
[Federal Register: April 9, 2009 (Volume 74, Number 67)]
[Rules and Regulations]               
[Page 16116-16117]
From the Federal Register Online via GPO Access [wais.access.gpo.gov]
[DOCID:fr09ap09-6]                         

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DEPARTMENT OF TRANSPORTATION

Federal Aviation Administration

14 CFR Part 39

[Docket No. FAA-2008-1240; Directorate Identifier 2008-NM-098-AD; 
Amendment 39-15877; AD 2009-08-04]
RIN 2120-AA64

 
Airworthiness Directives; Hawker Beechcraft Corporation Model 
BH.125 Series 600A Airplanes and Model HS.125 Series 700A Airplanes 
Modified in Accordance With Supplemental Type Certificate (STC) 
SA2271SW

AGENCY: Federal Aviation Administration (FAA), DOT.

ACTION: Final rule.

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SUMMARY: We are adopting a new airworthiness directive (AD) for certain 
Hawker Beechcraft Corporation Model BH.125 series 600A airplanes and 
Model HS.125 series 700A airplanes. This AD requires inspecting the 
wiring diagrams containing the cockpit blowers and comparing with the 
current airplane configuration, and reworking the wiring if necessary. 
This AD results from a report indicating that a blower motor of the 
cockpit ventilation and avionics cooling system seized up and gave off 
smoke. We are issuing this AD to prevent smoke and fumes in the cockpit 
in the event that a blower motor seizes and overheats due to excessive 
current draw.

DATES: This AD is effective May 14, 2009.
    The Director of the Federal Register approved the incorporation by 
reference of a certain publication listed in the AD as of May 14, 2009.

ADDRESSES: For service information identified in this AD, contact 
Hawker Beechcraft Corporation, Department 62, P.O. Box 85, Wichita, 
Kansas 67201-0085; telephone 316-676-8238; fax 316-676-6706; e-mail 
tmdc@hawkerbeechcraft.com; Internet https://www.hawkerbeechcraft.com/
service_support/pubs.

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 address for the 
Docket Office (telephone 800-647-5527) is the Document Management 
Facility, U.S. Department of Transportation, Docket Operations, M-30, 
West Building Ground Floor, Room W12-140, 1200 New Jersey Avenue, SE., 
Washington, DC 20590.

FOR FURTHER INFORMATION CONTACT: Andy Shaw, Aerospace Engineer, Special 
Certification Office, ASW-190, FAA Southwest Regional Office, 2601 
Meacham Boulevard, Fort Worth, Texas 76137; telephone (817) 222-5188; 
fax (817) 222-5785.

SUPPLEMENTARY INFORMATION: 

Discussion

    We issued a notice of proposed rulemaking (NPRM) to amend 14 CFR 
part 39 to include an airworthiness directive (AD) that would apply to 
certain Hawker Beechcraft Corporation Model BH.125 series 600A 
airplanes and Model HS.125 series 700A airplanes. That NPRM was 
published in the Federal Register on November 26, 2008 (73 FR 71959). 
That NPRM proposed to require inspecting the wiring diagrams containing 
the cockpit blowers and comparing with the current airplane 
configuration, and reworking the wiring if necessary.

Comments

    We gave the public the opportunity to participate in developing 
this AD. We received no comments on the NPRM or on the determination of 
the cost to the public.

Explanation of Change to Final Rule

    We have changed the product identification line to specify the 
airplane type certificate holder.

Conclusion

    We reviewed the relevant data and determined that air safety and 
the public interest require adopting the AD with the change described 
previously. We also determined that this change will not increase the 
economic burden on any operator or increase the scope of the AD.

Costs of Compliance

    We estimate that this AD affects 40 airplanes of U.S. registry. We 
also estimate that it takes about 1 work-hour per product to comply 
with this AD. The average labor rate is $80 per work-hour. Based on 
these figures, we estimate the cost of this AD to U.S. operators to be 
$3,200, or $80 per product.

