[Federal Register: October 7, 2008 (Volume 73, Number 195)]
[Rules and Regulations]
[Page 58436-58438]
From the Federal Register Online via GPO Access [wais.access.gpo.gov]
[DOCID:fr07oc08-3]
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DEPARTMENT OF TRANSPORTATION
Federal Aviation Administration
14 CFR Part 39
[Docket No. FAA-2008-0976; Directorate Identifier 2008-NM-145-AD;
Amendment 39-15685; AD 2008-21-01]
RIN 2120-AA64
Airworthiness Directives; Hawker Beechcraft Corporation Model
BAe.125 Series 800A (including C-29A and U-125) Airplanes, and Hawker
Beechcraft Model Hawker 800XP Airplanes
AGENCY: Federal Aviation Administration (FAA), DOT.
ACTION: Final rule; request for comments.
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SUMMARY: We are adopting a new airworthiness directive (AD) for certain
Hawker Beechcraft Corporation Model BAe.125 series 800A (including C-
29A and U-125) airplanes, and Hawker Beechcraft Model Hawker 800XP
airplanes. This AD requires doing an inspection to determine the serial
number and part number on the main landing gear (MLG) upper casing, and
replacing the MLG assembly with a serviceable MLG assembly if
necessary. This AD results from a report indicating that the MLG
casings have received improper hydrogen embrittlement relief. We are
issuing this AD to prevent a fracture of the MLG casings and a collapse
of the affected MLG, which could adversely affect the airplane's
continued safe flight and landing.
DATES: This AD is effective October 22, 2008.
The Director of the Federal Register approved the incorporation by
reference of a certain publication listed in this AD as of October 22,
2008.
We must receive comments on this AD by December 8, 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.
For service information identified in this AD, contact Hawker
Beechcraft Corporation, 9709 East Central, Wichita, Kansas 67206.
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 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: William Griffith, Aerospace Engineer,
Airframe Branch, ACE-118W, FAA, Wichita Aircraft Certification Office,
1801 Airport Road, Room 100, Mid-Continent Airport, Wichita, Kansas
67209; telephone (316) 946-4116; fax (316) 946-4107.
SUPPLEMENTARY INFORMATION:
Discussion
We have received a report indicating that the main landing gear
(MLG) casings have improper hydrogen embrittlement relief on certain
Hawker Beechcraft Corporation Model BAe.125 series 800A (including C-
29A and U-125) airplanes, and Hawker Beechcraft Model Hawker 800XP
airplanes. Certain MLG casings did not receive proper hydrogen
embrittlement relief during production. Improper hydrogen embrittlement
relief, if not corrected, could result in a fracture of the MLG casings
and a collapse of the affected MLG, which could adversely affect the
airplane's continued safe flight and landing.
Relevant Service Information
We have reviewed Hawker Beechcraft Mandatory Service Bulletin SB
32-3920, dated August 2008. The service bulletin describes procedures
for doing an inspection to determine the serial number and part number
on the MLG assembly, and replacing the MLG assembly with a serviceable
MLG assembly if necessary. The service bulletin also specifies to
contact the manufacturer to report if any affected serial number is
found, return spare parts to the manufacturer and report accomplishment
of the service bulletin.
FAA's Determination and Requirements of This AD
We are issuing this AD because we evaluated all the relevant
information and determined the unsafe condition described previously is
likely to exist or develop in other products of the same type design.
This AD requires accomplishing the actions specified in the service
information described previously, except as discussed under
``Differences Between the Service Bulletin and This AD.''
Differences Between the Service Bulletin and This AD
Although paragraph 1.D., ``Compliance'' of Hawker Beechcraft
Mandatory Service Bulletin SB 32-3920, dated August 2008, specifies a
compliance time of within 200 flight cycles since installation of the
affected MLG assembly, or within 60 days after the receipt of the
service bulletin, whichever occurs first, this AD does not include that
compliance time. We have determined that a compliance time of 30 days
after the effective date of this AD is necessary to address the unsafe
condition. In developing an appropriate compliance time of this AD, we
considered the manufacturer's recommendation, the degree of urgency
associated with the subject unsafe condition, the average utilization
of the affected fleet, and the time necessary to perform the
inspection. The difference has been coordinated with Hawker Beechcraft
Corporation.
Although the Accomplishment Instructions of Hawker Beechcraft
Mandatory Service Bulletin SB 32-3920, dated August 2008, specify the
following actions, this AD does not include those requirements.
Contact the manufacturer if no affected serial number is
found;
Return spare parts to the manufacturer; and
Report accomplishment of the service bulletin.
The Accomplishment Instructions of Hawker Beechcraft Mandatory
Service Bulletin SB 32-3920, dated August 2008, specify to inspect for
serial numbers on the MLG assembly to determine if any MLG assembly
with a serial number identified in Table 1 of the service bulletin is
installed on the airplane. The accomplishment instructions do not
specify an inspection to determine if any part identified in the
``spares'' paragraph 1.A.(2) of the service bulletin is installed. In
order to address all affected parts, this AD requires doing an
inspection to determine if the serial number and part number of the MLG
upper casings are from either Table 1 or paragraph 1.A.(2) of the
service bulletin.
FAA's Justification and Determination of the Effective Date
Improper hydrogen embrittlement relief of the MLG casings could
result in a fracture of the MLG casings and a
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collapse of the affected MLG, which could adversely affect the
airplane's continued safe flight and landing. Because of our
requirement to promote safe flight of civil aircraft and thus, the
critical need to assure the proper functioning of the MLG assembly and
the short compliance time involved with this action, this AD must be
issued immediately.
