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[Federal Register: May 17, 2010 (Volume 75, Number 94)]
[Rules and Regulations]
[Page 27422-27424]
From the Federal Register Online via GPO Access [wais.access.gpo.gov]
[DOCID:fr17my10-10]

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DEPARTMENT OF TRANSPORTATION

Federal Aviation Administration

14 CFR Part 39

[Docket No. FAA-2010-0158; Directorate Identifier 2010-CE-006-AD;
Amendment 39-16289; AD 2010-10-10]
RIN 2120-AA64

Airworthiness Directives; Hawker Beechcraft Corporation (Type
Certificate No. A00010WI Previously Held by Raytheon Aircraft Company)
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 Model 390 airplanes. This AD requires you
to inspect the essential bus lightning strike protection for proper
installation of metal oxide varistor (MOV) and spark gap wiring. This
AD also requires you to rework the wiring as necessary to achieve the
required lightning strike/surge protection. This AD results from a
report that the wires to the MOV and spark gap were swapped. We are
issuing this AD to detect and correct improper installation of the MOV
and spark gap wiring, which could result in overload of the MOV in a
lightning strike and allow electrical energy to continue to the
essential bus and disable equipment that receives power from the
essential bus. The disabled equipment could include the autopilot,
anti-skid system, hydraulic indicator, spoiler system, pilot primary
flight display, audio panel, or the 1 air data computer. This
failure could lead to a significant increase in pilot workload during
adverse operating conditions.

DATES: This AD becomes effective on June 21, 2010.
    On June 21, 2010, 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-2010-0158;
Directorate Identifier 2010-CE-006-AD.

FOR FURTHER INFORMATION CONTACT: Kevin Schwemmer, Aerospace Engineer,
FAA, Wichita Aircraft Certification Office (ACO), 1801 Airport Road,
Room 100, Wichita, Kansas 67209; telephone: (316) 946-4174; fax: (316)
946-4107; e-mail: kevin.schwemmer@faa.gov.

SUPPLEMENTARY INFORMATION:

Discussion

    On February 16, 2010, 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 Hawker Beechcraft Corporation Model 390
airplanes. This proposal was published in the Federal Register as a
notice of proposed rulemaking (NPRM) on February 23, 2010 (75 FR 8001).
The NPRM proposed to require you to inspect the essential bus lightning
strike protection for proper installation of metal oxide varistor (MOV)
and spark gap wiring. The NPRM also proposed to require you to rework
the wiring as necessary to achieve the required lightning strike/surge
protection.

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 170 airplanes in the U.S.
registry.
    We estimate the following costs to do the inspection (includes any
necessary follow-on action):

[[Page 27423]]

----------------------------------------------------------------------------------------------------------------
                                                                               Total cost per     Total cost on
                 Labor cost                             Parts cost                airplane       U.S. operators
----------------------------------------------------------------------------------------------------------------
3 work-hours x $85 per hour = $255..........  Not applicable................              $255           $43,350
----------------------------------------------------------------------------------------------------------------

    Warranty credit may be given to the extent specified in Hawker
Beechcraft Mandatory Service Bulletin SB 24-3995, issued September
2009.

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-2010-0158; Directorate Identifier 2010-CE-006-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:

2010-10-10 Hawker Beechcraft Corporation (Type Certificate No.
A00010WI Previously Held by Raytheon Aircraft Company): Amendment
39-16289; Docket No. FAA-2010-0158; Directorate Identifier 2010-CE-
006-AD.

Effective Date

    (a) This AD becomes effective on June 21, 2010.

Affected ADs

    (b) None.

Applicability

    (c) This AD applies to Model 390 airplanes, serial numbers RB-4
through RB-248, that are certificated in any category.

Subject

    (d) Air Transport Association of America (ATA) Code 24: Electric
Power.

Unsafe Condition

    (e) This AD results from a report that the metal oxide varistor
(MOV) and spark gap wiring of the essential bus lightning strike
protection were swapped. We are issuing this AD to detect and
correct improper installation of the MOV and spark gap wiring, which
could result in overload of the MOV in a lightning strike and allow
electrical energy to continue to the essential bus and disable
equipment that receives power from the essential bus. The disabled
equipment could include the autopilot, anti-skid system, hydraulic
indicator, spoiler system, pilot primary flight display, audio
panel, or the 1 air data computer. This failure could lead
to a significant increase in pilot workload during adverse operating
conditions.

Compliance

    (f) To address this problem, you must do the following, unless
already done:

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               Actions                             Compliance                            Procedures
----------------------------------------------------------------------------------------------------------------
(1) Inspect the essential bus         Within the next 200 hours time-in-    Follow Hawker Mandatory Service
 lightning strike protection for       service after June 21, 2010 (the      Bulletin SB 24-3995, issued
 proper installation of MOV and        effective date of this AD) or         September 2009.
 spark gap wiring.                     within the next 12 months after
                                       June 21, 2010 (the effective date
                                       of this AD), whichever occurs
                                       first.
(2) Where improper wiring             Before further flight after the       Follow Hawker Mandatory Service
 installation is found, rework the     inspection in paragraph (f)(1) of     Bulletin SB 24-3995, issued
 essential bus lightning strike        this AD.                              September 2009.
 wiring installation for the MOV and
 spark gap.
----------------------------------------------------------------------------------------------------------------

Alternative Methods of Compliance (AMOCs)

    (g) 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: Kevin Schwemmer, Aerospace Engineer, FAA, Wichita Aircraft
Certification Office (ACO), 1801 Airport Road, Room 100, Wichita,
Kansas 67209; telephone: (316) 946-4174; fax: (316) 946-4107; e-
mail: kevin.schwemmer@faa.gov. 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

    (h) You must use Follow Hawker Mandatory Service Bulletin SB 24-
3995, issued September 2009, to do the actions required by this AD,
unless the AD specifies otherwise.

[[Page 27424]]

    (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 of the service information
incorporated by reference for this AD at the FAA, Central Region,
Office of the Regional Counsel, 901 Locust, Kansas City, Missouri
64106. For information on the availability of this material at the
Central Region, call (816) 329-3768.
    (4) You may also review copies of the service information
incorporated by reference for this AD 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 April 30, 2010.
Steven W. Thompson,
Acting Manager, Small Airplane Directorate, Aircraft Certification
Service.
[FR Doc. 2010-10717 Filed 5-14-10; 8:45 am]
BILLING CODE 4910-13-P
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