[Federal Register: November 17, 2008 (Volume 73, Number 222)]
[Rules and Regulations]
[Page 67714-67716]
From the Federal Register Online via GPO Access [wais.access.gpo.gov]
[DOCID:fr17no08-3]
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DEPARTMENT OF TRANSPORTATION
Federal Aviation Administration
14 CFR Part 39
[Docket No. FAA-2008-0492; Directorate Identifier 2008-CE-023-AD;
Amendment 39-15734; AD 2008-23-13]
RIN 2120-AA64
Airworthiness Directives; Hawker Beechcraft Corporation Model 390
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 certain
Hawker Beechcraft Corporation (HBC) Model 390 airplanes. This AD
requires you to remove the current preformed packing, elbow fitting,
and jam nut from the left and right hydraulic pump pressure output port
and replace with new parts. This AD also requires you to install a
hydraulic pump case drain check valve. This AD results from nine
occurrences of hydraulic fluid leaking from the engine hydraulic pump
output fitting as a result of an improperly installed elbow connecting
the output port to the pulse dampener hose. We are issuing this AD to
prevent hydraulic fluid leaks from the left and right hydraulic fluid
pump and to prevent the flow of hydraulic fluid into the engine
compartment. The loss of hydraulic fluid can result in loss of airplane
hydraulic system pressure and the consequent loss of hydraulic system
functions including gear extension/retraction, spoiler functions, and
anti-skid braking system actuation. The inability of the hydraulic
installation to isolate flow of hydraulic fluid could result in a
hazardous amount of flammable fluid in the corresponding engine
compartment. These conditions, if not corrected, could result in loss
of system functions and/or fire in the engine compartment.
DATES: This AD becomes effective on December 22, 2008.
On December 22, 2008, the Director of the Federal Register approved
the incorporation by reference of certain publications listed in this
AD.
ADDRESSES: For service information identified in this AD, contact
Hawker Beechcraft Corporation, 9709 East Central, Wichita, Kansas
67201; telephone: (316) 676-5034; fax: (316) 676-6614; Internet:
https://www.hawkerbeechcraft.com/service_support/pubs/.
To view the AD docket, go to U.S. Department of Transportation,
Docket Operations, M-30, West Building Ground Floor, Room W12-140, 1200
New Jersey Avenue, SE., Washington, DC 20590, or on the Internet at
http://www.regulations.gov. The docket number is FAA-2008-0492;
Directorate Identifier 2008-CE-023-AD.
FOR FURTHER INFORMATION CONTACT: Aaron Waters, Aerospace Engineer, 1801
Airport Road, Room 100, Wichita, Kansas 67209; telephone: (316) 946-
4174; fax: (316) 946-4107.
SUPPLEMENTARY INFORMATION:
Discussion
On April 24, 2008, we issued a proposal to amend part 39 of the
Federal Aviation Regulations (14 CFR part 39) to include an AD that
would apply to certain Model 390 airplanes. This proposal was published
in the Federal Register as a notice of proposed rulemaking (NPRM) on
May 1, 2008 (73 FR 23988). The NPRM proposed to require you to remove
the current preformed packing, elbow fitting, and jam nut from the left
and right hydraulic pump pressure output port and replace with new
parts. The NPRM also proposed to require you to install a hydraulic
pump case drain check valve.
Comments
We provided the public the opportunity to participate in developing
this AD. We received no comments on the proposal or on the
determination of the cost to the public.
Conclusion
We have carefully reviewed the available data and determined that
air safety and the public interest require adopting the AD as proposed
except for minor editorial corrections. We have determined that these
minor corrections:
Are consistent with the intent that was proposed in the
NPRM for correcting the unsafe condition; and
Do not add any additional burden upon the public than was
already proposed in the NPRM.
Costs of Compliance
We estimate that this AD affects 182 airplanes in the U.S.
registry.
We estimate the following costs to do the modifications:
[[Page 67715]]
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Total cost Total cost
Labor cost Parts cost per on U.S.
airplane operators
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Hydraulic pressure output fitting $100 $740 $134,680
assembly: 8 work-hours x $80 per
hour = $640.....................
Hydraulic pump case drain check 4,353 5,633 1,025,206
valve: 16 work-hours x $80 per
hour = $1,280...................
