves in the deployment
lines of the engine fire-extinguishing system in the APU compartment
and corrective actions, as necessary.
The one-time inspection is intended to find discrepancies, including
incorrectly installed or tightened nuts, and signs of leakage,
damage or corrosion. Corrective actions include tightening or
replacing discrepant nuts or shuttle valves, as applicable.
Actions and Compliance
(f) Unless already done, do the following actions.
(1) Within 6 months after the effective date of this AD, inspect
the nuts on the affected shuttle valves in accordance with Section
3., ``Accomplishment Instructions,'' of Fokker Service Bulletin
SBF100-26-019, dated January 6, 2006.
(2) When discrepancies are found during the inspection as
required by paragraph (f)(1) of this AD, before next flight, tighten
or replace the affected nuts, or replace the shuttle valves; as
applicable; in accordance with Section 3., ``Accomplishment
Instructions,'' of Fokker Service Bulletin SBF100-26-019, dated
January 6, 2006.
Note 1: Fokker 70/100 Aircraft Maintenance Manual Task 26-21-03-
400-814-A also pertains to this subject.
FAA AD Differences
Note 2: This AD differs from the MCAI and/or service information
as follows: No difference.
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, 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, FAA, Transport Airplane Directorate,
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 MCAI Dutch Airworthiness Directive NL-2006-002,
dated January 24, 2006, and Fokker Service Bulletin SBF100-26-019,
dated January 6, 2006, for related information.
Material Incorporated by Reference
(i) You must use Fokker Service Bulletin SBF100-26-019, dated
January 6, 2006, to do the actions required by this AD, unless the
AD specifies otherwise.
(1) The Director of the Federal Register approved the
incorporation by reference of this service information under 5
U.S.C. 552(a) and 1 CFR part 51.
(2) For service information identified in this AD, contact
Fokker Services B.V., Technical Services Dept., P.O. Box 231, 2150
AE Nieuw-Vennep, the Netherlands.
(3) You may review copies at the FAA, Transport Airplane
Directorate, 1601 Lind Avenue SW., Renton, Washington; or at the
National Archives and Records Administration (NARA). For information
on the availability of this material at NARA, call (202) 741-6030,
or go to: http://www.archives.gov/federal-register/cfr/ibr-locations.html
.
Issued in Renton, Washington, on October 27, 2007.
Stephen P. Boyd,
Assistant Manager, Transport Airplane Directorate, Aircraft
Certification Service.
[FR Doc. E7-21673 Filed 11-5-07; 8:45 am]
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