
[Federal Register Volume 78, Number 140 (Monday, July 22, 2013)]
[Rules and Regulations]
[Pages 43768-43770]
From the Federal Register Online via the Government Printing Office [www.gpo.gov]
[FR Doc No: 2013-16929]


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DEPARTMENT OF TRANSPORTATION

Federal Aviation Administration

14 CFR Part 39

[Docket No. FAA-2013-0213; Directorate Identifier 2012-NM-207-AD; 
Amendment 39-17512; AD 2013-14-07]
RIN 2120-AA64


Airworthiness Directives; Learjet Inc. Airplanes

AGENCY: Federal Aviation Administration (FAA), DOT.

ACTION: Final rule.

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SUMMARY: We are adopting a new airworthiness directive (AD) for certain 
Learjet Inc. Model 45 airplanes. This AD was prompted by a report that 
the fire barrier seal on the external baggage door does not seal the 
surrounding door structure due to incorrect positioning of the barrier. 
This AD requires modifying the fire seal on the baggage door, including 
doing inspections of the fire seal for correct contact and corrective 
action if necessary. We are issuing this AD to prevent improper sealing 
of the baggage door, which could increase the risk of an uncontained 
fire in the baggage compartment.

DATES: This AD is effective August 26, 2013.
    The Director of the Federal Register approved the incorporation by 
reference of certain publications listed in the AD as of August 26, 
2013.

ADDRESSES: For service information identified in this AD, contact 
Learjet,

[[Page 43769]]

Inc., One Learjet Way, Wichita, KS 67209-2942; telephone 316-946-2000; 
fax 316-946-2220; email ac.ict@aero.bombardier.com; Internet http://www.bombardier.com. You may review copies of the referenced 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.

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 (phone: 800-647-5527) is 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: Adam Neubauer, Aerospace Engineer, 
Airframe Branch, ACE-118W, FAA, Wichita Aircraft Certification Office, 
1801 Airport Road, Room 100, Mid-Continent Airport, Wichita, Kansas 
67209; phone: 316-946-4156; fax: 316-946-4107; email: 
adam.neubauer@faa.gov.

SUPPLEMENTARY INFORMATION: 

Discussion

    We issued a notice of proposed rulemaking (NPRM) to amend 14 CFR 
part 39 to include an AD that would apply to the specified products. 
The NPRM published in the Federal Register on March 27, 2013 (78 FR 
18529). The NPRM proposed to require modifying the fire seal on the 
baggage door, including doing inspections of the fire seal for correct 
contact and corrective action if necessary.

Comments

    We gave the public the opportunity to participate in developing 
this AD. We received no comments on the NPRM (78 FR 18529, March 27, 
2013) or on the determination of the cost to the public.

Conclusion

    We reviewed the relevant data and determined that air safety and 
the public interest require adopting this AD as proposed.

Costs of Compliance

    We estimate that this AD affects 342 airplanes of U.S. registry.
    We estimate the following costs to comply with this AD:

                                                 Estimated Costs
----------------------------------------------------------------------------------------------------------------
                                                            Parts      Cost per
              Action                      Labor cost         cost       product        Cost on U.S. operators
----------------------------------------------------------------------------------------------------------------
Modification......................  11 work-hours x $85       $453          $1,388                      $474,696
                                     per hour = $935.
----------------------------------------------------------------------------------------------------------------

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 the DOT Regulatory Policies 
and Procedures (44 FR 11034, February 26, 1979),
    (3) Will not affect intrastate aviation in Alaska, and
    (4) 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.

List of Subjects in 14 CFR Part 39

    Air transportation, Aircraft, Aviation safety, Incorporation by 
reference, Safety.

Adoption of the Amendment

    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 airworthiness 
directive (AD):

2013-14-07 Learjet Inc.: Amendment 39-17512; Docket No. FAA-2013-
0213; Directorate Identifier 2012-NM-207-AD.

(a) Effective Date

    This AD is effective August 26, 2013.

(b) Affected ADs

    None.

(c) Applicability

    This AD applies to Learjet Model 45 airplanes, certificated in 
any category; serial numbers 45-002 through 45-380 inclusive, 45-382 
through 45-396 inclusive, 45-398 through 45-405 inclusive, 45-2001 
through 45-2114 inclusive, 45-2116, 45-2118, 45-2120, 45-2122, and 
45-2124 through 45-2126 inclusive.

(d) Subject

    Joint Aircraft System Component (JASC)/Air Transport Association 
(ATA) of America Code 25: Equipment/Furnishings.

