[Federal Register: May 23, 2006 (Volume 71, Number 99)]
[Proposed Rules]
[Page 29595-29597]
From the Federal Register Online via GPO Access [wais.access.gpo.gov]
[DOCID:fr23my06-12]
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DEPARTMENT OF TRANSPORTATION
Federal Aviation Administration
14 CFR Part 39
[Docket No. FAA-2006-24640; Directorate Identifier 2006-CE-26-AD]
RIN 2120-AA64
Airworthiness Directives; Raytheon Aircraft Company Model 390
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
certain Raytheon Aircraft Company Model 390 airplanes. This proposed AD
would require you to inspect the spigot bearing, part number (P/N)
MS14104-16, for the proper position in the spigot fitting assembly and
to install the wing spigot bearing retainer kit, P/N 390-4304-0001.
This proposed AD results from two reports of the spigot bearing not
being positioned flush with the fitting assembly, but protruding
outside of the fitting assembly. We are proposing this AD to detect
spigot bearings that are not positioned flush with the fitting
assembly. This condition could result in the spigot bearing becoming
disengaged from the fitting assembly, which could cause motion between
the wing and the fuselage and degrade the structural integrity of the
wing attachment to the fuselage. This could lead to wing
[[Page 29596]]
separation and loss of control of the airplane.
DATES: We must receive comments on this proposed AD by July 21, 2006.
ADDRESSES: Use one of the following addresses to comment on this
proposed AD:
DOT Docket Web site: Go to http://dms.dot.gov and follow
the instructions for sending your comments electronically.
Government-wide rulemaking Web site: Go to http://www.regulations.gov
and follow the instructions for sending your
comments electronically.
Mail: Docket Management Facility; U.S. Department of
Transportation, 400 Seventh Street, SW., Nassif Building, Room PL-401,
Washington, DC 20590-0001.
Fax: (202) 493-2251.
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.
For service information identified in this proposed AD, contact
Raytheon Aircraft Company, 9709 East Central, Wichita, Kansas 67201.
FOR FURTHER INFORMATION CONTACT: David Ostrodka, Senior Aerospace
Engineer, Wichita Aircraft Certification Office, Airframe and Services
Branch, ACE-118W, 1801 Airport Road, Wichita, Kansas 67209; telephone:
(316) 946-4129; facsimile: (316) 946-4107; e-mail:
david.ostrodka@faa.gov.
SUPPLEMENTARY INFORMATION:
Comments Invited
We invite you to send any written relevant data, views, or
arguments regarding this proposed AD. Send your comments to an address
listed under the ADDRESSES section. Include the docket number, ``FAA-
2006-24640; Directorate Identifier 2006-CE-26-AD'' at the beginning of
your comments. We specifically invite comments on the overall
regulatory, economic, environmental, and energy aspects of the proposed
AD. We will consider all comments received by the closing date and may
amend the proposed AD in light of those comments.
We will post all comments we receive, without change, to http://dms.dot.gov
, including any personal information you provide. We will
also post a report summarizing each substantive verbal contact we
receive concerning this proposed AD.
Discussion
We have received two reports of the spigot bearing not being
positioned flush with the fitting assembly, but protruding outside of
the fitting assembly on Raytheon Aircraft Company Model 390 airplanes.
The spigot bearing transfers forward, aft, and side loads between the
wing and the fuselage. If the spigot bearing becomes disengaged from
the fitting assembly, inflight loads could cause motion between the
wing and the fuselage and degrade the structural integrity of the wing
attachment to the fuselage.
This condition, if not corrected, could result in wing separation
and loss of control of the airplane.
Relevant Service Information
We have reviewed Raytheon Aircraft Company Mandatory Service
Bulletin SB 53-3765, issued: November, 2005.
The service information describes procedures for:
Inspecting the spigot bearing for proper position in the
spigot fitting assembly; and
Installing the wing spigot bearing retainer kit P/N 390-
4304-0001.
FAA's Determination and Requirements of the Proposed AD
We are proposing this AD because we evaluated all information and
determined the unsafe condition described previously is likely to exist
or develop on other products of the same type design. This proposed AD
would require you to inspect the spigot bearing, P/N MS14104-16, for
proper position in the spigot fitting assembly and to install the wing
spigot bearing retainer kit, P/N 390-4304-0001.