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.

[[Page 16117]]

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:

2009-08-04 Hawker Beechcraft Corporation (Formerly Raytheon Aircraft 
Company): Amendment 39-15877. Docket No. FAA-2008-1240; Directorate 
Identifier 2008-NM-098-AD.

Effective Date

    (a) This airworthiness directive (AD) is effective May 14, 2009.

Affected ADs

    (b) None.

Applicability

    (c) This AD applies to Hawker Beechcraft Corporation Model 
BH.125 series 600A airplanes and Model HS.125 series 700A airplanes, 
certificated in any category; as identified in Hawker Beechcraft 
Mandatory Service Bulletin SB 24-3850, dated January 2008, which 
have been modified in accordance with Supplemental Type Certificate 
SA2271SW.

Unsafe Condition

    (d) This AD results from a report indicating that a blower motor 
of the cockpit ventilation and avionics cooling system seized up and 
gave off smoke. We are issuing this AD to prevent smoke and fumes in 
the cockpit in the event that a blower motor seizes and overheats 
due to excessive current draw.

Compliance

    (e) Comply with this AD within the compliance times specified, 
unless already done.

Inspection and Rework

    (f) Within 600 flight hours or 6 months after the effective date 
of this AD, whichever occurs first, inspect the wiring diagrams 
containing the cockpit blowers and compare with the current airplane 
configuration, in accordance with the Accomplishment Instructions of 
Hawker Beechcraft Mandatory Service Bulletin SB 24-3850, dated 
January 2008; except as provided by paragraph (g) of this AD.
    (1) If the current airplane configuration does not match the 
applicable cockpit blower wiring diagrams, before further flight, 
rework the wiring using a method approved by the Manager, Special 
Certification Office, ASW-190, Rotorcraft Directorate, FAA. For the 
determination to be approved by the Manager, Special Certification 
Office, as required by this paragraph, the Manager's approval letter 
must specifically refer to this AD.
    (2) If the current airplane configuration matches the applicable 
cockpit blower wiring diagrams, before further flight, rework the 
wiring in accordance with the Accomplishment Instructions of Hawker 
Beechcraft Mandatory Service Bulletin SB 24-3850, dated January 
2008.

No Submission of Certain Information

    (g) Although Hawker Beechcraft Mandatory Service Bulletin SB 24-
3850, dated January 2008, specifies to submit certain information to 
the manufacturer, this AD does not include that requirement.

Alternative Methods of Compliance (AMOCs)

    (h)(1) The Manager, Special Certification Office, ASW-190, 
Rotorcraft Directorate, FAA, Attn: Andy Shaw, Aerospace Engineer, 
Special Certification Office, ASW-190, FAA, Southwest Regional 
Office, 2601 Meacham Boulevard, Fort Worth, Texas 76137; telephone 
(817) 222-5188; fax (817) 222-5785; 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

    (i) You must use Hawker Beechcraft Mandatory Service Bulletin SB 
24-3850, dated January 2008, to do the actions required by this AD, 
unless the AD specifies otherwise.
    (1) For service information identified in this AD, contact 
Hawker Beechcraft Corporation, Department 62, P.O. Box 85, Wichita, 
Kansas 67201-0085; telephone 316-676-8238; fax 316-676-6706; e-mail 
tmdc@hawkerbeechcraft.com; Internet https://
www.hawkerbeechcraft.com/service_support/pubs.
    (2) You may review copies of the service information at the FAA, 
Transport Airplane Directorate, 1601 Lind Avenue, SW., Renton, 
Washington. For information on the availability of this material at 
the FAA, call 425-227-1221 or 425-227-1152.
    (3) You may also review copies of the service information that 
is incorporated by reference 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 April 2, 2009.
Ali Bahrami,
Manager, Transport Airplane Directorate, Aircraft Certification 
Service.
[FR Doc. E9-8080 Filed 4-8-09; 8:45 am]

BILLING CODE 4910-13-P