(e) Unsafe Condition

    This AD was prompted by a report that the fire barrier seal on 
the external baggage door does not seal the surrounding door 
structure due to incorrect positioning of the barrier. We are 
issuing this AD to prevent improper sealing of the baggage door, 
which could increase the risk of an uncontained fire in the baggage 
compartment.

[[Page 43770]]

(f) Compliance

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

(g) Modification

    Within 300 flight hours after the effective date of this AD: 
Modify the fire seal on the baggage door, including doing general 
visual inspections of the fire seal for correct contact and all 
applicable corrective actions, in accordance with the Accomplishment 
Instructions of Bombardier Recommended Service Bulletin 40-25-25 or 
Bombardier Recommended Service Bulletin 45-25-35, both Revision 3, 
both dated February 6, 2012, as applicable. Do all applicable 
corrective actions before further flight.

(h) Credit for Previous Actions

    This paragraph provides credit for the actions required by 
paragraph (g) of this AD, if those actions were performed before the 
effective date of this AD using the applicable service information 
specified in paragraphs (h)(1), (h)(2), (h)(3), and (h)(4) of this 
AD (which are not incorporated by reference in this AD):
    (1) Bombardier Service Bulletin 40-25-25, Revision 1, dated 
August 23, 2010.
    (2) Bombardier Service Bulletin 40-25-25, Revision 2, dated 
February 21, 2011.
    (3) Bombardier Service Bulletin 45-25-35, Revision 1, dated 
August 23, 2010.
    (4) Bombardier Service Bulletin 45-25-35, Revision 2, dated 
February 21, 2011.

(i) Parts Installation Limitation

    As of the effective date of this AD, no person may install any 
part identified in paragraph 2.B., ``Identification Table,'' of 
Bombardier Recommended Service Bulletin 40-25-25 or Bombardier 
Recommended Service Bulletin 45-25-35, both Revision 3, both dated 
February 6, 2012, on any airplane, unless the actions specified in 
paragraph (g) of this AD are done concurrently with the 
installation.

(j) Alternative Methods of Compliance (AMOCs)

    (1) 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. In accordance with 14 
CFR 39.19, send your request to your principal inspector or local 
Flight Standards District Office, as appropriate. If sending 
information directly to the manager of the ACO, send it to the 
attention of the person identified in the Related Information 
section of this AD.
    (2) Before using any approved AMOC, notify your appropriate 
principal inspector, or lacking a principal inspector, the manager 
of the local flight standards district office/certificate holding 
district office.

(k) Related Information

    (1) For more information about this AD, contact Adam Neubauer, 
Aerospace Engineer, Airframe Branch, ACE-118W, FAA, Wichita Aircraft 
Certification Office, 1801 Airport Road, Room 100, Mid-Continent 
Airport, Wichita, Kansas 67209; phone: 316-946-4156; fax: 316-946-
4107; email: adam.neubauer@faa.gov.
    (2) Service information identified in this AD that is not 
incorporated by reference in this AD may be obtained at the 
addresses specified in paragraphs (l)(3) and (l)(4) of this AD.

(l) Material Incorporated by Reference

    (1) The Director of the Federal Register approved the 
incorporation by reference (IBR) of the service information listed 
in this paragraph under 5 U.S.C. 552(a) and 1 CFR part 51.
    (2) You must use this service information as applicable to do 
the actions required by this AD, unless the AD specifies otherwise.
    (i) Bombardier Recommended Service Bulletin 40-25-25, Revision 
3, dated February 6, 2012.
    (ii) Bombardier Recommended Service Bulletin 45-25-35, Revision 
3, dated February 6, 2012.
    (3) For service information identified in this AD, contact 
Learjet, Inc., One Learjet Way, Wichita, KS 67209-2942; telephone 
316-946-2000; fax 316-946-2220; email ac.ict@aero.bombardier.com; 
Internet http://www.bombardier.com.
    (4) You may view this service information at the FAA, Transport 
Airplane Directorate, 1601 Lind Avenue SW., Renton, WA. For 
information on the availability of this material at the FAA, call 
425-227-1221.
    (5) You may view this 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/cfr/ibr-locations.html.

    Issued in Renton, Washington, on July 5, 2013.
Jeffrey E. Duven,
Acting Manager, Transport Airplane Directorate, Aircraft Certification 
Service.

[FR Doc. 2013-16929 Filed 7-19-13; 8:45 am]
BILLING CODE 4910-13-P


