[Federal Register Volume 75, Number 94 (Monday, May 17, 2010)]
[Rules and Regulations]
[Pages 27422-27424]
From the Federal Register Online via the Government Publishing Office [www.gpo.gov]
[FR Doc No: 2010-10717]


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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 <greek-i>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: <a href="/cdn-cgi/l/email-protection#29424c5f4047075a4a415e4c44444c5b694f4848074e465f"><span class="__cf_email__" data-cfemail="08636d7e6166267b6b607f6d65656d7a486e6969266f677e">[email protected]</span></a>.

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:
    <bullet> Are consistent with the intent that was proposed in the 
NPRM for correcting the unsafe condition; and
    <bullet> 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]]



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                                                                               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 <greek-i>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:

----------------------------------------------------------------------------------------------------------------
               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: <a href="/cdn-cgi/l/email-protection#563d33203f387825353e21333b3b33241630373778313920"><span class="__cf_email__" data-cfemail="e78c82918e89c994848f90828a8a8295a7818686c9808891">[email protected]</span></a>. 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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