FR Doc E7-13793

[Federal Register: July 18, 2007 (Volume 72, Number 137)]
[Rules and Regulations]
[Page 39310-39312]
From the Federal Register Online via GPO Access [wais.access.gpo.gov]
[DOCID:fr18jy07-3]

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DEPARTMENT OF TRANSPORTATION

Federal Aviation Administration

14 CFR Part 39

[Docket No. FAA-2007-27861 Directorate Identifier 2007-CE-035-AD;
Amendment 39-15130; AD 2007-15-01]
RIN 2120-AA64

Airworthiness Directives; British Aerospace Regional Aircraft
Jetstream 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: 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) issued 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:

We are issuing this AD to require actions to correct the unsafe
condition on these products.

DATES: This AD becomes effective August 22, 2007.
On August 22, 2007, the Director of the Federal Register approved
the incorporation by reference of certain publications listed in this
AD.

ADDRESSES: You may examine the AD docket on the Internet at http://dms.dot.gov
or in person at Document Management Facility, U.S.

Department of Transportation, Docket Operations, M-30, West Building
Ground Floor, Room W12-140, 1200 New Jersey Avenue, SE., Washington, DC
20590.

FOR FURTHER INFORMATION CONTACT: Taylor Martin, Aerospace Engineer,
FAA, Small Airplane Directorate, 901 Locust, Room 301, Kansas City,
Missouri 64106; telephone: (816) 329-4138; facsimile: (816) 329-4090.

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 May 18, 2007 (72 FR
28005). That NPRM proposed to correct an unsafe condition for the
specified products. The MCAI states:

In-service reports have been received by BAE of failed bolts
fitted to frame 199 wing spigot post assembly. If left uncorrected
failure of these bolts will severely compromise the structural
integrity of the wing to fuselage attachment. Failure of which would
lead to loss of the aircraft. To address these concerns, BAE issued
SB 57-JA020740 original issue in February 2003 mandated by CAA AD
006-02-2003. Recently received additional information has caused BAE
to raise the Service Bulletin to revision 2. Revision 2 of the SB
introduces various changes. One is substantive, it relates to the
need to check for correct washer installation. Incorrect
installation could lead to fretting and fatigue crack initiation in
the fitting followed by failure or bending loads in the bolt leading
to failure of the affected bolts. If left uncorrected failure of
these bolts or a wing fitting will severely compromise the
structural integrity of the wing to fuselage attachment. Failure of
which would lead to loss of the aircraft. This substantive change to
the service bulletin necessitates the raising of this superseding
AD.

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.

[[Page 39311]]

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 FAA policies. Any such differences are
highlighted in a NOTE within the AD.

Costs of Compliance

We estimate that this AD will affect 195 products of U.S. registry.
We also estimate that it will take about 50 work-hours per product to
comply with basic requirements of this AD. The average labor rate is
$80 per work-hour. Required parts will cost about $100 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 parts. As we do not control warranty coverage for affected
parties, some parties may incur costs higher than estimated here. We
estimate the cost of this AD to the U.S. operators to be $799,500, or
$4,100 per product.
In addition, we estimate that any necessary follow-on actions will
take about 25 work-hours and require parts costing $100, for a cost of
$2,100 per product. We have no way of determining the number of
products that may need these actions.

Authority for This Rulemaking

Title 49 of the United States Code specifies the FAA's authority to
issue rules on aviation safety. Subtitle I, section 106, describes the
authority of the FAA Administrator. ``Subtitle VII: Aviation
Programs,'' describes in more detail the scope of the Agency's
authority.
We are issuing this rulemaking under the authority described in
``Subtitle VII, Part A, Subpart III, Section 44701: General
requirements.'' Under that section, Congress charges the FAA with
promoting safe flight of civil aircraft in air commerce by prescribing
regulations for practices, methods, and procedures the Administrator
finds necessary for safety in air commerce. This regulation is within
the scope of that authority because it addresses an unsafe condition
that is likely to exist or develop on products identified in this
rulemaking action.

Regulatory Findings

We determined that this 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 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://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 the NPRM, 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.

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:

2007-15-01 British Aerospace Regional Aircraft: Amendment 39-15130;
Docket No. FAA-2007-27861; Directorate Identifier 2007-CE-035-AD.

Effective Date

(a) This airworthiness directive (AD) becomes effective August
22, 2007.

Affected ADs

(b) None.

Applicability

(c) This AD applies to Jetstream 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 57: Wings.

Reason

(e) The mandatory continuing airworthiness information (MCAI)
states:

Actions and Compliance

(f) Unless already done, do the following actions using British
Aerospace Jetstream Series 3100 and 3200 Service Bulletin 57-
JA020740, Revision 2, dated November 2, 2005.
(1) Inspect and torque check the bolts at frame 199 at the
following compliance times:
(i) Initially within the next 90 days after August 22, 2007 (the
effective date of this AD) or within the next 100 hours time-in-
service (TIS) after August 22, 2007 (the effective date of this AD),
whichever occurs first; and
(ii) Repetitively thereafter at intervals not to exceed 4,000
hours TIS.
(2) If any discrepancies are found in any of the inspections
required in paragraph (f)(1) of this AD, before further flight,
correct any discrepancies.

FAA AD Differences

Note: This AD differs from the MCAI and/or service information
as follows: We added repetitive inspection requirements in this AD
to coincide with the service bulletin.

Other FAA AD Provisions

(g) The following provisions also apply to this AD:
(1) Alternative Methods of Compliance (AMOCs): The Manager,
Standards Staff,

[[Page 39312]]

FAA, 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; has the authority to
approve AMOCs for this AD, if requested using the procedures found
in 14 CFR 39.19. 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 European Aviation Safety Agency (EASA) AD No: G-
2006-0003, dated February 2, 2006; and BAE SYSTEMS Jetstream Series
3100 and 3200 Service Bulletin 57-JA020740, Revision 2, dated
November 2, 2005, for related information.

Material Incorporated by Reference

You must use BAE SYSTEMS Jetstream Series 3100 and 3200 Service
Bulletin 57-JA020740, Revision 2, dated November 2, 2005, 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 BAE
Systems, Prestwick International Airport, Ayrshire, KA9 2RW,
Scotland.
(3) You may review copies at the FAA, Central Region, Office of
the Regional Counsel, 901 Locust, Room 506, Kansas City, Missouri
64106; 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 Kansas City, Missouri, on July 9, 2007.
Sandra J. Campbell,
Acting Manager, Small Airplane Directorate, Aircraft Certification
Service.
[FR Doc. E7-13793 Filed 7-17-07; 8:45 am]

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