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HBC will provide warranty credit as specified in Hawker Beechcraft
Mandatory Service Bulletin SB 29-3869, dated January 2008; and Hawker
Beechcraft Mandatory Service Bulletin SB 29-3851, dated January 2008.
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 AD.
Regulatory Findings
We have 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 that 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 summary of the costs to comply with this AD (and
other information as included in the Regulatory Evaluation) and placed
it in the AD Docket. You may get a copy of this summary by sending a
request to us at the address listed under ADDRESSES. Include ``Docket
No. FAA-2008-0492; Directorate Identifier 2008-CE-023-AD'' in your
request.
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 Federal Aviation Administration amends part 39 of the Federal
Aviation Regulations (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. FAA amends Sec. 39.13 by adding the following new AD:
2008-23-13 Hawker Beechcraft Corporation: Amendment 39-15734; Docket
No. FAA-2008-0492; Directorate Identifier 2008-CE-023-AD.
Effective Date
(a) This AD becomes effective on December 22, 2008.
Affected ADs
(b) None.
Applicability
(c) This AD applies to Model 390 airplanes, serial numbers RB-4
through RB-224, that are certificated in any category.
Unsafe Condition
(d) This AD results from nine occurrences of hydraulic fluid
leaking from the engine hydraulic pump output fitting as a result of
an improperly installed elbow connecting the output port to the
pulse dampener hose. We are issuing this AD to prevent hydraulic
fluid leaking from the left and right hydraulic fluid pump and to
prevent the flow of hydraulic fluid into the engine compartment. The
loss of hydraulic fluid can result in loss of airplane hydraulic
system pressure and the consequent loss of hydraulic system
functions including gear extension/retraction, spoiler functions,
and anti-skid braking system actuation. The inability of the
hydraulic installation to isolate flow of hydraulic fluid could
result in a hazardous amount of flammable fluid in the corresponding
engine compartment. These conditions, if not corrected, could result
in loss of system functions and/or fire in the engine compartment.
Compliance
(e) To address this problem, you must do the following, unless
already done:
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Actions Compliance Procedures
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(1) Remove current preformed Within the next 200 Follow Hawker
packing (part number (P/N) hours time-in- Beechcraft
MS28778-6), elbow fitting service (TIS) after Mandatory Service
(P/N MS21908J6), and jam December 22, 2008 Bulletin SB 29-
nut (P/N AN924-6J) from the (the effective date 3869, dated January
left and right hydraulic of this AD) or 2008.
pump pressure output port within the next 6
and install new preformed months after
packing (P/N MS28778-6), December 22, 2008
union (P/N MS21902J6), and (the effective date
swivel fitting (P/N of this AD),
NAS1762J0606) in the left whichever occurs
and right hydraulic first.
pressure pump output port.
(2) Install hydraulic pump Within the next 200 Hawker Beechcraft
case drain check valve Kit hours TIS after Mandatory Service
No. 390-5803-0001. December 22, 2008 Bulletin SB 29-
(the effective date 3851, dated January
of this AD) or 2008.
within the next 6
months after
December 22, 2008
(the effective date
of this AD),
whichever occurs
first.
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[[Page 67716]]
Alternative Methods of Compliance (AMOCs)
(f) The Manager, Wichita Aircraft Certification Office (ACO),
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: Aaron Waters, Aerospace Engineer, Wichita ACO, 1801 Airport
Road, Room 100, Wichita, Kansas 67209; telephone: (316) 946-4174;
fax: (316) 946-4107. 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
(g) You must use Hawker Beechcraft Mandatory Service Bulletin SB
29-3869, dated January 2008; and Hawker Beechcraft Mandatory Service
Bulletin SB 29-3851, dated January 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
67201; telephone: (316) 676-5034; fax: (316) 676-6614; Internet:
https://www.hawkerbeechcraft.com/service_support/pubs/.
(3) You may review copies at the FAA, Central Region, Office of
the Regional Counsel, 901 Locust, 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/code_
of_federal_regulations/ibr_locations.html.
Issued in Kansas City, Missouri, on November 5, 2008.
Patrick R. Mullen,
Acting Manager, Small Airplane Directorate, Aircraft Certification
Service.
[FR Doc. E8-26879 Filed 11-14-08; 8:45 am]
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