[Federal Register: January 18, 2008 (Volume 73, Number 13)]
[Proposed Rules]
[Page 3428-3430]
From the Federal Register Online via GPO Access [wais.access.gpo.gov]
[DOCID:fr18ja08-17]
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DEPARTMENT OF TRANSPORTATION
Federal Aviation Administration
14 CFR Part 39
[Docket No. FAA-2008-0035; Directorate Identifier 2007-CE-103-AD]
RIN 2120-AA64
Airworthiness Directives; British Aerospace Regional Aircraft
Model HP.137 Jetstream Mk.1, Jetstream Series 200, Jetstream Series
3101, and Jetstream Model 3201 Airplanes
AGENCY: Federal Aviation Administration (FAA), Department of
Transportation (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:
Two incidents have been reported where the normal hydraulic
supplies were lost due to failure/loss of the steering jack gland
housing. This has been attributed to pre-existing thread damage on
the steering jack gland housing. Three previous failures may also be
due to this failure mechanism.
Failure of the steering jack gland housing resulted in
significant damage to the right hand undercarriage bay door, and
could result in the nose landing gear jamming in a fully or
partially retracted position. Landing in such a condition is
considered as potentially unsafe due to the degraded control of the
aircraft post touch down.
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 February 19,
2008.
ADDRESSES: You may send comments by any of the following methods:
Federal eRulemaking Portal: Go to http://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.
Examining the AD Docket
You may examine the AD docket on the Internet at http://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: Taylor Martin, Aerospace Engineer,
FAA, Small Airplane Directorate, 901 Locust, Room 301, Kansas City,
Missouri 64106; telephone: (816) 329-4138; fax: (816) 329-4090.
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-2008-0035;
Directorate Identifier 2007-CE-103-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 http://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 AD
No. 2006-0128, dated May 18, 2006 (referred to after this as ``the
MCAI''), to correct an unsafe condition for the specified products. The
MCAI states:
Two incidents have been reported where the normal hydraulic
supplies were lost due to failure/loss of the steering jack gland
housing. This has been attributed to pre-existing thread damage on
the steering jack gland housing. Three previous failures may also be
due to this failure mechanism.
Failure of the steering jack gland housing resulted in
significant damage to the right hand undercarriage bay door, and
could result in the nose landing gear jamming in a fully or
partially retracted position. Landing in such a condition is
considered as potentially unsafe due to the degraded control of the
aircraft post touch down.
Changes to the gland have been introduced in order to prevent
further recurrence.
This proposed AD would require you to install a serviceable
steering jack.
You may obtain further information by examining the MCAI in the
AD docket.
Relevant Service Information
British Aerospace Regional Aircraft has issued British Aerospace
Jetstream Series 3100 and 3200 Service Bulletin 32-JM5417, Original
Issue: March 22, 2005. The actions described in this service
information are intended to correct the unsafe condition identified in
the MCAI.
FAA's Determination and Requirements of the 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 this State of Design Authority, they
have notified us of the unsafe condition described in the
[[Page 3429]]
MCAI and service information referenced above. We are proposing this AD
because we evaluated all information and determined the unsafe
condition exists and is likely to exist or develop on other products of
the same type design.
Differences Between This Proposed 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 149 products of U.S. registry. We also estimate that
it would take about 10 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 $100 per product.
Based on these figures, we estimate the cost of the proposed AD on
U.S. operators to be $134,100, or $900 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:
British Aerospace Regional Aircraft: Docket No. FAA-2008-0035;
Directorate Identifier 2007-CE-103-AD.
Comments Due Date
(a) We must receive comments by February 19, 2008.
Affected ADs
(b) None.
Applicability
(c) This AD applies to Model HP.137 Jetstream Mk.1, Jetstream
Series 200, Jetstream Series 3101, and Jetstream Model 3201
airplanes, all serial numbers, certificated in any category.
Subject
(d) Air Transport Association of America (ATA) Code 32: Landing
Gear.
Reason
(e) The mandatory continuing airworthiness information (MCAI)
states:
Two incidents have been reported where the normal hydraulic
supplies were lost due to failure/loss of the steering jack gland
housing. This has been attributed to pre-existing thread damage on
the steering jack gland housing. Three previous failures may also be
due to this failure mechanism.
Failure of the steering jack gland housing resulted in
significant damage to the right hand undercarriage bay door, and
could result in the nose landing gear jamming in a fully or
partially retracted position. Landing in such a condition is
considered as potentially unsafe due to the degraded control of the
aircraft post touch down.
Changes to the gland have been introduced in order to prevent
further recurrence.
This AD would require you to install a serviceable steering
jack.
Actions and Compliance
(f) Unless already done, within the next 12 months after the
effective date of this AD, install a serviceable steering jack that
has been modified following APPH Ltd. Service Bulletin 32-78, dated
February 2005, as specified in British Aerospace Jetstream Series
3100 and 3200 Service Bulletin 32-JM5417, Original Issue: March 22,
2005.
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,
Standards Office, 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: Taylor Martin, Aerospace Engineer, FAA, Small
Airplane Directorate, 901 Locust, Room 301, Kansas City, Missouri
64106; telephone: (816) 329-4138; fax: (816) 329-4090. 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 (44
U.S.C. 3501 et seq.), the Office of Management and Budget (OMB) has
approved the information collection requirements and has assigned
OMB Control Number 2120-0056.
Related Information
(h) Refer to MCAI European Aviation Safety Agency (EASA) AD No.
2006-0128,
[[Page 3430]]
dated May 18, 2006; and British Aerospace Jetstream Series 3100 and
3200 Service Bulletin 32-JM5417, Original Issue: March 22, 2005, for
related information.
Issued in Kansas City, Missouri, on January 11, 2008.
John Colomy,
Acting Manager, Small Airplane Directorate, Aircraft Certification
Service.
[FR Doc. E8-824 Filed 1-17-08; 8:45 am]
BILLING CODE 4910-13-P