Because an unsafe condition exists that requires the immediate
adoption of this AD, we find that notice and opportunity for prior
public comment hereon are impracticable and that good cause exists for
making this amendment effective in less than 30 days.
Comments Invited
This AD is a final rule that involves requirements affecting flight
safety, and we did not provide you with notice and an opportunity to
provide your comments before it becomes effective. However, we invite
you to send any written data, views, or arguments about this AD. Send
your comments to an address listed under the ADDRESSES section. Include
``Docket No. FAA-2008-0976; Directorate Identifier 2008-NM-145-AD'' at
the beginning of your comments. We specifically invite comments on the
overall regulatory, economic, environmental, and energy aspects of this
AD. We will consider all comments received by the closing date and may
amend this 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 AD.
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
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 that 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.
You can find our regulatory evaluation and the estimated costs of
compliance in the AD Docket.
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:
2008-21-01 Hawker Beechcraft Corporation (Formerly Raytheon Aircraft
Company): Amendment 39-15685. Docket No. FAA-2008-0976; Directorate
Identifier 2008-NM-145-AD.
Effective Date
(a) This airworthiness directive (AD) is effective October 22,
2008.
Affected ADs
(b) None.
Applicability
(c) This AD applies to Hawker Beechcraft Corporation Model
BAe.125 series 800A (including C-29A and U-125) airplanes, and
Hawker Beechcraft Model Hawker 800XP airplanes, certificated in any
category; having serial numbers identified in Hawker Beechcraft
Mandatory Service Bulletin SB 32-3920, dated August 2008.
Unsafe Condition
(d) This AD results from a report indicating that the main
landing gear (MLG) casings have received improper hydrogen
embrittlement relief. We are issuing this AD to prevent a fracture
of the MLG casings and a collapse of the affected MLG, which could
adversely affect the airplane's continued safe flight and landing.
Compliance
(e) Comply with this AD within the compliance times specified,
unless already done.
Inspection
(f) Within 30 days after the effective date of this AD, do the
actions specified in paragraphs (f)(1) and (f)(2) of this AD.
(1) Do an inspection to determine whether an MLG upper casing,
having a serial number and part number identified in Table 1 of the
Accomplishment Instructions of Hawker Beechcraft Mandatory Service
Bulletin SB 32-3920, dated August 2008, is installed.
(2) Do an inspection to determine whether an MLG upper casing,
having a part number and serial number identified in paragraph
1.A.(2) of Hawker Beechcraft Mandatory Service Bulletin SB 32-3920,
dated August 2008, is installed.
Replacement
(g) If any MLG upper casing having a serial number and part
number identified in Table 1 of Hawker Beechcraft Mandatory Service
Bulletin SB 32-3920, dated August 2008, or in paragraph 1.A.(2) of
the service bulletin, is found during the inspection required by
paragraph (f) of this AD: Within 30 days after the effective date of
this AD, replace the MLG assembly with a serviceable MLG assembly,
in accordance with the Accomplishment Instructions of Hawker
Beechcraft Mandatory Service Bulletin SB 32-3920, dated August 2008.
Actions Not Required
(h) Although the Accomplishment Instructions of Hawker
Beechcraft Mandatory Service Bulletin SB 32-3920, dated August 2008,
specify to contact the manufacturer, return spare parts to the
manufacturer, and report accomplishment of the service bulletin to
the manufacturer, this AD does not include those requirements.
Parts Installation
(i) As of the effective date of this AD, no person may install,
on any airplane, a MLG assembly having any serial number identified
in Table 1 of the Accomplishment Instructions of Hawker Beechcraft
Mandatory Service Bulletin SB 32-3920, dated August 2008.
(j) As of the effective date of this AD, no person may install,
on any airplane, a MLG assembly having any serial number and part
number identified in paragraph 1.A.(2) of Hawker Beechcraft
Mandatory Service Bulletin SB 32-3920, dated August 2008.
Special Flight Permit
(k) Special flight permits, as described in Section 21.197 and
Section 21.199 of the Federal Aviation Regulations (14 CFR 21.197
and 21.199), may be issued to operate the
[[Page 58438]]
airplane to a location where the requirements of this AD can be
accomplished, provided that the flight to the flight service center
is at the minimum allowed weight. Concurrence by the Manager,
Wichita Aircraft Certification Office (ACO), FAA, is required prior
to issuance of the special flight permit.
Alternative Methods of Compliance (AMOCs)
(l)(1) The Manager, Wichita ACO, FAA, Attn: William Griffith,
Aerospace Engineer, Airframe Branch, ACE-118W, FAA, Wichita ACO,
1801 Airport Road, Room 100, Mid-Continent Airport, Wichita, Kansas
67209; telephone (316) 946-4116; fax (316) 946-4107; has the
authority to approve AMOCs for this AD, if requested using the
procedures found in 14 CFR 39.19.
(2) To request a different method of compliance or a different
compliance time for this AD, follow the procedures 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.
Material Incorporated by Reference
(m) You must use Hawker Beechcraft Mandatory Service Bulletin SB
32-3920, dated August 2008, 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
Hawker Beechcraft Corporation, 9709 East Central, Wichita, Kansas
67206.
(3) You may review copies of the service information
incorporated by reference 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/code_of_federal_
regulations/ibr_locations.html.
Issued in Renton, Washington, on September 20, 2008.
Michael Kaszycki,
Acting Manager, Transport Airplane Directorate, Aircraft Certification
Service.
[FR Doc. E8-23400 Filed 10-6-08; 8:45 am]
BILLING CODE 4910-13-P