Costs of Compliance
We estimate that this proposed AD would affect 78 airplanes in the
U.S. registry.
We estimate the following costs to do the proposed inspection:
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Total cost per Total cost on
Labor cost Parts cost airplane U.S. operators
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2 workhours x $80 per hour = $160......... Not applicable.................... $160 $12,480
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We estimate the following costs to do the installation of the
spigot bearing retainer kit, P/N 390-4304-0001:
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Total cost per Total cost on
Labor cost Parts cost airplane U.S. operators
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8 workhours x $80 per hour = $640............................ $1,442 $2,082 $162,396
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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 have 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 that the proposed
regulation:
[[Page 29597]]
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.
Examining the AD Docket
You may examine the AD docket that contains the proposed AD, the
regulatory evaluation, any comments received, and other information 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 Docket Office (telephone (800) 647-5227)
is located at the street address stated 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, 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:
Raytheon Aircraft Company: Docket No. FAA-2006-24640; Directorate
Identifier 2006-CE-26-AD.
Comments Due Date
(a) We must receive comments on this airworthiness directive
(AD) action by July 21, 2006.
Affected ADs
(b) None.
Applicability
(c) This AD affects Model 390 airplanes, serial numbers RB-1 and
RB-4 through RB-139, that are certificated in any category.
Unsafe Condition
(d) This proposed AD results from two reports of the spigot
bearing not being positioned flush with the fitting assembly, but
protruding outside of the fitting assembly. We are proposing this AD
to detect spigot bearings that are not positioned flush with the
fitting assembly. This condition could result in the spigot bearing
becoming disengaged from the fitting assembly, which could cause
motion between the wing and the fuselage and degrade the structural
integrity of the wing attachment to the fuselage. This could lead to
wing separation and loss of control of the airplane.
Compliance
(e) To address this problem, you must do the following:
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Actions Compliance Procedures
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(1) Inspect to determine Within 50 hours time- Follow Raytheon
whether the spigot bearing, in-service (TIS) Aircraft Company
part number (P/N) MS14104- after the effective Mandatory Service
16, is positioned flush date of this AD, Bulletin SB 53-
inside the spigot fitting and repetitively 3765, issued:
assembly and not protruding inspect thereafter November, 2005.
outside of the fitting every 50 hours TIS
assembly. until the
installation in
paragraph (e)(2) of
this AD is done.
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(2) Install the spigot At whichever of the Follow Raytheon
bearing retainer kit, P/N following occurs Aircraft Company
390-4304-0001. This first, unless Mandatory Service
installation terminates the already done: Bulletin SB 53-
inspection requirements in (i) Before further 3765, issued:
paragraph (e)(1) of this AD. flight after any November, 2005.
inspection required
by this AD where
the spigot bearing,
P/N MS14104-16, is
found not to be
flush with the
spigot fitting
assembly; or.
(ii) Within 200
hours TIS or one
calendar year after
the effective date
of this AD,
whichever occurs
first.
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Alternative Methods of Compliance (AMOCs)
(f) The Manager, Wichita Aircraft Certification Office (ACO),
FAA, ATTN: David Ostrodka, Senior Aerospace Engineer, Wichita ACO,
Airframe and Services Branch, ACE-118W, 1801 Airport Road, Wichita,
Kansas 67209; telephone: (316) 946-4129; facsimile: (316) 946-4107
has the authority to approve AMOCs for this AD, if requested using
the procedures found in 14 CFR 39.19.
Related Information
(g) To get copies of the documents referenced in this AD,
contact Raytheon Aircraft Company, 9709 East Central, Wichita,
Kansas 67201. To view the AD docket, go to the Docket Management
Facility; U.S. Department of Transportation, 400 Seventh Street,
SW., Nassif Building, Room PL-401, Washington, DC, or on the
Internet at http://dms.dot.gov. The docket number is Docket No. FAA-
2006-24640; Directorate Identifier 2006-CE-26-AD.
Issued in Kansas City, Missouri, on May 17, 2006.
James E. Jackson,
Acting Manager, Small Airplane Directorate, Aircraft Certification
Service.
[FR Doc. E6-7828 Filed 5-22-06; 8:45 am]
BILLING CODE 4910-13-P